Observation of Spectral Structures in the Flux of Cosmic-Ray Protons from 50 GeV to 60 TeV with the Calorimetric Electron Telescope on the International Space Station

被引:42
作者
Adriani, O. [1 ,2 ]
Akaike, Y. [3 ,4 ]
Asano, K. [5 ]
Asaoka, Y. [5 ]
Berti, E. [1 ,2 ]
Bigongiari, G. [6 ,7 ]
Binns, W. R. [8 ,9 ]
Bongi, M. [1 ,2 ]
Brogi, P. [6 ,7 ]
Bruno, A. [10 ]
Buckley, J. H. [8 ,9 ]
Cannady, N. [11 ,12 ,13 ]
Castellini, G. [14 ]
Checchia, C. [6 ,7 ]
Cherry, M. L. [15 ]
Collazuol, G. [16 ,17 ]
Ebisawa, K. [18 ]
Ficklin, A. W. [15 ]
Fuke, H. [18 ]
Gonzi, S. [1 ,2 ]
Guzik, T. G. [15 ]
Hams, T. [11 ]
Hibino, K. [19 ]
Ichimura, M. [20 ]
Ioka, K. [21 ]
Ishizaki, W. [5 ]
Israel, M. H. [8 ,9 ]
Kasahara, K. [22 ]
Kataoka, J. [23 ]
Kataoka, R. [24 ]
Katayose, Y. [25 ]
Kato, C. [26 ]
Kawanaka, N. [21 ]
Kawakubo, Y. [15 ]
Kobayashi, K. [3 ,4 ]
Kohri, K. [27 ]
Krawczynski, H. S. [8 ,9 ]
Krizmanic, J. F. [12 ]
Maestro, P. [6 ,7 ]
Marrocchesi, P. S. [6 ,7 ]
Messineo, A. M. [7 ,28 ]
Mitchell, J. W. [12 ]
Miyake, S. [29 ]
Moiseev, A. A. [12 ,13 ,30 ]
Mori, M. [31 ]
Mori, N. [2 ]
Motz, H. M. [32 ]
Munakata, K. [26 ]
Nakahira, S. [18 ]
Nishimura, J. [18 ]
机构
[1] Univ Florence, Dept Phys, Via Sansone 1, I-50019 Sesto Fiorentino, Italy
[2] Ist Nazl Fis Nucl, Sez Florence, Via Sansone 1, I-50019 Sesto Fiorentino, Italy
[3] Waseda Univ, Waseda Res Inst Sci & Engn, Shinjuku Ku, 17 Kikuicho, Tokyo 1620044, Japan
[4] Japan Aerosp Explorat Agcy, JEM Utilizat Ctr, Human Spaceflight Technol Directorate, 2-1-1 Sengen, Tsukuba, Ibaraki 3058505, Japan
[5] Univ Tokyo, Inst Cosm Ray Res, 5-1-5 Kashiwa No Ha, Kashiwa, Chiba 2778582, Japan
[6] Univ Siena, Dept Phys Sci Earth & Environm, Via Roma 56, I-53100 Siena, Italy
[7] Ist Nazl Fis Nucl, Polo Fibonacci, Sez Pisa, Largo B Pontecorvo 3, I-56127 Pisa, Italy
[8] Washington Univ, Dept Phys, One Brookings Dr, St Louis, MO 63130 USA
[9] Washington Univ, McDonnell Ctr Space Sci, One Brookings Dr, St Louis, MO 63130 USA
[10] NASA GSFC, Helios Her Phys Lab, Greenbelt, MD 20771 USA
[11] Univ Maryland Baltimore Cty, Ctr Space Sci & Technol, 1000 Hilltop Circle, Baltimore, MD 21250 USA
[12] NASA GSFC, Astroparticle Phys Lab, Greenbelt, MD 20771 USA
[13] NASA GSFC, Ctr Res & Explorat Space Sci & Technol, Greenbelt, MD 20771 USA
[14] Natl Res Council CNR, Inst Appl Phys IFAC, Via Madonna Piano 10, I-50019 Sesto Fiorentino, Italy
[15] Louisiana State Univ, Dept Phys & Astron, 202 Nicholson Hall, Baton Rouge, LA 70803 USA
[16] Univ Padua, Dept Phys & Astron, Via Marzolo 8, I-35131 Padua, Italy
[17] Ist Nazl Fis Nucl, Sez Padova, Via Marzolo 8, I-35131 Padua, Italy
[18] Japan Aerosp Explorat Agcy, Inst Space & Astronaut Sci, Chuo Ku, 3-1-1 Yoshinodai, Sagamihara, Kanagawa 2525210, Japan
[19] Kanagawa Univ, 3-27-1 Rokkakubashi, Yokohama, Kanagawa 2218686, Japan
[20] Hirosaki Univ, Fac Sci & Technol, Grad Sch Sci & Technol, Bunkyo Ku, Hirosaki, Aomori 0368561, Japan
[21] Kyoto Univ, Yukawa Inst Theoret Phys, Sakyo Ku, Kitashirakawa Oiwake Cho, Kyoto 6068502, Japan
[22] Shibaura Inst Technol, Dept Elect Informat Syst, 307 Fukasaku, Minuma, Saitama 3378570, Japan
