Observation of the semileptonic decays of BS and Λb hadrons at LEP

D. Buskulic, D. Decamp, C. Goy, J. P. Lees, M. N. Minard, B. Mours, R. Alemany, F. Ariztizabal, P. Comas, J. M. Crespo, M. Delfino, E. Fernandez, V. Gaitan, Ll Garrido, A. Pacheco, A. Pascual, D. Creanza, M. de Palma, A. Farilla, G. IaselliG. Maggi, M. Maggi, S. Natali, S. Nuzzo, M. Quattromini, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, X. Huang, J. Lin, J. Lou, C. Qiao, T. Wang, Y. Xie, D. Xu, R. Xu, J. Zhang, W. Zhao, W. B. Atwood, L. A.T. Bauerdick, E. Blucher, G. Bonvicini, F. Bossi, J. Boudreau, T. H. Burnett, H. Drevermann, R. W. Forty, R. Hagelberg, J. Harvey, S. Haywood, J. Hilgart, R. Jacobsen, B. Jost, J. Knobloch, E. Lançon, I. Lehraus, T. Lohse, A. Lusiani, M. Martinez, P. Mato, T. Mattison, H. Meinhard, S. Menary, T. Meyer, A. Minten, R. Miquel, H. G. Moser, J. Nash, P. Palazzi, J. A. Perlas, F. Ranjard, G. Redlinger, L. Rolandi, A. Roth, J. Rothberg, T. Ruan, M. Saich, D. Schlatter, M. Schmelling, F. Sefkow, W. Tejessy, H. Wachsmuth, W. Wiedenmann, T. Wildish, W. Witzeling, J. Wotschack, Z. Ajaltouni, F. Badaud, M. Bardadin-Otwinowska, A. M. Bencheikh, R. El Fellous, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, J. C. Montret, D. Pallin, P. Perret, B. Pietrzyk, J. Proriol, F. Prulhière, G. Stimpfl, T. Fearnley, J. D. Hansen, J. R. Hansen, P. H. Hansen, R. Møllerud, B. S. Nilsson, I. Efthymiopoulos, A. Kyriakis, E. Simopoulou, A. Vayaki, K. Zachariadou, J. Badier, A. Blondel, G. Bonneaud, J. C. Brient, G. Fouque, A. Gamess, S. Orteu, A. Rosowsky, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, D. J. Candlin, M. I. Parsons, E. Veitch, L. Moneta, G. Parrini, M. Corden, C. Georgiopoulos, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, S. Wasserbaech, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, P. Campana, G. Capon, F. Cerutti, V. Chiarella, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, L. Passalacqua, M. Pepe-Altarelli, P. Picchi, B. Altoon, O. Boyle, P. Colrain, I. ten Have, J. G. Lynch, W. Maitland, W. T. Morton, C. Raine, J. M. Scarr, K. Smith, A. S. Thompson, R. M. Turnbull, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E. E. Kluge, Y. Maumary, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A. T. Belk, R. Beuselinck, D. M. Binnie, W. Cameron, M. Cattaneo, D. J. Colling, P. J. Dornan, S. Dugeay, A. M. Greene, J. F. Hassard, N. M. Lieske, S. J. Patton, D. G. Payne, M. J. Phillips, J. K. Sedgbeer, I. R. Tomalin, A. G. Wright, P. Girtler, D. Kuhn, G. Rudolph, C. K. Bowdery, T. J. Brodbeck, A. J. Finch, F. Foster, G. Hughes, D. Jackson, N. R. Keemer, M. Nuttall, A. Patel, T. Sloan, S. W. Snow, E. P. Whelan, T. Barczewski, K. Kleinknecht, J. Raab, B. Renk, S. Roehn, H. G. Sander, H. Schmidt, F. Steeg, S. M. Walther, B. Wolf, J. J. Aubert, C. Benchouk, V. Bernard, A. Bonissent, J. Carr, P. Coyle, J. Drinkard, F. Etienne, S. Papalexiou, P. Payre, Z. Qian, D. Rousseau, P. Schwemling, M. Talby, S. Adlung, C. Bauer, W. Blum, D. Brown, G. Cowan, B. Dehning, H. Dietl, F. Dydal, M. Fernandez-Bosman, M. Frank, A. W. Halley, J. Lauber, G. Lütjens, G. Lutz, W. Männer, R. Richter, J. Schröder, A. S. Schwarz, R. Settles, H. Seywerd, U. Stierlin, U. Stiegler, R. St Denis, M. Takashima, J. Thomas, G. Wolf, V. Bertin, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, J. F. Grivaz, Ph Heusse, P. Janot, D. W. Kim, F. Le Diberder, J. Lefrançois, A. M. Lutz, M. H. Schune, J. J. Veillet, I. Videau, Z. Zhang, F. Zomer, D. Abbaneo, S. R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, M. Carpinelli, M. A. Ciocci, R. Dell'Orso, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M. A. Giorgi, F. Ligabue, E. B. Mannelli, P. S. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, C. Vannini, A. Venturi, P. G. Verdini, J. Walsh, J. M. Carter, M. G. Green, P. V. March, Ll M. Mir, T. Medcalf, I. S. Quazi, J. A. Strong, L. R. West, D. R. Botterill, R. W. Clifft, T. R. Edgecock, M. Edwards, S. M. Fisher, T. J. Jones, P. R. Norton, D. P. Salmon, J. C. Thompson, B. Bloch-Devaux, P. Colas, W. Kozanecki, M. C. Lemaire, E. Locci, S. Loucatos, E. Monnier, P. Perez, F. Perrier, J. Rander, J. F. Renardy, A. Roussarie, J. P. Schuller, J. Schwindling, D. Si Mohand, B. Vallage, R. P. Johnson, A. M. Litke, G. Taylor, J. Wear, J. G. Ashman, W. Babbage, C. N. Booth, C. Buttar, R. E. Carney, S. Cartwright, F. Combley, F. Hatfield, P. Reeves, L. F. Thompson, E. Barberio, S. Brandt, C. Grupen, L. Mirabito, U. Schäfer, G. Ganis, G. Giannini, B. Gobbo, F. Ragusa, L. Bellantoni, D. Cinabro, J. S. Conway, D. F. Cowen, Z. Feng, D. P.S. Ferguson, Y. S. Gao, J. Grahl, J. L. Harton, R. C. Jared, B. W. LeClaire, C. Lishka, Y. B. Pan, J. R. Pater, J. F. Pusztaszeri, Y. Saadi, V. Sharma, M. Schmitt, Z. H. Shi, Y. H. Tang, A. M. Walsh, F. V. Weber, M. H. Whitney, Lan Wu Sau Lan Wu, X. Wu, G. Zobernig

