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High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station
Open accessAbstract
A precision measurement by AMS of the positron fraction in primary cosmic rays in the energy range from 0.5 to 500 GeV based on 10.9 million positron and electron events is presented. This measurement extends the energy range of our previous observation and increases its precision. The new results show, for the first time, that above ∼200 GeV the positron fraction no longer exhibits an increase with energy.
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Cites
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Allison, J., Amako, K., Apostolakis, J., Araujo, H., Arce Dubois, P., Asai, M., Barrand, G., Capra, R., Chauvie, S., Chytracek, R., et al. (2006) · IEEE Transactions on Nuclear Science · doi:10.1109/tns.2006.869826 · Cited by 6,946
Boosted decision trees as an alternative to artificial neural networks for particle identification
Roe, B. P., Yang, H.-J., Zhu, J., Liu, Y., Stancu, I., & McGregor, G. (2005) · Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment · doi:10.1016/j.nima.2004.12.018 · Cited by 534
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Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth
Abeysekara, A. U., Albert, A., Alfaro, R., Alvarez, C., Álvarez, J. D., Arceo, R., Arteaga-Velázquez, J. C., Avila Rojas, D., Ayala Solares, H. A., Barber, A. S., et al. (2017) · Science · doi:10.1126/science.aan4880 · Cited by 522
Self-citationGalactic Cosmic Rays Throughout the Heliosphere and in the Very Local Interstellar Medium
Rankin, J. S., Bindi, V., Bykov, A. M., Cummings, A. C., Della Torre, S., Florinski, V., Heber, B., Potgieter, M. S., Stone, E. C., & Zhang, M. (2022) · Space Science Reviews · doi:10.1007/s11214-022-00912-4 · Cited by 53
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Metadata
- Authors
- Accardo, L., Aguilar, M., Aisa, D., Alpat, B., Alvino, A., Ambrosi, G., Andeen, K., Arruda, L., Attig, N., Azzarello, P., Bachlechner, A., Barao, F., Barrau, A., Barrin, L., Bartoloni, A., Basara, L., Battarbee, M., Battiston, R., Bazo, J., Becker, U., Behlmann, M., Beischer, B., Berdugo, J., Bertucci, B., Bigongiari, G., Bindi, V., Bizzaglia, S., Bizzarri, M., Boella, G., de Boer, W., Bollweg, K., Bonnivard, V., Borgia, B., Borsini, S., Boschini, M. J., Bourquin, M., Burger, J., Cadoux, F., Cai, X. D., Capell, M., Caroff, S., Carosi, G., Casaus, J., Cascioli, V., Castellini, G., Cernuda, I., Cerreta, D., Cervelli, F., Chae, M. J., Chang, Y. H., Chen, A. I., Chen, H., Cheng, G. M., Chen, H. S., Cheng, L., Chikanian, A., Chou, H. Y., Choumilov, E., Choutko, V., Chung, C. H., Cindolo, F., Clark, C., Clavero, R., Coignet, G., Consolandi, C., Contin, A., Corti, C., Coste, B., Cui, Z., Dai, M., Delgado, C., Della Torre, S., Demirköz, M. B., Derome, L., Di Falco, S., Di Masso, L., Dimiccoli, F., Díaz, C., von