Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Genolini, Yoann"'
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
Publikováno v:
Phys. Rev. C 109, 064914 (2024)
High-precision cosmic-ray data from ongoing and recent past experiments (Voyager, ACE-CRIS, PAMELA, ATIC, CREAM, NUCLEON, AMS-02, CALET, DAMPE) are being released in the tens of MeV/n to multi-TeV/n energy range. Astrophysical and dark matter interpr
Externí odkaz:
http://arxiv.org/abs/2307.06798
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
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
Publikováno v:
Phys. Rev. D 102, 083004 (2020)
Primordial black holes (PBH), produced through a variety of processes in the early universe, could fill galactic halos accounting for a fraction or the totality of the dark matter. In particular, PBH with sub-stellar masses could be captured by stars
Externí odkaz:
http://arxiv.org/abs/2006.16975
Publikováno v:
A&A 639, A131 (2020)
The AMS-02 experiment measured several secondary-to-primary ratios enabling a detailed study of Galactic cosmic-ray transport. We constrain previously derived benchmark scenarios (based on AMS-02 B/C data only) using other secondary-to-primary ratios
Externí odkaz:
http://arxiv.org/abs/2002.11406
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
Autor:
Genolini, Yoann
Il y a tout juste cent ans que les premières mesures du taux d'ionisation de l'air ont dévoilé que la terre est sans cesse bombardée par une pluie de particules énergétiques provenant du Cosmos. D'un point de vue astrophysique, l'origine de ces
Externí odkaz:
http://www.theses.fr/2017GREAY049/document
Publikováno v:
JCAP 2019 (2019) no.05, 035
Due to their extreme density and low temperature, neutron stars (NS) are efficient probes to unveil interactions between standard model and dark matter (DM) particles. From elastic scatterings on NS material, DM can get gravitationally trapped by the
Externí odkaz:
http://arxiv.org/abs/1812.08773