Cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV

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

doi:10.1103/PhysRevLett.106.201101

Cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV

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

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Abstract

Precision measurements of the electron component in the cosmic radiation provide important information about the origin and propagation of cosmic rays in the Galaxy. Here we present new results regarding negatively charged electrons between 1 and 625 GeV performed by the satellite-borne experiment PAMELA. This is the first time that cosmic-ray e^- have been identified above 50 GeV. The electron spectrum can be described with a single power-law energy dependence with spectral index -3.18±0.05 above the energy region influenced by the solar wind (>30GeV). No significant spectral features are observed and the data can be interpreted in terms of conventional diffusive propagation models. However, the data are also consistent with models including new cosmic-ray sources that could explain the rise in the positron fraction.

Original language	English
Article number	201101
Journal	Physical Review Letters
Volume	106
Issue number	20
DOIs	https://doi.org/10.1103/PhysRevLett.106.201101
State	Published - 19 May 2011
Externally published	Yes

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10.1103/PhysRevLett.106.201101

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Adriani, O., Barbarino, G. C., Bazilevskaya, G. A., Bellotti, R., Boezio, M., Bogomolov, E. A., Bongi, M., Bonvicini, V., Borisov, S., Bottai, S., Bruno, A., Cafagna, F., Campana, D., Carbone, R., Carlson, P., Casolino, M., Castellini, G., Consiglio, L., De Pascale, M. P., ... Zverev, V. G. (2011). Cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV. Physical Review Letters, 106(20), Article 201101. https://doi.org/10.1103/PhysRevLett.106.201101

@article{6d5d0c6b95b94d5c97ae91deb0d89f93,

title = "Cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV",

abstract = "Precision measurements of the electron component in the cosmic radiation provide important information about the origin and propagation of cosmic rays in the Galaxy. Here we present new results regarding negatively charged electrons between 1 and 625 GeV performed by the satellite-borne experiment PAMELA. This is the first time that cosmic-ray e- have been identified above 50 GeV. The electron spectrum can be described with a single power-law energy dependence with spectral index -3.18±0.05 above the energy region influenced by the solar wind (>30GeV). No significant spectral features are observed and the data can be interpreted in terms of conventional diffusive propagation models. However, the data are also consistent with models including new cosmic-ray sources that could explain the rise in the positron fraction.",

author = "O. Adriani and Barbarino, {G. C.} and Bazilevskaya, {G. A.} and R. Bellotti and M. Boezio and Bogomolov, {E. A.} and M. Bongi and V. Bonvicini and S. Borisov and S. Bottai and A. Bruno and F. Cafagna and D. Campana and R. Carbone and P. Carlson and M. Casolino and G. Castellini and L. Consiglio and {De Pascale}, {M. P.} and {De Santis}, C. and {De Simone}, N. and {Di Felice}, V. and Galper, {A. M.} and W. Gillard and L. Grishantseva and G. Jerse and Karelin, {A. V.} and Koldashov, {S. V.} and Krutkov, {S. Y.} and Kvashnin, {A. N.} and A. Leonov and V. Malakhov and V. Malvezzi and L. Marcelli and Mayorov, {A. G.} and W. Menn and Mikhailov, {V. V.} and E. Mocchiutti and A. Monaco and N. Mori and N. Nikonov and G. Osteria and F. Palma and P. Papini and M. Pearce and P. Picozza and C. Pizzolotto and M. Ricci and Ricciarini, {S. B.} and L. Rossetto and R. Sarkar and M. Simon and R. Sparvoli and P. Spillantini and Stochaj, {S. J.} and Stockton, {J. C.} and Stozhkov, {Y. I.} and A. Vacchi and E. Vannuccini and G. Vasilyev and Voronov, {S. A.} and J. Wu and Yurkin, {Y. T.} and G. Zampa and N. Zampa and Zverev, {V. G.}",

