A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8 x 10(6) positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to similar to 250 GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. The positron fraction spectrum shows no fine structure, and the positron to electron ratio shows no observable anisotropy. Together, these features show the existence of new physical phenomena. DOI: 10.1103/PhysRevLett.110.141102
First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-350 GeV / Aguilar, M; Alberti, G; Alpat, B; Alvino, A; Ambrosi, G; Andeen, K; Anderhub, H; Arruda, L; Azzarello, P; Bachlechner, A; Barao, F; Baret, B; Barrau, A; Barrin, L; Bartoloni, A; Basara, L; Basili, A; Batalha, L; Bates, J; Battiston, R; Bazo, J; Becker, R; Becker, U; Behlmann, M; Beischer, B; Berdugo, J; Berges, P; Bertucci, B; Bigongiari, G; Biland, A; Bindi, V; Bizzaglia, S; Boella, G; de Boer, W; Bollweg, K; Bolmont, J; Borgia, B; Borsini, S; Boschini, Mj; Boudoul, G; Bourquin, M; Brun, P; Buenerd, M; Burger, J; Burger, W; Cadoux, F; Cai, Xd; Capell, M; Casadei, D; Casaus, J; Cascioli, V; Castellini, G; Cernuda, I; Cervelli, F; Chae, Mj; Chang, Yh; Chen, Ai; Chen, Cr; Chen, H; Cheng, Gm; Chen, Hs; Cheng, L; Chernoplyiokov, N; Chikanian, A; Choumilov, E; Choutko, V; Chung, Ch; Clark, C; Clavero, R; Coignet, G; Commichau, V; Consolandi, C; Contin, A; Corti, C; Dios, Mtc; Coste, B; Crespo, D; Cui, Z; Dai, M; Delgado, C; Della Torre, S; Demirkoz, B; Dennett, P; Derome, L; Di Falco, S; Diao, Xh; Diago, A; Djambazov, L; Diaz, C; von Doetinchem, P; Du, Wj; Dubois, Jm; Duperay, R; Duranti, M; D'Urso, D; Egorov, A; Eline, A; Eppling, Fj; Eronen, T; van Es, J; Esser, H; Falvard, A; Fiandrini, E; Fiasson, A; Finch, E; Fisher, P; Flood, K; Foglio, R; Fohey, M; Fopp, S; Fouque, N; Galaktionov, Y; Gallilee, M; Gallin-Martel, L; Gallucci, G; Garcia, B; Garcia, J; Garcia-Lopez, R; Garcia-Tabares, L; Gargiulo, C; Gast, H; Gebauer, I; Gentile, S; Gervasi, M; Gillard, W; Giovacchini, F; Girard, L; Goglov, P; Gong, J; Goy-Henningsen, C; Grandi, D; Graziani, M; Grechko, A; Gross, A; Guerri, I; de la Guia, C; Guo, Kh; Habiby, M; Haino, S; Hauler, F; He, Zh; Heil, M; Heilig, J; Hermel, R; Hofer, H; Huang, Zc; Hungerford, W; Incagli, M; Ionica, M; Jacholkowska, A; Jang, Wy; Jinchi, H; Jongmanns, M; Journet, L; Jungermann, L; Karpinski, W; Kim, Gn; Kim, Ks; Kirn, T; Kossakowski, R; Koulemzine, A; Kounina, O; Kounine, A; Koutsenko, V; Krafczyk, Ms; Laudi, E; Laurenti, G; Lauritzen, C; Lebedev, A; Lee, Mw; Lee, Sc; Leluc, C; Vargas, Hl; Lepareur, V; Li, Jq; Li, Q; Li, Tx; Li, W; Li, Zh; Lipari, P; Lin, Ch; Liu, D; Liu, H; Lomtadze, T; Lu, Ys; Lucidi, S; Lubelsmeyer, K; Luo, Jz; Lustermann, W; Lv, S; Madsen, J; Majka, R; Malinin, A; Mana, C; Marin, J; Martin, T; Martinez, G; Masciocchi, F; Masi, N; Maurin, D; Mcinturff, A; Mcintyre, P; Menchaca-Rocha, A; Meng, Q; Menichelli, M; Mereu, I; Millinger, M; Mo, Dc; Molina, M; Mott