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Abstract

In 450 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of Ds -ℓ+ and Λc +ℓ- combinations have been measured. 16.0 ± 4.3 Ds -ℓ+ combinations were observed in the Ds - → ππ- channel and 17.0 ± 4.5 combinations were observed in the Ds - → K*0K- channel. 21.0 ± 5.0 Λc +- combinations were observed, with the Λc + reconstructed in the decay mode Λc + → pK-π+. These events provide evidence for the decays Bs → Ds -Xℓ+ν and Λb → Λc +Xℓ-ν. Assuming that the Bs and Λb semileptonic decays are dominantly three-body, these observed yields, after background subtraction, translate into the following product branching ratios: Br(b → Bs)Br(Bs → Ds -Xℓ+ν) = 0.040±0.011 -0.012 +0.010, Br(b → Λb)Br(Λb → Λc +Xℓ-ν) = 0.030±0.007±0.009.

Original languageEnglish (US)
Pages (from-to)145-156
Number of pages12
JournalPhysics Letters B
Volume294
Issue number1
DOIs
StatePublished - Nov 5 1992

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hadrons
decay
subtraction
detectors
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All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Buskulic, D., Decamp, D., Goy, C., Lees, J. P., Minard, M. N., Mours, B., ... Zobernig, G. (1992). Observation of the semileptonic decays of BS and Λb hadrons at LEP. Physics Letters B, 294(1), 145-156. https://doi.org/10.1016/0370-2693(92)91654-R
Buskulic, D. ; Decamp, D. ; Goy, C. ; Lees, J. P. ; Minard, M. N. ; Mours, B. ; Alemany, R. ; Ariztizabal, F. ; Comas, P. ; Crespo, J. M. ; Delfino, M. ; Fernandez, E. ; Gaitan, V. ; Garrido, Ll ; Pacheco, A. ; Pascual, A. ; Creanza, D. ; de Palma, M. ; Farilla, A. ; Iaselli, G. ; Maggi, G. ; Maggi, M. ; Natali, S. ; Nuzzo, S. ; Quattromini, M. ; Ranieri, A. ; Raso, G. ; Romano, F. ; Ruggieri, F. ; Selvaggi, G. ; Silvestris, L. ; Tempesta, P. ; Zito, G. ; Gao, Y. ; Hu, H. ; Huang, D. ; Huang, X. ; Lin, J. ; Lou, J. ; Qiao, C. ; Wang, T. ; Xie, Y. ; Xu, D. ; Xu, R. ; Zhang, J. ; Zhao, W. ; Atwood, W. B. ; Bauerdick, L. A.T. ; Blucher, E. ; Bonvicini, G. ; Bossi, F. ; Boudreau, J. ; Burnett, T. H. ; Drevermann, H. ; Forty, R. W. ; Hagelberg, R. ; Harvey, J. ; Haywood, S. ; Hilgart, J. ; Jacobsen, R. ; Jost, B. ; Knobloch, J. ; Lançon, E. ; Lehraus, I. ; Lohse, T. ; Lusiani, A. ; Martinez, M. ; Mato, P. ; Mattison, T. ; Meinhard, H. ; Menary, S. ; Meyer, T. ; Minten, A. ; Miquel, R. ; Moser, H. G. ; Nash, J. ; Palazzi, P. ; Perlas, J. A. ; Ranjard, F. ; Redlinger, G. ; Rolandi, L. ; Roth, A. ; Rothberg, J. ; Ruan, T. ; Saich, M. ; Schlatter, D. ; Schmelling, M. ; Sefkow, F. ; Tejessy, W. ; Wachsmuth, H. ; Wiedenmann, W. ; Wildish, T. ; Witzeling, W. ; Wotschack, J. ; Ajaltouni, Z. ; Badaud, F. ; Bardadin-Otwinowska, M. ; Bencheikh, A. M. ; El Fellous, R. ; Falvard, A. ; Gay, P. ; Guicheney, C. ; Henrard, P. ; Jousset, J. ; Michel, B. ; Montret, J. C. ; Pallin, D. ; Perret, P. ; Pietrzyk, B. ; Proriol, J. ; Prulhière, F. ; Stimpfl, G. ; Fearnley, T. ; Hansen, J. D. ; Hansen, J. R. ; Hansen, P. H. ; Møllerud, R. ; Nilsson, B. S. ; Efthymiopoulos, I. ; Kyriakis, A. ; Simopoulou, E. ; Vayaki, A. ; Zachariadou, K. ; Badier, J. ; Blondel, A. ; Bonneaud, G. ; Brient, J. C. ; Fouque, G. ; Gamess, A. ; Orteu, S. ; Rosowsky, A. ; Rougé, A. ; Rumpf, M. ; Tanaka, R. ; Videau, H. ; Candlin, D. J. ; Parsons, M. I. ; Veitch, E. ; Moneta, L. ; Parrini, G. ; Corden, M. ; Georgiopoulos, C. ; Ikeda, M. ; Lannutti, J. ; Levinthal, D. ; Mermikides, M. ; Sawyer, L. ; Wasserbaech, S. ; Antonelli, A. ; Baldini, R. ; Bencivenni, G. ; Bologna, G. ; Campana, P. ; Capon, G. ; Cerutti, F. ; Chiarella, V. ; D'Ettorre-Piazzoli, B. ; Felici, G. ; Laurelli, P. ; Mannocchi, G. ; Murtas, F. ; Murtas, G. P. ; Passalacqua, L. ; Pepe-Altarelli, M. ; Picchi, P. ; Altoon, B. ; Boyle, O. ; Colrain, P. ; ten Have, I. ; Lynch, J. G. ; Maitland, W. ; Morton, W. T. ; Raine, C. ; Scarr, J. M. ; Smith, K. ; Thompson, A. S. ; Turnbull, R. M. ; Brandl, B. ; Braun, O. ; Geiges, R. ; Geweniger, C. ; Hanke, P. ; Hepp, V. ; Kluge, E. E. ; Maumary, Y. ; Putzer, A. ; Rensch, B. ; Stahl, A. ; Tittel, K. ; Wunsch, M. ; Belk, A. T. ; Beuselinck, R. ; Binnie, D. M. ; Cameron, W. ; Cattaneo, M. ; Colling, D. J. ; Dornan, P. J. ; Dugeay, S. ; Greene, A. M. ; Hassard, J. F. ; Lieske, N. M. ; Patton, S. J. ; Payne, D. G. ; Phillips, M. J. ; Sedgbeer, J. K. ; Tomalin, I. R. ; Wright, A. G. ; Girtler, P. ; Kuhn, D. ; Rudolph, G. ; Bowdery, C. K. ; Brodbeck, T. J. ; Finch, A. J. ; Foster, F. ; Hughes, G. ; Jackson, D. ; Keemer, N. R. ; Nuttall, M. ; Patel, A. ; Sloan, T. ; Snow, S. W. ; Whelan, E. P. ; Barczewski, T. ; Kleinknecht, K. ; Raab, J. ; Renk, B. ; Roehn, S. ; Sander, H. G. ; Schmidt, H. ; Steeg, F. ; Walther, S. M. ; Wolf, B. ; Aubert, J. J. ; Benchouk, C. ; Bernard, V. ; Bonissent, A. ; Carr, J. ; Coyle, P. ; Drinkard, J. ; Etienne, F. ; Papalexiou, S. ; Payre, P. ; Qian, Z. ; Rousseau, D. ; Schwemling, P. ; Talby, M. ; Adlung, S. ; Bauer, C. ; Blum, W. ; Brown, D. ; Cowan, G. ; Dehning, B. ; Dietl, H. ; Dydal, F. ; Fernandez-Bosman, M. ; Frank, M. ; Halley, A. W. ; Lauber, J. ; Lütjens, G. ; Lutz, G. ; Männer, W. ; Richter, R. ; Schröder, J. ; Schwarz, A. S. ; Settles, R. ; Seywerd, H. ; Stierlin, U. ; Stiegler, U. ; Denis, R. St ; Takashima, M. ; Thomas, J. ; Wolf, G. ; Bertin, V. ; Boucrot, J. ; Callot, O. ; Chen, X. ; Cordier, A. ; Davier, M. ; Grivaz, J. F. ; Heusse, Ph ; Janot, P. ; Kim, D. W. ; Le Diberder, F. ; Lefrançois, J. ; Lutz, A. M. ; Schune, M. H. ; Veillet, J. J. ; Videau, I. ; Zhang, Z. ; Zomer, F. ; Abbaneo, D. ; Amendolia, S. R. ; Bagliesi, G. ; Batignani, G. ; Bosisio, L. ; Bottigli, U. ; Bradaschia, C. ; Carpinelli, M. ; Ciocci, M. A. ; Dell'Orso, R. ; Ferrante, I. ; Fidecaro, F. ; Foà, L. ; Focardi, E. ; Forti, F. ; Giassi, A. ; Giorgi, M. A. ; Ligabue, F. ; Mannelli, E. B. ; Marrocchesi, P. S. ; Messineo, A. ; Palla, F. ; Rizzo, G. ; Sanguinetti, G. ; Steinberger, J. ; Tenchini, R. ; Tonelli, G. ; Triggiani, G. ; Vannini, C. ; Venturi, A. ; Verdini, P. G. ; Walsh, J. ; Carter, J. M. ; Green, M. G. ; March, P. V. ; Mir, Ll M. ; Medcalf, T. ; Quazi, I. S. ; Strong, J. A. ; West, L. R. ; Botterill, D. R. ; Clifft, R. W. ; Edgecock, T. R. ; Edwards, M. ; Fisher, S. M. ; Jones, T. J. ; Norton, P. R. ; Salmon, D. P. ; Thompson, J. C. ; Bloch-Devaux, B. ; Colas, P. ; Kozanecki, W. ; Lemaire, M. C. ; Locci, E. ; Loucatos, S. ; Monnier, E. ; Perez, P. ; Perrier, F. ; Rander, J. ; Renardy, J. F. ; Roussarie, A. ; Schuller, J. P. ; Schwindling, J. ; Si Mohand, D. ; Vallage, B. ; Johnson, R. P. ; Litke, A. M. ; Taylor, G. ; Wear, J. ; Ashman, J. G. ; Babbage, W. ; Booth, C. N. ; Buttar, C. ; Carney, R. E. ; Cartwright, S. ; Combley, F. ; Hatfield, F. ; Reeves, P. ; Thompson, L. F. ; Barberio, E. ; Brandt, S. ; Grupen, C. ; Mirabito, L. ; Schäfer, U. ; Ganis, G. ; Giannini, G. ; Gobbo, B. ; Ragusa, F. ; Bellantoni, L. ; Cinabro, D. ; Conway, J. S. ; Cowen, D. F. ; Feng, Z. ; Ferguson, D. P.S. ; Gao, Y. S. ; Grahl, J. ; Harton, J. L. ; Jared, R. C. ; LeClaire, B. W. ; Lishka, C. ; Pan, Y. B. ; Pater, J. R. ; Pusztaszeri, J. F. ; Saadi, Y. ; Sharma, V. ; Schmitt, M. ; Shi, Z. H. ; Tang, Y. H. ; Walsh, A. M. ; Weber, F. V. ; Whitney, M. H. ; Sau Lan Wu, Lan Wu ; Wu, X. ; Zobernig, G. / Observation of the semileptonic decays of BS and Λb hadrons at LEP. In: Physics Letters B. 1992 ; Vol. 294, No. 1. pp. 145-156.
@article{83bbf815b6594d8ea7c46bfa40166da6,
title = "Observation of the semileptonic decays of BS and Λb hadrons at LEP",
abstract = "In 450 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of Ds -ℓ+ and Λc +ℓ- combinations have been measured. 16.0 ± 4.3 Ds -ℓ+ combinations were observed in the Ds - → ππ- channel and 17.0 ± 4.5 combinations were observed in the Ds - → K*0K- channel. 21.0 ± 5.0 Λc +ℓ- combinations were observed, with the Λc + reconstructed in the decay mode Λc + → pK-π+. These events provide evidence for the decays Bs → Ds -Xℓ+ν and Λb → Λc +Xℓ-ν. Assuming that the Bs and Λb semileptonic decays are dominantly three-body, these observed yields, after background subtraction, translate into the following product branching ratios: Br(b → Bs)Br(Bs → Ds -Xℓ+ν) = 0.040±0.011 -0.012 +0.010, Br(b → Λb)Br(Λb → Λc +Xℓ-ν) = 0.030±0.007±0.009.",
author = "D. Buskulic and D. Decamp and C. Goy and Lees, {J. P.} and Minard, {M. N.} and B. Mours and R. Alemany and F. Ariztizabal and P. Comas and Crespo, {J. M.} and M. Delfino and E. Fernandez and V. Gaitan and Ll Garrido and A. Pacheco and A. Pascual and D. Creanza and {de Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and M. Maggi and S. Natali and S. Nuzzo and M. Quattromini and A. Ranieri and G. Raso and F. Romano and F. Ruggieri and G. Selvaggi and L. Silvestris and P. Tempesta and G. Zito and Y. Gao and H. Hu and D. Huang and X. Huang and J. Lin and J. Lou and C. Qiao and T. Wang and Y. Xie and D. Xu and R. Xu and J. Zhang and W. Zhao and Atwood, {W. B.} and Bauerdick, {L. A.T.} and E. Blucher and G. Bonvicini and F. Bossi and J. Boudreau and Burnett, {T. H.} and H. Drevermann and Forty, {R. W.} and R. Hagelberg and J. Harvey and S. Haywood and J. Hilgart and R. Jacobsen and B. Jost and J. Knobloch and E. Lan{\cc}on and I. Lehraus and T. Lohse and A. Lusiani and M. Martinez and P. Mato and T. Mattison and H. Meinhard and S. Menary and T. Meyer and A. Minten and R. Miquel and Moser, {H. G.} and J. Nash and P. Palazzi and Perlas, {J. A.} and F. Ranjard and G. Redlinger and L. Rolandi and A. Roth and J. Rothberg and T. Ruan and M. Saich and D. Schlatter and M. Schmelling and F. Sefkow and W. Tejessy and H. Wachsmuth and W. Wiedenmann and T. Wildish and W. Witzeling and J. Wotschack and Z. Ajaltouni and F. Badaud and M. Bardadin-Otwinowska and Bencheikh, {A. M.} and {El Fellous}, R. and A. Falvard and P. Gay and C. Guicheney and P. Henrard and J. Jousset and B. Michel and Montret, {J. C.} and D. Pallin and P. Perret and B. Pietrzyk and J. Proriol and F. Prulhi{\`e}re and G. Stimpfl and T. Fearnley and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and R. M{\o}llerud and Nilsson, {B. S.