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The operation of AMS-02 opens a new era for the study of cosmic ray physics with unprecedentedly precise data which are comparable with the laboratory measurements. The high precision data allow a quantitative study on the cosmic ray…

高能天体物理现象 · 物理学 2015-03-23 Qiang Yuan , Xiao-Jun Bi

The AMS-02 experiment has ushered cosmic-ray physics into precision era. In a companion paper, we designed an improved method to calibrate propagation models on B/C data. Here we provide a robust prediction of the $\bar{p}$ flux, accounting…

高能天体物理现象 · 物理学 2020-04-13 Mathieu Boudaud , Yoann Génolini , Laurent Derome , Julien Lavalle , David Maurin , Pierre Salati , Pasquale D. Serpico

The TRACER cosmic-ray detector, first flown on long-duration balloon (LDB) in 2003 for observations of the major primary cosmic-ray nuclei from oxygen (Z=8) to iron (Z=26), has been upgraded to also measure the energies of the lighter…

高能天体物理现象 · 物理学 2011-11-04 A. Obermeier , M. Ave , P. Boyle , Ch. Höppner , J. Hörandel , D. Müller

Until fairly recently, it was widely accepted that local cosmic ray spectra were largely featureless power laws, containing limited information on their acceleration and transport. This viewpoint is currently being revised in the light of…

高能天体物理现象 · 物理学 2019-08-14 Andrea Vittino , Philipp Mertsch , Henning Gast , Stefan Schael

We present the measurement of the energy dependence of the boron flux in cosmic rays and its ratio to the carbon flux \textcolor{black}{in an energy interval from 8.4 GeV$/n$ to 3.8 TeV$/n$} based on the data collected by the CALorimetric…

Evidence for a local 'Single Source' of cosmic rays is amassing by way of the recent precise measurements of various cosmic ray energy spectra from the AMS-02 instrument. To observations of individual cosmic ray nuclei, electrons, positrons…

高能天体物理现象 · 物理学 2016-11-14 Anatoly Erlykin , Arnold Wolfendale

The ratio between secondary and primary cosmic ray particles is the main source of information about cosmic ray propagation in the Galaxy. Primary cosmic rays are thought to be accelerated mainly in Supernova Remnant (SNR) shocks and then…

高能天体物理现象 · 物理学 2019-07-10 Virginia Bresci , Elena Amato , Pasquale Blasi , Giovanni Morlino

The BESS-Polar Collaboration measured the energy spectra of cosmic-ray protons and helium during two long-duration balloon flights over Antarctica in December 2004 and December 2007, at substantially different levels of solar modulation.…

Recent data on Galactic cosmic rays (CRs) revealed that the helium energy spectrum is harder than the proton spectrum. The AMS experiment has now reported that the proton-to-helium ratio as function of rigidity $R$ (momentum-to-charge…

高能天体物理现象 · 物理学 2015-12-04 Nicola Tomassetti

A measurement with high statistics of the differential energy spectrum of light elements in cosmic rays, in particular, of primary H plus He nuclei, is reported. The spectrum is presented in the energy range from $6$ to $158$ TeV per…

Observations of light isotopes in cosmic rays provide valuable information on their origin and propagation in the Galaxy. Using the data collected by the AMS-01 experiment in the range ~0.2-1.5 GeV/nucleon, we compare the measurements on…

高能天体物理现象 · 物理学 2012-10-30 N. Tomassetti

The rapid rise in the cosmic ray positron fraction above 10 GeV, as measured by PAMELA and AMS, suggests the existence of nearby primary sources of high energy positrons, such as pulsars or annihilating/decaying dark matter. In contrast,…

高能天体物理现象 · 物理学 2014-03-05 Ilias Cholis , Dan Hooper

Secondary cosmic ray fluxes are important probes of the propagation and interaction of high-energy particles in the Galaxy. Recent measurements of primary and secondary cosmic ray nuclei have revealed unexpected spectral features that…