, P; Mujunen, A; Natale, S; Nemeth, P; Ni, Jq; Nikonov, N; Nozzoli, F; Nunes, P; Obermeier, A; Oh, S; Oliva, A; Palmonari, F; Palomares, C; Paniccia, M; Papi, A; Park, Wh; Pauluzzi, M; Pauss, F; Pauw, A; Pedreschi, E; Pensotti, S; Pereira, R; Perrin, E; Pessina, G; Pierschel, G; Pilo, F; Piluso, A; Pizzolotto, C; Plyaskin, V; Pochon, J; Pohl, M; Poireau, V; Porter, S; Pouxe, J; Putze, A; Quadrani, L; Qi, Xn; Rancoita, Pg; Rapin, D; Ren, Zl; Ricol, Js; Riihonen, E; Rodriguez, I; Roeser, U; Rosier-Lees, S; Rossi, L; Rozhkov, A; Rozza, D; Sabellek, A; Sagdeev, R; Sandweiss, J; Santos, B; Saouter, P; Sarchioni, M; Schael, S; Schinzel, D; Schmanau, M; Schwering, G; von Dratzig, As; Scolieri, G; Seo, Es; Shan, Bs; Shi, Jy; Shi, Ym; Siedenburg, T; Siedling, R; Son, D; Spada, F; Spinella, F; Steuer, M; Stiff, K; Sun, W; Sun, Wh; Sun, Xh; Tacconi, M; Tang, Cp; Tang, Xw; Tang, Zc; Tao, L; Tassan-Viol, J; Ting, Scc; Ting, Sm; Titus, C; Tomassetti, N; Toral, F; Torsti, J; Tsai, Jr; Tutt, Jc; Ulbricht, J; Urban, T; Vagelli, V; Valente, E; Vannini, C; Valtonen, E; Trevino, Mv; Vaurynovich, S; Vecchi, M; Vergain, M; Verlaat, B; Vescovi, C; Vialle, Jp; Viertel, G; Volpini, G; Wang, D; Wang, Nh; Wang, Ql; Wang, Rs; Wang, X; Wang, Zx; Wallraff, W; Weng, Zl; Willenbrock, M; Wlochal, M; Wu, H; Wu, Ky; Wu, Zs; Xiao, Wj; Xie, S; Xiong, Rq; Xin, Gm; Xu, Ns; Xu, W; Yan, Q; Yang, J; Yang, M; Ye, Qh; Yi, H; Yu, Yj; Yu, Zq; Zeissler, S; Zhang, Jg; Zhang, Z; Zhang, Mm; Zheng, Zm; Zhuang, Hl; Zhukov, V; Zichichi, A; Zuccon, P; Zurbach, C. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 110:14(2013). [10.1103/PhysRevLett.110.141102]
First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-350 GeV
Aguilar M; Alberti G; Alpat B; Alvino A; Ambrosi G; Andeen K; Anderhub H; Arruda L; Azzarello P; Bachlechner A; Barao F; Baret B; Barrau A; Barrin L; Bartoloni A; Basara L; Basili A; Batalha L; Bates J; Battiston R; Bazo J; Becker R; Becker U; Behlmann M; Beischer B; Berdugo J; Berges P; Bertucci B; Bigongiari G; Biland A; Bindi V; Bizzaglia S; Boella G; de Boer W; Bollweg K; Bolmont J; Borgia B; Borsini S; Boschini MJ; Boudoul G; Bourquin M; Brun P; Buenerd M; Burger J; Burger W; Cadoux F; Cai XD; Capell M; Casadei D; Casaus J; Cascioli V; Castellini G; Cernuda I; Cervelli F; Chae MJ; Chang YH; Chen AI; Chen CR; Chen H; Cheng GM; Chen HS; Cheng L; Chernoplyiokov N; Chikanian A; Choumilov E; Choutko V; Chung CH; Clark C; Clavero R; Coignet G; Commichau V; Consolandi C; Contin A; Corti C; Dios MTC; Coste B; Crespo D; Cui Z; Dai M; Delgado C; Della Torre S; Demirkoz B; Dennett P; Derome L; Di Falco S; Diao XH; Diago A; Djambazov L; Diaz C; von Doetinchem P; Du WJ; Dubois JM; Duperay R; Duranti M; D'Urso D ;Egorov A; Eline A; Eppling FJ; Eronen T; van Es J; Esser H; Falvard A; Fiandrini E; Fiasson A; Finch E; Fisher P; Flood K; Foglio R; Fohey M; Fopp S; Fouque N; Galaktionov Y; Gallilee M; Gallin-Martel L; Gallucci