} and I. Efthymiopoulos and A. Kyriakis and E. Simopoulou and A. Vayaki and K. Zachariadou and J. Badier and A. Blondel and G. Bonneaud and Brient, {J. C.} and G. Fouque and A. Gamess and S. Orteu and A. Rosowsky and A. Roug{\'e} and M. Rumpf and R. Tanaka and H. Videau and Candlin, {D. J.} and Parsons, {M. I.} and E. Veitch and L. Moneta and G. Parrini and M. Corden and C. Georgiopoulos and M. Ikeda and J. Lannutti and D. Levinthal and M. Mermikides and L. Sawyer and S. Wasserbaech and A. Antonelli and R. Baldini and G. Bencivenni and G. Bologna and P. Campana and G. Capon and F. Cerutti and V. Chiarella and B. D'Ettorre-Piazzoli and G. Felici and P. Laurelli and G. Mannocchi and F. Murtas and Murtas, {G. P.} and L. Passalacqua and M. Pepe-Altarelli and P. Picchi and B. Altoon and O. Boyle and P. Colrain and {ten Have}, I. and Lynch, {J. G.} and W. Maitland and Morton, {W. T.} and C. Raine and Scarr, {J. M.} and K. Smith and Thompson, {A. S.} and Turnbull, {R. M.} and B. Brandl and O. Braun and R. Geiges and C. Geweniger and P. Hanke and V. Hepp and Kluge, {E. E.} and Y. Maumary and A. Putzer and B. Rensch and A. Stahl and K. Tittel and M. Wunsch and Belk, {A. T.} and R. Beuselinck and Binnie, {D. M.} and W. Cameron and M. Cattaneo and Colling, {D. J.} and Dornan, {P. J.} and S. Dugeay and Greene, {A. M.} and Hassard, {J. F.} and Lieske, {N. M.} and Patton, {S. J.} and Payne, {D. G.} and Phillips, {M. J.} and Sedgbeer, {J. K.} and Tomalin, {I. R.} and Wright, {A. G.} and P. Girtler and D. Kuhn and G. Rudolph and Bowdery, {C. K.} and Brodbeck, {T. J.} and Finch, {A. J.} and F. Foster and G. Hughes and D. Jackson and Keemer, {N. R.} and M. Nuttall and A. Patel and T. Sloan and Snow, {S. W.} and Whelan, {E. P.} and T. Barczewski and K. Kleinknecht and J. Raab and B. Renk and S. Roehn and Sander, {H. G.} and H. Schmidt and F. Steeg and Walther, {S. M.} and B. Wolf and Aubert, {J. J.} and C. Benchouk and V. Bernard and A. Bonissent and J. Carr and P. Coyle and J. Drinkard and F. Etienne and S. Papalexiou and P. Payre and Z. Qian and D. Rousseau and P. Schwemling and M. Talby and S. Adlung and C. Bauer and W. Blum and D. Brown and G. Cowan and B. Dehning and H. Dietl and F. Dydal and M. Fernandez-Bosman and M. Frank and Halley, {A. W.} and J. Lauber and G. L{\"u}tjens and G. Lutz and W. M{\"a}nner and R. Richter and J. Schr{\"o}der and Schwarz, {A. S.} and R. Settles and H. Seywerd and U. Stierlin and U. Stiegler and Denis, {R. St} and M. Takashima and J. Thomas and G. Wolf and V. Bertin and J. Boucrot and O. Callot and X. Chen and A. Cordier and M. Davier and Grivaz, {J. F.} and Ph Heusse and P. Janot and Kim, {D. W.} and {Le Diberder}, F. and J. Lefran{\cc}ois and Lutz, {A. M.} and Schune, {M. H.} and Veillet, {J. J.} and I. Videau and Z. Zhang and F. Zomer and D. Abbaneo and Amendolia, {S. R.} and G. Bagliesi and G. Batignani and L. Bosisio and U. Bottigli and C. Bradaschia and M. Carpinelli and Ciocci, {M. A.} and R. Dell'Orso and I. Ferrante and F. Fidecaro and L. Fo{\`a} and E. Focardi and F. Forti and A. Giassi and Giorgi, {M. A.} and F. Ligabue and Mannelli, {E. B.} and Marrocchesi, {P. S.} and A. Messineo and F. Palla and G. Rizzo and G. Sanguinetti and J. Steinberger and R. Tenchini and G. Tonelli and G. Triggiani and C. Vannini and A. Venturi and Verdini, {P. G.} and J. Walsh and Carter, {J. M.} and Green, {M. G.} and March, {P. V.} and Mir, {Ll M.} and T. Medcalf and Quazi, {I. S.} and Strong, {J. A.} and West, {L. R.} and Botterill, {D. R.} and Clifft, {R. W.} and Edgecock, {T. R.} and M. Edwards and Fisher, {S. M.} and Jones, {T. J.} and Norton, {P. R.} and Salmon, {D. P.} and Thompson, {J. C.} and B. Bloch-Devaux and P. Colas and W. Kozanecki and Lemaire, {M. C.} and E. Locci and S. Loucatos and E. Monnier and P. Perez and F. Perrier and J. Rander and Renardy, {J. F.} and A. Roussarie and Schuller, {J. P.} and J. Schwindling and {Si Mohand}, D. and B. Vallage and Johnson, {R. P.} and Litke, {A. M.} and G. Taylor and J. Wear and Ashman, {J. G.} and W. Babbage and Booth, {C. N.} and C. Buttar and Carney, {R. E.} and S. Cartwright and F. Combley and F. Hatfield and P. Reeves and Thompson, {L. F.} and E. Barberio and S. Brandt and C. Grupen and L. Mirabito and U. Sch{\"a}fer and G. Ganis and G. Giannini and B. Gobbo and F. Ragusa and L. Bellantoni and D. Cinabro and Conway, {J. S.} and Cowen, {D. F.} and Z. Feng and Ferguson, {D. P.S.} and Gao, {Y. S.} and J. Grahl and Harton, {J. L.} and Jared, {R. C.} and LeClaire, {B. W.} and C. Lishka and Pan, {Y. B.} and Pater, {J. R.} and Pusztaszeri, {J. F.} and Y. Saadi and V. Sharma and M. Schmitt and Shi, {Z. H.} and Tang, {Y. H.} and Walsh, {A. M.} and Weber, {F. V.} and Whitney, {M. H.} and {Sau Lan Wu}, {Lan Wu} and X. Wu and G. Zobernig",
year = "1992",
month = "11",
day = "5",
doi = "10.1016/0370-2693(92)91654-R",
language = "English (US)",
volume = "294",
pages = "145--156",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "1",

