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Antiprotons of galactic cosmic radiation in the PAMELA experiment

  • Proceedings of the 32nd All-Russia Conference on Cosmic Rays
  • Published:
Bulletin of the Russian Academy of Sciences: Physics Aims and scope

Abstract

A method for antiproton selection against a background of electrons, based on a mathematical model of data classification using variations in interparticle interaction in a calorimeter, and a method for excluding events accompanied by scattering in the inner detectors of a tracking system (which result in errors in the measured trajectory’s curvature and charge sign) from analysis are discussed in this paper. Antiproton spectra and antiproton/proton flux ratio at energies of 0.06 to 350 GeV with statistics of events surpassing those in [1] are obtained. The results can be used to create models for the generation and distribution of particles in the Galaxy, and for searching and studying the nature of hypothetical dark matter particles.

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Author information

Authors and Affiliations

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

    A. G. Mayorov, O. Adriani, L. Bonechi, N. Mori & P. Spilantini

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

    A. G. Mayorov, O. Adriani, L. Bonechi, M. Bongi, S. Bottai, N. Mori, P. Papini, S. Ricciarini, P. Spilantini & E. Vannuccini

  3. Lebedev Institute of Physics, Russian Academy of Sciences, Moscow, 119991, Russia

    G. A. Bazilevskaia, A. N. Kvashnin & Yu. I. Stozhkov

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

    G. Barbarino

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

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

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

    R. Belotti, A. Bruno & A. Monaco

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

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

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

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

  9. Ioffe Physicotechnical Institute, Russian Academy of Sciences, St. Petersburg, 194021, Russia

    E. A. Bogomolov, S. Yu. Krutkov, N. N. Nikonov & G. I. Vasilyev

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

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

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

    S. V. Borisov, M. P. De Pascale, N. De Simone, V. Di Felice, G. Jerse, N. N. Nikonov, F. Palma, P. Picozza & R. Sparvoli

  12. Moscow Engineering Physics Institute (MEPhI), Moscow, 115409, Russia

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

  13. Department of Physics, Oskar Klein Center for Cosmoparticle Physics, AlbaNova University Center, KTH, SE-10691, Stockholm, Sweden

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

  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, University of Siegen, D-57068, Siegen, Germany

    W. Menn & M. Simon

  17. INFN Laboratori Nazionali di Frascati, I-00044, Frascati, Italy

    M. Ricci

  18. RIKEN Advanced Science Institute, Wako-shi, 351-0106, Japan

    M. Casolino

Authors
  1. A. G. Mayorov
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  2. O. Adriani
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  3. G. Barbarino
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  4. G. A. Bazilevskaia
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  5. R. Belotti
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  6. M. Boezio
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  7. E. A. Bogomolov
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  8. L. Bonechi
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  9. M. Bongi
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  10. V. Bonvicini
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  11. S. V. Borisov
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  12. S. Bottai
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  13. A. Bruno
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  14. F. Cafagna
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  15. D. Campana
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  16. R. Carbone
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  17. P. Carlson
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  18. M. Casolino
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  19. G. Castellini
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  20. L. Consiglio
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  21. I. A. Danilchenko
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  22. M. P. De Pascale
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  23. C. De Santis
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  24. N. De Simone
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  25. V. Di Felice
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  26. A. M. Galper
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  27. W. Gillard
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  28. L. A. Grishantseva
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  29. G. Jerse
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  30. A. V. Karelin
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  31. M. D. Kheimits
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  32. S. V. Koldashov
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  33. S. A. Koldobskiy
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  34. S. Yu. Krutkov
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  35. A. N. Kvashnin
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  36. A. A. Leonov
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  37. V. V. Malakhov
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  38. V. Malvezzi
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  39. L. Marcelli
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  40. W. Menn
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  41. V. V. Mikhailov
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  42. E. Mocchiutti
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  43. A. Monaco
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  44. N. Mori
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  45. N. N. Nikonov
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  46. G. Osteria
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  47. F. Palma
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  48. P. Papini
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  49. M. Pearce
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  50. P. Picozza
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  51. S. Pizzolotto
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  52. M. Ricci
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  53. S. Ricciarini
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  54. L. Rozetto
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  55. M. F. Runtso
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  56. R. Sarkar
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  57. M. Simon
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  60. Yu. I. Stozhkov
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  61. A. Vacchi
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  63. G. I. Vasilyev
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  64. S. A. Voronov
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  67. G. Zampa
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  69. V. G. Zverev
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Corresponding author

Correspondence to G. A. Bazilevskaia.

Additional information

Original Russian Text © A.G. Mayorov, O. Adriani, G. Barbarino, G.A. Bazilevskaia, R. Belotti, M. Boezio, E.A. Bogomolov, L. Bonechi, M. Bongi, V.Bonvicini, S.V. Borisov, S. Bottai, A. Bruno, F. Cafagna, D. Campana, R. Carbone, P. Carlson, M. Casolino, G. Castellini, L. Consiglio, I.A. Danilchenko, M.P. De Pascale, C. De Santis, N. De Simone, V. Di Felice, A.M. Galper, W. Gillard, L.A. Grishantseva, G. Jerse, A.V. Karelin, M.D. Kheimits, S.V. Koldashov, S.A. Koldobskiy, S.Yu. Krutkov, A.N. Kvashnin, A.A. Leonov, V.V. Malakhov, V. Malvezzi, L. Marcelli, W. Menn, V.V. Mikhailov, E. Mocchiutti, A. Monaco, N. Mori, N.N. Nikonov, G. Osteria, F. Palma, P. Papini, M. Pearce, P. Picozza, S. Pizzolotto, M. Ricci, S. Ricciarini, L. Rozetto, M.F. Runtso, R. Sarkar, M. Simon, R. Sparvoli, P. Spilantini, Yu.I. Stozhkov, A. Vacchi, E. Vannuccini, G.I. Vasilyev, S.A. Voronov, J.Wu, Yu.T. Yurkin, G. Zampa, N. Zampa, V.G. Zverev, 2013, published in Izvestiya Rossiiskoi Akademii Nauk. Seriya Fizicheskaya, 2013, Vol. 77, No. 5, pp. 670–673.

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Mayorov, A.G., Adriani, O., Barbarino, G. et al. Antiprotons of galactic cosmic radiation in the PAMELA experiment. Bull. Russ. Acad. Sci. Phys. 77, 602–605 (2013). https://doi.org/10.3103/S1062873813050389

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  • DOI: https://doi.org/10.3103/S1062873813050389

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