Search for decays of the Z0 into a photon and a pseudoscalar meson

D. Decamp, B. Deschizeaux, C. Goy, J. P. Lees, M. N. Minard, J. M. Crespo, M. Delfino, E. Fernandez, M. Martinez, R. Miquel, Ll M. Mir, S. Orteu, A. Pacheco, J. A. Perlas, E. Tubau, M. G. Catanesi, M. De Palma, A. Farilla, G. Iaselli, G. MaggiS. Natali, S. Nuzzo, A. Ranieri, G. Raso, F. Romano, F. Ruggieri, G. Selvaggi, L. Silvestris, P. Tempesta, G. Zito, Y. Gao, H. Hu, D. Huang, S. Jin, J. Lin, T. Ruan, T. Wang, W. Wu, Y. Xie, D. Xu, R. Xu, J. Zhang, Z. Zhang, W. Zhao, H. Albrecht, W. B. Atwood, F. Bird, E. Blucher, T. H. Burnett, T. Charity, H. Drevermann, Ll Garrido, C. Grab, R. Hagelberg, S. Haywood, B. Jost, M. Kaseman, G. Kellner, J. Knobloch, A. Lacourt, I. Lehraus, T. Lohse, D. Lüke, A. Marchioro, P. Mato, J. May, A. Minten, A. Miotto, P. Palazzi, M. Pepe-Altarelli, F. Ranjard, A. Roth, J. Rothberg, H. Rotscheidt, W. Von Rüden, R. St.Denis, D. Schlatter, M. Takashima, M. Talby, H. Taureg, W. Tejessy, H. Wachsmuth, S. Wheeler, W. Wiedenmann, W. Witzeling, J. Wotschack, Z. Ajaltouni, M. Bardadin-Otwinowska, A. Falvard, P. Gay, P. Henrard, J. Jousset, B. Michel, J. C. Montret, D. Pallin, P. Perret, J. Proriol, F. Prulhière, J. D. Hansen, J. R. Hansen, P. H. Hansen, R. Møllerud, G. Petersen, E. Simopoulou, A. Vayaki, J. Badier, A. Blondel, G. Bonneaud, J. Bourotte, F. Braems, J. C. Brient, M. A. Ciocci, G. Fouque, R. Guirlet, A. Rougé, M. Rumpf, R. Tanaka, H. Videau, I. Videau, D. J. Candlin, A. Conti, G. Parrini, M. Corden, C. Georgiopoulos, J. H. Goldman, M. Ikeda, J. Lannutti, D. Levinthal, M. Mermikides, L. Sawyer, G. Stimpfl, A. Antonelli, R. Baldini, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. De Ninno, B. D'Ettorre-Piazzoli, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G. P. Murtas, G. Nicoletti, P. Picchi, P. Zografou, B. Altoon, O. Boyle, A. W. Halley, I. Ten Have, J. L. Hearns, J. G. Lynch, W. T. Morton, C. Raine, J. M. Scarr, K. Smith, A. S. Thompson, B. Brandl, O. Braun, R. Geiges, C. Geweniger, P. Hanke, V. Hepp, E. E. Kluge, Y. Maumary, M. Panter, A. Putzer, B. Rensch, A. Stahl, K. Tittel, M. Wunsch, A. T. Belk, R. Beuselinck, D. M. Binnie, W. Cameron, M. Cattaneo, P. J. Dornan, S. Dugeay, R. W. Forty, A. M. Greene, J. F. Hassard, S. J. Patton, J. K. Sedgbeer, G. Taylor, 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, N. R. Keemer, M. Nuttall, B. S. Rowlingson, T. Sloan, S. W. Snow, T. Barczewski, L. A.T. Bauerdick, K. Kleinknecht, B. Renk, S. Roehn, H. G. Sander, M. Schmelling, F. Steeg, J. P. Albanese, J. J. Aubert, C. Benchouk, A. Bonissent, D. Courvoisier, F. Etienne, E. Matsinos, S. Papalexiou, P. Payre, B. Pietrzyk, Z. Qian, W. Blum, P. Cattaneo, G. Cowan, B. Dehning, H. Dietl, M. Fernandez-Bosman, D. Hauff, A. Jahn, E. Lange, G. Lütjens, G. Lutz, W. Männer, H. G. Moser, Y. Pan, R. Richter, A. S. Schwarz, R. Settles, U. Stiegler, U. Stierlin, J. Thomas, G. Waltermann, V. Bertin, G. De Bouard, J. Boucrot, O. Callot, X. Chen, A. Cordier, M. Davier, G. Ganis, J. F. Grivaz, Ph Heusse, P. Janot, V. Journé, D. W. Kim, J. Lefrançois, A. M. Lutz, J. J. Veillet, F. Zomer, S. R. Amendolia, G. Bagliesi, G. Batignani, L. Bosisio, U. Bottigli, C. Bradaschia, I. Ferrante, F. Fidecaro, L. Foà, E. Focardi, F. Forti, A. Giassi, M. A. Giorgi, F. Ligabue, A. Lusiani, E. B. Mannelli, P. S. Marrocchesi, A. Messineo, F. Palla, G. Sanguinetti, S. Scapellato, J. Steinberger, R. Tenchini, G. Tonelli, G. Triggiani, J. M. Carter, M. G. Green, P. V. March, T. Medcalf, M. R. Saich, J. A. Strong, R. M. Thomas, T. Wildish, D. R. Botterill, R. W. Clifft, T. R. Edgecock, M. Edwards, S. M. Fisher, J. Harvey, T. J. Jones, P. R. Norton, D. P. Salmon, J. C. Thompson, B. Bloch-Devaux, P. Colas, C. Klopfenstein, E. Lançon, E. Locci, S. Loucatos, L. Mirabito, E. Monnier, P. Perez, F. Perrier, J. Rander, J. F. Renardy, A. Roussarie, J. P. Schuller, J. G. Ashman, C. N. Booth, F. Combley, M. Dinsdale, J. Martin, D. Parker, L. F. Thompson, S. Brandt, H. Burkhardt, C. Grupen, H. Meinhard, E. Neugebauer, U. Schäfer, H. Seywerd, B. Gobbo, F. Liello, E. Milotti, F. Ragusa, L. Rolandi, L. Bellantoni, J. F. Boudreau, D. Cinabro, J. S. Conway, D. F. Cowen, Z. Feng, J. L. Harton, J. Hilgart, R. C. Jared, R. P. Johnson, B. W. Leclaire, Y. B. Pan, T. Parker, J. R. Pater, Y. Saadi, V. Sharma, J. A. Wear, F. V. Weber, Sau Lan Wu, S. T. Xue, G. Zobernig

