Search for nuclearites using the MACRO detector

S. Ahlen, M. Ambrosio, R. Antolini, G. Auriemma, R. Baker, A. Baldini, G. C. Barbarino, B. C. Barish, G. Battistoni, R. Bellotti, C. Bemporad, P. Bernardini, H. Bilokon, V. Bisi, C. Bloise, S. Bussino, F. Cafagna, M. Calicchio, P. Campana, D. CampanaM. Carboni, S. Cecchini, F. Cei, V. Chiarella, C. Chiera, A. Cobis, R. Cormack, A. Corona, S. Coutu, G. Decataldo, H. Dekhissi, C. Demarzo, M. De Vincenzi, A. Di Credico, E. Diehl, O. Erriquez, C. Favuzzi, D. Ficenec, C. Forti, L. Foti, P. Fusco, G. Giacomelli, G. Giannini, N. Giglietto, P. Giubellino, M. Grassi, P. Green, A. Grillo, F. Guarino, C. Gustavino, A. Habig, R. Heinz, J. T. Hong, E. Iarocci, E. Katsavounidis, E. Kearns, S. Klein, S. Kyriazopoulou, E. Lamanna, C. Lane, C. Lee, D. Levin, P. Lipari, G. Liu, R. Liu, M. J. Longo, G. Ludlam, G. Mancarella, G. Mandrioli, A. Margiotta-Neri, A. Marin, A. Marini, D. Martello, G. Martellotti, A. Marzari Chiesa, M. Masera, P. Matteuzzi, D. G. Michael, L. Miller, P. Monacelli, M. Monteno, S. Mufson, J. Musser, S. Nutter, C. Okada, G. Osteria, O. Palamara, S. Parlati, V. Patera, L. Patrizii, R. Pazzi, C. W. Peck, J. Petrakis, S. Petrera, N. D. Pignatano, P. Pistilli, F. Predieri, L. Ramello, J. Reynoldson, F. Ronga, G. Rosa, C. Satriano, L. Satta, E. Scapparone, K. Scholberg, A. Sciubba, P. Serra Lugaresi, M. Severi, M. Sitta, P. Spinelli, M. Spinetti, M. Spurio, J. Steele, R. Steinberg, J. L. Stone, L. R. Sulak, A. Surdo, G. Tarlé, V. Togo, V. Valente, G. R. Verdone, C. W. Walter, R. Webb, W. Worstell

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Abstract

A negative search using 1/12 of the eventual MACRO detector has yielded nuclearite flux limits of 1.1×10-14 cm-2 sr-1 s-1 for 10-10<m<0.1 g, and 5.5×10-15 cm-2 sr-1 s-1 for m>0.1 g. We have modified the formula of De Rújula and Glashow for the light yield of nuclearites to include the uv light absorbed and reemitted in the visible region, and proved that the MACRO sensitivity extends almost to the escape velocity of the Earth. Our flux limit, therefore, can be used to address nuclearites that are possibly trapped in the solar system.

Original languageEnglish (US)
Pages (from-to)1860-1863
Number of pages4
JournalPhysical review letters
Volume69
Issue number13
DOIs
StatePublished - 1992

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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