[23] Waseda Univ, Sch Adv Sci & Engn, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan
[24] Natl Inst Polar Res, 10-3 Midori Cho, Tachikawa, Tokyo 1908518, Japan
[25] Yokohama Natl Univ, Div Intelligent Syst Engn, Fac Engn, 79-5 Tokiwadai, Yokohama, Kanagawa 2408501, Japan
[26] Shinshu Univ, Fac Sci, 3-1-1 Asahi, Matsumoto, Nagano 3908621, Japan
[27] High Energy Accelerator Res Org, Inst Particle & Nucl Studies, 1-1 Oho, Tsukuba, Ibaraki 3050801, Japan
[28] Univ Pisa, Polo Fibonacci, Largo B Pontecorvo 3, I-56127 Pisa, Italy
[29] Ibaraki Coll, Natl Inst Technol KOSEN, Dept Elect & Elect Syst Engn, 866 Nakane, Hitachinaka, Ibaraki 3128508, Japan
[30] Univ Maryland, Dept Astron, College Pk, MD 20742 USA
[31] Ritsumeikan Univ, Coll Sci & Engn, Dept Phys Sci, Kyoto, Shiga 5258577, Japan
[32] Waseda Univ, Fac Sci & Engn, Global Ctr Sci & Engn, Shinjuku Ku, 3-4-1 Okubo, Tokyo 1698555, Japan
[33] Univ Denver, Dept Phys & Astron, Phys Bldg,Room 211,2112 East Wesley Ave, Denver, CO 80208 USA
[34] Natl Inst Informat & Commun Technol, Quantum ICT Adv Dev Ctr, 4-2-1 Nukui Kitamachi, Koganei, Tokyo 1848795, Japan
[35] Aoyama Gakuin Univ, Coll Sci & Engn, Dept Phys & Math, Chuo Ku, 5-10-1 Fuchinobe, Sagamihara, Kanagawa 2525258, Japan
[36] Nihon Univ, Coll Ind Technol, 1-2-1 Izumi, Narashino, Chiba 2758575, Japan
[37] Osaka Metropolitan Univ, Grad Sch Sci, Sumiyoshi Ku, Osaka 5588585, Japan
[38] Osaka Metropolitan Univ, Nambu Yoichiro Inst Theoret & Expt Phys, Sumiyoshi Ku, Osaka 5588585, Japan
[39] Natl Inst Quantum & Radiat Sci & Technol, 4-9-1 Anagawa, Inge, Chiba 2638555, Japan
[40] Nagoya Univ, Chikusa Ku, Furo Ku, Nagoya, Aichi 4648601, Japan
[41] Ibaraki Univ, Coll Sci, 2-1-1 Bunkyo, Mito, Ibaraki 3108512, Japan
关键词
HELIUM SPECTRA; SUPERNOVA-REMNANTS; HIGH-ENERGY; COMPONENT; ORIGIN;
D O I
10.1103/PhysRevLett.129.101102
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A precise measurement of the cosmic-ray proton spectrum with the Calorimetric Electron Telescope (CALET) is presented in the energy interval from 50 GeV to 60 TeV, and the observation of a softening of the spectrum above 10 TeV is reported. The analysis is based on the data collected during similar to 6.2 years of smooth operations aboard the International Space Station and covers a broader energy range with respect to the previous proton flux measurement by CALET, with an increase of the available statistics by a factor of similar to 2.2. Above a few hundred GeV we confirm our previous observation of a progressive spectral hardening with a higher significance (more than 20 sigma). In the multi-TeV region we observe a second spectral feature with a softening around 10 TeV and a spectral index change from -2.6 to -2.9 consistently, within the errors, with the shape of the spectrum reported by DAMPE. We apply a simultaneous fit of the proton differential spectrum which well reproduces the gradual change of the spectral index encompassing the lower energy power-law regime and the two spectral features observed at higher energies.
