Single muon angular distributions observed in the LVD particle astrophysics experiment

M. Aglietta, B. Alpat, E. D. Alyea, P. Antonioli, G. Anzivino, G. Badino, Y. Ban, G. Bari, M. Basile, A. Benelli, V. S. Berezinsky, L. Bergamasco, R. Bertoni, S. Bianco, A. Bizzeti, A. Bosco, G. Brugnola, G. Bruni, Y. Cao, G. Cara RomeoR. Casaccia, C. Castagnoli, A. Castellina, K. Chen, R. Chen, J. A. Chinellato, L. Cifarelli, F. Cindolo, G. Cini, S. Cong, A. Contin, V. L. Dadykin, M. Dardo, A. De Silva, S. De Pasquale, M. Deutsch, L. G. Dos Santos, R. I. Enikeev, D. Fabbri, F. L. Fabbri, W. Fulgione, P. Galeotti, M. Gatta, P. Ghia, P. Giusti, F. Grianti, S. Gu, Y. Guo, E. S. Hafen, P. Haridas, D. Hungerford, G. Iacobucci, N. Inoue, F. F. Khalchukov, E. V. Korolkova, P. V. Kortchaguin, V. B. Kortchaguin, V. A. Kudryavtsev, G. Landi, K. Lau, X. Lin, M. Lindozzi, L. Lu, M. Luvisetto, J. Ma, Z. Ma, G. Maccarrone, A. S. Malguin, Z. Mao, M. A. Markov, T. Massam, B. Mayes, N. Mengotti Silva, A. Misaki, B. Monteleoni, C. Morello, J. Moromisato, R. Nania, G. Navarra, L. Panaro, D. Parks, P. G. Pelfer, L. Periale, P. Picchi, L. Pinsky, I. A. Pless, M. Pu, J. Pyrlik, J. Qiu, V. G. Ryasny, O. G. Ryazhskaya, O. Saavedra, K. Saitoh, D. Sanders, G. Sartorelli, S. Sarwar, D. Shen, N. Taborgna, V. P. Talochkin, H. Tang, J. Tang, W. Tian, G. C. Trinchero, A. Turtelli, I. Uman, P. Vallania, M. Ventura, S. Vernetto, E. von Goeler, L. Votano, T. Wada, F. Wang, H. Wang, S. Wang, R. Weinstein, M. Widgoff, L. Xu, Z. Xu, V. F. Yakushev, I. Yamamoto, A. Zallo, G. T. Zatsepin, X. Zhou, Q. Zhu, X. Zhu, B. Zhuang, A. Zichichi

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Abstract

The first angular distribution data from 5547 hours of operation of the LVD detector are presented. The technique of track reconstruction is described. A total of 452 657 single muons were reconstructed for this period. The data are acceptance corrected in our final plots. The total single muon flux (the total flux from above impinging on a sphere of unit cross sectional area) in the Gran Sasso Laboratory is 1.03 muons per hour per square meter. The total flux crossing a unit horizontal area from above is 0.79 muons per hour per square meter. The acceptance-corrected intensity at cos θ = 1 is 0.349 muons per hour per square meter per steradian (9.7× l0-9 muons per second per square centimeter per steradian). We present, for the first time from Gran Sasso Laboratory, data at near-horizontal zenith angles.

Original languageEnglish
Pages (from-to)103-116
Number of pages14
JournalAstroparticle Physics
Volume2
Issue number2
DOIs
StatePublished - May 1994
Externally publishedYes

Bibliographical note

Funding Information:
We wish to thank the staff of the Gran Sasso Laboratory for their aid and collaboration. One of the authors would like to thank L. Banks of the physics departmenta nd J. Province of Computer Services at SouthwestM issouri State University for providing network accessd uring the preparation of this document. This work was supported by the Italian Institute for Nuclear Physics (INFN) and in part by the US Department of Energy, the US National Science Foundation, and the State of Texas under its TATRP program.

Funding

We wish to thank the staff of the Gran Sasso Laboratory for their aid and collaboration. One of the authors would like to thank L. Banks of the physics departmenta nd J. Province of Computer Services at SouthwestM issouri State University for providing network accessd uring the preparation of this document. This work was supported by the Italian Institute for Nuclear Physics (INFN) and in part by the US Department of Energy, the US National Science Foundation, and the State of Texas under its TATRP program.

FundersFunder number
Italian Institute for Nuclear Physics
State of Texas
US Department of Energy
US National Science Foundation
Instituto Nazionale di Fisica Nucleare

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