Cosmic-muon flux and annual modulation in Borexino at 3800 m water-equivalent depth - IN2P3 - Institut national de physique nucléaire et de physique des particules Access content directly
Journal Articles Journal of Cosmology and Astroparticle Physics Year : 2012

Cosmic-muon flux and annual modulation in Borexino at 3800 m water-equivalent depth

G. Bellini
  • Function : Author
J. Benziger
  • Function : Author
D. Bick
  • Function : Author
G. Bonfini
  • Function : Author
D. Bravo
  • Function : Author
M. Buizza Avanzini
B. Caccianiga
  • Function : Author
L. Cadonati
  • Function : Author
F. Calaprice
  • Function : Author
C. Carraro
  • Function : Author
P. Cavalcante
  • Function : Author
A. Chavarria
  • Function : Author
A. Chepurnov
  • Function : Author
D. d'Angelo
  • Function : Author
S. Davini
  • Function : Author
A. Derbin
  • Function : Author
A. Etenko
  • Function : Author
F. von Feilitzsch
  • Function : Author
K. Fomenko
  • Function : Author
D. Franco
C. Galbiati
  • Function : Author
S. Gazzana
  • Function : Author
C. Ghiano
  • Function : Author
M. Giammarchi
  • Function : Author
M. Goeger-Neff
  • Function : Author
A. Goretti
  • Function : Author
L. Grandi
  • Function : Author
E. Guardincerri
  • Function : Author
C. Hagner
  • Function : Author
S. Hardy
  • Function : Author
Aldo Ianni
  • Function : Author
Andrea Ianni
  • Function : Author
D. Korablev
  • Function : Author
G. Korga
  • Function : Author
Y. Koshio
  • Function : Author
M. Laubenstein
  • Function : Author
T. Lewke
  • Function : Author
E. Litvinovich
  • Function : Author
B. Loer
  • Function : Author
F. Lombardi
  • Function : Author
P. Lombardi
  • Function : Author
L. Ludhova
  • Function : Author
I. Machulin
  • Function : Author
S. Manecki
  • Function : Author
W. Maneschg
  • Function : Author
G. Manuzio
  • Function : Author
Q. Meindl
  • Function : Author
E. Meroni
  • Function : Author
L. Miramonti
  • Function : Author
M. Misiaszek
  • Function : Author
D. Montanari
  • Function : Author
P. Mosteiro
  • Function : Author
V. Muratova
  • Function : Author
L. Oberauer
  • Function : Author
F. Ortica
  • Function : Author
K. Otis
  • Function : Author
M. Pallavicini
L. Papp
  • Function : Author
L. Perasso
  • Function : Author
S. Perasso
  • Function : Author
A. Pocar
  • Function : Author
R. S. Raghavan
  • Function : Author
G. Ranucci
  • Function : Author
A. Razeto
  • Function : Author
A. Re
  • Function : Author
A. Romani
  • Function : Author
A. Sabelnikov
  • Function : Author
R. Saldanha
  • Function : Author
C. Salvo
  • Function : Author
S. Schönert
  • Function : Author
H. Simgen
M. Skorokhvatov
  • Function : Author
O. Smirnov
  • Function : Author
A. Sotnikov
  • Function : Author
S. Sukhotin
  • Function : Author
Y. Suvorov
  • Function : Author
R. Tartaglia
  • Function : Author
G. Testera
  • Function : Author
R. B. Vogelaar
  • Function : Author
J. Winter
  • Function : Author
M. Wojcik
  • Function : Author
A. Wright
  • Function : Author
M. Wurm
  • Function : Author
J. Xu
  • Function : Author
O. Zaimidoroga
  • Function : Author
S. Zavatarelli
  • Function : Author
G. Zuzel
  • Function : Author

Abstract

We have measured the muon flux at the underground Gran Sasso National Laboratory (3800 m w.e.) to be (3.41 \pm 0.01) \times 10-4m-2s-1 using four years of Borexino data. A modulation of this signal is observed with a period of (366\pm3) days and a relative amplitude of (1.29 \pm 0.07)%. The measured phase is (179 \pm 6) days, corresponding to a maximum on the 28th of June. Using the most complete atmospheric data models available, muon rate fluctuations are shown to be positively correlated with atmospheric temperature, with an effective coefficient {\alpha}T = 0.93 \pm 0.04. This result represents the most precise study of the muon flux modulation for this site and is in good agreement with expectations.

Dates and versions

in2p3-00679855 , version 1 (16-03-2012)

Identifiers

Cite

G. Bellini, J. Benziger, D. Bick, G. Bonfini, D. Bravo, et al.. Cosmic-muon flux and annual modulation in Borexino at 3800 m water-equivalent depth. Journal of Cosmology and Astroparticle Physics, 2012, 05, pp.015. ⟨10.1088/1475-7516/2012/05/015⟩. ⟨in2p3-00679855⟩
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