Research output: Contribution to journalArticle

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Abstract

A search is reported for decays of the Z0 into π0γ, ηγ and η′ (958)γ in e+e- collisions using data collected during a scan around the Z0 mass. In order to search for π0γ final states, in which the two photons from the π0 decay are unresolved, the production of pairs of high-energy electromagnetic clusters is studied. The data are compared with the expectations from the pure QED process e+e- → γγ, and a 95% confidence level upper limit on the branching ratio of the Z0 into π0γ of 4.9 × 10-4 is derived. For η′γ, the decay modes of the mesons that contain two charged particles are largely free from QED background. These modes are used to place upper limits of 4.6 × 10-4 and 2.2 × 10-4 on the corresponding branching ratios of the Z0.

Original languageEnglish (US)
Pages (from-to)635-643
Number of pages9
JournalPhysics Letters B
Volume241
Issue number4
DOIs
StatePublished - May 24 1990

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mesons
photons
decay
confidence
charged particles
electromagnetism
collisions
energy

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Decamp, D., Deschizeaux, B., Goy, C., Lees, J. P., Minard, M. N., Crespo, J. M., ... Zobernig, G. (1990). Search for decays of the Z0 into a photon and a pseudoscalar meson. Physics Letters B, 241(4), 635-643. https://doi.org/10.1016/0370-2693(90)91883-D
Decamp, D. ; Deschizeaux, B. ; Goy, C. ; Lees, J. P. ; Minard, M. N. ; Crespo, J. M. ; Delfino, M. ; Fernandez, E. ; Martinez, M. ; Miquel, R. ; Mir, Ll M. ; Orteu, S. ; Pacheco, A. ; Perlas, J. A. ; Tubau, E. ; Catanesi, M. G. ; De Palma, M. ; Farilla, A. ; Iaselli, G. ; Maggi, G. ; Natali, S. ; Nuzzo, S. ; Ranieri, A. ; Raso, G. ; Romano, F. ; Ruggieri, F. ; Selvaggi, G. ; Silvestris, L. ; Tempesta, P. ; Zito, G. ; Gao, Y. ; Hu, H. ; Huang, D. ; Jin, S. ; Lin, J. ; Ruan, T. ; Wang, T. ; Wu, W. ; Xie, Y. ; Xu, D. ; Xu, R. ; Zhang, J. ; Zhang, Z. ; Zhao, W. ; Albrecht, H. ; Atwood, W. B. ; Bird, F. ; Blucher, E. ; Burnett, T. H. ; Charity, T. ; Drevermann, H. ; Garrido, Ll ; Grab, C. ; Hagelberg, R. ; Haywood, S. ; Jost, B. ; Kaseman, M. ; Kellner, G. ; Knobloch, J. ; Lacourt, A. ; Lehraus, I. ; Lohse, T. ; Lüke, D. ; Marchioro, A. ; Mato, P. ; May, J. ; Minten, A. ; Miotto, A. ; Palazzi, P. ; Pepe-Altarelli, M. ; Ranjard, F. ; Roth, A. ; Rothberg, J. ; Rotscheidt, H. ; Von Rüden, W. ; St.Denis, R. ; Schlatter, D. ; Takashima, M. ; Talby, M. ; Taureg, H. ; Tejessy, W. ; Wachsmuth, H. ; Wheeler, S. ; Wiedenmann, W. ; Witzeling, W. ; Wotschack, J. ; Ajaltouni, Z. ; Bardadin-Otwinowska, M. ; Falvard, A. ; Gay, P. ; Henrard, P. ; Jousset, J. ; Michel, B. ; Montret, J. C. ; Pallin, D. ; Perret, P. ; Proriol, J. ; Prulhière, F. ; Hansen, J. D. ; Hansen, J. R. ; Hansen, P. H. ; Møllerud, R. ; Petersen, G. ; Simopoulou, E. ; Vayaki, A. ; Badier, J. ; Blondel, A. ; Bonneaud, G. ; Bourotte, J. ; Braems, F. ; Brient, J. C. ; Ciocci, M. A. ; Fouque, G. ; Guirlet, R. ; Rougé, A. ; Rumpf, M. ; Tanaka, R. ; Videau, H. ; Videau, I. ; Candlin, D. J. ; Conti, A. ; Parrini, G. ; Corden, M. ; Georgiopoulos, C. ; Goldman, J. H. ; Ikeda, M. ; Lannutti, J. ; Levinthal, D. ; Mermikides, M. ; Sawyer, L. ; Stimpfl, G. ; Antonelli, A. ; Baldini, R. ; Bencivenni, G. ; Bologna, G. ; Bossi, F. ; Campana, P. ; Capon, G. ; Chiarella, V. ; De Ninno, G. ; D'Ettorre-Piazzoli, B. ; Felici, G. ; Laurelli, P. ; Mannocchi, G. ; Murtas, F. ; Murtas, G. P. ; Nicoletti, G. ; Picchi, P. ; Zografou, P. ; Altoon, B. ; Boyle, O. ; Halley, A. W. ; Ten Have, I. ; Hearns, J. L. ; Lynch, J. G. ; Morton, W. T. ; Raine, C. ; Scarr, J. M. ; Smith, K. ; Thompson, A. S. ; Brandl, B. ; Braun, O. ; Geiges, R. ; Geweniger, C. ; Hanke, P. ; Hepp, V. ; Kluge, E. E. ; Maumary, Y. ; Panter, M. ; Putzer, A. ; Rensch, B. ; Stahl, A. ; Tittel, K. ; Wunsch, M. ; Belk, A. T. ; Beuselinck, R. ; Binnie, D. M. ; Cameron, W. ; Cattaneo, M. ; Dornan, P. J. ; Dugeay, S. ; Forty, R. W. ; Greene, A. M. ; Hassard, J. F. ; Patton, S. J. ; Sedgbeer, J. K. ; Taylor, G. ; 