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Towards Understanding the Origin of Cosmic-Ray Positrons

dc.contributor.authorAguilar, M.
dc.contributor.authorAli Cavasonza, L.
dc.contributor.authorAmbrosi, G.
dc.contributor.authorArruda, L.
dc.contributor.authorAttig, N.
dc.contributor.authorAzzarello, P.
dc.contributor.authorBachlechner, A.
dc.contributor.authorBarao, F.
dc.contributor.authorBarrau, A.
dc.contributor.authorBarrin, L.
dc.contributor.authorBartoloni, A.
dc.contributor.authorBasara, L.
dc.contributor.authorBaşeğmez-du Pree, S.
dc.contributor.authorBattiston, R.
dc.contributor.authorBeischer, B.
dc.contributor.authorBerdugo, J.
dc.contributor.authorBertucci, B.
dc.contributor.authorBindi, V.
dc.contributor.authorde Boer, W.
dc.contributor.authorBollweg, K.
dc.contributor.authorBorgia, B.
dc.contributor.authorBoschini, M. J.
dc.contributor.authorBourquin, M.
dc.contributor.authorBueno, E. F.
dc.contributor.authorCaroff, S.
dc.contributor.authorCasaus, J.
dc.contributor.authorCastellini, G.
dc.contributor.authorCervelli, F.
dc.contributor.authorChang, Y. H.
dc.contributor.authorChen, G. M.
dc.contributor.authorChen, H. S.
dc.contributor.authorChen, Y.
dc.contributor.authorCheng, L.
dc.contributor.authorChou, H. Y.
dc.contributor.authorChung, C. H.
dc.contributor.authorClark, C.
dc.contributor.authorCoignet, G.
dc.contributor.authorConsolandi, C.
dc.contributor.authorContin, A.
dc.contributor.authorCorti, C.
dc.contributor.authorCrispoltoni, M.
dc.contributor.authorCui, Z.
dc.contributor.authorDai, Y. M.
dc.contributor.authorDatta, A.
dc.contributor.authorDelgado, C.
dc.contributor.authorDella Torre, S.
dc.contributor.authorDemirköz, M. B.
dc.contributor.authorDerome, L.
dc.contributor.authorDi Falco, S.
dc.contributor.authorDimiccoli, F.
dc.contributor.authorDíaz, C.
dc.contributor.authorvon Doetinchem, P.
dc.contributor.authorDong, F.
dc.contributor.authorDonnini, F.
dc.contributor.authorDuranti, M.
dc.contributor.authorEronen, T.
dc.contributor.authorFeng, J.
dc.contributor.authorFiandrini, E.
dc.contributor.authorFormato, V.
dc.contributor.authorGarcía-López, R. J.
dc.contributor.authorGargiulo, C.
dc.contributor.authorGast, H.
dc.contributor.authorGebauer, I.
dc.contributor.authorGervasi, M.
dc.contributor.authorGiovacchini, F.
dc.contributor.authorGómez-Coral, D. M.
dc.contributor.authorGong, J.
dc.contributor.authorGoy, C.
dc.contributor.authorGrabski, V.
dc.contributor.authorGrandi, D.
dc.contributor.authorGraziani, M.
dc.contributor.authorGuo, K. H.
dc.contributor.authorHaino, S.
dc.contributor.authorHan, K. C.
dc.contributor.authorHe, Z. H.
dc.contributor.authorHuang, H.
dc.contributor.authorHuang, Z. C.
dc.contributor.authorIncagli, M.
dc.contributor.authorJinchi, H.
dc.contributor.authorKanishev, K.
dc.contributor.authorKhiali, B.
dc.contributor.authorKirn, Th.
dc.contributor.authorKonak, C.
dc.contributor.authorLa Vacca, G.
dc.contributor.authorLaudi, E.
dc.contributor.authorLaurenti, G.
dc.contributor.authorLazzizzera, I.
dc.contributor.authorLee, H. T.
dc.contributor.authorLee, S. C.
dc.contributor.authorLeluc, C.
dc.contributor.authorLi, J. Q.
dc.contributor.authorLi, Q.
dc.contributor.authorLi, T. X.
dc.contributor.authorLi, Z. H.
dc.contributor.authorLight, C.
dc.contributor.authorLin, C. H.
dc.contributor.authorLippert, T.
dc.contributor.authorLiu, Z.
dc.contributor.authorLu, S. Q.
dc.contributor.authorLu, Y. S.
dc.contributor.authorLuebelsmeyer, K.
dc.contributor.authorLuo, F.
dc.contributor.authorLuo, J. Z.
dc.contributor.authorLuo, Xi
dc.contributor.authorLyu, S. S.
dc.contributor.authorMachate, F.
