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CERN Document Server 找到 59 筆記錄  1 - 10下一個最後  跳到記錄: 檢索需時 0.80 秒. 
1.
Properties of Cosmic Lithium Isotopes Measured by the Alpha Magnetic Spectrometer / AMS Collaboration
We present the first measurement of cosmic-ray fluxes of  Li6 and  Li7 isotopes in the rigidity range from 1.9 to 25 GV. The measurements are based on 9.7×105  Li6 and 1.04×106  Li7 nuclei collected by the Alpha Magnetic Spectrometer on the International Space Station from May 2011 to October 2023. [...]
2025 - 8 p. - Published in : Phys. Rev. Lett. 134 (2025) 201001 Fulltext: PDF;
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2.
Antiprotons and Elementary Particles over a Solar Cycle: Results from the Alpha Magnetic Spectrometer / AMS Collaboration
We present results over an 11-year Solar cycle of cosmic antiprotons based on 1.1×106 events in the rigidity range from 1.00 to 41.9 GV. The p¯ fluxes exhibit distinct properties. [...]
2025 - 12 p. - Published in : Phys. Rev. Lett. 134 (2025) 051002 Fulltext: PDF;
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3.
Solar Modulation of Cosmic Nuclei over a Solar Cycle: Results from the Alpha Magnetic Spectrometer / AMS Collaboration
We report the properties of precision time structures of cosmic nuclei He, Li, Be, B, C, N, and O fluxes over an 11-year solar cycle from May 2011 to November 2022 in the rigidity range from 1.92 to 60.3 GV. The nuclei fluxes show similar but not identical time variations with amplitudes decreasing with increasing rigidity. [...]
2025 - 8 p. - Published in : Phys. Rev. Lett. 134 (2025) 051001 Fulltext: PDF;
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4.
Properties of Cosmic Deuterons Measured by the Alpha Magnetic Spectrometer / AMS Collaboration
Precision measurements by the Alpha Magnetic Spectrometer (AMS) on the International Space Station of the deuteron (D) flux are presented. The measurements are based on 21×106 D nuclei in the rigidity range from 1.9 to 21 GV collected from May 2011 to April 2021. [...]
2024 - 8 p. - Published in : Phys. Rev. Lett. 132 (2024) 261001 Fulltext: PDF;
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5.
CEPC Technical Design Report: Accelerator / CEPC Study Group Collaboration
The Circular Electron Positron Collider (CEPC) is a large scientific project initiated and hosted by China, fostered through extensive collaboration with international partners. The complex comprises four accelerators: a 30 GeV Linac, a 1.1 GeV Damping Ring, a Booster capable of achieving energies up to 180 GeV, and a Collider operating at varying energy modes (Z, W, H, and ttbar). [...]
arXiv:2312.14363; IHEP-CEPC-DR-2023-01; IHEP-AC-2023-01.- 2024-12-16 - 9 p. - Published in : Radiat. Detect. Technol. Methods: 8 (2024) , no. 1, pp. 1-1105 Fulltext: 2312.14363 - PDF; Publication - PDF; document - PDF;
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6.
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 / AMS Collaboration
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 6.8×106 positron and electron events is presented. The very accurate data show that the positron fraction is steadily increasing from 10 to ∼250  GeV, but, from 20 to 250 GeV, the slope decreases by an order of magnitude. [...]
2013 - 10 p. - Published in : Phys. Rev. Lett. 110 (2013) 141102 External links: Interactions.org article; Symmetry Magazine article; Press Release
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7.
Temporal Structures in Positron Spectra and Charge-Sign Effects in Galactic Cosmic Rays / AMS Collaboration
We present the precision measurements of 11 years of daily cosmic positron fluxes in the rigidity range from 1.00 to 41.9 GV based on 3.4×106 positrons collected with the Alpha Magnetic Spectrometer (AMS) aboard the International Space Station. The positron fluxes show distinctly different time variations from the electron fluxes at short and long timescales. [...]
2023 - 10 p. - Published in : Phys. Rev. Lett. 131 (2023) 151002 Fulltext: PDF;
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8.
Unique Properties of Cosmic Rays: Results from the Alpha Magnetic spectrometer / Choutko, Vitali (MIT) ; Yan, Qi (MIT)
We report the properties of cosmic ray nuclei from protons to nickel (Z=1–14, 16, 26, and 28) in the rigidity range from 2 GV to 3 TV collected by the Alpha Magnetic Spectrometer on the International Space Station from May 19, 2011 to May 6, 2021. We found that the primary cosmic rays He-C-O-Fe-Ni, and Ne-Mg-Si-S belong to two different classes of cosmic rays. [...]
2023 - 19 p. - Published in : PoS ECRS (2023) 012 Fulltext: PDF; External links: Fulltext; Fulltext
In : 27th European Cosmic Ray Symposium, Nijmegen, Nl, 25 - 29 Jul 2022
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9.
Unique Properties of Primary Cosmic Rays: Results from the Alpha Magnetic Spectrometer / Yan, Qi (MIT) ; Choutkoa, Vitaly (MIT)
We present the latest results on primary cosmic rays Proton (p), Helium (He), Carbon(C), Oxygen (O), Neon (Ne), Magnesium (Mg), Silicon (Si), Sulfur (S), Iron (Fe), and Nickel (Ni) with the data collected by the Alpha Magnetic Spectrometer (AMS) during the first 10 years of operation on the International Space Station from May 19, 2011 to May 6, 2021. We found that the primary cosmic rays He-C-O and Ne-Mg-Si belong to the two different classes of cosmic rays. [...]
2022 - 6 p. - Published in : 10.22323/1.414.0101 Fulltext: PDF;
In : 41st International Conference on High Energy Physics (ICHEP 2022), Bologna, Italy, 6 - 13 Jul 2022, pp.101
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10.
Properties of Heavy Secondary Fluorine Cosmic Rays Results from the Alpha Magnetic Spectrometer / Yan, Qi (MIT) ; Choutko, Vitaly (MIT)
Precise knowledge of the charge and rigidity dependence of the secondary cosmic ray fluxes and the secondary to primary flux ratios is essential in the understanding of cosmic ray propagation. We report the properties of secondary cosmic ray fluorine F in the rigidity R range 2.15 GV to 2.9 TV based on 0.29 million events collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. [...]
2021 - 8 p. - Published in : PoS ICRC2021 (2021) 104 Fulltext: PDF;
In : 37th International Cosmic Ray Conference (ICRC 2021), Berlin, Germany, 15 - 22 Jul 2021, pp.104
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