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Measurement of the charge ratio of atmospheric muons with the CMS detector

V Khachatryan, AM Sirunyan, A Tumasyan, W Adam, T Bergauer, M Dragicevic, J Ero, C Fabjan, M Friedl, R Fruehwirth, et al. (2010) PHYSICS LETTERS B. 692(2). p.83-104
abstract
We present a measurement of the ratio of positive to negative muon fluxes from cosmic ray interactions in the atmosphere, using data collected by the CMS detector both at ground level and in the underground experimental cavern at the CERN LHC. Muons were detected in the momentum range from 5 GeV/c to 1 TeV/c. The surface flux ratio is measured to be 1.2766 +/- 0.0032 (stat.) +/- 0.0032 (syst.), independent of the muon momentum, below 100 GeV/c. This is the most precise measurement to date. At higher momenta the data are consistent with an increase of the charge ratio, in agreement with cosmic ray shower models and compatible with previous measurements by deep-underground experiments. (C) 2010 Published by Elsevier B.V.
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author
organization
year
type
journalArticle (original)
publication status
published
keyword
FLUX, SEA-LEVEL
journal title
PHYSICS LETTERS B
Phys. Lett. B
volume
692
issue
2
pages
22 pages
publisher
ELSEVIER SCIENCE BV
place of publication
AMSTERDAM
Web of Science type
Article
Web of Science id
000282116900005
JCR category
PHYSICS, MULTIDISCIPLINARY
JCR impact factor
5.255 (2010)
JCR rank
6/79 (2010)
JCR quartile
1 (2010)
ISSN
0370-2693
DOI
10.1016/j.physletb.2010.07.033
language
English
UGent publication?
yes
classification
A1
id
1576600
handle
http://hdl.handle.net/1854/LU-1576600
date created
2011-06-24 15:47:00
date last changed
2017-01-02 09:55:07
@article{1576600,
  abstract     = {We present a measurement of the ratio of positive to negative muon fluxes from cosmic ray interactions in the atmosphere, using data collected by the CMS detector both at ground level and in the underground experimental cavern at the CERN LHC. Muons were detected in the momentum range from 5 GeV/c to 1 TeV/c. The surface flux ratio is measured to be 1.2766 +/- 0.0032 (stat.) +/- 0.0032 (syst.), independent of the muon momentum, below 100 GeV/c. This is the most precise measurement to date. At higher momenta the data are consistent with an increase of the charge ratio, in agreement with cosmic ray shower models and compatible with previous measurements by deep-underground experiments. (C) 2010 Published by Elsevier B.V.},
  author       = {Khachatryan, V and Sirunyan, AM and Tumasyan, A and Adam, W and Bergauer, T and Dragicevic, M and Ero, J and Fabjan, C and Friedl, M and Fruehwirth, R and Ghete, VM and Hammer, J and Haensel, S and Hoch, M and Horemann, N and Hrubec, J and Jeitler, M and Kasieczka, G and Kiesenhofer, W and Krammer, M and Liko, D and Mikulec, I and Pernicka, M and Rohringer, H and Schofbeck, R and Strauss, J and Taurok, A and Teischinger, F and Waltenberger, W and Walzel, G and Widl, E and Wulz, CE and Mossolov, V and Shumeiko, N and Gonzalez, JS and Benucci, L and Ceard, L and De Wolf, EA and Hashemi, M and Janssen, X and Maes, T and Mucibello, L and Ochesanu, S and Roland, B and Rougny, R and Selvaggi, M and Van Haevermaet, H and Van Mechelen, P and Van Remortel, N and Adler, V and Beauceron, S and Blyweert, S and D'Hondt, J and Devroede, O and Kalogeropoulos, A and Maes, J and Maes, M and Tavernier, S and Van Doninck, W and Van Mulders, P and Villella, I and Chabert, EC and Charaf, O and Clerbaux, B and De Lentdecker, G and Dero, V and Gay, APR and Hammad, GH and Marage, PE and Velde, CV and Vanlaer, P and Wickens, J and Costantini, Silvia and Gr{\"u}newald, Martin and Klein, Benjamin and Marinov, Andrey and Ryckbosch, Dirk and Thyssen, Filip and Tytgat, Michael and Vanelderen, Lukas and Verwilligen, Piet and Walsh, Sin{\'e}ad Mary and Zaganidis, Nikolaos and Basegmez, S and Bruno, G and Caudron, J and De Jeneret, JDF and Delaere, C and Demin, P and Favart, D and Giammanco, A and Gregoire, G and Hollar, J and Lemaitre, V and Militaru, O and Ovyn, S and Pagano, D and Pin, A and Piotrzkowski, K and Quertenmont, L and Schul, N and Belly, N and Caebergs, T and Daubie, E and Alves, GA and Carneiro, M and Pol, ME and Souza, MHG and Carvalho, W and Da Costa, EM and Damiao, DD and Martins, CDO and De Souza, SF and Mundim, L and Oguri, V and Santoro, A and Do Amaral, SMS and Sznajder, A and De Araujo, FTDS and Dias, FA and Dias, MAF and Tomei, TRFP and Gregores, EM and Marinho, F and Novaes, SF and Padula, SS and Darmenovi, N and Dimitrov, L and Genchevl, V and Laydjiev, P and Piperov, S and Stoykova, S and Sultanov, G and Trayanov, R and Vankov, I and Dyulendarova, M and Hadjiiska, R and Kozhuharov, V and Litov, L and Marinova, E and Mateev, M and Pavlov, B and Petkov, P and Bian, JG an