}

Buskulic, D, Decamp, D, Goy, C, Lees, JP, Minard, MN, Mours, B, Alemany, R, Ariztizabal, F, Comas, P, Crespo, JM, Delfino, M, Fernandez, E, Gaitan, V, Garrido, L, Pacheco, A, Pascual, A, Creanza, D, de Palma, M, Farilla, A, Iaselli, G, Maggi, G, Maggi, M, Natali, S, Nuzzo, S, Quattromini, M, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Huang, X, Lin, J, Lou, J, Qiao, C, Wang, T, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhao, W, Atwood, WB, Bauerdick, LAT, Blucher, E, Bonvicini, G, Bossi, F, Boudreau, J, Burnett, TH, Drevermann, H, Forty, RW, Hagelberg, R, Harvey, J, Haywood, S, Hilgart, J, Jacobsen, R, Jost, B, Knobloch, J, Lançon, E, Lehraus, I, Lohse, T, Lusiani, A, Martinez, M, Mato, P, Mattison, T, Meinhard, H, Menary, S, Meyer, T, Minten, A, Miquel, R, Moser, HG, Nash, J, Palazzi, P, Perlas, JA, Ranjard, F, Redlinger, G, Rolandi, L, Roth, A, Rothberg, J, Ruan, T, Saich, M, Schlatter, D, Schmelling, M, Sefkow, F, Tejessy, W, Wachsmuth, H, Wiedenmann, W, Wildish, T, Witzeling, W, Wotschack, J, Ajaltouni, Z, Badaud, F, Bardadin-Otwinowska, M, Bencheikh, AM, El Fellous, R, Falvard, A, Gay, P, Guicheney, C, Henrard, P, Jousset, J, Michel, B, Montret, JC, Pallin, D, Perret, P, Pietrzyk, B, Proriol, J, Prulhière, F, Stimpfl, G, Fearnley, T, Hansen, JD, Hansen, JR, Hansen, PH, Møllerud, R, Nilsson, BS, Efthymiopoulos, I, Kyriakis, A, Simopoulou, E, Vayaki, A, Zachariadou, K, Badier, J, Blondel, A, Bonneaud, G, Brient, JC, Fouque, G, Gamess, A, Orteu, S, Rosowsky, A, Rougé, A, Rumpf, M, Tanaka, R, Videau, H, Candlin, DJ, Parsons, MI, Veitch, E, Moneta, L, Parrini, G, Corden, M, Georgiopoulos, C, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Wasserbaech, S, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Campana, P, Capon, G, Cerutti, F, Chiarella, V, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, GP, Passalacqua, L, Pepe-Altarelli, M, Picchi, P, Altoon, B, Boyle, O, Colrain, P, ten Have, I, Lynch, JG, Maitland, W, Morton, WT, Raine, C, Scarr, JM, Smith, K, Thompson, AS, Turnbull, RM, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, EE, Maumary, Y, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, AT, Beuselinck, R, Binnie, DM, Cameron, W, Cattaneo, M, Colling, DJ, Dornan, PJ, Dugeay, S, Greene, AM, Hassard, JF, Lieske, NM, Patton, SJ, Payne, DG, Phillips, MJ, Sedgbeer, JK, Tomalin, IR, Wright, AG, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, CK, Brodbeck, TJ, Finch, AJ, Foster, F, Hughes, G, Jackson, D, Keemer, NR, Nuttall, M, Patel, A, Sloan, T, Snow, SW, Whelan, EP, Barczewski, T, Kleinknecht, K, Raab, J, Renk, B, Roehn, S, Sander, HG, Schmidt, H, Steeg, F, Walther, SM, Wolf, B, Aubert, JJ, Benchouk, C, Bernard, V, Bonissent, A, Carr, J, Coyle, P, Drinkard, J, Etienne, F, Papalexiou, S, Payre, P, Qian, Z, Rousseau, D, Schwemling, P, Talby, M, Adlung, S, Bauer, C, Blum, W, Brown, D, Cowan, G, Dehning, B, Dietl, H, Dydal, F, Fernandez-Bosman, M, Frank, M, Halley, AW, Lauber, J, Lütjens, G, Lutz, G, Männer, W, Richter, R, Schröder, J, Schwarz, AS, Settles, R, Seywerd, H, Stierlin, U, Stiegler, U, Denis, RS, Takashima, M, Thomas, J, Wolf, G, Bertin, V, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Grivaz, JF, Heusse, P, Janot, P, Kim, DW, Le Diberder, F, Lefrançois, J, Lutz, AM, Schune, MH, Veillet, JJ, Videau, I, Zhang, Z, Zomer, F, Abbaneo, D, Amendolia, SR, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Carpinelli, M, Ciocci, MA, Dell'Orso, R, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, MA, Ligabue, F, Mannelli, EB, Marrocchesi, PS, Messineo, A, Palla, F, Rizzo, G, Sanguinetti, G, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Vannini, C, Venturi, A, Verdini, PG, Walsh, J, Carter, JM, Green, MG, March, PV, Mir, LM, Medcalf, T, Quazi, IS, Strong, JA, West, LR, Botterill, DR, Clifft, RW, Edgecock, TR, Edwards, M, Fisher, SM, Jones, TJ, Norton, PR, Salmon, DP, Thompson, JC, Bloch-Devaux, B, Colas, P, Kozanecki, W, Lemaire, MC, Locci, E, Loucatos, S, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, JF, Roussarie, A, Schuller, JP, Schwindling, J, Si Mohand, D, Vallage, B, Johnson, RP, Litke, AM, Taylor, G, Wear, J, Ashman, JG, Babbage, W, Booth, CN, Buttar, C, Carney, RE, Cartwright, S, Combley, F, Hatfield, F, Reeves, P, Thompson, LF, Barberio, E, Brandt, S, Grupen, C, Mirabito, L, Schäfer, U, Ganis, G, Giannini, G, Gobbo, B, Ragusa, F, Bellantoni, L, Cinabro, D, Conway, JS, Cowen, DF, Feng, Z, Ferguson, DPS, Gao, YS, Grahl, J, Harton, JL, Jared, RC, LeClaire, BW, Lishka, C, Pan, YB, Pater, JR, Pusztaszeri, JF, Saadi, Y, Sharma, V, Schmitt, M, Shi, ZH, Tang, YH, Walsh, AM, Weber, FV, Whitney, MH, Sau Lan Wu, LW, Wu, X & Zobernig, G 1992, 'Observation of the semileptonic decays of BS and Λb hadrons at LEP', Physics Letters B, vol. 294, no. 1, pp. 145-156. https://doi.org/10.1016/0370-2693(92)91654-R

