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izvor podataka: crosbi

Measurement of the atmospheric muon charge ratio with the OPERA detector (CROSBI ID 164729)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

(OPERA Collaboration) Agafonova, N. ; ... ; Jakovčić, Krešimir ; ... ; Kliček, Budimir ; ... ; Ljubičić, Ante ; ... ; Stipčević, Mario ; ... et al. Measurement of the atmospheric muon charge ratio with the OPERA detector // European physical journal C : particles and fields, 67 (2010), 1-2; 25-37. doi: 10.1140/epjc/s10052-010-1284-8

Podaci o odgovornosti

Agafonova, N. ; ... ; Jakovčić, Krešimir ; ... ; Kliček, Budimir ; ... ; Ljubičić, Ante ; ... ; Stipčević, Mario ; ... ; Zimmermann, R.

OPERA Collaboration

engleski

Measurement of the atmospheric muon charge ratio with the OPERA detector

The OPERA detector at the Gran Sasso underground laboratory (LNGS) was used to measure the atmospheric muon charge ratio Rμ = Nμ+/Nμ− in the TeV energy region.We analyzed 403069 atmospheric muons corresponding to 113.4 days of livetime during the 2008 CNGS run. We computed separately the muon charge ratio for single and for multiple muon events in order to select different energy regions of the primary cosmic ray spectrum and to test the Rμ dependence on the primary composition. The measured Rμ values were corrected taking into account the charge-misidentification errors. Data have also been grouped in five bins of the “vertical surface energy” Eμ cos θ. A fit to a simplified model of muon production in the atmosphere allowed the determination of the pion and kaon charge ratios weighted by the cosmic ray energy spectrum

atmospheric muons ; charge ratios ; OPERA detector ; Gran Sasso

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Podaci o izdanju

67 (1-2)

2010.

25-37

objavljeno

1434-6044

1434-6052

10.1140/epjc/s10052-010-1284-8

Povezanost rada

Fizika

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