Your browser doesn't support javascript.
loading
Measurement of the Cosmic Ray Helium Energy Spectrum from 70 GeV to 80 TeV with the DAMPE Space Mission.
Alemanno, F; An, Q; Azzarello, P; Barbato, F C T; Bernardini, P; Bi, X J; Cai, M S; Catanzani, E; Chang, J; Chen, D Y; Chen, J L; Chen, Z F; Cui, M Y; Cui, T S; Cui, Y X; Dai, H T; D'Amone, A; De Benedittis, A; De Mitri, I; de Palma, F; Deliyergiyev, M; Di Santo, M; Dong, T K; Dong, Z X; Donvito, G; Droz, D; Duan, J L; Duan, K K; D'Urso, D; Fan, R R; Fan, Y Z; Fang, K; Fang, F; Feng, C Q; Feng, L; Fusco, P; Gao, M; Gargano, F; Gong, K; Gong, Y Z; Guo, D Y; Guo, J H; Guo, X L; Han, S X; Hu, Y M; Huang, G S; Huang, X Y; Huang, Y Y; Ionica, M; Jiang, W.
Affiliation
  • Alemanno F; Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy.
  • An Q; Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy.
  • Azzarello P; State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China.
  • Barbato FCT; Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
  • Bernardini P; Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland.
  • Bi XJ; Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy.
  • Cai MS; Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy.
  • Catanzani E; Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy.
  • Chang J; Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy.
  • Chen DY; Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China.
  • Chen JL; University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China.
  • Chen ZF; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • Cui MY; School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China.
  • Cui TS; Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Perugia, I-06123 Perugia, Italy.
  • Cui YX; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • Dai HT; School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China.
  • D'Amone A; University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China.
  • De Benedittis A; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • De Mitri I; Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China.
  • de Palma F; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • Deliyergiyev M; School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China.
  • Di Santo M; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • Dong TK; National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China.
  • Dong ZX; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • Donvito G; School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China.
  • Droz D; State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China.
  • Duan JL; Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China.
  • Duan KK; Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy.
  • D'Urso D; Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy.
  • Fan RR; Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy.
  • Fan YZ; Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy.
  • Fang K; Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy.
  • Fang F; Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy.
  • Feng CQ; Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy.
  • Feng L; Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy.
  • Fusco P; Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland.
  • Gao M; Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy.
  • Gargano F; Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy.
  • Gong K; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • Gong YZ; National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China.
  • Guo DY; Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy.
  • Guo JH; Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland.
  • Guo XL; Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China.
  • Han SX; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • Hu YM; Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Perugia, I-06123 Perugia, Italy.
  • Huang GS; Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China.
  • Huang XY; Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China.
  • Huang YY; School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China.
  • Ionica M; Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China.
  • Jiang W; Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China.
Phys Rev Lett ; 126(20): 201102, 2021 May 21.
Article in En | MEDLINE | ID: mdl-34110215
ABSTRACT
The measurement of the energy spectrum of cosmic ray helium nuclei from 70 GeV to 80 TeV using 4.5 years of data recorded by the Dark Matter Particle Explorer (DAMPE) is reported in this work. A hardening of the spectrum is observed at an energy of about 1.3 TeV, similar to previous observations. In addition, a spectral softening at about 34 TeV is revealed for the first time with large statistics and well controlled systematic uncertainties, with an overall significance of 4.3σ. The DAMPE spectral measurements of both cosmic protons and helium nuclei suggest a particle charge dependent softening energy, although with current uncertainties a dependence on the number of nucleons cannot be ruled out.
Fulltext
Add to My VHL
Print
XML
PubMed Links
Search on Google

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2021 Document type: Article Affiliation country: Italia
Fulltext
Add to My VHL
Print
XML
PubMed Links
Search on Google

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev Lett Year: 2021 Document type: Article Affiliation country: Italia