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. ; Keemer, N. R. ; Nuttall, M. ; Rowlingson, B. S. ; Sloan, T. ; Snow, S. W. ; Barczewski, T. ; Bauerdick, L. A.T. ; Kleinknecht, K. ; Renk, B. ; Roehn, S. ; Sander, H. G. ; Schmelling, M. ; Steeg, F. ; Albanese, J. P. ; Aubert, J. J. ; Benchouk, C. ; Bonissent, A. ; Courvoisier, D. ; Etienne, F. ; Matsinos, E. ; Papalexiou, S. ; Payre, P. ; Pietrzyk, B. ; Qian, Z. ; Blum, W. ; Cattaneo, P. ; Cowan, G. ; Dehning, B. ; Dietl, H. ; Fernandez-Bosman, M. ; Hauff, D. ; Jahn, A. ; Lange, E. ; Lütjens, G. ; Lutz, G. ; Männer, W. ; Moser, H. G. ; Pan, Y. ; Richter, R. ; Schwarz, A. S. ; Settles, R. ; Stiegler, U. ; Stierlin, U. ; Thomas, J. ; Waltermann, G. ; Bertin, V. ; De Bouard, G. ; Boucrot, J. ; Callot, O. ; Chen, X. ; Cordier, A. ; Davier, M. ; Ganis, G. ; Grivaz, J. F. ; Heusse, Ph ; Janot, P. ; Journé, V. ; Kim, D. W. ; Lefrançois, J. ; Lutz, A. M. ; Veillet, J. J. ; Zomer, F. ; Amendolia, S. R. ; Bagliesi, G. ; Batignani, G. ; Bosisio, L. ; Bottigli, U. ; Bradaschia, C. ; Ferrante, I. ; Fidecaro, F. ; Foà, L. ; Focardi, E. ; Forti, F. ; Giassi, A. ; Giorgi, M. A. ; Ligabue, F. ; Lusiani, A. ; Mannelli, E. B. ; Marrocchesi, P. S. ; Messineo, A. ; Palla, F. ; Sanguinetti, G. ; Scapellato, S. ; Steinberger, J. ; Tenchini, R. ; Tonelli, G. ; Triggiani, G. ; Carter, J. M. ; Green, M. G. ; March, P. V. ; Medcalf, T. ; Saich, M. R. ; Strong, J. A. ; Thomas, R. M. ; Wildish, T. ; Botterill, D. R. ; Clifft, R. W. ; Edgecock, T. R. ; Edwards, M. ; Fisher, S. M. ; Harvey, J. ; Jones, T. J. ; Norton, P. R. ; Salmon, D. P. ; Thompson, J. C. ; Bloch-Devaux, B. ; Colas, P. ; Klopfenstein, C. ; Lançon, E. ; Locci, E. ; Loucatos, S. ; Mirabito, L. ; Monnier, E. ; Perez, P. ; Perrier, F. ; Rander, J. ; Renardy, J. F. ; Roussarie, A. ; Schuller, J. P. ; Ashman, J. G. ; Booth, C. N. ; Combley, F. ; Dinsdale, M. ; Martin, J. ; Parker, D. ; Thompson, L. F. ; Brandt, S. ; Burkhardt, H. ; Grupen, C. ; Meinhard, H. ; Neugebauer, E. ; Schäfer, U. ; Seywerd, H. ; Gobbo, B. ; Liello, F. ; Milotti, E. ; Ragusa, F. ; Rolandi, L. ; Bellantoni, L. ; Boudreau, J. F. ; Cinabro, D. ; Conway, J. S. ; Cowen, D. F. ; Feng, Z. ; Harton, J. L. ; Hilgart, J. ; Jared, R. C. ; Johnson, R. P. ; Leclaire, B. W. ; Pan, Y. B. ; Parker, T. ; Pater, J. R. ; Saadi, Y. ; Sharma, V. ; Wear, J. A. ; Weber, F. V. ; Wu, Sau Lan ; Xue, S. T. ; Zobernig, G. / Search for decays of the Z0 into a photon and a pseudoscalar meson. In: Physics Letters B. 1990 ; Vol. 241, No. 4. pp. 635-643.
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title = "Search for decays of the Z0 into a photon and a pseudoscalar meson",
abstract = "A search is reported for decays of the Z0 into π0γ, ηγ and η′ (958)γ in e+e- collisions using data collected during a scan around the Z0 mass. In order to search for π0γ final states, in which the two photons from the π0 decay are unresolved, the production of pairs of high-energy electromagnetic clusters is studied. The data are compared with the expectations from the pure QED process e+e- → γγ, and a 95{\%} confidence level upper limit on the branching ratio of the Z0 into π0γ of 4.9 × 10-4 is derived. For η′γ, the decay modes of the mesons that contain two charged particles are largely free from QED background. These modes are used to place upper limits of 4.6 × 10-4 and 2.2 × 10-4 on the corresponding branching ratios of the Z0.",
author = "D. Decamp and B. Deschizeaux and C. Goy and Lees, {J. P.} and Minard, {M. N.} and Crespo, {J. M.} and M. Delfino and E. Fernandez and M. Martinez and R. Miquel and Mir, {Ll M.} and S. Orteu and A. Pacheco and Perlas, {J. A.} and E. Tubau and Catanesi, {M. G.} and {De Palma}, M. and A. Farilla and G. Iaselli and G. Maggi and S. Natali and S. Nuzzo 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 S. Jin and J. Lin and T. Ruan and T. Wang and W. Wu and Y. Xie and D. Xu and R. Xu and J. Zhang and Z. Zhang and W. Zhao and H. Albrecht and Atwood, {W. B.} and F. Bird and E. Blucher and Burnett, {T. H.} and T. Charity and H. Drevermann and Ll Garrido and C. Grab and R. Hagelberg and S. Haywood and B. Jost and M. Kaseman and G. Kellner and J. Knobloch and A. Lacourt and I. Lehraus and T. Lohse and D. L{\"u}ke and A. Marchioro and P. Mato and J. May and A. Minten and A. Miotto and P. Palazzi and M. Pepe-Altarelli and F. Ranjard and A. Roth and J. Rothberg and H. Rotscheidt and {Von R{\"u}den}, W. and R. St.Denis and D. Schlatter and M. Takashima and M. Talby and H. Taureg and W. Tejessy and H. Wachsmuth and S. Wheeler and W. Wiedenmann and W. Witzeling and J. Wotschack and Z. Ajaltouni and M. Bardadin-Otwinowska and A. Falvard and P. Gay and P. Henrard and J. Jousset and B. Michel and Montret, {J. C.