Performance of the MACRO detector at Gran Sasso: Moon shadow and seasonal variations

  • N. Giglietto
  • , 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
  • , T. Bosio
  • , C. Bower
  • , S. Bussino
  • , F. Cafagna
  • , M. Calicchio
  • D. Campana, M. Carboni, M. Castellano, S. Cecchini, F. Cei, V. Chiarella, A. Corona, S. Coutu, L. de Benedictis, G. de Cataldo, H. Dekhissi, C. de Marzo, I. de Mitri, M. de Vincenzi, A. di Credico, O. Erriquez, R. Fantini, C. Favuzzi, C. Forti, P. Fusco, G. Giacomelli, G. Giannini, M. Goretti, M. Grassi, P. Green, A. Grillo, F. Guarino, P. Guarnaccia, C. Gustavino, A. Habig, K. Hanson, A. Hawthorne, R. Heinz, J. T. Hong, E. Iarocci, E. Katsavounidis, E. Kearns, S. Kyriazopoulou, E. Lamanna, C. Lane, D. S. Levin, P. Lipari, G. Liu, R. Liu, N. P. Longley, M. J. Longo, G. Ludlam, F. Maaroufi, G. Mancarella, G. Mandrioli, A. Margiotta-Neri, A. Marini, D. Martello, A. Marzari-Chiesa, M. N. Mazziotta, D. G. Michael, S. Mikheyev, L. Miller, P. Monacelli, T. Montaruli, M. Monteno, S. Mufson, J. Musser, D. Nicoló, R. Nolty, C. Okada, C. Orth, G. Osteria, O. Palamara, S. Parlati, V. Patera, L. Patrizii, R. Pazzi, C. W. Peck, S. Petrera, N. D. Pignatano, P. Pistilli, V. Popa, A. Rainó, J. Reynoldson, F. Ronga, U. Rubizzo, A. Sanzgiri, F. Sartogo, C. Satriano, L. Satta, E. Scapparone, K. Scholberg, A. Sciubba, P. Serra-Lugaresi, M. Severi, M. Sitta, P. F. Spada, P. Spinelli, M. Spinetti, M. Spurio, R. Steinberg, J. L. Stone, L. R. Sulak, A. Surdo, G. Tarlé, V. Togo, V. Valente, E. Vilela, C. W. Walter, R. Webb

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The MACRO underground detector at Gran Sasso has recorded about 30 million muon events in the period 1989-1995. We have analyzed these data to look for time variations and to study the pointing capabilities of the apparatus in the search for astrophysical point sources. We have observed a 3% seasonal variation of the high energy muon rate, due to atmospheric temperature variations, in agreement with theoretical predictions. We report also the detection of the moon shadowing effect with a statistical significance of 3.7 σ. The results obtained straighten the possibility that a "muon astronomy" using underground experiments is possible.

Original languageEnglish (US)
Pages (from-to)180-184
Number of pages5
JournalNuclear Physics B - Proceedings Supplements
Volume61
Issue number3 SUPPL.
DOIs
StatePublished - Feb 1998

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Nuclear and High Energy Physics

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