Doetinchem, P., Du, W. J., Duranti, M., D’Urso, D., Eline, A., Eppling, F. J., Eronen, T., Fan, Y. Y., Farnesini, L., Feng, J., Fiandrini, E., Fiasson, A., Finch, E., Fisher, P., Galaktionov, Y., Gallucci, G., García, B., García-López, R., Gast, H., Gebauer, I., Gervasi, M., Ghelfi, A., Gillard, W., Giovacchini, F., Goglov, P., Gong, J., Goy, C., Grabski, V., Grandi, D., Graziani, M., Guandalini, C., Guerri, I., Guo, K. H., Haas, D., Habiby, M., Haino, S., Han, K. C., He, Z. H., Heil, M., Henning, R., Hoffman, J., Hsieh, T. H., Huang, Z. C., Huh, C., Incagli, M., Ionica, M., Jang, W. Y., Jinchi, H., Kanishev, K., Kim, G. N., Kim, K. S., Kirn, T., Kossakowski, R., Kounina, O., Kounine, A., Koutsenko, V., Krafczyk, M. S., Kunz, S., La Vacca, G., Laudi, E., Laurenti, G., Lazzizzera, I., Lebedev, A., Lee, H. T., Lee, S. C., Leluc, C., Levi, G., Li, H. L., Li, J. Q., Li, Q., Li, Q., Li, T. X., Li, W., Li, Y., Li, Z. H., Li, Z. Y., Lim, S., Lin, C. H., Lipari, P., Lippert, T., Liu, D., Liu, H., Lolli, M., Lomtadze, T., Lu, M. J., Lu, Y. S., Luebelsmeyer, K., Luo, F., Luo, J. Z., Lv, S. S., Majka, R., Malinin, A., Mañá, C., Marín, J., Martin, T., Martínez, G., Masi, N., Massera, F., Maurin, D., Menchaca-Rocha, A., Meng, Q., Mo, D. C., Monreal, B., Morescalchi, L., Mott, P., Müller, M., Ni, J. Q., Nikonov, N., Nozzoli, F., Nunes, P., Obermeier, A., Oliva, A., Orcinha, M., Palmonari, F., Palomares, C., Paniccia, M., Papi, A., Pauluzzi, M., Pedreschi, E., Pensotti, S., Pereira, R., Pilastrini, R., Pilo, F., Piluso, A., Pizzolotto, C., Plyaskin, V., Pohl, M., Poireau, V., Postaci, E., Putze, A., Quadrani, L., Qi, X. M., Rancoita, P. G., Rapin, D., Ricol, J. S., Rodríguez, I., Rosier-Lees, S., Rossi, L., Rozhkov, A., Rozza, D., Rybka, G., Sagdeev, R., Sandweiss, J., Saouter, P., Sbarra, C., Schael, S., Schmidt, S. M., Schuckardt, D., Schulz von Dratzig, A., Schwering, G., Scolieri, G., Seo, E. S., Shan, B. S., Shan, Y. H., Shi, J. Y., Shi, X. Y., Shi, Y. M., Siedenburg, T., Son, D., Spada, F., Spinella, F., Sun, W., Sun, W. H., Tacconi, M., Tang, C. P., Tang, X. W., Tang, Z. C., Tao, L., Tescaro, D., Ting, S. C. C., Ting, S. M., Tomassetti, N., Torsti, J., Türkoğlu, C., Urban, T., Vagelli, V., Valente, E., Vannini, C., Valtonen, E., Vaurynovich, S., Vecchi, M., Velasco, M., Vialle, J. P., Vitale, V., Volpini, G., Wang, L. Q., Wang, Q. L., Wang, R. S., Wang, X., Wang, Z. X., Weng, Z. L., Whitman, K., Wienkenhöver, J., Wu, H., Wu, K. Y., Xia, X., Xie, M., Xie, S., Xiong, R. Q., Xin, G. M., Xu, N. S., Xu, W., Yan, Q., Yang, J., Yang, M., Ye, Q. H., Yi, H., Yu, Y. J., Yu, Z. Q., Zeissler, S., Zhang, J. H., Zhang, M. T., Zhang, X. B., Zhang, Z., Zheng, Z. M., Zhou, F., Zhuang, H. L., Zhukov, V., Zichichi, A., Zimmermann, N., Zuccon, P., Zurbach, C., & (AMS Collaboration)
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2014-09-18
- Volume
- 113
- Issue
- 12
- Pages
- 121101-121101
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2084194847
- Cited by
- 514
- References
- 2
- FWCI
- 36.78
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Accardo, L., Aguilar, M., Aisa, D., Alpat, B., Alvino, A., Ambrosi, G., Andeen, K., Arruda, L., Attig, N., Azzarello, P., Bachlechner, A., Barao, F., Barrau, A., Barrin, L., Bartoloni, A., Basara, L., Battarbee, M., Battiston, R., Bazo, J., . . . (AMS Collaboration). (2014). High Statistics Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5–500 GeV with the Alpha Magnetic Spectrometer on the International Space Station. Physical Review Letters. https://doi.org/10.1103/physrevlett.113.121101
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