Observation of the semileptonic decays of BS and Λb hadrons at LEP. / Buskulic, D.; Decamp, D.; Goy, C.; Lees, J. P.; Minard, M. N.; Mours, B.; Alemany, R.; Ariztizabal, F.; Comas, P.; Crespo, J. M.; Delfino, M.; Fernandez, E.; Gaitan, V.; Garrido, Ll; Pacheco, A.; Pascual, A.; Creanza, D.; de Palma, M.; Farilla, A.; Iaselli, G.; Maggi, G.; Maggi, M.; Natali, S.; Nuzzo, S.; Quattromini, M.; Ranieri, A.; Raso, G.; Romano, F.; Ruggieri, F.; Selvaggi, G.; Silvestris, L.; Tempesta, P.; Zito, G.; Gao, Y.; Hu, H.; Huang, D.; Huang, X.; Lin, J.; Lou, J.; Qiao, C.; Wang, T.; Xie, Y.; Xu, D.; Xu, R.; Zhang, J.; Zhao, W.; Atwood, W. B.; Bauerdick, L. A.T.; Blucher, E.; Bonvicini, G.; Bossi, F.; Boudreau, J.; Burnett, T. H.; Drevermann, H.; Forty, R. W.; Hagelberg, R.; Harvey, J.; Haywood, S.; Hilgart, J.; Jacobsen, R.; Jost, B.; Knobloch, J.; Lançon, E.; Lehraus, I.; Lohse, T.; Lusiani, A.; Martinez, M.; Mato, P.; Mattison, T.; Meinhard, H.; Menary, S.; Meyer, T.; Minten, A.; Miquel, R.; Moser, H. G.; Nash, J.; Palazzi, P.; Perlas, J. A.; Ranjard, F.; Redlinger, G.; Rolandi, L.; Roth, A.; Rothberg, J.; Ruan, T.; Saich, M.; Schlatter, D.; Schmelling, M.; Sefkow, F.; Tejessy, W.; Wachsmuth, H.; Wiedenmann, W.; Wildish, T.; Witzeling, W.; Wotschack, J.; Ajaltouni, Z.; Badaud, F.; Bardadin-Otwinowska, M.; Bencheikh, A. M.; El Fellous, R.; Falvard, A.; Gay, P.; Guicheney, C.; Henrard, P.; Jousset, J.; Michel, B.; Montret, J. C.; Pallin, D.; Perret, P.; Pietrzyk, B.; Proriol, J.; Prulhière, F.; Stimpfl, G.; Fearnley, T.; Hansen, J. D.; Hansen, J. R.; Hansen, P. H.; Møllerud, R.; Nilsson, B. S.; Efthymiopoulos, I.; Kyriakis, A.; Simopoulou, E.; Vayaki, A.; Zachariadou, K.; Badier, J.; Blondel, A.; Bonneaud, G.; Brient, J. C.; Fouque, G.; Gamess, A.; Orteu, S.; Rosowsky, A.; Rougé, A.; Rumpf, M.; Tanaka, R.; Videau, H.; Candlin, D. J.; Parsons, M. I.; Veitch, E.; Moneta, L.; Parrini, G.; Corden, M.; Georgiopoulos, C.; Ikeda, M.; Lannutti, J.; Levinthal, D.; Mermikides, M.; Sawyer, L.; Wasserbaech, S.; Antonelli, A.; Baldini, R.; Bencivenni, G.; Bologna, G.; Campana, P.; Capon, G.; Cerutti, F.; Chiarella, V.; D'Ettorre-Piazzoli, B.; Felici, G.; Laurelli, P.; Mannocchi, G.; Murtas, F.; Murtas, G. P.; Passalacqua, L.; Pepe-Altarelli, M.; Picchi, P.; Altoon, B.; Boyle, O.; Colrain, P.; ten Have, I.; Lynch, J. G.; Maitland, W.; Morton, W. T.; Raine, C.; Scarr, J. M.; Smith, K.; Thompson, A. S.; Turnbull, R. M.; Brandl, B.; Braun, O.; Geiges, R.; Geweniger, C.; Hanke, P.; Hepp, V.; Kluge, E. E.; Maumary, Y.; Putzer, A.; Rensch, B.; Stahl, A.; Tittel, K.; Wunsch, M.; Belk, A. T.; Beuselinck, R.; Binnie, D. M.; Cameron, W.; Cattaneo, M.; Colling, D. J.; Dornan, P. J.; Dugeay, S.; Greene, A. M.; Hassard, J. F.; Lieske, N. M.; Patton, S. J.; Payne, D. G.; Phillips, M. J.; Sedgbeer, J. K.; Tomalin, I. R.; Wright, A. G.; Girtler, P.; Kuhn, D.; Rudolph, G.; Bowdery, C. K.; Brodbeck, T. J.; Finch, A. J.; Foster, F.; Hughes, G.; Jackson, D.; Keemer, N. R.; Nuttall, M.; Patel, A.; Sloan, T.; Snow, S. W.; Whelan, E. P.; Barczewski, T.; Kleinknecht, K.; Raab, J.; Renk, B.; Roehn, S.; Sander, H. G.; Schmidt, H.; Steeg, F.; Walther, S. M.; Wolf, B.; Aubert, J. J.; Benchouk, C.; Bernard, V.; Bonissent, A.; Carr, J.; Coyle, P.; Drinkard, J.; Etienne, F.; Papalexiou, S.; Payre, P.; Qian, Z.; Rousseau, D.; Schwemling, P.; Talby, M.; Adlung, S.; Bauer, C.; Blum, W.; Brown, D.; Cowan, G.; Dehning, B.; Dietl, H.; Dydal, F.; Fernandez-Bosman, M.; Frank, M.; Halley, A. W.; Lauber, J.; Lütjens, G.; Lutz, G.; Männer, W.; Richter, R.; Schröder, J.; Schwarz, A. S.; Settles, R.; Seywerd, H.; Stierlin, U.; Stiegler, U.; Denis, R. St; Takashima, M.; Thomas, J.; Wolf, G.; Bertin, V.; Boucrot, J.; Callot, O.; Chen, X.; Cordier, A.; Davier, M.; Grivaz, J. F.; Heusse, Ph; Janot, P.; Kim, D. W.; Le Diberder, F.; Lefrançois, J.; Lutz, A. M.; Schune, M. H.; Veillet, J. J.; Videau, I.; Zhang, Z.; Zomer, F.; Abbaneo, D.; Amendolia, S. R.; Bagliesi, G.; Batignani, G.; Bosisio, L.; Bottigli, U.; Bradaschia, C.; Carpinelli, M.; Ciocci, M. A.; Dell'Orso, R.; Ferrante, I.; Fidecaro, F.; Foà, L.; Focardi, E.; Forti, F.; Giassi, A.; Giorgi, M. A.; Ligabue, F.; Mannelli, E. B.; Marrocchesi, P. S.; Messineo, A.; Palla, F.; Rizzo, G.; Sanguinetti, G.; Steinberger, J.; Tenchini, R.; Tonelli, G.; Triggiani, G.; Vannini, C.; Venturi, A.; Verdini, P. G.; Walsh, J.; Carter, J. M.; Green, M. G.; March, P. V.; Mir, Ll M.; Medcalf, T.; Quazi, I. S.; Strong, J. A.; West, L. R.; Botterill, D. R.; Clifft, R. W.; Edgecock, T. R.; Edwards, M.; Fisher, S. M.; Jones, T. J.; Norton, P. R.; Salmon, D. P.; Thompson, J. C.; Bloch-Devaux, B.; Colas, P.; Kozanecki, W.; Lemaire, M. C.; Locci, E.; Loucatos, S.; Monnier, E.; Perez, P.; Perrier, F.; Rander, J.; Renardy, J. F.; Roussarie, A.; Schuller, J. P.; Schwindling, J.; Si Mohand, D.; Vallage, B.; Johnson, R. P.; Litke, A. M.; Taylor, G.; Wear, J.; Ashman, J. G.; Babbage, W.; Booth, C. N.; Buttar, C.; Carney, R. E.; Cartwright, S.; Combley, F.; Hatfield, F.; Reeves, P.; Thompson, L. F.; Barberio, E.; Brandt, S.; Grupen, C.; Mirabito, L.; Schäfer, U.; Ganis, G.; Giannini, G.; Gobbo, B.; Ragusa, F.; Bellantoni, L.; Cinabro, D.; Conway, J. S.; Cowen, D. F.; Feng, Z.; Ferguson, D. P.S.; Gao, Y. S.; Grahl, J.; Harton, J. L.; Jared, R. C.; LeClaire, B. W.; Lishka, C.; Pan, Y. B.; Pater, J. R.; Pusztaszeri, J. F.; Saadi, Y.; Sharma, V.; Schmitt, M.; Shi, Z. H.; Tang, Y. H.; Walsh, A. M.; Weber, F. V.; Whitney, M. H.; Sau Lan Wu, Lan Wu; Wu, X.; Zobernig, G.