} and D. Pallin and P. Perret and J. Proriol and F. Prulhi{\`e}re and Hansen, {J. D.} and Hansen, {J. R.} and Hansen, {P. H.} and R. M{\o}llerud and G. Petersen and E. Simopoulou and A. Vayaki and J. Badier and A. Blondel and G. Bonneaud and J. Bourotte and F. Braems and Brient, {J. C.} and Ciocci, {M. A.} and G. Fouque and R. Guirlet and A. Roug{\'e} and M. Rumpf and R. Tanaka and H. Videau and I. Videau and Candlin, {D. J.} and A. Conti and G. Parrini and M. Corden and C. Georgiopoulos and Goldman, {J. H.} and M. Ikeda and J. Lannutti and D. Levinthal and M. Mermikides and L. Sawyer and G. Stimpfl and A. Antonelli and R. Baldini and G. Bencivenni and G. Bologna and F. Bossi and P. Campana and G. Capon and V. Chiarella and {De Ninno}, G. and B. D'Ettorre-Piazzoli and G. Felici and P. Laurelli and G. Mannocchi and F. Murtas and Murtas, {G. P.} and G. Nicoletti and P. Picchi and P. Zografou and B. Altoon and O. Boyle and Halley, {A. W.} and {Ten Have}, I. and Hearns, {J. L.} and Lynch, {J. G.} and Morton, {W. T.} and C. Raine and Scarr, {J. M.} and K. Smith and Thompson, {A. S.} 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 M. Panter 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 Dornan, {P. J.} and S. Dugeay and Forty, {R. W.} and Greene, {A. M.} and Hassard, {J. F.} and Patton, {S. J.} and Sedgbeer, {J. K.} and G. Taylor 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 Keemer, {N. R.} and M. Nuttall and Rowlingson, {B. S.} and T. Sloan and Snow, {S. W.} and T. Barczewski and Bauerdick, {L. A.T.} and K. Kleinknecht and B. Renk and S. Roehn and Sander, {H. G.} and M. Schmelling and F. Steeg and Albanese, {J. P.} and Aubert, {J. J.} and C. Benchouk and A. Bonissent and D. Courvoisier and F. Etienne and E. Matsinos and S. Papalexiou and P. Payre and B. Pietrzyk and Z. Qian and W. Blum and P. Cattaneo and G. Cowan and B. Dehning and H. Dietl and M. Fernandez-Bosman and D. Hauff and A. Jahn and E. Lange and G. L{\"u}tjens and G. Lutz and W. M{\"a}nner and Moser, {H. G.} and Y. Pan and R. Richter and Schwarz, {A. S.} and R. Settles and U. Stiegler and U. Stierlin and J. Thomas and G. Waltermann and V. Bertin and {De Bouard}, G. and J. Boucrot and O. Callot and X. Chen and A. Cordier and M. Davier and G. Ganis and Grivaz, {J. F.} and Ph Heusse and P. Janot and V. Journ{\'e} and Kim, {D. W.} and J. Lefran{\cc}ois and Lutz, {A. M.} and Veillet, {J. J.} and F. Zomer and Amendolia, {S. R.} and G. Bagliesi and G. Batignani and L. Bosisio and U. Bottigli and C. Bradaschia 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 A. Lusiani and Mannelli, {E. B.} and Marrocchesi, {P. S.} and A. Messineo and F. Palla and G. Sanguinetti and S. Scapellato and J. Steinberger and R. Tenchini and G. Tonelli and G. Triggiani and Carter, {J. M.} and Green, {M. G.} and March, {P. V.} and T. Medcalf and Saich, {M. R.} and Strong, {J. A.} and Thomas, {R. M.} and T. Wildish and Botterill, {D. R.} and Clifft, {R. W.} and Edgecock, {T. R.} and M. Edwards and Fisher, {S. M.} and J. Harvey and Jones, {T. J.} and Norton, {P. R.} and Salmon, {D. P.} and Thompson, {J. C.} and B. Bloch-Devaux and P. Colas and C. Klopfenstein and E. Lan{\cc}on and E. Locci and S. Loucatos and L. Mirabito and E. Monnier and P. Perez and F. Perrier and J. Rander and Renardy, {J. F.} and A. Roussarie and Schuller, {J. P.} and Ashman, {J. G.} and Booth, {C. N.} and F. Combley and M. Dinsdale and J. Martin and D. Parker and Thompson, {L. F.} and S. Brandt and H. Burkhardt and C. Grupen and H. Meinhard and E. Neugebauer and U. Sch{\"a}fer and H. Seywerd and B. Gobbo and F. Liello and E. Milotti and F. Ragusa and L. Rolandi and L. Bellantoni and Boudreau, {J. F.} and D. Cinabro and Conway, {J. S.} and Cowen, {D. F.} and Z. Feng and Harton, {J. L.} and J. Hilgart and Jared, {R. C.} and Johnson, {R. P.} and Leclaire, {B. W.} and Pan, {Y. B.} and T. Parker and Pater, {J. R.} and Y. Saadi and V. Sharma and Wear, {J. A.} and Weber, {F. V.} and Wu, {Sau Lan} and Xue, {S. T.} and G. Zobernig",
year = "1990",
month = "5",
day = "24",
doi = "10.1016/0370-2693(90)91883-D",
language = "English (US)",
volume = "241",
pages = "635--643",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier",
number = "4",

