Measurement of the atmospheric $\nu_\mu$ energy spectrum from 100 GeV to 200 TeV with the ANTARES telescope

S Adrianmartinez,Adelin Albert,I Al Samarai,M Andre,M Anghinolfi,G Anton,S Anvar,M Ardid,T Astraatmadja,Jj Aubert,B Baret,J Barriosmarti,S Basa,V Bertin,S Biagi,C Bigongiari,C Bogazzi, B Bouhou,M C Bouwhuis,R Bruijn,J Brunner,J Busto,A Capone,L Caramete,C Carloganu, J Carr,S Cecchini, Z Charif,Ph Charvis,T Chiarusi,M Circella,F Classen, L Core,H Costantini,P Coyle, A Creusot,C Curtil,I Dekeyser,A Deschamps,G De Bonis,M P Decowski,C Distefano,C Donzaud,D Dornic,Q Dorosti,D Drouhin,A Dumas,T Eberl,U Emanuele, A Enzenhofer,J P Ernenwein,S Escoffier, K Fehn,P Fermani,V Flaminio,F Folger, U Fritsch,L A Fusco,S Galata, P Gay, S Geisselsoder,K Geyer, G Giacomelli,V Giordano,A Gleixner,J P Gomezgonzalez,K Graf,G Guillard,H Van Haren,A Heijboer,Y Hello,J J Hernandezrey,Betsy C Herold,J Hossl,C W James,M De Jong,M Kadler,O Kalekin,A Kappes,U F Katz,P Kooijman,A Kouchner,I Kreykenbohm,V Kulikovskiy,R Lahmann, E Lambard,G Lambard,G Larosa,D Lattuada, D Lefevre,E Leonora,D Lo Presti,H Loehner,S Loucatos,F Louis,S Mangano,M Marcelin,A Margiotta,J A Martinezmora

EUROPEAN PHYSICAL JOURNAL C（2013）

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摘要

Atmospheric neutrinos are produced during cascades initiated by the interaction of primary cosmic rays with air nuclei. In this paper, a measurement of the atmospheric energy spectrum in the energy range 0.1-200 TeV is presented, using data collected by the ANTARES underwater neutrino telescope from 2008 to 2011. Overall, the measured flux is similar to 25 % higher than predicted by the conventional neutrino flux, and compatible with the measurements reported in ice. The flux is compatible with a single power-law dependence with spectral index gamma (meas)=3.58 +/- 0.12. With the present statistics the contribution of prompt neutrinos cannot be established.

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