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页数:8
相关论文
共 65 条
[1]   Direct Measurement of the Nickel Spectrum in Cosmic Rays in the Energy Range from 8.8 GeV/n to 240 GeV/n with CALET on the International Space Station [J].
Adriani, O. ;
Akaike, Y. ;
Asano, K. ;
Asaoka, Y. ;
Berti, E. ;
Bigongiari, G. ;
Binns, W. R. ;
Bongi, M. ;
Brogi, P. ;
Bruno, A. ;
Buckley, J. H. ;
Cannady, N. ;
Castellini, G. ;
Checchia, C. ;
Cherry, M. L. ;
Collazuol, G. ;
Ebisawa, K. ;
Ficklin, A. W. ;
Fuke, H. ;
Gonzi, S. ;
Guzik, T. G. ;
Hams, T. ;
Hibino, K. ;
Ichimura, M. ;
Ioka, K. ;
Ishizaki, W. ;
Israel, M. H. ;
Kasahara, K. ;
Kataoka, J. ;
Kataoka, R. ;
Katayose, Y. ;
Kato, C. ;
Kawanaka, N. ;
Kawakubo, Y. ;
Kobayashi, K. ;
Kohri, K. ;
Krawczynski, H. S. ;
Krizmanic, J. F. ;
Maestro, P. ;
Marrocchesi, P. S. ;
Messineo, A. M. ;
Mitchell, J. W. ;
Miyake, S. ;
Moiseev, A. A. ;
Mori, M. ;
Mori, N. ;
Motz, H. M. ;
Munakata, K. ;
Nakahira, S. ;
Nishimura, J. .
PHYSICAL REVIEW LETTERS, 2022, 128 (13)
[2]   Measurement of the Iron Spectrum in Cosmic Rays from 10 GeV/n to 2.0 TeV/n with the Calorimetric Electron Telescope on the International Space Station [J].
Adriani, O. ;
Akaike, Y. ;
Asano, K. ;
Asaoka, Y. ;
Berti, E. ;
Bigongiari, G. ;
Binns, W. R. ;
Bongi, M. ;
Brogi, P. ;
Bruno, A. ;
Buckley, J. H. ;
Cannady, N. ;
Castellini, G. ;
Checchia, C. ;
Cherry, M. L. ;
Collazuol, G. ;
Ebisawa, K. ;
Fuke, H. ;
Gonzi, S. ;
Guzik, T. G. ;
Hams, T. ;
Hibino, K. ;
Ichimura, M. ;
Ioka, K. ;
Ishizaki, W. ;
Israel, M. H. ;
Kasahara, K. ;
Kataoka, J. ;
Kataoka, R. ;
Katayose, Y. ;
Kato, C. ;
Kawanaka, N. ;
Kawakubo, Y. ;
Kobayashi, K. ;
Kohri, K. ;
Krawczynski, H. S. ;
Krizmanic, J. F. ;
Link, J. ;
Maestro, P. ;
Marrocchesi, P. S. ;
Messineo, A. M. ;
Mitchell, J. W. ;
Miyake, S. ;
Moiseev, A. A. ;
Mori, M. ;
Mori, N. ;
Motz, H. M. ;
Munakata, K. ;
Nakahira, S. ;
Nishimura, J. .
PHYSICAL REVIEW LETTERS, 2021, 126 (24)
[3]   Direct Measurement of the Cosmic-Ray Carbon and Oxygen Spectra from 10 GeV/n to 2.2 TeV/n with the Calorimetric Electron Telescope on the International Space Station [J].