}

Decamp, D, Deschizeaux, B, Goy, C, Lees, JP, Minard, MN, Crespo, JM, Delfino, M, Fernandez, E, Martinez, M, Miquel, R, Mir, LM, Orteu, S, Pacheco, A, Perlas, JA, Tubau, E, Catanesi, MG, De Palma, M, Farilla, A, Iaselli, G, Maggi, G, Natali, S, Nuzzo, S, Ranieri, A, Raso, G, Romano, F, Ruggieri, F, Selvaggi, G, Silvestris, L, Tempesta, P, Zito, G, Gao, Y, Hu, H, Huang, D, Jin, S, Lin, J, Ruan, T, Wang, T, Wu, W, Xie, Y, Xu, D, Xu, R, Zhang, J, Zhang, Z, Zhao, W, Albrecht, H, Atwood, WB, Bird, F, Blucher, E, Burnett, TH, Charity, T, Drevermann, H, Garrido, L, Grab, C, Hagelberg, R, Haywood, S, Jost, B, Kaseman, M, Kellner, G, Knobloch, J, Lacourt, A, Lehraus, I, Lohse, T, Lüke, D, Marchioro, A, Mato, P, May, J, Minten, A, Miotto, A, Palazzi, P, Pepe-Altarelli, M, Ranjard, F, Roth, A, Rothberg, J, Rotscheidt, H, Von Rüden, W, St.Denis, R, Schlatter, D, Takashima, M, Talby, M, Taureg, H, Tejessy, W, Wachsmuth, H, Wheeler, S, Wiedenmann, W, Witzeling, W, Wotschack, J, Ajaltouni, Z, Bardadin-Otwinowska, M, Falvard, A, Gay, P, Henrard, P, Jousset, J, Michel, B, Montret, JC, Pallin, D, Perret, P, Proriol, J, Prulhière, F, Hansen, JD, Hansen, JR, Hansen, PH, Møllerud, R, Petersen, G, Simopoulou, E, Vayaki, A, Badier, J, Blondel, A, Bonneaud, G, Bourotte, J, Braems, F, Brient, JC, Ciocci, MA, Fouque, G, Guirlet, R, Rougé, A, Rumpf, M, Tanaka, R, Videau, H, Videau, I, Candlin, DJ, Conti, A, Parrini, G, Corden, M, Georgiopoulos, C, Goldman, JH, Ikeda, M, Lannutti, J, Levinthal, D, Mermikides, M, Sawyer, L, Stimpfl, G, Antonelli, A, Baldini, R, Bencivenni, G, Bologna, G, Bossi, F, Campana, P, Capon, G, Chiarella, V, De Ninno, G, D'Ettorre-Piazzoli, B, Felici, G, Laurelli, P, Mannocchi, G, Murtas, F, Murtas, GP, Nicoletti, G, Picchi, P, Zografou, P, Altoon, B, Boyle, O, Halley, AW, Ten Have, I, Hearns, JL, Lynch, JG, Morton, WT, Raine, C, Scarr, JM, Smith, K, Thompson, AS, Brandl, B, Braun, O, Geiges, R, Geweniger, C, Hanke, P, Hepp, V, Kluge, EE, Maumary, Y, Panter, M, Putzer, A, Rensch, B, Stahl, A, Tittel, K, Wunsch, M, Belk, AT, Beuselinck, R, Binnie, DM, Cameron, W, Cattaneo, M, Dornan, PJ, Dugeay, S, Forty, RW, Greene, AM, Hassard, JF, Patton, SJ, Sedgbeer, JK, Taylor, G, Tomalin, IR, Wright, AG, Girtler, P, Kuhn, D, Rudolph, G, Bowdery, CK, Brodbeck, TJ, Finch, AJ, Foster, F, Hughes, G, Keemer, NR, Nuttall, M, Rowlingson, BS, Sloan, T, Snow, SW, Barczewski, T, Bauerdick, LAT, Kleinknecht, K, Renk, B, Roehn, S, Sander, HG, Schmelling, M, Steeg, F, Albanese, JP, Aubert, JJ, Benchouk, C, Bonissent, A, Courvoisier, D, Etienne, F, Matsinos, E, Papalexiou, S, Payre, P, Pietrzyk, B, Qian, Z, Blum, W, Cattaneo, P, Cowan, G, Dehning, B, Dietl, H, Fernandez-Bosman, M, Hauff, D, Jahn, A, Lange, E, Lütjens, G, Lutz, G, Männer, W, Moser, HG, Pan, Y, Richter, R, Schwarz, AS, Settles, R, Stiegler, U, Stierlin, U, Thomas, J, Waltermann, G, Bertin, V, De Bouard, G, Boucrot, J, Callot, O, Chen, X, Cordier, A, Davier, M, Ganis, G, Grivaz, JF, Heusse, P, Janot, P, Journé, V, Kim, DW, Lefrançois, J, Lutz, AM, Veillet, JJ, Zomer, F, Amendolia, SR, Bagliesi, G, Batignani, G, Bosisio, L, Bottigli, U, Bradaschia, C, Ferrante, I, Fidecaro, F, Foà, L, Focardi, E, Forti, F, Giassi, A, Giorgi, MA, Ligabue, F, Lusiani, A, Mannelli, EB, Marrocchesi, PS, Messineo, A, Palla, F, Sanguinetti, G, Scapellato, S, Steinberger, J, Tenchini, R, Tonelli, G, Triggiani, G, Carter, JM, Green, MG, March, PV, Medcalf, T, Saich, MR, Strong, JA, Thomas, RM, Wildish, T, Botterill, DR, Clifft, RW, Edgecock, TR, Edwards, M, Fisher, SM, Harvey, J, Jones, TJ, Norton, PR, Salmon, DP, Thompson, JC, Bloch-Devaux, B, Colas, P, Klopfenstein, C, Lançon, E, Locci, E, Loucatos, S, Mirabito, L, Monnier, E, Perez, P, Perrier, F, Rander, J, Renardy, JF, Roussarie, A, Schuller, JP, Ashman, JG, Booth, CN, Combley, F, Dinsdale, M, Martin, J, Parker, D, Thompson, LF, Brandt, S, Burkhardt, H, Grupen, C, Meinhard, H, Neugebauer, E, Schäfer, U, Seywerd, H, Gobbo, B, Liello, F, Milotti, E, Ragusa, F, Rolandi, L, Bellantoni, L, Boudreau, JF, Cinabro, D, Conway, JS, Cowen, DF, Feng, Z, Harton, JL, Hilgart, J, Jared, RC, Johnson, RP, Leclaire, BW, Pan, YB, Parker, T, Pater, JR, Saadi, Y, Sharma, V, Wear, JA, Weber, FV, Wu, SL, Xue, ST & Zobernig, G 1990, 'Search for decays of the Z0 into a photon and a pseudoscalar meson', Physics Letters B, vol. 241, no. 4, pp. 635-643. https://doi.org/10.1016/0370-2693(90)91883-D