dc.contributor.authorMañá, C.
dc.contributor.authorMarín, J.
dc.contributor.authorMartin, T.
dc.contributor.authorMartínez, G.
dc.contributor.authorMasi, N.
dc.contributor.authorMaurin, D.
dc.contributor.authorMenchaca-Rocha, A.
dc.contributor.authorMeng, Q.
dc.contributor.authorMo, D. C.
dc.contributor.authorMolero, M.
dc.contributor.authorMott, P.
dc.contributor.authorMussolin, L.
dc.contributor.authorNelson, T.
dc.contributor.authorNi, J. Q.
dc.contributor.authorNikonov, N.
dc.contributor.authorNozzoli, F.
dc.contributor.authorOliva, A.
dc.contributor.authorOrcinha, M.
dc.contributor.authorPalermo, M.
dc.contributor.authorPalmonari, F.
dc.contributor.authorPaniccia, M.
dc.contributor.authorPauluzzi, M.
dc.contributor.authorPensotti, S.
dc.contributor.authorPerrina, C.
dc.contributor.authorPicot-Clemente, N.
dc.contributor.authorPohl, M.
dc.contributor.authorPoireau, V.
dc.contributor.authorPopkow, A.
dc.contributor.authorQuadrani, L.
dc.contributor.authorQi, X. M.
dc.contributor.authorQu, Z. Y.
dc.contributor.authorRancoita, P. G.
dc.contributor.authorRapin, D.
dc.contributor.authorConde, A. Reina
dc.contributor.authorRosier-Lees, S.
dc.contributor.authorRozhkov, A.
dc.contributor.authorRozza, D.
dc.contributor.authorSagdeev, R.
dc.contributor.authorSolano, C.
dc.contributor.authorSchael, S.
dc.contributor.authorSchmidt, S. M.
dc.contributor.authorSchulz von Dratzig, A.
dc.contributor.authorSchwering, G.
dc.contributor.authorSeo, E. S.
dc.contributor.authorShan, B. S.
dc.contributor.authorShi, J. Y.
dc.contributor.authorSiedenburg, T.
dc.contributor.authorSong, J. W.
dc.contributor.authorSun, Z. T.
dc.contributor.authorTacconi, M.
dc.contributor.authorTang, X. W.
dc.contributor.authorTang, Z. C.
dc.contributor.authorTian, J.
dc.contributor.authorTomassetti, N.
dc.contributor.authorTorsti, J.
dc.contributor.authorUrban, T.
dc.contributor.authorVagelli, V.
dc.contributor.authorValente, E.
dc.contributor.authorValtonen, E.
dc.contributor.authorVázquez Acosta, M.
dc.contributor.authorVecchi, M.
dc.contributor.authorVelasco, M.
dc.contributor.authorVialle, J. P.
dc.contributor.authorVizán, J.
dc.contributor.authorWang, L. Q.
dc.contributor.authorWang, N. H.
dc.contributor.authorWang, Q. L.
dc.contributor.authorWang, X. Q.
dc.contributor.authorWang, Z. X.
dc.contributor.authorWei, J.
dc.contributor.authorWeng, Z. L.
dc.contributor.authorWu, H.
dc.contributor.authorXiong, R. Q.
dc.contributor.authorXu, W.
dc.contributor.authorYang, Y.
dc.contributor.authorYi, H.
dc.contributor.authorYu, Y. J.
dc.contributor.authorYu, Z. Q.
dc.contributor.authorZannoni, M.
dc.contributor.authorZeissler, S.
dc.contributor.authorZhang, C.
dc.contributor.authorZhang, F.
dc.contributor.authorZhang, J. H.
dc.contributor.authorZhang, Z.
dc.contributor.authorZhao, F.
dc.contributor.authorZheng, Z. M.
dc.contributor.authorZhuang, H. L.
dc.contributor.authorZhukov, V.
dc.contributor.authorZichichi, A.
dc.contributor.authorZimmermann, N.
dc.contributor.authorZuccon, P.
dc.contributor.authorBecker, Ulrich J
dc.contributor.authorBehlmann, Matthew Daniel
dc.contributor.authorBurger, Joseph D
dc.contributor.authorCai, Xudong
dc.contributor.authorCapell, Michael H
dc.contributor.authorChoutko, Vitali
dc.contributor.authorDadzie, K.
dc.contributor.authorEgorov, Alexander
dc.contributor.authorEline, Alexandre
dc.contributor.authorFisher, Peter H
dc.contributor.authorGalaktionov, Y.