G; Garcia B; Garcia J; Garcia-Lopez R; Garcia-Tabares L; Gargiulo C; Gast H; Gebauer I; Gentile S; Gervasi M; Gillard W; Giovacchini F; Girard L; Goglov P; Gong J; Goy-Henningsen C; Grandi D; Graziani M; Grechko A; Gross A; Guerri I; de la Guia C; Guo KH; Habiby M; Haino S; Hauler F; He ZH; Heil M; Heilig J; Hermel R; Hofer H; Huang ZC; Hungerford W; Incagli M; Ionica M; Jacholkowska A; Jang WY; Jinchi H; Jongmanns M; Journet L; Jungermann L; Karpinski W; Kim GN; Kim KS; Kirn T; Kossakowski R; Koulemzine A; Kounina O; Kounine A; Koutsenko V; Krafczyk MS; Laudi E; Laurenti G; Lauritzen C; Lebedev A; Lee MW; Lee SC; Leluc C; Vargas HL; Lepareur V; Li JQ; Li Q; Li TX; Li W; Li ZH; Lipari P; Lin CH; Liu D; Liu H; Lomtadze T; Lu YS; Lucidi S; Lubelsmeyer K; Luo JZ; Lustermann W; Lv S; Madsen J; Majka R; Malinin A; Mana C; Marin J; Martin T; Martinez G; Masciocchi F; Masi N; Maurin D; McInturff A; McIntyre P; Menchaca-Rocha A; Meng Q; Menichelli M; Mereu I; Millinger M; Mo DC; Molina M; Mott P; Mujunen A; Natale S; Nemeth P; Ni JQ; Nikonov N; Nozzoli F; Nunes P; Obermeier A; Oh S; Oliva A; Palmonari F; Palomares C; Paniccia M; Papi A; Park WH; Pauluzzi M; Pauss F; Pauw A; Pedreschi E; Pensotti S; Pereira R; Perrin E; Pessina G; Pierschel G; Pilo F; Piluso A; Pizzolotto C; Plyaskin V; Pochon J; Pohl M; Poireau V; Porter S; Pouxe J; Putze A; Quadrani L; Qi XN; Rancoita PG; Rapin D; Ren ZL; Ricol JS; Riihonen E; Rodriguez I; Roeser U; Rosier-Lees S; Rossi L; Rozhkov A; Rozza D ;Sabellek A; Sagdeev R; Sandweiss J; Santos B; Saouter P; Sarchioni M; Schael S; Schinzel D; Schmanau M; Schwering G; von Dratzig AS; Scolieri G; Seo ES; Shan BS; Shi JY; Shi YM; Siedenburg T; Siedling R; Son D; Spada F; Spinella F; Steuer M; Stiff K; Sun W; Sun WH; Sun XH; Tacconi M; Tang CP; Tang XW; Tang ZC; Tao L; Tassan-Viol J; Ting SCC; Ting SM; Titus C; Tomassetti N; Toral F; Torsti J; Tsai JR; Tutt JC; Ulbricht J; Urban T; Vagelli V; Valente E; Vannini C; Valtonen E; Trevino MV; Vaurynovich S; Vecchi M; Vergain M; Verlaat B; Vescovi C; Vialle JP; Viertel G; Volpini G; Wang D; Wang NH; Wang QL; Wang RS; Wang X; Wang ZX; Wallraff W; Weng ZL; Willenbrock M; Wlochal M; Wu H; Wu KY; Wu ZS; Xiao WJ; Xie S; Xiong RQ; Xin GM; Xu NS; Xu W; Yan Q; Yang J; Yang M; Ye QH; Yi H; Yu YJ; Yu ZQ; Zeissler S; Zhang JG; Zhang Z; Zhang MM; Zheng ZM; Zhuang HL; Zhukov V; Zichichi A; Zuccon P; Zurbach C
2013-01-01
Abstract
A precision measurement by the Alpha Magnetic Spectrometer on the International Space Station of the positron fraction in primary cosmic rays in the energy range from 0.5 to 350 GeV based on 6.8 x 10(6) positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to similar to 250 GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. The positron fraction spectrum shows no fine structure, and the positron to electron ratio shows no observable anisotropy. Together, these features show the existence of new physical phenomena. DOI: 10.1103/PhysRevLett.110.141102