Search for decays of the Z0 into a photon and a pseudoscalar meson. / Decamp, D.; Deschizeaux, B.; Goy, C.; Lees, J. P.; Minard, M. N.; Crespo, J. M.; Delfino, M.; Fernandez, E.; Martinez, M.; Miquel, R.; Mir, Ll M.; Orteu, S.; Pacheco, A.; Perlas, J. A.; Tubau, E.; Catanesi, M. G.; De Palma, M.; Farilla, A.; Iaselli, G.; Maggi, G.; Natali, S.; Nuzzo, S.; Ranieri, A.; Raso, G.; Romano, F.; Ruggieri, F.; Selvaggi, G.; Silvestris, L.; Tempesta, P.; Zito, G.; Gao, Y.; Hu, H.; Huang, D.; Jin, S.; Lin, J.; Ruan, T.; Wang, T.; Wu, W.; Xie, Y.; Xu, D.; Xu, R.; Zhang, J.; Zhang, Z.; Zhao, W.; Albrecht, H.; Atwood, W. B.; Bird, F.; Blucher, E.; Burnett, T. H.; Charity, T.; Drevermann, H.; Garrido, Ll; Grab, C.; Hagelberg, R.; Haywood, S.; Jost, B.; Kaseman, M.; Kellner, G.; Knobloch, J.; Lacourt, A.; Lehraus, I.; Lohse, T.; Lüke, D.; Marchioro, A.; Mato, P.; May, J.; Minten, A.; Miotto, A.; Palazzi, P.; Pepe-Altarelli, M.; Ranjard, F.; Roth, A.; Rothberg, J.; Rotscheidt, H.; Von Rüden, W.; St.Denis, R.; Schlatter, D.; Takashima, M.; Talby, M.; Taureg, H.; Tejessy, W.; Wachsmuth, H.; Wheeler, S.; Wiedenmann, W.; Witzeling, W.; Wotschack, J.; Ajaltouni, Z.; Bardadin-Otwinowska, M.; Falvard, A.; Gay, P.; Henrard, P.; Jousset, J.; Michel, B.; Montret, J. C.; Pallin, D.; Perret, P.; Proriol, J.; Prulhière, F.; Hansen, J. D.; Hansen, J. R.; Hansen, P. H.; Møllerud, R.; Petersen, G.; Simopoulou, E.; Vayaki, A.; Badier, J.; Blondel, A.; Bonneaud, G.; Bourotte, J.; Braems, F.; Brient, J. C.; Ciocci, M. A.; Fouque, G.; Guirlet, R.; Rougé, A.; Rumpf, M.; Tanaka, R.; Videau, H.; Videau, I.; Candlin, D. J.; Conti, A.; Parrini, G.; Corden, M.; Georgiopoulos, C.; Goldman, J. H.; Ikeda, M.; Lannutti, J.; Levinthal, D.; Mermikides, M.; Sawyer, L.; Stimpfl, G.; Antonelli, A.; Baldini, R.; Bencivenni, G.; Bologna, G.; Bossi, F.; Campana, P.; Capon, G.; Chiarella, V.; De Ninno, G.; D'Ettorre-Piazzoli, B.; Felici, G.; Laurelli, P.; Mannocchi, G.; Murtas, F.; Murtas, G. P.; Nicoletti, G.; Picchi, P.; Zografou, P.; Altoon, B.; Boyle, O.; Halley, A. W.; Ten Have, I.; Hearns, J. L.; Lynch, J. G.; Morton, W. T.; Raine, C.; Scarr, J. M.; Smith, K.; Thompson, A. S.; Brandl, B.; Braun, O.; Geiges, R.; Geweniger, C.; Hanke, P.; Hepp, V.; Kluge, E. E.; Maumary, Y.; Panter, M.; Putzer, A.; Rensch, B.; Stahl, A.; Tittel, K.; Wunsch, M.; Belk, A. T.; Beuselinck, R.; Binnie, D. M.; Cameron, W.; Cattaneo, M.; Dornan, P. J.; Dugeay, S.; Forty, R. W.; Greene, A. M.; Hassard, J. F.; Patton, S. J.; Sedgbeer, J. K.; Taylor, G.; 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.; Keemer, N. R.; Nuttall, M.; Rowlingson, B. S.; Sloan, T.; Snow, S. W.; Barczewski, T.; Bauerdick, L. A.T.; Kleinknecht, K.; Renk, B.; Roehn, S.; Sander, H. G.; Schmelling, M.; Steeg, F.; Albanese, J. P.; Aubert, J. J.; Benchouk, C.; Bonissent, A.; Courvoisier, D.; Etienne, F.; Matsinos, E.; Papalexiou, S.; Payre, P.; Pietrzyk, B.; Qian, Z.; Blum, W.; Cattaneo, P.; Cowan, G.; Dehning, B.; Dietl, H.; Fernandez-Bosman, M.; Hauff, D.; Jahn, A.; Lange, E.; Lütjens, G.; Lutz, G.; Männer, W.; Moser, H. G.; Pan, Y.; Richter, R.; Schwarz, A. S.; Settles, R.; Stiegler, U.; Stierlin, U.; Thomas, J.; Waltermann, G.; Bertin, V.; De Bouard, G.; Boucrot, J.; Callot, O.; Chen, X.; Cordier, A.; Davier, M.; Ganis, G.; Grivaz, J. F.; Heusse, Ph; Janot, P.; Journé, V.; Kim, D. W.; Lefrançois, J.; Lutz, A. M.; Veillet, J. J.; Zomer, F.; Amendolia, S. R.; Bagliesi, G.; Batignani, G.; Bosisio, L.; Bottigli, U.; Bradaschia, C.; Ferrante, I.; Fidecaro, F.; Foà, L.; Focardi, E.; Forti, F.; Giassi, A.; Giorgi, M. A.; Ligabue, F.; Lusiani, A.; Mannelli, E. B.; Marrocchesi, P. S.; Messineo, A.; Palla, F.; Sanguinetti, G.; Scapellato, S.; Steinberger, J.; Tenchini, R.; Tonelli, G.; Triggiani, G.; Carter, J. M.; Green, M. G.; March, P. V.; Medcalf, T.; Saich, M. R.; Strong, J. A.; Thomas, R. M.; Wildish, T.; Botterill, D. R.; Clifft, R. W.; Edgecock, T. R.; Edwards, M.; Fisher, S. M.; Harvey, J.; Jones, T. J.; Norton, P. R.; Salmon, D. P.; Thompson, J. C.; Bloch-Devaux, B.; Colas, P.; Klopfenstein, C.; Lançon, E.; Locci, E.; Loucatos, S.; Mirabito, L.; Monnier, E.; Perez, P.; Perrier, F.; Rander, J.; Renardy, J. F.; Roussarie, A.; Schuller, J. P.; Ashman, J. G.; Booth, C. N.; Combley, F.; Dinsdale, M.; Martin, J.; Parker, D.; Thompson, L. F.; Brandt, S.; Burkhardt, H.; Grupen, C.; Meinhard, H.; Neugebauer, E.; Schäfer, U.; Seywerd, H.; Gobbo, B.; Liello, F.; Milotti, E.; Ragusa, F.; Rolandi, L.; Bellantoni, L.; Boudreau, J. F.; Cinabro, D.; Conway, J. S.; Cowen, D. F.; Feng, Z.; Harton, J. L.; Hilgart, J.; Jared, R. C.; Johnson, R. P.; Leclaire, B. W.; Pan, Y. B.; Parker, T.; Pater, J. R.; Saadi, Y.; Sharma, V.; Wear, J. A.; Weber, F. V.; Wu, Sau Lan; Xue, S. T.; Zobernig, G.

