Zobrazeno 1 - 10
of 120
pro vyhledávání: '"SALATI, PIERRE"'
Publikováno v:
Physical Review D 110, 023039 (2024)
We consider a light scalar dark matter candidate with mass in the GeV range whose $p$-wave annihilation is enhanced through a Breit-Wigner resonance. The annihilation actually proceeds in the $s$-channel via a dark photon mediator whose mass is nearl
Externí odkaz:
http://arxiv.org/abs/2401.02513
Autor:
Salati, Pierre
Dark matter particles could be the major component of the haloes of galaxies. Their mutual annihilations or decays would produce an indirect signature under the form of high-energy cosmic-rays. The focus of this presentation is on antimatter species,
Externí odkaz:
http://arxiv.org/abs/2210.07166
Autor:
Calore, Francesca, Cirelli, Marco, Derome, Laurent, Genolini, Yoann, Maurin, David, Salati, Pierre, Serpico, Pasquale D.
Publikováno v:
SciPost Phys. 12, 163 (2022)
Based on 4 yr AMS-02 antiproton data, we present bounds on the dark matter (DM) annihilation cross section vs. mass for some representative final state channels. We use recent cosmic-ray propagation models, a realistic treatment of experimental and t
Externí odkaz:
http://arxiv.org/abs/2202.03076
Publikováno v:
JCAP08(2021)053
Primordial black holes may have been produced in the early stages of the thermal history of the Universe after cosmic inflation. If so, dark matter in the form of elementary particles can be subsequently accreted around these objects, in particular w
Externí odkaz:
http://arxiv.org/abs/2106.07480
Autor:
Génolini, Yoann, Boudaud, Mathieu, Cirelli, Marco, Derome, Laurent, Lavalle, Julien, Maurin, David, Salati, Pierre, Weinrich, Nathanael
Publikováno v:
Phys. Rev. D 104, 083005 (2021)
Galactic charged cosmic rays (notably electrons, positrons, antiprotons and light antinuclei) are powerful probes of dark matter annihilation or decay, in particular for candidates heavier than a few MeV or tiny evaporating primordial black holes. Re
Externí odkaz:
http://arxiv.org/abs/2103.04108
Autor:
Boudaud, Mathieu, Génolini, Yoann, Derome, Laurent, Lavalle, Julien, Maurin, David, Salati, Pierre, Serpico, Pasquale D.
Publikováno v:
Phys. Rev. Research 2, 023022 (2020)
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 for sever
Externí odkaz:
http://arxiv.org/abs/1906.07119
Autor:
Genolini, Yoann, Boudaud, Mathieu, Batista, Pedro Ivo, Caroff, Sami, Derome, Laurent, Lavalle, Julien, Marcowith, Alexandre, Maurin, David, Poireau, Vincent, Poulin, Vivian, Rosier, Sylvie, Salati, Pierre, Serpico, Pasquale Dario, Vecchi, Manuela
Publikováno v:
Phys. Rev. D 99, 123028 (2019)
This article aims at establishing new benchmark scenarios for Galactic cosmic-ray propagation in the GV-TV rigidity range, based on fits to the AMS-02 B/C data with the USINE v3.5 propagation code. We employ a new fitting procedure, cautiously taking
Externí odkaz:
http://arxiv.org/abs/1904.08917
Publikováno v:
Phys. Rev. D 99, 023016 (2019)
We discuss the origin of the anti-helium-3 and -4 events possibly detected by AMS-02. Using up-to-date semi-analytical tools, we show that spallation from primary hydrogen and helium nuclei onto the ISM predicts a $\overline{{}^3{\rm He}}$ flux typic
Externí odkaz:
http://arxiv.org/abs/1808.08961
Autor:
Genolini, Yoann, Serpico, Pasquale D., Boudaud, Mathieu, Caroff, Sami, Poulin, Vivian, Derome, Laurent, Lavalle, Julien, Maurin, David, Poireau, Vincent, Rosier, Sylvie, Salati, Pierre, Vecchi, Manuela
Publikováno v:
Phys. Rev. Lett. 119, 241101 (2017)
Using cosmic-ray boron to carbon ratio (B/C) data recently released by the AMS-02 experiment, we find tantalizing indications ({\it decisive evidence}, in Bayesian terms) in favor of a diffusive origin for the broken power-law spectra found in proton
Externí odkaz:
http://arxiv.org/abs/1706.09812
Dark matter particles could annihilate into light and metastable mediators subsequently decaying far away from where they are produced. In this scenario, the indirect signatures of dark matter are altered with respect to the conventional situation wh
Externí odkaz:
http://arxiv.org/abs/1706.08543