Citazione
First Result from the Alpha Magnetic Spectrometer on the International Space Station: Precision Measurement of the Positron Fraction in Primary Cosmic Rays of 0.5-350 GeV / Aguilar, M; Alberti, G; Alpat, B; Alvino, A; Ambrosi, G; Andeen, K; Anderhub, H; Arruda, L; Azzarello, P; Bachlechner, A; Barao, F; Baret, B; Barrau, A; Barrin, L; Bartoloni, A; Basara, L; Basili, A; Batalha, L; Bates, J; Battiston, R; Bazo, J; Becker, R; Becker, U; Behlmann, M; Beischer, B; Berdugo, J; Berges, P; Bertucci, B; Bigongiari, G; Biland, A; Bindi, V; Bizzaglia, S; Boella, G; de Boer, W; Bollweg, K; Bolmont, J; Borgia, B; Borsini, S; Boschini, Mj; Boudoul, G; Bourquin, M; Brun, P; Buenerd, M; Burger, J; Burger, W; Cadoux, F; Cai, Xd; Capell, M; Casadei, D; Casaus, J; Cascioli, V; Castellini, G; Cernuda, I; Cervelli, F; Chae, Mj; Chang, Yh; Chen, Ai; Chen, Cr; Chen, H; Cheng, Gm; Chen, Hs; Cheng, L; Chernoplyiokov, N; Chikanian, A; Choumilov, E; Choutko, V; Chung, Ch; Clark, C; Clavero, R; Coignet, G; Commichau, V; Consolandi, C; Contin, A; Corti, C; Dios, Mtc; Coste, B; Crespo, D; Cui, Z; Dai, M; Delgado, C; Della Torre, S; Demirkoz, B; Dennett, P; Derome, L; Di Falco, S; Diao, Xh; Diago, A; Djambazov, L; Diaz, C; von Doetinchem, P; Du, Wj; Dubois, Jm; Duperay, R; Duranti, M; D'Urso, D; Egorov, A; Eline, A; Eppling, Fj; Eronen, T; van Es, J; Esser, H; Falvard, A; Fiandrini, E; Fiasson, A; Finch, E; Fisher, P; Flood, K; Foglio, R; Fohey, M; Fopp, S; Fouque, N; Galaktionov, Y; Gallilee, M; Gallin-Martel, L; Gallucci, G; Garcia, B; Garcia, J; Garcia-Lopez, R; Garcia-Tabares, L; Gargiulo, C; Gast, H; Gebauer, I; Gentile, S; Gervasi, M; Gillard, W; Giovacchini, F; Girard, L; Goglov, P; Gong, J; Goy-Henningsen, C; Grandi, D; Graziani, M; Grechko, A; Gross, A; Guerri, I; de la Guia, C; Guo, Kh; Habiby, M; Haino, S; Hauler, F; He, Zh; Heil, M; Heilig, J; Hermel, R; Hofer, H; Huang, Zc; Hungerford, W; Incagli, M; Ionica, M; Jacholkowska, A; Jang, Wy; Jinchi, H; Jongmanns, M; Journet, L; Jungermann, L; Karpinski, W; Kim, Gn; Kim, Ks; Kirn, T; Kossakowski, R; Koulemzine, A; Kounina, O; Kounine, A; Koutsenko, V; Krafczyk, Ms; Laudi, E; Laurenti, G; Lauritzen, C; Lebedev, A; Lee, Mw; Lee, Sc; Leluc, C; Vargas, Hl; Lepareur, V; Li, Jq; Li, Q; Li, Tx; Li, W; Li, Zh; Lipari, P; Lin, Ch; Liu, D; Liu, H; Lomtadze, T; Lu, Ys; Lucidi, S; Lubelsmeyer, K; Luo, Jz; Lustermann, W; Lv, S; Madsen, J; Majka, R; Malinin, A; Mana, C; Marin, J; Martin, T; Martinez, G; Masciocchi, F; Masi, N; Maurin, D; Mcinturff, A; Mcintyre, P; Menchaca-Rocha, A; Meng, Q; Menichelli, M; Mereu, I; Millinger, M; Mo, Dc; Molina, M; Mott, P; Mujunen, A; Natale, S; Nemeth, P; Ni, Jq; Nikonov, N; Nozzoli, F; Nunes, P; Obermeier, A; Oh, S; Oliva, A; Palmonari, F; Palomares, C; Paniccia, M; Papi, A; Park, Wh; Pauluzzi, M; Pauss, F; Pauw, A; Pedreschi, E; Pensotti, S; Pereira, R; Perrin, E; Pessina, G; Pierschel, G; Pilo, F; Piluso, A; Pizzolotto, C; Plyaskin, V; Pochon, J; Pohl, M; Poireau, V; Porter, S; Pouxe, J; Putze, A; Quadrani, L; Qi, Xn; Rancoita, Pg; Rapin, D; Ren, Zl; Ricol, Js; Riihonen, E; Rodriguez, I; Roeser, U; Rosier-Lees, S; Rossi, L; Rozhkov, A; Rozza, D; Sabellek, A; Sagdeev, R; Sandweiss, J; Santos, B; Saouter, P; Sarchioni, M; Schael, S; Schinzel, D; Schmanau, M; Schwering, G; von