In: Physics Letters B, Vol. 241, No. 4, 24.05.1990, p. 635-643.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Search for decays of the Z0 into a photon and a pseudoscalar meson

AU - Decamp, D.

AU - Deschizeaux, B.

AU - Goy, C.

AU - Lees, J. P.

AU - Minard, M. N.

AU - Crespo, J. M.

AU - Delfino, M.

AU - Fernandez, E.

AU - Martinez, M.

AU - Miquel, R.

AU - Mir, Ll M.

AU - Orteu, S.

AU - Pacheco, A.

AU - Perlas, J. A.

AU - Tubau, E.

AU - Catanesi, M. G.

AU - De Palma, M.

AU - Farilla, A.

AU - Iaselli, G.

AU - Maggi, G.

AU - Natali, S.

AU - Nuzzo, S.

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 - Jin, S.

AU - Lin, J.

AU - Ruan, T.

AU - Wang, T.

AU - Wu, W.

AU - Xie, Y.

AU - Xu, D.

AU - Xu, R.

AU - Zhang, J.

AU - Zhang, Z.

AU - Zhao, W.

AU - Albrecht, H.

AU - Atwood, W. B.

AU - Bird, F.

AU - Blucher, E.

AU - Burnett, T. H.

AU - Charity, T.

AU - Drevermann, H.

AU - Garrido, Ll

AU - Grab, C.

AU - Hagelberg, R.

AU - Haywood, S.

AU - Jost, B.

AU - Kaseman, M.

AU - Kellner, G.

AU - Knobloch, J.

AU - Lacourt, A.

AU - Lehraus, I.

AU - Lohse, T.

AU - Lüke, D.

AU - Marchioro, A.

AU - Mato, P.

AU - May, J.

AU - Minten, A.

AU - Miotto, A.

AU - Palazzi, P.

AU - Pepe-Altarelli, M.

AU - Ranjard, F.

AU - Roth, A.

AU - Rothberg, J.

AU - Rotscheidt, H.

AU - Von Rüden, W.

AU - St.Denis, R.

AU - Schlatter, D.

AU - Takashima, M.

AU - Talby, M.

AU - Taureg, H.

AU - Tejessy, W.

AU - Wachsmuth, H.

AU - Wheeler, S.

AU - Wiedenmann, W.

AU - Witzeling, W.

AU - Wotschack, J.

AU - Ajaltouni, Z.

AU - Bardadin-Otwinowska, M.

AU - Falvard, A.

AU - Gay, P.

AU - Henrard, P.

AU - Jousset, J.

AU - Michel, B.

AU - Montret, J. C.

AU - Pallin, D.

AU - Perret, P.

AU - Proriol, J.

AU - Prulhière, F.

AU - Hansen, J. D.

AU - Hansen, J. R.

AU - Hansen, P. H.

AU - Møllerud, R.

AU - Petersen, G.

AU - Simopoulou, E.

AU - Vayaki, A.

AU - Badier, J.

AU - Blondel, A.

AU - Bonneaud, G.

AU - Bourotte, J.

AU - Braems, F.

AU - Brient, J. C.

AU - Ciocci, M. A.

AU - Fouque, G.

AU - Guirlet, R.

AU - Rougé, A.

AU - Rumpf, M.

AU - Tanaka, R.

AU - Videau, H.

AU - Videau, I.

AU - Candlin, D. J.

AU - Conti, A.

AU - Parrini, G.

AU - Corden, M.

AU - Georgiopoulos, C.

AU - Goldman, J. H.

AU - Ikeda, M.

AU - Lannutti, J.

AU - Levinthal, D.

AU - Mermikides, M.

AU - Sawyer, L.

AU - Stimpfl, G.

AU - Antonelli, A.

AU - Baldini, R.

AU - Bencivenni, G.

AU - Bologna, G.

AU - Bossi, F.

AU - Campana, P.

AU - Capon, G.

AU - Chiarella, V.

AU - De Ninno, G.

AU - D'Ettorre-Piazzoli, B.

AU - Felici, G.

AU - Laurelli, P.

AU - Mannocchi, G.

AU - Murtas, F.

AU - Murtas, G. P.

AU - Nicoletti, G.

AU - Picchi, P.

AU - Zografou, P.

AU - Altoon, B.

AU - Boyle, O.

AU - Halley, A. W.

AU - Ten Have, I.

AU - Hearns, J. L.

AU - Lynch, J. G.

AU - Morton, W. T.

AU - Raine, C.

AU - Scarr, J. M.

AU - Smith, K.

AU - Thompson, A. S.

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 - Panter, M.

AU - Putzer, A.

AU - Rensch, B.

AU - Stahl, A.

AU - Tittel, K.

AU - Wunsch, M.

AU - Belk, A. T.

AU - Beuselinck, R.

AU - Binnie, D. M.

AU - Cameron, W.

AU - Cattaneo, M.

AU - Dornan, P. J.

AU - Dugeay, S.

AU - Forty, R. W.

AU - Greene, A. M.

AU - Hassard, J. F.

AU - Patton, S. J.

AU - Sedgbeer, J. K.

AU - Taylor, G.

AU - Tomalin, I. R.

AU - Wright, A. G.

AU - Girtler, P.

AU - Kuhn, D.

AU - Rudolph, G.

AU - Bowdery, C. K.

AU - Brodbeck, T. J.

AU - Finch, A. J.

AU - Foster, F.

AU - Hughes, G.

AU - Keemer, N. R.

AU - Nuttall, M.

AU - Rowlingson, B. S.

AU - Sloan, T.

AU - Snow, S. W.

AU - Barczewski, T.

AU - Bauerdick, L. A.T.

AU - Kleinknecht, K.

AU - Renk, B.

AU - Roehn, S.

AU - Sander, H. G.

AU - Schmelling, M.

AU - Steeg, F.