dc.contributor.authorHeil, Melanie
dc.contributor.authorHsieh, Timothy Hwa-wei
dc.contributor.authorJia, Yi
dc.contributor.authorKounina, Olga
dc.contributor.authorKounine, Andrei
dc.contributor.authorKoutsenko, Vladimir
dc.contributor.authorKulemzin, Alexander
dc.contributor.authorLebedev, Alexei
dc.contributor.authorLiu, F. Z.
dc.contributor.authorLiu, Hu
dc.contributor.authorPashnin, A.
dc.contributor.authorPhan, Huy Duc
dc.contributor.authorPlyaskin, Vasily
dc.contributor.authorQin, Xiaoting
dc.contributor.authorTing, Samuel
dc.contributor.authorTing, Steve M
dc.contributor.authorWang, X.
dc.contributor.authorYan, Qi
dc.date.accessioned2019-02-14T18:52:16Z
dc.date.available2019-02-14T18:52:16Z
dc.date.issued2019-01
dc.date.submitted2018-12
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.urihttp://hdl.handle.net/1721.1/120457
dc.description.abstractPrecision measurements of cosmic ray positrons are presented up to 1 TeV based on 1.9 million positrons collected by the Alpha Magnetic Spectrometer on the International Space Station. The positron flux exhibits complex energy dependence. Its distinctive properties are (a) a significant excess starting from 25.2±1.8  GeV compared to the lower-energy, power-law trend, (b) a sharp dropoff above 284₋₆₄⁺⁹¹  GeV, (c) in the entire energy range the positron flux is well described by the sum of a term associated with the positrons produced in the collision of cosmic rays, which dominates at low energies, and a new source term of positrons, which dominates at high energies, and (d) a finite energy cutoff of the source term of E[superscript s] = 810₋₁₈₀⁺³¹⁰  GeV is established with a significance of more than 4σ. These experimental data on cosmic ray positrons show that, at high energies, they predominantly originate either from dark matter annihilation or from other astrophysical sources.en_US
dc.publisherAmerican Physical Societyen_US
dc.relation.isversionofhttp://dx.doi.org/10.1103/PhysRevLett.122.041102en_US
dc.rightsCreative Commons Attributionen_US
dc.rights.urihttp://creativecommons.org/licenses/by/3.0en_US
dc.sourceAmerican Physical Societyen_US
dc.titleTowards Understanding the Origin of Cosmic-Ray Positronsen_US
dc.typeArticleen_US
dc.identifier.citationAguilar, M. et al. "Towards Understanding the Origin of Cosmic-Ray Positrons." Physics Review Letters 122, 4 (February 2019): 041102en_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Laboratory for Nuclear Scienceen_US
dc.contributor.mitauthorBecker, Ulrich J
dc.contributor.mitauthorBehlmann, Matthew Daniel
dc.contributor.mitauthorBurger, Joseph D
dc.contributor.mitauthorCai, Xudong
dc.contributor.mitauthorCapell, Michael H
dc.contributor.mitauthorChoutko, Vitali
dc.contributor.mitauthorDadzie, K.
dc.contributor.mitauthorEgorov, Alexander
dc.contributor.mitauthorEline, Alexandre
dc.contributor.mitauthorFisher, Peter H
dc.contributor.mitauthorGalaktionov, Y.
dc.contributor.mitauthorHeil, Melanie
dc.contributor.mitauthorHsieh, Timothy Hwa-wei
dc.contributor.mitauthorJia, Yi
dc.contributor.mitauthorKounina, Olga
dc.contributor.mitauthorKounine, Andrei
dc.contributor.mitauthorKoutsenko, Vladimir
dc.contributor.mitauthorKulemzin, Alexander
dc.contributor.mitauthorLebedev, Alexei
dc.contributor.mitauthorLiu, F. Z.
dc.contributor.mitauthorLiu, Hu
dc.contributor.mitauthorPashnin, A.
dc.contributor.mitauthorPhan, Huy Duc
dc.contributor.mitauthorPlyaskin, Vasily
dc.contributor.mitauthorQin, Xiaoting
dc.contributor.mitauthorTing, Samuel
dc.contributor.mitauthorTing, Steve M
dc.contributor.mitauthorWang, X.
dc.contributor.mitauthorYan, Qi
dc.contributor.mitauthorZhang, Z.
