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Measurement of the flux of primary cosmic ray antiprotons with energies of 60 MeV to 350 GeV in the PAMELA experiment

  • Astrophysics and Cosmology
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Abstract

It is interesting to measure the antiproton galactic component in cosmic rays in order to study the mechanisms by which particles and antiparticles are generated and propagate in the Galaxy and to search for new sources of, e.g., annihilation or decay of dark matter hypothetical particles. The antiproton spectrum and the ratio of the fluxes of primary cosmic ray antiprotons to protons with energies of 60 MeV to 350 GeV found from the data obtained from June 2006 to January 2010 in the PAMELA experiment are presented. The usage of the advanced data processing method based on the data classification mathematical model made it possible to increase statistics and analyze the region of higher energies than in the earlier works.

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Authors and Affiliations

  1. Department of Physics, University of Florence, I-50019, Sesto Fiorentino, Florence, Italy

    O. Adriani, L. Bonechi, N. Mori & P. Spillantini

  2. INFN, Sezione di Florence, I-50019, Sesto Fiorentino, Florence, Italy

    O. Adriani, M. Bongi, L. Bonechi, S. Bottai, E. Vannuccini, N. Mori, P. Papini, S. Ricciarini & P. Spillantini

  3. Lebedev Physical Institute, Russian Academy of Sciences, Leninskii pr. 53, Moscow, 119991, Russia

    G. A. Bazilevskaya, A. N. Kvashnin & Y. I. Stozhkov

  4. Department of Physics, University of Naples “Federico II,”, I-80126, Naples, Italy

    G. C. Barbarino

  5. INFN, Sezione di Naples, I-80126, Naples, Italy

    G. C. Barbarino, D. Campana, R. Carbone, L. Consiglio & G. Osteria

  6. Department of Physics, University of Bari, I-70126, Bari, Italy

    R. Bellotti, A. Bruno & A. Monaco

  7. INFN, Sezione di Bari, I-70126, Bari, Italy

    R. Bellotti, A. Bruno, F. Cafagna & A. Monaco

  8. INFN, Sezione di Trieste, I-34149, Trieste, Italy

    M. Boezio, V. Bonvicini, A. Vacchi, G. Jerse, G. Zampa, N. Zampa, E. Mocchiutti, C. Pizzolotto & R. Sarkar

  9. Ioffe Physical Technical Institute, Russian Academy of Sciences, Politekhnicheskaya ul. 26, St. Petersburg, 194021, Russia

    E. A. Bogomolov, G. I. Vasilyev, S. Y. Krutkov, N. N. Nikonov & F. Palma

  10. INFN, Sezione di Rome Tor Vergata, I-00133, Rome, Italy

    S. V. Borisov, M. Casolino, W. Malvezzi, L. Marcelli, N. N. Nikonov, F. Palma, M. P. de Pascale, P. Picozza, C. De Santis, N. De Simone, R. Sparvoli & V. Di Felice

  11. Department of Physics, University of Rome Tor Vergata, I-00133, Rome, Italy

    S. V. Borisov, R. Carbone, N. N. Nikonov, M. P. de Pascale, P. Picozza, N. De Simone, R. Sparvoli & V. Di Felice

  12. National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia

    S. V. Borisov, S. A. Voronov, A. M. Galper, L. A. Grishantseva, I. A. Danilchenko, V. G. Zverev, A. V. Karelin, S. V. Koldashov, S. A. Koldobskiy, A. A. Leonov, A. G. Mayorov, V. V. Malakhov, V. V. Mikhailov, M. F. Runtso & Y. T. Yurkin

  13. Department of Physics, KTH Royal Institute of Technology, and the Oskar Klein Centre for Cosmoparticle Physics, Alba Nova University Centre, SE-10691, Stockholm, Sweden

    J. Wu, W. Gillard, P. Carlson, M. Pearce & L. Rossetto

  14. IFAC, I-50019, Sesto Fiorentino, Florence, Italy

    G. Castellini

  15. Department of Physics, University of Trieste, I-34147, Trieste, Italy

    G. Jerse

  16. Department of Physics, Universitát Siegen, D-57068, Siegen, Germany

    W. Menn

  17. Laboratori Nazionali di Frascati, INFN, Via Enrico Fermi 40, I-00044, Frascati, Italy

    M. Ricci & M. Simon

  18. RIKEN, Advanced Science Institute, Wako-shi, Japan

    M. Casolino

Authors
  1. O. Adriani
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  2. G. A. Bazilevskaya
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  3. G. C. Barbarino
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  4. R. Bellotti
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  5. M. Boezio
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  6. E. A. Bogomolov
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  7. V. Bonvicini
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  9. L. Bonechi
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  10. S. V. Borisov
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  11. S. Bottai
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  12. A. Bruno
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  13. A. Vacchi
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  14. E. Vannuccini
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  15. G. I. Vasilyev
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  33. A. N. Kvashnin
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  34. S. V. Koldashov
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  38. A. A. Leonov
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  39. A. G. Mayorov
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  53. M. P. de Pascale
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  54. P. Picozza
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  67. V. Di Felice
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  68. Y. T. Yurkin
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Corresponding author

Correspondence to A. G. Mayorov.

Additional information

Original Russian Text © O. Adriani, G.A. Bazilevskaya, G.C. Barbarino, R. Bellotti, M. Boezio, E.A. Bogomolov, V. Bonvicini, M. Bongi, L. Bonechi, S.V. Borisov, S. Bottai, A. Bruno, A. Vacchi, E. Vannuccini, G.I. Vasilyev, S.A. Voronov, J. Wu, A.M. Galper, L.A. Grishantseva, I.A. Danilchenko, W. Gillard, G. Jerse, G. Zampa, N. Zampa, V.G. Zverev, M. Casolino, D. Campana, R. Carbone, A.V. Karelin, P. Carlson, G. Castellini, F. Cafagna, A.N. Kvashnin, S.V. Koldashov, S.A. Koldobskiy, S.Y. Krutkov, L. Consiglio, A.A. Leonov, A.G. Mayorov, V.V. Malakhov, W. Malvezzi, L. Marcelli, W. Menn, V.V. Mikhailov, E. Mocchiutti, A. Monaco, N. Mori, N.N. Nikonov, G. Osteria, F. Palma, P. Papini, C. Pizzolotto, M.P. de Pascale, P. Picozza, M. Pearce, M. Ricci, S. Ricciarini, L. Rossetto, M.F. Runtso, C. De Santis, R. Sarkar, M. Simon, N. De Simone, R. Sparvoli, P. Spillantini, Y.I. Stozhkov, V. Di Felice, Y.T. Yurkin, 2012, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2012, Vol. 96, No. 10, pp. 693–699.

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Adriani, O., Bazilevskaya, G.A., Barbarino, G.C. et al. Measurement of the flux of primary cosmic ray antiprotons with energies of 60 MeV to 350 GeV in the PAMELA experiment. Jetp Lett. 96, 621–627 (2013). https://doi.org/10.1134/S002136401222002X

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  • DOI: https://doi.org/10.1134/S002136401222002X

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