year = "2011",

month = may,

day = "19",

doi = "10.1103/PhysRevLett.106.201101",

language = "אנגלית",

volume = "106",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "20",

}

Adriani, O, Barbarino, GC, Bazilevskaya, GA, Bellotti, R, Boezio, M, Bogomolov, EA, Bongi, M, Bonvicini, V, Borisov, S, Bottai, S, Bruno, A, Cafagna, F, Campana, D, Carbone, R, Carlson, P, Casolino, M, Castellini, G, Consiglio, L, De Pascale, MP, De Santis, C, De Simone, N, Di Felice, V, Galper, AM, Gillard, W, Grishantseva, L, Jerse, G, Karelin, AV, Koldashov, SV, Krutkov, SY, Kvashnin, AN, Leonov, A, Malakhov, V, Malvezzi, V, Marcelli, L, Mayorov, AG, Menn, W, Mikhailov, VV, Mocchiutti, E, Monaco, A, Mori, N, Nikonov, N, Osteria, G, Palma, F, Papini, P, Pearce, M, Picozza, P, Pizzolotto, C, Ricci, M, Ricciarini, SB, Rossetto, L, Sarkar, R, Simon, M, Sparvoli, R, Spillantini, P, Stochaj, SJ, Stockton, JC, Stozhkov, YI, Vacchi, A, Vannuccini, E, Vasilyev, G, Voronov, SA, Wu, J, Yurkin, YT, Zampa, G, Zampa, N & Zverev, VG 2011, 'Cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV', Physical Review Letters, vol. 106, no. 20, 201101. https://doi.org/10.1103/PhysRevLett.106.201101

TY - JOUR

T1 - Cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV

AU - Adriani, O.

AU - Barbarino, G. C.

AU - Bazilevskaya, G. A.

AU - Bellotti, R.

AU - Boezio, M.

AU - Bogomolov, E. A.

AU - Bongi, M.

AU - Bonvicini, V.

AU - Borisov, S.

AU - Bottai, S.

AU - Bruno, A.

AU - Cafagna, F.

AU - Campana, D.

AU - Carbone, R.

AU - Carlson, P.

AU - Casolino, M.

AU - Castellini, G.

AU - Consiglio, L.

AU - De Pascale, M. P.

AU - De Santis, C.

AU - De Simone, N.

AU - Di Felice, V.

AU - Galper, A. M.

AU - Gillard, W.

AU - Grishantseva, L.

AU - Jerse, G.

AU - Karelin, A. V.

AU - Koldashov, S. V.

AU - Krutkov, S. Y.

AU - Kvashnin, A. N.

AU - Leonov, A.

AU - Malakhov, V.

AU - Malvezzi, V.

AU - Marcelli, L.

AU - Mayorov, A. G.

AU - Menn, W.

AU - Mikhailov, V. V.

AU - Mocchiutti, E.

AU - Monaco, A.

AU - Mori, N.

AU - Nikonov, N.

AU - Osteria, G.

AU - Palma, F.

AU - Papini, P.

AU - Pearce, M.

AU - Picozza, P.

AU - Pizzolotto, C.

AU - Ricci, M.

AU - Ricciarini, S. B.

AU - Rossetto, L.

AU - Sarkar, R.

AU - Simon, M.

AU - Sparvoli, R.

AU - Spillantini, P.

AU - Stochaj, S. J.

AU - Stockton, J. C.

AU - Stozhkov, Y. I.

AU - Vacchi, A.

AU - Vannuccini, E.

AU - Vasilyev, G.

AU - Voronov, S. A.

AU - Wu, J.

AU - Yurkin, Y. T.

AU - Zampa, G.

AU - Zampa, N.

AU - Zverev, V. G.

PY - 2011/5/19

Y1 - 2011/5/19

N2 - Precision measurements of the electron component in the cosmic radiation provide important information about the origin and propagation of cosmic rays in the Galaxy. Here we present new results regarding negatively charged electrons between 1 and 625 GeV performed by the satellite-borne experiment PAMELA. This is the first time that cosmic-ray e- have been identified above 50 GeV. The electron spectrum can be described with a single power-law energy dependence with spectral index -3.18±0.05 above the energy region influenced by the solar wind (>30GeV). No significant spectral features are observed and the data can be interpreted in terms of conventional diffusive propagation models. However, the data are also consistent with models including new cosmic-ray sources that could explain the rise in the positron fraction.

AB - Precision measurements of the electron component in the cosmic radiation provide important information about the origin and propagation of cosmic rays in the Galaxy. Here we present new results regarding negatively charged electrons between 1 and 625 GeV performed by the satellite-borne experiment PAMELA. This is the first time that cosmic-ray e- have been identified above 50 GeV. The electron spectrum can be described with a single power-law energy dependence with spectral index -3.18±0.05 above the energy region influenced by the solar wind (>30GeV). No significant spectral features are observed and the data can be interpreted in terms of conventional diffusive propagation models. However, the data are also consistent with models including new cosmic-ray sources that could explain the rise in the positron fraction.

UR - http://www.scopus.com/inward/record.url?scp=79960645638&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.106.201101

DO - 10.1103/PhysRevLett.106.201101

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AN - SCOPUS:79960645638

SN - 0031-9007

VL - 106

JO - Physical Review Letters

JF - Physical Review Letters

IS - 20

M1 - 201101

ER -

Cosmic-ray electron flux measured by the PAMELA experiment between 1 and 625 GeV

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