AU - Albanese, J. P.

AU - Aubert, J. J.

AU - Benchouk, C.

AU - Bonissent, A.

AU - Courvoisier, D.

AU - Etienne, F.

AU - Matsinos, E.

AU - Papalexiou, S.

AU - Payre, P.

AU - Pietrzyk, B.

AU - Qian, Z.

AU - Blum, W.

AU - Cattaneo, P.

AU - Cowan, G.

AU - Dehning, B.

AU - Dietl, H.

AU - Fernandez-Bosman, M.

AU - Hauff, D.

AU - Jahn, A.

AU - Lange, E.

AU - Lütjens, G.

AU - Lutz, G.

AU - Männer, W.

AU - Moser, H. G.

AU - Pan, Y.

AU - Richter, R.

AU - Schwarz, A. S.

AU - Settles, R.

AU - Stiegler, U.

AU - Stierlin, U.

AU - Thomas, J.

AU - Waltermann, G.

AU - Bertin, V.

AU - De Bouard, G.

AU - Boucrot, J.

AU - Callot, O.

AU - Chen, X.

AU - Cordier, A.

AU - Davier, M.

AU - Ganis, G.

AU - Grivaz, J. F.

AU - Heusse, Ph

AU - Janot, P.

AU - Journé, V.

AU - Kim, D. W.

AU - Lefrançois, J.

AU - Lutz, A. M.

AU - Veillet, J. J.

AU - Zomer, F.

AU - Amendolia, S. R.

AU - Bagliesi, G.

AU - Batignani, G.

AU - Bosisio, L.

AU - Bottigli, U.

AU - Bradaschia, C.

AU - Ferrante, I.

AU - Fidecaro, F.

AU - Foà, L.

AU - Focardi, E.

AU - Forti, F.

AU - Giassi, A.

AU - Giorgi, M. A.

AU - Ligabue, F.

AU - Lusiani, A.

AU - Mannelli, E. B.

AU - Marrocchesi, P. S.

AU - Messineo, A.

AU - Palla, F.

AU - Sanguinetti, G.

AU - Scapellato, S.

AU - Steinberger, J.

AU - Tenchini, R.

AU - Tonelli, G.

AU - Triggiani, G.

AU - Carter, J. M.

AU - Green, M. G.

AU - March, P. V.

AU - Medcalf, T.

AU - Saich, M. R.

AU - Strong, J. A.

AU - Thomas, R. M.

AU - Wildish, T.

AU - Botterill, D. R.

AU - Clifft, R. W.

AU - Edgecock, T. R.

AU - Edwards, M.

AU - Fisher, S. M.

AU - Harvey, J.

AU - Jones, T. J.

AU - Norton, P. R.

AU - Salmon, D. P.

AU - Thompson, J. C.

AU - Bloch-Devaux, B.

AU - Colas, P.

AU - Klopfenstein, C.

AU - Lançon, E.

AU - Locci, E.

AU - Loucatos, S.

AU - Mirabito, L.

AU - Monnier, E.

AU - Perez, P.

AU - Perrier, F.

AU - Rander, J.

AU - Renardy, J. F.

AU - Roussarie, A.

AU - Schuller, J. P.

AU - Ashman, J. G.

AU - Booth, C. N.

AU - Combley, F.

AU - Dinsdale, M.

AU - Martin, J.

AU - Parker, D.

AU - Thompson, L. F.

AU - Brandt, S.

AU - Burkhardt, H.

AU - Grupen, C.

AU - Meinhard, H.

AU - Neugebauer, E.

AU - Schäfer, U.

AU - Seywerd, H.

AU - Gobbo, B.

AU - Liello, F.

AU - Milotti, E.

AU - Ragusa, F.

AU - Rolandi, L.

AU - Bellantoni, L.

AU - Boudreau, J. F.

AU - Cinabro, D.

AU - Conway, J. S.

AU - Cowen, D. F.

AU - Feng, Z.

AU - Harton, J. L.

AU - Hilgart, J.

AU - Jared, R. C.

AU - Johnson, R. P.

AU - Leclaire, B. W.

AU - Pan, Y. B.

AU - Parker, T.

AU - Pater, J. R.

AU - Saadi, Y.

AU - Sharma, V.

AU - Wear, J. A.

AU - Weber, F. V.

AU - Wu, Sau Lan

AU - Xue, S. T.

AU - Zobernig, G.

PY - 1990/5/24

Y1 - 1990/5/24

N2 - A search is reported for decays of the Z0 into π0γ, ηγ and η′ (958)γ in e+e- collisions using data collected during a scan around the Z0 mass. In order to search for π0γ final states, in which the two photons from the π0 decay are unresolved, the production of pairs of high-energy electromagnetic clusters is studied. The data are compared with the expectations from the pure QED process e+e- → γγ, and a 95% confidence level upper limit on the branching ratio of the Z0 into π0γ of 4.9 × 10-4 is derived. For η′γ, the decay modes of the mesons that contain two charged particles are largely free from QED background. These modes are used to place upper limits of 4.6 × 10-4 and 2.2 × 10-4 on the corresponding branching ratios of the Z0.

AB - A search is reported for decays of the Z0 into π0γ, ηγ and η′ (958)γ in e+e- collisions using data collected during a scan around the Z0 mass. In order to search for π0γ final states, in which the two photons from the π0 decay are unresolved, the production of pairs of high-energy electromagnetic clusters is studied. The data are compared with the expectations from the pure QED process e+e- → γγ, and a 95% confidence level upper limit on the branching ratio of the Z0 into π0γ of 4.9 × 10-4 is derived. For η′γ, the decay modes of the mesons that contain two charged particles are largely free from QED background. These modes are used to place upper limits of 4.6 × 10-4 and 2.2 × 10-4 on the corresponding branching ratios of the Z0.

UR - http://www.scopus.com/inward/record.url?scp=13644262173&partnerID=8YFLogxK

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U2 - 10.1016/0370-2693(90)91883-D

DO - 10.1016/0370-2693(90)91883-D

M3 - Article

AN - SCOPUS:13644262173

VL - 241

SP - 635

EP - 643

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 - 4

ER -

Decamp D, Deschizeaux B, Goy C, Lees JP, Minard MN, Crespo JM et al. Search for decays of the Z0 into a photon and a pseudoscalar meson. Physics Letters B. 1990 May 24;241(4):635-643. https://doi.org/10.1016/0370-2693(90)91883-D