In: Physics Letters B, Vol. 294, No. 1, 05.11.1992, p. 145-156.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Observation of the semileptonic decays of BS and Λb hadrons at LEP

AU - Buskulic, D.

AU - Decamp, D.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Mours, B.

AU - Alemany, R.

AU - Ariztizabal, F.

AU - Comas, P.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Gaitan, V.

AU - Garrido, Ll

AU - Pacheco, A.

AU - Pascual, A.

AU - Creanza, D.

AU - de Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Maggi, M.

AU - Natali, S.

AU - Nuzzo, S.

AU - Quattromini, M.

AU - Ranieri, A.

AU - Raso, G.

AU - Romano, F.

AU - Ruggieri, F.

AU - Selvaggi, G.

AU - Silvestris, L.

AU - Tempesta, P.

AU - Zito, G.

AU - Gao, Y.

AU - Hu, H.

AU - Huang, D.

AU - Huang, X.

AU - Lin, J.

AU - Lou, J.

AU - Qiao, C.

AU - Wang, T.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhao, W.

AU - Atwood, W. B.

AU - Bauerdick, L. A.T.

AU - Blucher, E.

AU - Bonvicini, G.

AU - Bossi, F.

AU - Boudreau, J.

AU - Burnett, T. H.

AU - Drevermann, H.

AU - Forty, R. W.

AU - Hagelberg, R.

AU - Harvey, J.

AU - Haywood, S.

AU - Hilgart, J.

AU - Jacobsen, R.

AU - Jost, B.

AU - Knobloch, J.

AU - Lançon, E.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lusiani, A.

AU - Martinez, M.

AU - Mato, P.

AU - Mattison, T.

AU - Meinhard, H.

AU - Menary, S.

AU - Meyer, T.

AU - Minten, A.

AU - Miquel, R.

AU - Moser, H. G.

AU - Nash, J.

AU - Palazzi, P.

AU - Perlas, J. A.

AU - Ranjard, F.

AU - Redlinger, G.

AU - Rolandi, L.

AU - Roth, A.

AU - Rothberg, J.

AU - Ruan, T.

AU - Saich, M.

AU - Schlatter, D.

AU - Schmelling, M.

AU - Sefkow, F.

AU - Tejessy, W.

AU - Wachsmuth, H.

AU - Wiedenmann, W.

AU - Wildish, T.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Badaud, F.

AU - Bardadin-Otwinowska, M.

AU - Bencheikh, A. M.

AU - El Fellous, R.

AU - Falvard, A.

AU - Gay, P.

AU - Guicheney, C.

AU - Henrard, P.

AU - Jousset, J.

AU - Michel, B.

AU - Montret, J. C.

AU - Pallin, D.

AU - Perret, P.

AU - Pietrzyk, B.

AU - Proriol, J.

AU - Prulhière, F.

AU - Stimpfl, G.

AU - Fearnley, T.

AU - Hansen, J. D.

AU - Hansen, J. R.

AU - Hansen, P. H.

AU - Møllerud, R.

AU - Nilsson, B. S.

AU - Efthymiopoulos, I.

AU - Kyriakis, A.

AU - Simopoulou, E.

AU - Vayaki, A.

AU - Zachariadou, K.

AU - Badier, J.

AU - Blondel, A.

AU - Bonneaud, G.

AU - Brient, J. C.

AU - Fouque, G.

AU - Gamess, A.

AU - Orteu, S.

AU - Rosowsky, A.

AU - Rougé, A.

AU - Rumpf, M.

AU - Tanaka, R.

AU - Videau, H.

AU - Candlin, D. J.

AU - Parsons, M. I.

AU - Veitch, E.

AU - Moneta, L.

AU - Parrini, G.

AU - Corden, M.

AU - Georgiopoulos, C.

AU - Ikeda, M.

AU - Lannutti, J.

AU - Levinthal, D.

AU - Mermikides, M.

AU - Sawyer, L.

AU - Wasserbaech, S.

AU - Antonelli, A.

AU - Baldini, R.

AU - Bencivenni, G.

AU - Bologna, G.

AU - Campana, P.

AU - Capon, G.

AU - Cerutti, F.

AU - Chiarella, V.

AU - D'Ettorre-Piazzoli, B.

AU - Felici, G.

AU - Laurelli, P.

AU - Mannocchi, G.

AU - Murtas, F.

AU - Murtas, G. P.

AU - Passalacqua, L.

AU - Pepe-Altarelli, M.

AU - Picchi, P.

AU - Altoon, B.

AU - Boyle, O.

AU - Colrain, P.

AU - ten Have, I.

AU - Lynch, J. G.

AU - Maitland, W.

AU - Morton, W. T.

AU - Raine, C.

AU - Scarr, J. M.

AU - Smith, K.

AU - Thompson, A. S.

AU - Turnbull, R. M.

AU - Brandl, B.

AU - Braun, O.

AU - Geiges, R.

AU - Geweniger, C.

AU - Hanke, P.

AU - Hepp, V.

AU - Kluge, E. E.

AU - Maumary, Y.

AU - Putzer, A.

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PY - 1992/11/5

Y1 - 1992/11/5

N2 - In 450 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of Ds -ℓ+ and Λc +ℓ- combinations have been measured. 16.0 ± 4.3 Ds -ℓ+ combinations were observed in the Ds - → ππ- channel and 17.0 ± 4.5 combinations were observed in the Ds - → K*0K- channel. 21.0 ± 5.0 Λc +ℓ- combinations were observed, with the Λc + reconstructed in the decay mode Λc + → pK-π+. These events provide evidence for the decays Bs → Ds -Xℓ+ν and Λb → Λc +Xℓ-ν. Assuming that the Bs and Λb semileptonic decays are dominantly three-body, these observed yields, after background subtraction, translate into the following product branching ratios: Br(b → Bs)Br(Bs → Ds -Xℓ+ν) = 0.040±0.011 -0.012 +0.010, Br(b → Λb)Br(Λb → Λc +Xℓ-ν) = 0.030±0.007±0.009.

AB - In 450 000 hadronic Z decays recorded with the ALEPH detector at LEP, the yields of Ds -ℓ+ and Λc +ℓ- combinations have been measured. 16.0 ± 4.3 Ds -ℓ+ combinations were observed in the Ds - → ππ- channel and 17.0 ± 4.5 combinations were observed in the Ds - → K*0K- channel. 21.0 ± 5.0 Λc +ℓ- combinations were observed, with the Λc + reconstructed in the decay mode Λc + → pK-π+. These events provide evidence for the decays Bs → Ds -Xℓ+ν and Λb → Λc +Xℓ-ν. Assuming that the Bs and Λb semileptonic decays are dominantly three-body, these observed yields, after background subtraction, translate into the following product branching ratios: Br(b → Bs)Br(Bs → Ds -Xℓ+ν) = 0.040±0.011 -0.012 +0.010, Br(b → Λb)Br(Λb → Λc +Xℓ-ν) = 0.030±0.007±0.009.

UR - http://www.scopus.com/inward/record.url?scp=0010825114&partnerID=8YFLogxK

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U2 - 10.1016/0370-2693(92)91654-R

DO - 10.1016/0370-2693(92)91654-R

M3 - Article

AN - SCOPUS:0010825114

VL - 294

SP - 145

EP - 156

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

SN - 0370-2693

IS - 1

ER -

Buskulic D, Decamp D, Goy C, Lees JP, Minard MN, Mours B et al. Observation of the semileptonic decays of BS and Λb hadrons at LEP. Physics Letters B. 1992 Nov 5;294(1):145-156. https://doi.org/10.1016/0370-2693(92)91654-R