Measurement of the atmospheric muon charge ratio at TeV energies with the MINOS detector

Επιστημονική δημοσίευση - Άρθρο Περιοδικού uoadl:3117984 37 Αναγνώσεις

Μονάδα:
Ερευνητικό υλικό ΕΚΠΑ
Τίτλος:
Measurement of the atmospheric muon charge ratio at TeV energies with
the MINOS detector
Γλώσσες Τεκμηρίου:
Αγγλικά
Περίληψη:
The 5.4 kton MINOS far detector has been taking charge-separated cosmic
ray muon data since the beginning of August, 2003 at a depth of 2070
m.w.e. in the Soudan Underground Laboratory, Minnesota, USA. The data
with both forward and reversed magnetic field running configurations
were combined to minimize systematic errors in the determination of the
underground muon charge ratio. When averaged, two independent analyses
find the charge ratio underground to be N-mu(+)/N-mu(-)=1.374 +/-
0.004(stat)(-0.010)(+0.012)(sys). Using the map of the Soudan rock
overburden, the muon momenta as measured underground were projected to
the corresponding values at the surface in the energy range 1-7 TeV.
Within this range of energies at the surface, the MINOS data are
consistent with the charge ratio being energy independent at the 2
standard deviation level. When the MINOS results are compared with
measurements at lower energies, a clear rise in the charge ratio in the
energy range 0.3-1.0 TeV is apparent. A qualitative model shows that the
rise is consistent with an increasing contribution of kaon decays to the
muon charge ratio.
Έτος δημοσίευσης:
2007
Συγγραφείς:
Adamson, P.
Andreopoulos, C.
Arms, K. E.
Armstrong, R. and
Auty, D. J.
Avvakumov, S.
Ayres, D. S.
Baller, B. and
Barish, B.
Barnes, Jr., P. D.
Barr, G.
Barrett, W. L. and
Beall, E.
Becker, B. R.
Belias, A.
Bergfeld, T. and
Bernstein, R. H.
Bhattacharya, D.
Bishai, M.
Blake, A. and
Bock, B.
Bock, G. J.
Boehm, J.
Boehnlein, D. J.
Bogert,
D.
Border, P. M.
Bower, C.
Buckley-Geer, E.
Bungau, C.
and Cabrera, A.
Chapman, J. D.
Cherdack, D.
Childress, S.
and Choudhary, B. C.
Cobb, J. H.
Culling, A. J.
de Jong, J.
K.
De Santo, A.
Dierckxsens, M.
Diwan, M. V.
Dorman, M.
and Drakoulakos, D.
Durkin, T.
Erwin, A. R.
Escobar, C. O.
and Evans, J. J.
Harris, E. Falk
Feldman, G. J.
Fields, T.
H.
Ford, R.
Frohne, M. V.
Gallagher, H. R.
Giurgiu, G.
A.
Godley, A.
Gogos, J.
Goodman, M. C.
Gouffon, P. and
Gran, R.
Grashorn, E. W.
Grossman, N.
Grzelak, K.
Habig,
A.
Harris, D.
Harris, P. G.
Hartnell, J.
Hartouni, E. P.
and Hatcher, R.
Heller, K.
Holin, A.
Howcroft, C.
Hylen,
J.
Indurthy, D.
Irwin, G. M.
Ishitsuka, M.
Jaffe, D. E.
and James, C.
Jenner, L.
Jensen, D.
Joffe-Minor, T. and
Kafka, T.
Kang, H. J.
Kasahara, S. M. S.
Kim, M. S. and
Koizumi, G.
Kopp, S.
Kordosky, M.
Koskinen, D. J. and
Kotelnikov, S. K.
Kreymer, A.
Kumaratunga, S.
Lang, K. and
Lebedev, A.
Lee, R.
Ling, J.
Liu, J.
Litchfield, P. J.
and Litchfield, R. P.
Lucas, P.
Mann, W. A.
Marchionni, A.
and Marino, A. D.
Marshak, M. L.
Marshall, J. S.
Mayer, N.
and McGowan, A. M.
Meier, J. R.
Merzon, G. I.
Messier, M. D.
and Michael, D. G.
Milburn, R. H.
Miller, J. L.
Miller, W.
H.
Mishra, S. R.
Mislivec, A.
Miyagawa, P. S.
Moore, C.
D.
Morfin, J.
Mualem, L.
Mufson, S.
Murgia, S. and
Musser, J.
Naples, D.
Nelson, J. K.
Newman, H. B. and
Nichol, R. J.
Nicholls, T. C.
Ochoa-Ricoux, J. P.
Oliver, W.
P.
Osiecki, T.
Ospanov, R.
Paley, J.
Paolone, V. and
Para, A.
Patzak, T.
Pavlovic, Z.
Pearce, G. F.
Peck, C.
W.
Peterson, E. A.
Petyt, D. A.
Ping, H.
Piteira, R. and
Pittam, R.
Plunkett, R. K.
Rahman, D.
Rameika, R. A. and
Raufer, T. M.
Rebel, B.
Reichenbacher, J.
Reyna, D. E. and
Rosenfeld, C.
Rubin, H. A.
Ruddick, K.
Ryabov, V. A. and
Saakyan, R.
Sanchez, M. C.
Saoulidou, N.
Schneps, J. and
Schreiner, P.
Semenov, V. K.
Seun, S. -M.
Shanahan, P. and
Smart, W.
Smirnitsky, V.
Smith, C.
Sousa, A.
Speakman,
B.
Stamoulis, P.
Symes, P. A.
Tagg, N.
Talaga, R. L. and
Tetteh-Lartey, E.
Thomas, J.
Thompson, J.
Thomson, M. A. and
Thron, J. L.
Tinti, G.
Trostin, I.
Tsarev, V. A. and
Tzanakos, G.
Urheim, J.
Vahle, P.
Velissaris, C. and
Verebryusov, V.
Viren, B.
Ward, C. P.
Ward, D. R. and
Watabe, M.
Weber, A.
Webb, R. C.
Wehmann, A.
West, N.
and White, C.
Wojcicki, S. G.
Wright, D. M.
Wu, Q. K. and
Yang, T.
Yumiceva, F. X.
Zheng, H.
Zois, M.
Zwaska, R.
and MINOS Collaboration
Περιοδικό:
Physical Review D
Εκδότης:
AMER PHYSICAL SOC
Τόμος:
76
Αριθμός / τεύχος:
5
Επίσημο URL (Εκδότης):
DOI:
10.1103/PhysRevD.76.052003
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