PAMELA 测量的宇宙射线正电子能谱
高能天体物理现象
2013-12-05 v2
摘要
对宇宙辐射中正电子成分的精确测量提供了关于宇宙射线传播和我们银河系中粒子源性质的重要信息。星载实验 PAMELA 已被用于对宇宙射线正电子通量和分数进行新的测量，将先前发布的测量范围扩展至动能 300 GeV。对宇宙射线正电子能谱和分数的联合测量为约束解释模型提供了独特的工具。在 2006 年 7 月至 2009 年 12 日最近的太阳活动极小期期间，观测到了约 24500 个正电子。结果无法轻易与纯粹的次级产生相协调，可能需要来自天体物理或奇异起源的额外源。
引用
@article{arxiv.1308.0133,
title = {The cosmic-ray positron energy spectrum measured by PAMELA},
author = {PAMELA Collaboration and O. Adriani and G. C. Barbarino and G. A. Bazilevskaya and R. Bellotti and A. Bianco and M. Boezio and E. A. Bogomolov and M. Bongi and V. Bonvicini 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 C. De Donato and C. De Santis and N. De Simone and V. Di Felice and V. Formato and A. M. Galper and A. V. Karelin and S. V. Koldashov and S. A. Koldobskiy and S. Y. Krutkov and A. N. Kvashnin and A. Leonov and V. Malakhov and L. Marcelli and M. Martucci and A. G. Mayorov and W. Menn and M. Merge' and V. V. Mikhailov and E. Mocchiutti and A. Monaco and N. Mori and R. Munini and G. Osteria and F. Palma and P. Papini and M. Pearce and P. Picozza and C. Pizzolotto and M. Ricci and S. B. Ricciarini and L. Rossetto and R. Sarkar and V. Scotti and M. Simon and R. Sparvoli and P. Spillantini and S. J. Stochaj and J. C. Stockton and Y. I. Stozhkov and A. Vacchi and E. Vannuccini and G. I. Vasilyev and S. A. Voronov and Y. T. Yurkin and G. Zampa and N. Zampa and V. G. Zverev},
journal= {arXiv preprint arXiv:1308.0133},
year = {2013}
}
备注
14 pages, 4 figures, 1 table. Accepted for publication in Physical Review Letters. Corrected a typo in the flux units of Table 1