Search for cosmic ray electron-positron anisotropies with the Pamela data

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

doi:10.1088/1742-6596/409/1/012055

Using data taken by the Pamela experiment during 5 years of operation we studied the anisotropy in the arrival direction of cosmic ray electrons and positrons with energy above 40 GeV. We report on a study of anisotropy in the e± flux at different angular scales extending from 30° up to 90°, furthermore a directional analysis has been performed around the Sun direction. The observed distribution of arrival directions is consistent with the isotropic expectation at any angular scale used in this study and no significant evidence of strong anisotropies has been observed, also the analysis around the Sun direction did not show any significant excess.

Titolo:	Search for cosmic ray electron-positron anisotropies with the Pamela data
Autori:	D. Campana U. Giaccari O. Adriani G. C. Barbarino G. A. Bazilevskaya R. Bellotti A. Bianco M. Boezio E. A. Bogomolov L. Bonechi M. Bongi V. Bonvicini S. Borisov S. Bottai A. Bruno F. Cafagna R. Carbone P. Carlson M. Casolino G. Castellini M. P. De Pascale C. De Santis N. De Simone V. Di Felice FORMATO, VALERIO A. M. Galper L. Grishantseva JERSE, GIOVANNA A. V. Karelin M. D. Kheymits S. V. Koldashov S. Y. Krutkov A. N. Kvashnin A. Leonov V. Malakhov V. Malvezzi L. Marcelli M. Martucci A. G. Mayorov W. Menn V. V. Mikhailov MOCCHIUTTI, EMILIANO A. Monaco N. Mori MUNINI, RICCARDO 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 Y. I. Stozhkov VACCHI, Andrea E. Vannuccini G. Vasilyev S. A. Voronov J. Wu Y. T. Yurkin G. Zampa N. Zampa V. G. Zverev mostra contributor esterni nascondi contributor esterni
Data di pubblicazione:	2013
Abstract:	Using data taken by the Pamela experiment during 5 years of operation we studied the anisotropy in the arrival direction of cosmic ray electrons and positrons with energy above 40 GeV. We report on a study of anisotropy in the e± flux at different angular scales extending from 30° up to 90°, furthermore a directional analysis has been performed around the Sun direction. The observed distribution of arrival directions is consistent with the isotropic expectation at any angular scale used in this study and no significant evidence of strong anisotropies has been observed, also the analysis around the Sun direction did not show any significant excess.
Handle:	http://hdl.handle.net/11368/2719387
Appare nelle tipologie:	4.1 Contributo in Atti Convegno (Proceeding)

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