Measurement of antiproton flux in primary cosmic radiation with PAMELA experiment

被引：2
|
作者：
Mayorov, A. G. [1 ]
Adriani, O.
Barbarino, G. C.
Bazilevskaya, G. A.
Bellotti, R.
Boezio, M.
Bogomolov, E. A.
Bonechi, L.
Bongi, M.
Bonvicini, V.
Borisov, S. V. [1 ]
Bottai, S.
Bruno, A.
Cafagna, F.
Campana, D.
Carbone, R.
Carlson, P.
Casolino, M.
Castellini, G.
Consiglio, L.
De Pascale, M. P.
De Santis, C.
De Simone, N.
Di Felice, V.
Galper, A. M. [1 ]
Gillard, W.
Jerse, G.
Karelin, A. V. [1 ]
Kheymits, M. D. [1 ]
Koldashov, S. V. [1 ]
Koldobskiy, S. A. [1 ]
Krutkov, S. Y.
Kvashnin, A. N.
Leonov, A. A. [1 ]
Malakhov, V. V. [1 ]
Marcelli, L.
Menn, W.
Mikhailov, V. V. [1 ]
Mocchiutti, E.
Monaco, A.
Mori, N.
Nikonov, N. N.
Osteria, G.
Palma, F.
Papini, P.
Pearce, M.
Picozza, P.
Pizzolotto, C.
Ricci, M.
Ricciarini, S. B.
机构：
[1] Natl Res Nucl Univ MEPhI, RU-115409 Moscow, Russia
来源：
23RD EUROPEAN COSMIC RAY SYMPOSIUM (AND 32ND RUSSIAN COSMIC RAY CONFERENCE) | 2013年 / 409卷
基金：
瑞典研究理事会; 俄罗斯基础研究基金会;
关键词：
ANTI-PROTONS; RAYS; MATTER;
D O I：
10.1088/1742-6596/409/1/012056
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The new method based on the classification algorithms was developed to separate antiprotons and electrons in the PAMELA experiment. Training samples based on Monte-Carlo simulation of particle's interactions in the PAMELA imaging Si/W calorimeter were used to achieve rejection factor and to keep high antiproton efficiency. With comparison to the previous publication the number of events was increased 1.5 times. Information collected from the mission start in 2006 till January 2010 was used in the analysis. 2800 events were found in the energy range from 60 MeV to 350 GeV. The flux of antiprotons in galactic cosmic radiation obtained with new method is presented.
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收藏
页数：4
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