Dark Matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the AMS-02 Detector on the International Space Station

The excess of the antiproton flux and the antiproton-to-proton flux ratio beyond the prediction of the collision of ordinary cosmic rays is a unique signal from dark matter models of neutralino annihilation. This excess cannot come from pulsars. We present precision measurements by AMS-02 of the ant...

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Detalles Bibliográficos
Autor principal: Zimmermann, Nikolas
Lenguaje:eng
Publicado: SISSA 2017
Materias:
Astrophysics and Astronomy
Acceso en línea:https://dx.doi.org/10.22323/1.314.0090
http://cds.cern.ch/record/2838145
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author Zimmermann, Nikolas
author_facet Zimmermann, Nikolas
author_sort Zimmermann, Nikolas
collection CERN
description The excess of the antiproton flux and the antiproton-to-proton flux ratio beyond the prediction of the collision of ordinary cosmic rays is a unique signal from dark matter models of neutralino annihilation. This excess cannot come from pulsars. We present precision measurements by AMS-02 of the antiproton flux and the antiproton-to-proton flux ratio in the absolute rigidity range from 1 to 450 GV based on 3.49 × 10 5 antiproton events and 2.42 × 10 9 proton events. Comparison of our results with neutralino annihilation model shows good agreement. We also present the latest results on 16.5 × 10 6 electron and 1.08 × 10 6 positron events measured by the Alpha Magnetic Spectrometer on the International Space Station. The measurement covers the energy range up to 1000 GeV. The measured positron flux and the positron fraction are in agreement with a specific dark matter model with a neutralino mass of 1 TeV
id cern-2838145
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2017
publisher SISSA
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spelling cern-28381452022-10-27T16:08:47Zdoi:10.22323/1.314.0090http://cds.cern.ch/record/2838145engZimmermann, NikolasDark Matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the AMS-02 Detector on the International Space StationAstrophysics and AstronomyThe excess of the antiproton flux and the antiproton-to-proton flux ratio beyond the prediction of the collision of ordinary cosmic rays is a unique signal from dark matter models of neutralino annihilation. This excess cannot come from pulsars. We present precision measurements by AMS-02 of the antiproton flux and the antiproton-to-proton flux ratio in the absolute rigidity range from 1 to 450 GV based on 3.49 × 10 5 antiproton events and 2.42 × 10 9 proton events. Comparison of our results with neutralino annihilation model shows good agreement. We also present the latest results on 16.5 × 10 6 electron and 1.08 × 10 6 positron events measured by the Alpha Magnetic Spectrometer on the International Space Station. The measurement covers the energy range up to 1000 GeV. The measured positron flux and the positron fraction are in agreement with a specific dark matter model with a neutralino mass of 1 TeVThe excess of the antiproton flux and the antiproton-to-proton flux ratio beyond the prediction of the collision of ordinary cosmic rays is a unique signal from dark matter models of neutralino annihilation. This excess cannot come from pulsars. We present precision measurements by AMS-02 of the antiproton flux and the antiproton-to-proton flux ratio in the absolute rigidity range from 1 to 450 GV based on $3.49 \times 10^5$ antiproton events and $2.42 \times 10^9$ proton events. Comparison of our results with neutralino annihilation model shows good agreement.We also present the latest results on $16.5 \times 10^6$ electron and $1.08 \times 10^6$ positron events measured by the Alpha Magnetic Spectrometer on the International Space Station. The measurement covers the energy range up to 1000 GeV. The measured positron flux and the positron fraction are in agreement with a specific dark matter model with a neutralino mass of 1 TeV.SISSAoai:cds.cern.ch:28381452017
spellingShingle Astrophysics and Astronomy
Zimmermann, Nikolas
Dark Matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the AMS-02 Detector on the International Space Station
title Dark Matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the AMS-02 Detector on the International Space Station
title_full Dark Matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the AMS-02 Detector on the International Space Station
title_fullStr Dark Matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the AMS-02 Detector on the International Space Station
title_full_unstemmed Dark Matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the AMS-02 Detector on the International Space Station
title_short Dark Matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the AMS-02 Detector on the International Space Station
title_sort dark matter signal from $\mathrm{e^{+}/e^{-}/\bar{p}}$ with the ams-02 detector on the international space station
topic Astrophysics and Astronomy
url https://dx.doi.org/10.22323/1.314.0090
http://cds.cern.ch/record/2838145
work_keys_str_mv AT zimmermannnikolas darkmattersignalfrommathrmeebarpwiththeams02detectorontheinternationalspacestation

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