An anomalous positron abundance in cosmic rays with energies 1.5–100 GeV

Moskalenko, I. V. & Strong, A. W. Production and propagation of cosmic-ray positrons and electrons. Astrophys. J. 493, 694–707 (1998)

Atoian, A. M., Aharonian, F. A. & Volk, H. J. Electrons and positrons in the galactic cosmic rays. Phys. Rev. D 52, 3265–3275 (1995)

Heinz, S. & Sunyaev, R. Cosmic rays from microquasars: A narrow component in the CR spectrum. Astron. Astrophys. 390, 751–766 (2002)

Jungman, G., Kamionkowski, M. & Griest, K. Supersymmetric dark matter. Phys. Rep. 267, 195–373 (1996)

Golden, R. L. et al. Measurement of the positron to electron ratio in the cosmic rays above 5 GeV. Astrophys. J. 457, L103–L106 (1996)

Barwick, S. W. et al. Measurements of the cosmic-ray positron fraction from 1 to 50 GeV. Astrophys. J. 482, L191–L194 (1997)

Aguilar, M. et al. Cosmic-ray positron fraction measurement from 1 to 30 GeV with AMS-01. Phys. Lett. B 646, 145–154 (2007)

Chang, J. et al. An excess of cosmic ray electrons at energies of 300–800 GeV. Nature 456, 362–365 (2008)

Picozza, P. et al. PAMELA — A payload for antimatter matter exploration and light-nuclei astrophysics. Astropart. Phys. 27, 296–315 (2007)

Delahaye, T. et al. Galactic secondary positron flux at the Earth. Preprint at 〈 http://arXiv.org/abs/0809.5268v3 〉 (2008)

Boezio, M. et al. The cosmic-ray electron and positron spectra measured at 1 AU during solar minimum activity. Astrophys. J. 532, 653–669 (2000)

Alcaraz, J. et al. Leptons in near earth orbit. Phys. Lett. B 484, 10–22 (2000)

Clem, J. & Evenson, P. in Proc. 30th Intl Cosmic Ray Conf. Vol. 1 (eds Caballero, R. et al.) 477–480 (Universidad Nacional Autónoma de México, 2008)

Aharonian, F. et al. First detection of a VHE gamma-ray spectral maximum from a cosmic source: HESS discovery of the Vela X nebula. Astron. Astrophys. 448, L43–L47 (2006)

Berezhko, E. G., Ksenofontov, L. T. & Völk, H. J. Emission of SN 1006 produced by accelerated cosmic rays. Astron. Astrophys. 395, 943–953 (2002)

Serpico, P. On the possible causes of a rise with energy of the cosmic ray positron fraction. Phys. Rev. D 79, 021302 (2009)

Komatsu, E. et al. Five-year Wilkinson microwave anisotropy probe observations: Cosmological interpretation. Astrophys. J. Suppl. Ser. 180, 330–376 (2009)

Servant, G. & Tait, T. M. P. Is the lightest Kaluza-Klein particle a viable dark matter candidate? Nucl. Phys. B 650, 391–419 (2003)

Cheng, H. C., Feng, J. L. & Matchev, K. T. Kaluza-Klein dark matter. Phys. Rev. Lett. 89, 211301 (2002)

Bertone, G., Hooper, D. & Silk, J. Particle dark matter: Evidence, candidates and constraints. Phys. Rep. 405, 279–390 (2005)

Adriani, O. et al. A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation. Phys. Rev. Lett. 102, 051101 (2009)

Cholis, I., Dobler, G., Finkbeiner, D. P., Goodenough, L. & Weiner, N. The case for a 700+ GeV WIMP: Cosmic ray spectra from ATIC and PAMELA. Preprint at 〈 http://arXiv.org/abs/0811.3641v1 〉 (2008)

Bergström, L., Bringmann, T. & Edsjö, J. New positron spectral features from supersymmetric dark matter: A way to explain the PAMELA data? Phys. Rev. D 78, 103520 (2008)

Donato, F., Maurin, D., Brun, P., Delahaye, T. & Salati, P. Constraints on WIMP dark matter from the high energy PAMELA data. Phys. Rev. Lett. 102, 071301 (2009)

Grajek, P., Kane, G., Phalen, D. J., Pierce, A. & Watson, A. Is the PAMELA positron excess winos? Preprint at 〈 http://arXiv.org/abs/0812.4555v1 〉 (2008)

Grimani, C. Pulsar birthrate set by cosmic-ray positron observations. Astron. Astrophys. 418, 649–653 (2004)

Büsching, I., de Jager, O. C., Potgieter, M. S. & Venter, C. A cosmic-ray positron anisotropy due to two middle-aged, nearby pulsars? Astrophys. J. 78, L39–L42 (2008)

Yuksel, H., Kistler, M. D. & Stanev, T. TeV gamma rays from Geminga and the origin of the GeV positron excess. Preprint at 〈 http://arXiv.org/abs/0810.2784v2 〉 (2008)

Hooper, D., Blasi, P. & Serpico, P. D. Pulsars as the sources of high energy cosmic ray positrons. J. Cosmol. Astropart. Phys. 01, 025 (2009)

Beatty, J. J. et al. New measurement of the cosmic-ray positron fraction from 5 to 15GeV. Phys. Rev. Lett. 93, 241102 (2004)