Adriani, O. ;
Akaike, Y. ;
Asano, K. ;
Asaoka, Y. ;
Bagliesi, M. G. ;
Berti, E. ;
Bigongiari, G. ;
Binns, W. R. ;
Bongi, M. ;
Brogi, P. ;
Bruno, A. ;
Buckley, J. H. ;
Cannady, N. ;
Castellini, G. ;
Checchia, C. ;
Cherry, M. L. ;
Collazuol, G. ;
Ebisawa, K. ;
Fuke, H. ;
Gonzi, S. ;
Guzik, T. G. ;
Hams, T. ;
Hibino, K. ;
Ichimura, M. ;
Ioka, K. ;
Ishizaki, W. ;
Israel, M. H. ;
Kasahara, K. ;
Kataoka, J. ;
Kataoka, R. ;
Katayose, Y. ;
Kato, C. ;
Kawanaka, N. ;
Kawakubo, Y. ;
Kobayashi, K. ;
Kohri, K. ;
Krawczynski, H. S. ;
Krizmanic, J. F. ;
Link, J. ;
Maestro, P. ;
Marrocchesi, P. S. ;
Messineo, A. M. ;
Mitchell, J. W. ;
Miyake, S. ;
Moiseev, A. A. ;
Mori, M. ;
Mori, N. ;
Motz, H. M. ;
Munakata, K. ;
Nakahira, S. .
PHYSICAL REVIEW LETTERS, 2020, 125 (25)
[4]   Direct Measurement of the Cosmic-Ray Proton Spectrum from 50 GeV to 10 TeV with the Calorimetric Electron Telescope on the International Space Station [J].
Adriani, O. ;
Akaike, Y. ;
Asano, K. ;
Asaoka, Y. ;
Bagliesi, M. G. ;
Berti, E. ;
Bigongiari, G. ;
Binns, W. R. ;
Bonechi, S. ;
Bongi, M. ;
Brogi, P. ;
Bruno, A. ;
Buckley, J. H. ;
Cannady, N. ;
Castellini, G. ;
Checchia, C. ;
Cherry, M. L. ;
Collazuol, G. ;
Di Felice, V ;
Ebisawa, K. ;
Fuke, H. ;
Guzik, T. G. ;
Hams, T. ;
Hasebe, N. ;
Hibino, K. ;
Ichimura, M. ;
Ioka, K. ;
Ishizaki, W. ;
Israel, M. H. ;
Kasahara, K. ;
Kataoka, J. ;
Kataoka, R. ;
Katayose, Y. ;
Kato, C. ;
Kawanaka, N. ;
Kawakubo, Y. ;
Kohri, K. ;
Krawczynski, H. S. ;
Krizmanic, J. F. ;
Lomtadze, T. ;
Maestro, P. ;
Marrocchesi, P. S. ;
Messineo, A. M. ;
Mitchell, J. W. ;
Miyake, S. ;
Moiseev, A. A. ;
Mori, K. ;
Mori, M. ;
Mori, N. ;
Motz, H. M. .
PHYSICAL REVIEW LETTERS, 2019, 122 (18)
[5]   Extended Measurement of the Cosmic-Ray Electron and Positron Spectrum from 11 GeV to 4.8 TeV with the Calorimetric Electron Telescope on the International Space Station [J].
Adriani, O. ;
Akaike, Y. ;
Asano, K. ;
Asaoka, Y. ;
Bagliesi, M. G. ;
Berti, E. ;
Bigongiari, G. ;
Binns, W. R. ;
Bonechi, S. ;
Bongi, M. ;
Brogi, P. ;
Buckley, J. H. ;
Cannady, N. ;
Castellini, G. ;
Checchia, C. ;
Cherry, M. L. ;
Collazuol, G. ;
Di Felice, V ;
Ebisawa, K. ;
Fuke, H. ;
Guzik, T. G. ;
Hams, T. ;
Hareyama, M. ;
Hasebe, N. ;
Hibino, K. ;
Ichimura, M. ;
Ioka, K. ;
Ishizaki, W. ;
Israel, M. H. ;
Kasahara, K. ;
Kataoka, J. ;
Kataoka, R. ;
Katayose, Y. ;
Kato, C. ;
Kawanaka, N. ;
Kawakubo, Y. ;
Kohri, K. ;
Krawczynski, H. S. ;
Krizmanic, J. F. ;
Lomtadze, T. ;
Maestro, P. ;
Marrocchesi, P. S. ;
Messineo, A. M. ;
Mitchell, J. W. ;
Miyake, S. ;
Moiseev, A. A. ;
Mori, K. ;
Mori, M. ;
Mori, N. ;
Motz, H. M. .
PHYSICAL REVIEW LETTERS, 2018, 120 (26)
[6]   Energy Spectrum of Cosmic-Ray Electron and Positron from 10 GeV to 3 TeV Observed with the Calorimetric Electron Telescope on the International Space Station [J].
