Leptons in near earth orbit

J. Alcaraz, B. Alpat, G. Ambrosi, H. Anderhub, L. Ao, A. Arefiev, P. Azzarello, E. Babucci, L. Baldini, M. Basile, D. Barancourt, F. Barao, G. Barbier, G. Barreira, R. Battiston, R. Becker, U. Becker, L. Bellagamba, P. Béné, J. BerdugoP. Berges, B. Bertucci, A. Biland, S. Bizzaglia, S. Blasko, G. Boella, M. Boschini, M. Bourquin, L. Brocco, G. Bruni, M. Buenerd, J. D. Burger, W. J. Burger, X. D. Cai, C. Camps, P. Cannarsa, M. Capell, D. Casadei, J. Casaus, G. Castellini, C. Cecchi, Y. H. Chang, H. F. Chen, H. S. Chen, Z. G. Chen, N. A. Chernoplekov, T. H. Chiueh, Y. L. Chuang, F. Cindolo, V. Commichau, A. Contin, P. Crespo, M. Cristinziani, J. P. da Cunha, T. S. Dai, J. D. Deus, N. Dinu, L. Djambazov, I. D'Antone, Z. R. Dong, P. Emonet, J. Engelberg, F. J. Eppling, T. Eronen, G. Esposito, P. Extermann, J. Favier, E. Fiandrini, P. H. Fisher, G. Fluegge, N. Fouque, Y. Galaktionov, M. Gervasi, P. Giusti, D. Grandi, O. Grimm, W. Q. Gu, K. Hangarter, A. Hasan, V. Hermel, H. Hofer, M. A. Huang, W. Hungerford, M. Ionica, R. Ionica, M. Jongmanns, K. Karlamaa, W. Karpinski, G. Kenney, J. Kenny, W. Kim, A. Klimentov, R. Kossakowski, V. Koutsenko, M. Kraeber, G. Laborie, T. Laitinen, G. Lamanna, G. Laurenti, A. Lebedev, S. C. Lee, G. Levi, P. Levtchenko, C. L. Liu, H. T. Liu, I. Lopes, G. Lu, Y. S. Lu, K. Lübelsmeyer, D. Luckey, W. Lustermann, C. Maña, A. Margotti, F. Mayet, R. R. McNeil, B. Meillon, M. Menichelli, A. Mihul, A. Mourao, A. Mujunen, F. Palmonari, A. Papi, I. H. Park, M. Pauluzzi, F. Pauss, E. Perrin, A. Pesci, A. Pevsner, M. Pimenta, V. Plyaskin, V. Pojidaev, V. Postolache, N. Produit, P. G. Rancoita, D. Rapin, F. Raupach, D. Ren, Z. Ren, M. Ribordy, J. P. Richeux, E. Riihonen, J. Ritakari, U. Roeser, C. Roissin, R. Sagdeev, G. Sartorelli, A. Schultz von Dratzig, G. Schwering, G. Scolieri, E. S. Seo, V. Shoutko, E. Shoumilov, R. Siedling, D. Son, T. Song, M. Steuer, G. S. Sun, H. Suter, X. W. Tang, C. C. Samuel Ting, S. M. Ting, M. Tornikoski, J. Torsti, J. Trümper, J. Ulbricht, S. Urpo, I. Usoskin, E. Valtonen, J. Vandenhirtz, F. Velcea, E. Velikhov, B. Verlaat, I. Vetlitsky, F. Vezzu, J. P. Vialle, G. Viertel, D. Vité, H. von Gunten, S. Waldmeier Wicki, W. Wallraff, B. C. Wang, J. Z. Wang, Y. H. Wang, K. Wiik, C. Williams, S. X. Wu, P. C. Xia, J. L. Yan, L. G. Yan, C. G. Yang, M. Yang, S. W. Ye, P. Yeh, Z. Z. Xu, H. Y. Zhang, Z. P. Zhang, D. X. Zhao, G. Y. Zhu, W. Z. Zhu, H. L. Zhuang, A. Zichichi, B. Zimmermann

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284 Scopus citations

Abstract

The lepton spectra in the kinetic energy ranges 0.2 to 40 GeV for e- and 0.2 to 3 GeV for e+ were measured by the Alpha Magnetic Spectrometer (AMS) during space shuttle flight STS-91 at altitudes near 380 km. From the origin of the leptons two distinct spectra were observed: a higher energy spectrum and a substantial second spectrum with positrons much more abundant than electrons. Tracing leptons from the second spectra shows that most of these leptons travel for an extended period of time in the geomagnetic field and that the e+ and e- originate from two complementary geographic regions. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)10-22
Number of pages13
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume484
Issue number1-2
DOIs
StatePublished - 29 Jun 2000

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