Dratzig, As; Scolieri, G; Seo, Es; Shan, Bs; Shi, Jy; Shi, Ym; Siedenburg, T; Siedling, R; Son, D; Spada, F; Spinella, F; Steuer, M; Stiff, K; Sun, W; Sun, Wh; Sun, Xh; Tacconi, M; Tang, Cp; Tang, Xw; Tang, Zc; Tao, L; Tassan-Viol, J; Ting, Scc; Ting, Sm; Titus, C; Tomassetti, N; Toral, F; Torsti, J; Tsai, Jr; Tutt, Jc; Ulbricht, J; Urban, T; Vagelli, V; Valente, E; Vannini, C; Valtonen, E; Trevino, Mv; Vaurynovich, S; Vecchi, M; Vergain, M; Verlaat, B; Vescovi, C; Vialle, Jp; Viertel, G; Volpini, G; Wang, D; Wang, Nh; Wang, Ql; Wang, Rs; Wang, X; Wang, Zx; Wallraff, W; Weng, Zl; Willenbrock, M; Wlochal, M; Wu, H; Wu, Ky; Wu, Zs; Xiao, Wj; Xie, S; Xiong, Rq; Xin, Gm; Xu, Ns; Xu, W; Yan, Q; Yang, J; Yang, M; Ye, Qh; Yi, H; Yu, Yj; Yu, Zq; Zeissler, S; Zhang, Jg; Zhang, Z; Zhang, Mm; Zheng, Zm; Zhuang, Hl; Zhukov, V; Zichichi, A; Zuccon, P; Zurbach, C. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 110:14(2013). [10.1103/PhysRevLett.110.141102]
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
Sei sicuro che questo prodotto debba essere cancellato?
Il report seguente simula gli indicatori relativi alla propria produzione scientifica in relazione alle soglie ASN 2023-2025 del proprio SC/SSD. Si ricorda che il superamento dei valori soglia (almeno 2 su 3) è requisito necessario ma non sufficiente al conseguimento dell'abilitazione. La simulazione si basa sui dati IRIS e sugli indicatori bibliometrici alla data indicata e non tiene conto di eventuali periodi di congedo obbligatorio, che in sede di domanda ASN danno diritto a incrementi percentuali dei valori. La simulazione può differire dall'esito di un’eventuale domanda ASN sia per errori di catalogazione e/o dati mancanti in IRIS, sia per la variabilità dei dati bibliometrici nel tempo. Si consideri che Anvur calcola i valori degli indicatori all'ultima data utile per la presentazione delle domande. La presente simulazione è stata realizzata sulla base delle specifiche raccolte sul tavolo ER del Focus Group IRIS coordinato dall’Università di Modena e Reggio Emilia e delle regole riportate nel DM 589/2018 e allegata Tabella A. Cineca, l’Università di Modena e Reggio Emilia e il Focus Group IRIS non si assumono alcuna responsabilità in merito all’uso che il diretto interessato o terzi faranno della simulazione. Si specifica inoltre che la simulazione contiene calcoli effettuati con dati e algoritmi di pubblico dominio e deve quindi essere considerata come un mero ausilio al calcolo svolgibile manualmente o con strumenti equivalenti.