Adriani, O. ;
Akaike, Y. ;
Asano, K. ;
Asaoka, Y. ;
Bagliesi, M. G. ;
Bigongiari, G. ;
Binns, W. R. ;
Bonechi, S. ;
Bongi, M. ;
Brogi, P. ;
Buckley, J. H. ;
Cannady, N. ;
Castellini, G. ;
Checchia, C. ;
Cherry, M. L. ;
Collazuol, G. ;
Di Felice, V. ;
Ebisawa, K. ;
Fuke, H. ;
Guzik, T. G. ;
Hams, T. ;
Hareyama, M. ;
Hasebe, N. ;
Hibino, K. ;
Ichimura, M. ;
Ioka, K. ;
Ishizaki, W. ;
Israel, M. H. ;
Javaid, A. ;
Kasahara, K. ;
Kataoka, J. ;
Kataoka, R. ;
Katayose, Y. ;
Kato, C. ;
Kawanaka, N. ;
Kawakubo, Y. ;
Krawczynski, H. S. ;
Krizmanic, J. F. ;
Kuramata, S. ;
Lomtadze, T. ;
Maestro, P. ;
Marrocchesi, P. S. ;
Messineo, A. M. ;
Mitchell, J. W. ;
Miyake, S. ;
Mizutani, K. ;
Moiseev, A. A. ;
Mori, K. ;
Mori, M. ;
Mori, N. .
PHYSICAL REVIEW LETTERS, 2017, 119 (18)
[7]   PAMELA Measurements of Cosmic-Ray Proton and Helium Spectra [J].
Adriani, O. ;
Barbarino, G. C. ;
Bazilevskaya, G. A. ;
Bellotti, R. ;
Boezio, M. ;
Bogomolov, E. A. ;
Bonechi, L. ;
Bongi, M. ;
Bonvicini, V. ;
Borisov, S. ;
Bottai, S. ;
Bruno, A. ;
Cafagna, F. ;
Campana, D. ;
Carbone, R. ;
Carlson, P. ;
Casolino, M. ;
Castellini, G. ;
Consiglio, L. ;
De Pascale, M. P. ;
De Santis, C. ;
De Simone, N. ;
Di Felice, V. ;
Galper, A. M. ;
Gillard, W. ;
Grishantseva, L. ;
Jerse, G. ;
Karelin, A. V. ;
Koldashov, S. V. ;
Krutkov, S. Y. ;
Kvashnin, A. N. ;
Leonov, A. ;
Malakhov, V. ;
Malvezzi, V. ;
Marcelli, L. ;
Mayorov, A. G. ;
Menn, W. ;
Mikhailov, V. V. ;
Mocchiutti, E. ;
Monaco, A. ;
Mori, N. ;
Nikonov, N. ;
Osteria, G. ;
Palma, F. ;
Papini, P. ;
Pearce, M. ;
Picozza, P. ;
Pizzolotto, C. ;
Ricci, M. ;
Ricciarini, S. B. .
SCIENCE, 2011, 332 (6025) :69-72
[8]  
Adriani O., 2022, PHYS REV LETT, V129, DOI [10.1103/PhysRevLett.129.101102, DOI 10.1103/PHYSREVLETT.129.101102]
[9]  
Adye T., 2011, arXiv:1105.1160, P313, DOI DOI 10.5170/CERN-2011-006.313
[10]   GEANT4-a simulation toolkit [J].
Agostinelli, S ;
Allison, J ;
Amako, K ;
Apostolakis, J ;
Araujo, H ;
Arce, P ;
Asai, M ;
Axen, D ;
Banerjee, S ;
Barrand, G ;
Behner, F ;
Bellagamba, L ;
Boudreau, J ;
Broglia, L ;
Brunengo, A ;
Burkhardt, H ;
Chauvie, S ;
Chuma, J ;
Chytracek, R ;
Cooperman, G ;
Cosmo, G ;
Degtyarenko, P ;
Dell'Acqua, A ;
Depaola, G ;
Dietrich, D ;
Enami, R ;
Feliciello, A ;
Ferguson, C ;
Fesefeldt, H ;
Folger, G ;
Foppiano, F ;
Forti, A ;
Garelli, S ;
Giani, S ;
Giannitrapani, R ;
Gibin, D ;
Cadenas, JJG ;
González, I ;
Abril, GG ;
Greeniaus, G ;
Greiner, W ;
Grichine, V ;
Grossheim, A ;
Guatelli, S ;
Gumplinger, P ;
Hamatsu, R ;
Hashimoto, K ;
Hasui, H ;
Heikkinen, A ;
Howard, A .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2003, 506 (03) :250-303