高能天体物理现象 · 物理学 2024-12-19 DAMPE Collaboration , F. Alemanno , C. Altomare , Q. An , P. Azzarello , F. C. T. Barbato , P. Bernardini , X. J. Bi , H. Boutin , I. Cagnoli , M. S. Cai , E. Casilli , E. Catanzani , J. Chang , D. Y. Chen , J. L. Chen , Z. F. Chen , Z. X. Chen , P. Coppin , M. Y. Cui , T. S. Cui , Y. X. Cui , I. De Mitri , F. de Palma , A. Di Giovanni , T. K. Dong , Z. X. Dong , G. Donvito , D. Droz , J. L. Duan , K. K. Duan , R. R. Fan , Y. Z. Fan , F. Fang , K. Fang , C. Q. Feng , L. Feng , J. M. Frieden , P. Fusco , M. Gao , F. Gargano , E. Ghose , K. Gong , Y. Z. Gong , D. Y. Guo , J. H. Guo , S. X. Han , Y. M. Hu , G. S. Huang , X. Y. Huang , Y. Y. Huang , M. Ionica , L. Y. Jiang , Y. Z. Jiang , W. Jiang , J. Kong , A. Kotenko , D. Kyratzis , S. J. Lei , W. H. Li , W. L. Li , X. Li , X. Q. Li , Y. M. Liang , C. M. Liu , H. Liu , J. Liu , S. B. Liu , Y. Liu , F. Loparco , M. Ma , P. X. Ma , T. Ma , X. Y. Ma , G. Marsella , M. N. Mazziotta , D. Mo , X. Y. Niu , A. Parenti , W. X. Peng , X. Y. Peng , C. Perrina , E. Putti-Garcia , R. Qiao , J. N. Rao , R. Sarkar , P. Savina , A. Serpolla , Z. Shangguan , W. H. Shen , Z. Q. Shen , Z. T. Shen , L. Silveri , J. X. Song , M. Stolpovskiy , H. Su , M. Su , H. R. Sun , Z. Y. Sun , A. Surdo , X. J. Teng , A. Tykhonov , J. Z. Wang , L. G. Wang , S. Wang , X. L. Wang , Y. F. Wang , Y. Wang , D. M. Wei , J. J. Wei , Y. F. Wei , D. Wu , J. Wu , S. S. Wu , X. Wu , Z. Q. Xia , E. H. Xu , H. T. Xu , J. Xu , Z. H. Xu , Z. L. Xu , Z. Z. Xu , G. F. Xue , H. B. Yang , P. Yang , Y. Q. Yang , H. J. Yao , Y. H. Yu , Q. Yuan , C. Yue , J. J. Zang , S. X. Zhang , W. Z. Zhang , Yan Zhang , Yi Zhang , Y. J. Zhang , Y. L. Zhang , Y. P. Zhang , Y. Q. Zhang , Z. Zhang , Z. Y. Zhang , C. Zhao , H. Y. Zhao , X. F. Zhao , C. Y. Zhou , Y. Zhu

The observations of the energy spectra of cosmic-ray have revealed complicated structures. Especially, spectral hardenings in the boron-to-carbon and boron-to-oxygen ratios above $\sim 200$ GV has been revealed by AMS-02 and DAMPE…

高能天体物理现象 · 物理学 2023-07-06 Dong-Xu Sun , Pei-Pei Zhang , Yi-Qing Guo , Wei Liu , Qiang Yuan

Since its launch, the Alpha Magnetic Spectrometer-02 (AMS-02) has delivered outstanding quality measurements of the spectra of cosmic-ray (CR) species, $e^{\pm}$, $\bar{p}$, and nuclei (H-Si, S, Fe), which have resulted in a number of…

Recent measurements of the cosmic-ray electron plus positron spectrum by several experiments have confirmed the presence of a break at $\sim\,1$ TeV. The origin of the break is still not clearly understood. In this work, we explore…

高能天体物理现象 · 物理学 2024-10-30 Satyendra Thoudam

In the last few years several experiments have shown that the cosmic ray spectrum below the knee is not a perfect power-law. In particular, the proton and helium spectra show a spectral hardening by ~ 0.1-0.2 in spectral index at particle…

高能天体物理现象 · 物理学 2017-12-27 S. Recchia , S. Gabici

Evidence for a local 'Single Source' of cosmic rays is amassing by way of the recent precise measurements of various cosmic ray energy spectra from the AMS-02 instrument. To observations of individual cosmic ray nuclei, electrons, positrons…

高能天体物理现象 · 物理学 2016-05-05 Anatoly Erlykin , Arnold Wolfendale

The recently published precise spectrum of cosmic ray protons from the Alpha Magnetic Spectrometer has been examined in some detail from the standpoint of a search for deviations from a smooth, simple, power law. We find a significant…

天体物理学 · 物理学 2009-10-31 A. D. Erlykin , S. J. Fatemi , A. W. Wolfendale

Recently, AMS-02 reported their observed results of cosmic rays(CRs). In addition to the AMS-02 data, we add HESS data to estimate the spectra of CR electrons and the diffuse gamma rays above TeV. In the conventional diffusion model, a…

高能天体物理现象 · 物理学 2015-10-06 Ding Chen , Jing Huang , Hong-Bo Jin