Searching for cosmic ray anisotropy using the calorimeter in the PAMELA experiment

A. V. Karelin, O. Adriani, G. C. Barbarino, G. A. Bazilevskaya, R. Belotti, M. Boezio, E. A. Bogomolov, L. Bonechi, M. Bongi, V. Bonvicini, S. V. Borisov, S. Bottai, A. Bruno, A. Vacchi, E. Vannuccini, G. I. Vasilyev, S. A. Voronov, Y. Wu, A. M. Galper, I. A. DanilchenkoM. P. De Pascale, C. De Santis, N. De Simone, V. Di Felice, G. Jerse, V. G. Zverev, G. Zampa, N. Zampa, F. Cafagna, D. Campana, R. Carbone, P. Carlson, M. Casolino, G. Castellini, A. N. Kvashnin, S. V. Koldashov, S. A. Koldobskiy, L. Consiglio, S. Yu Krutkov, A. A. Leonov, V. Malvezzi, L. Marcelli, A. G. Mayorov, V. V. Malakhov, W. Menn, V. V. Mikhailov, E. Mocchiutti, A. Monaco, N. Mori, G. Osteria, P. Papini, M. Pearce, P. Picozza, C. Pizzolotto, M. Ricci, S. Ricciarini, L. Rossetto, M. F. Runtso, M. Simon, R. Sparvoli, P. Spillantini, Yu I. Stozhkov, Yu T. Yurkin

Research output: Contribution to journalArticlepeer-review

Abstract

The satellite-borne PAMELA experiment studies cosmic ray spectra over a wide range of energies. The instrument was placed in orbit in June 2006 and remains there to the present day. A position-sensitive calorimeter is one of the main parts of the PAMELA instrument. The calorimeter data are used to determine the energy of particles that interact within it, separate the electron component of the detected radiation from the nuclear component, and reconstruct the tracks of particles passing through the instrument. The special calorimeter and S4 scintillation shower detector triggers enables us to expand our statistics considerably. Using the calorimeter data in generating these triggers means we can study the anisotropy of cosmic rays with energies in excess of tens of GeV. This method of anisotropy detection is based on reconstructing the direction of a particle's arrival from the axis of the secondary particle cascade in the calorimeter.

Original languageEnglish
Pages (from-to)1305-1308
Number of pages4
JournalBulletin of the Russian Academy of Sciences: Physics
Volume77
Issue number11
DOIs
StatePublished - Nov 2013
Externally publishedYes

Bibliographical note

Funding Information:
aNational Nuclear Research University (MEPhI), Moscow, 115409 Russia bLebedev Physics Institute, Russian Academy of Sciences, Moscow, 119991 Russia cIoffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021 Russia dINFN Florence and Department of Physics, University of Florence, Florence, 50019 Italy eINFN Naples and Department of Physics, University of Naples, Naples, 80126 Italy fINFN Bari and Department of Physics, University of Bari, Bari, 70126 Italy gINFN Trieste and Department of Physics, University of Trieste, Trieste, 34147 Italy hINFN Rome and Department of Physics, Tor Vergata University of Rome, Rome, 00133 Italy iDepartment of Physics, Royal Institute of Technology, and the Oskar Klein Center for Cosmoparticle Physics, AlbaNova University Center, Stockholm, 10691 Sweden jNello Carrara Institute of Applied Physics, Sesto Fiorentino, Florence, 50019 Italy kDepartment of Physics, University of Siegen, Siegen, 57068 Germany lINFN, Frascati National Laboratories, Frascati, 00044 Italy e mail: [email protected]

Funding

aNational Nuclear Research University (MEPhI), Moscow, 115409 Russia bLebedev Physics Institute, Russian Academy of Sciences, Moscow, 119991 Russia cIoffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021 Russia dINFN Florence and Department of Physics, University of Florence, Florence, 50019 Italy eINFN Naples and Department of Physics, University of Naples, Naples, 80126 Italy fINFN Bari and Department of Physics, University of Bari, Bari, 70126 Italy gINFN Trieste and Department of Physics, University of Trieste, Trieste, 34147 Italy hINFN Rome and Department of Physics, Tor Vergata University of Rome, Rome, 00133 Italy iDepartment of Physics, Royal Institute of Technology, and the Oskar Klein Center for Cosmoparticle Physics, AlbaNova University Center, Stockholm, 10691 Sweden jNello Carrara Institute of Applied Physics, Sesto Fiorentino, Florence, 50019 Italy kDepartment of Physics, University of Siegen, Siegen, 57068 Germany lINFN, Frascati National Laboratories, Frascati, 00044 Italy e mail: [email protected]

FundersFunder number
Department of Physics
National Laboratories
Tor Vergata University of Rome, Rome
University of Siegen
aNational Nuclear Research University
Università degli Studi di Napoli Federico II
Royal Melbourne Institute of Technology
Russian Academy of Sciences
Università degli Studi di Trieste

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