dc.relation.journalPhysical Review Lettersen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dc.date.updated2019-01-29T18:00:53Z
dc.language.rfc3066en
dspace.orderedauthorsAguilar, M.; Ali Cavasonza, L.; Ambrosi, G.; Arruda, L.; Attig, N.; Azzarello, P.; Bachlechner, A.; Barao, F.; Barrau, A.; Barrin, L.; Bartoloni, A.; Basara, L.; Başeğmez-du Pree, S.; Battiston, R.; Becker, U.; Behlmann, M.; Beischer, B.; Berdugo, J.; Bertucci, B.; Bindi, V.; de Boer, W.; Bollweg, K.; Borgia, B.; Boschini, M. J.; Bourquin, M.; Bueno, E. F.; Burger, J.; Burger, W. J.; Cai, X. D.; Capell, M.; Caroff, S.; Casaus, J.; Castellini, G.; Cervelli, F.; Chang, Y. H.; Chen, G. M.; Chen, H. S.; Chen, Y.; Cheng, L.; Chou, H. Y.; Choutko, V.; Chung, C. H.; Clark, C.; Coignet, G.; Consolandi, C.; Contin, A.; Corti, C.; Crispoltoni, M.; Cui, Z.; Dadzie, K.; Dai, Y. M.; Datta, A.; Delgado, C.; Della Torre, S.; Demirköz, M. B.; Derome, L.; Di Falco, S.; Dimiccoli, F.; Díaz, C.; von Doetinchem, P.; Dong, F.; Donnini, F.; Duranti, M.; Egorov, A.; Eline, A.; Eronen, T.; Feng, J.; Fiandrini, E.; Fisher, P.; Formato, V.; Galaktionov, Y.; García-López, R. J.; Gargiulo, C.; Gast, H.; Gebauer, I.; Gervasi, M.; Giovacchini, F.; Gómez-Coral, D. M.; Gong, J.; Goy, C.; Grabski, V.; Grandi, D.; Graziani, M.; Guo, K. H.; Haino, S.; Han, K. C.; He, Z. H.; Heil, M.; Hsieh, T. H.; Huang, H.; Huang, Z. C.; Incagli, M.; Jia, Yi; Jinchi, H.; Kanishev, K.; Khiali, B.; Kirn, Th.; Konak, C.; Kounina, O.; Kounine, A.; Koutsenko, V.; Kulemzin, A.; La Vacca, G.; Laudi, E.; Laurenti, G.; Lazzizzera, I.; Lebedev, A.; Lee, H. T.; Lee, S. C.; Leluc, C.; Li, J. Q.; Li, Q.; Li, T. X.; Li, Z. H.; Light, C.; Lin, C. H.; Lippert, T.; Liu, F. Z.; Liu, Hu; Liu, Z.; Lu, S. Q.; Lu, Y. S.; Luebelsmeyer, K.; Luo, F.; Luo, J. Z.; Luo, Xi; Lyu, S. S.; Machate, F.; Mañá, C.; Marín, J.; Martin, T.; Martínez, G.; Masi, N.; Maurin, D.; Menchaca-Rocha, A.; Meng, Q.; Mo, D. C.; Molero, M.; Mott, P.; Mussolin, L.; Nelson, T.; Ni, J. Q.; Nikonov, N.; Nozzoli, F.; Oliva, A.; Orcinha, M.; Palermo, M.; Palmonari, F.; Paniccia, M.; Pashnin, A.; Pauluzzi, M.; Pensotti, S.; Perrina, C.; Phan, H. D.; Picot-Clemente, N.; Plyaskin, V.; Pohl, M.; Poireau, V.; Popkow, A.; Quadrani, L.; Qi, X. M.; Qin, X.; Qu, Z. Y.; Rancoita, P. G.; Rapin, D.; Conde, A. Reina; Rosier-Lees, S.; Rozhkov, A.; Rozza, D.; Sagdeev, R.; Solano, C.; Schael, S.; Schmidt, S. M.; Schulz von Dratzig, A.; Schwering, G.; Seo, E. S.; Shan, B. S.; Shi, J. Y.; Siedenburg, T.; Song, J. W.; Sun, Z. T.; Tacconi, M.; Tang, X. W.; Tang, Z. C.; Tian, J.; Ting, Samuel C. C.; Ting, S. M.; Tomassetti, N.; Torsti, J.; Urban, T.; Vagelli, V.; Valente, E.; Valtonen, E.; Vázquez Acosta, M.; Vecchi, M.; Velasco, M.; Vialle, J. P.; Vizán, J.; Wang, L. Q.; Wang, N. H.; Wang, Q. L.; Wang, X.; Wang, X. Q.; Wang, Z. X.; Wei, J.; Weng, Z. L.; Wu, H.; Xiong, R. Q.; Xu, W.; Yan, Q.; Yang, Y.; Yi, H.; Yu, Y. J.; Yu, Z. Q.; Zannoni, M.; Zeissler, S.; Zhang, C.; Zhang, F.; Zhang, J. H.; Zhang, Z.; Zhao, F.; Zheng, Z. M.; Zhuang, H. L.; Zhukov, V.; Zichichi, A.; Zimmermann, N.; Zuccon, P.en_US
dspace.embargo.termsNen_US
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