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CERN Document Server 45 registres trobats  1 - 10següentfinal  anar al registre: La cerca s'ha fet en 0.63 segons. 
1.
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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2.
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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3.
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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4.
Properties of Cosmic-Ray Sulfur and Determination of the Composition of Primary Cosmic-Ray Carbon, Neon, Magnesium, and Sulfur: Ten-Year Results from the Alpha Magnetic Spectrometer / AMS Collaboration
We report the properties of primary cosmic-ray sulfur (S) in the rigidity range 2.15 GV to 3.0 TV based on 0.38×106 sulfur nuclei collected by the Alpha Magnetic Spectrometer experiment (AMS). We observed that above 90 GV the rigidity dependence of the S flux is identical to the rigidity dependence of Ne-Mg-Si fluxes, which is different from the rigidity dependence of the He-C-O-Fe fluxes. [...]
2023 - 9 p. - Published in : Phys. Rev. Lett. 130 (2023) 211002 Fulltext: PDF;
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5.
Temporal Structures in Electron Spectra and Charge Sign Effects in Galactic Cosmic Rays / AMS Collaboration
We present the precision measurements of 11 years of daily cosmic electron fluxes in the rigidity interval from 1.00 to 41.9 GV based on 2.0×108 electrons collected with the Alpha Magnetic Spectrometer (AMS) aboard the International Space Station. The electron fluxes exhibit variations on multiple timescales. [...]
2023 - 11 p. - Published in : Phys. Rev. Lett. 130 (2023) 161001 Fulltext: PDF;
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6.
Observation of Z>2 trapped nuclei by AMS on ISS / Valencia-Otero, Martha (Taiwan, Natl. Central U.) ; Giovacchini, Francesca (Madrid, CIEMAT) ; Oliva, Alberto (INFN, Bologna) /AMS Collaboration
The Alpha Magnetic Spectrometer (AMS-02) is a high energy particle physics experiment operating continuously aboard the International Space Station (ISS) since the 19th of May of 2011. A component of trapped Z>2 ions located in the South Atlantic Anomaly (SAA) has been detected traversing the instrument both in down-going and up-going directions..
SISSA, 2022 - 6 p. - Published in : PoS ICRC2021 (2022) 1288 Fulltext: PDF;
In : 37th International Cosmic Ray Conference (ICRC 2021), Berlin, Germany, 15 - 22 Jul 2021, pp.1288
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7.
Properties of Daily Helium Fluxes / AMS Collaboration
We present the precision measurement of 2824 daily helium fluxes in cosmic rays from May 20, 2011 to October 29, 2019 in the rigidity interval from 1.71 to 100 GV based on 7.6×108 helium nuclei collected with the Alpha Magnetic Spectrometer (AMS) aboard the International Space Station. The helium flux and the helium to proton flux ratio exhibit variations on multiple timescales. [...]
2022 - 10 p. - Published in : Phys. Rev. Lett. 128 (2022) 231102 Fulltext: PDF;
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8.
The AMS-02 RICH detector: Status and physics results / Giovacchini, F (Madrid, CIEMAT) ; Casaus, J (Madrid, CIEMAT) ; Oliva, A (Madrid, CIEMAT) /AMS-02 RICH Collaboration
The Alpha Magnetic Spectrometer (AMS-02) is a high-energy particle physics magnetic spectrometer installed on the International Space Station since May 2011, and operating continuously since then. Because of its large acceptance, long exposure time and particle identification capabilities, AMS-02 measures cosmic ray (CR) fluxes in the kinetic energy range between a fraction of GeV/n to multi-TeV/n with unprecedented precision. [...]
2020 - 4 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 952 (2020) 161797
In : 10th International Workshop on Ring Imaging Cherenkov Detectors, Moscow, Russia, 29 Jul - 4 Aug 2018, pp.161797
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9.
Periodicities in the Daily Proton Fluxes from 2011 to 2019 Measured by the Alpha Magnetic Spectrometer on the International Space Station from 1 to 100 GV / AMS Collaboration
We present the precision measurement of the daily proton fluxes in cosmic rays from May 20, 2011 to October 29, 2019 (a total of 2824 days or 114 Bartels rotations) in the rigidity interval from 1 to 100 GV based on 5.5×109 protons collected with the Alpha Magnetic Spectrometer aboard the International Space Station. The proton fluxes exhibit variations on multiple timescales. [...]
2021 - 8 p. - Published in : Phys. Rev. Lett. 127 (2021) 271102 Fulltext: PDF;
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10.
Properties of a New Group of Cosmic Nuclei: Results from the Alpha Magnetic Spectrometer on Sodium, Aluminum, and Nitrogen / AMS Collaboration
We report the properties of sodium (Na) and aluminum (Al) cosmic rays in the rigidity range 2.15 GV to 3.0 TV based on 0.46 million sodium and 0.51 million aluminum nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. We found that Na and Al, together with nitrogen (N), belong to a distinct cosmic ray group. [...]
2021 - 9 p. - Published in : Phys. Rev. Lett. 127 (2021) 021101 Fulltext: PDF;
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CERN Document Server : 45 registres trobats   1 - 10següentfinal  anar al registre:
Vegeu també: autors amb noms similars
3 Oliva, A.
5 Oliva, Alberto
1 Oliva, Alejandro
1 Oliva, Armand
2 Oliva, Assensi
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