Yoann Génolini
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View article: Precision cross-sections for advancing cosmic-ray physics and other applications: A comprehensive programme for the next decade
Precision cross-sections for advancing cosmic-ray physics and other applications: A comprehensive programme for the next decade Open
View article: Field line separation in 3D magnetic turbulence
Field line separation in 3D magnetic turbulence Open
View article: Tidal effects on primordial black hole capture in neutron stars
Tidal effects on primordial black hole capture in neutron stars Open
We revisit the problem of the capture of a primordial black hole (PBH) by a neutron star, accounting for the tidal perturbation from a nearby star or planet. For asteroid-mass PBHs, which could constitute all of the dark matter in the univ…
View article: Precision cross-sections for advancing cosmic-ray physics. Input to the 2026 ESPPU from the XSCRC community
Precision cross-sections for advancing cosmic-ray physics. Input to the 2026 ESPPU from the XSCRC community Open
The latest generation of cosmic-ray direct detection experiments is providing a wealth of high-precision data, stimulating a very rich and active debate in the community on the related strong discovery and constraining potentials on many t…
View article: GeV-scale dark matter with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>p</mml:mi></mml:math>-wave Breit-Wigner enhanced annihilation
GeV-scale dark matter with -wave Breit-Wigner enhanced annihilation Open
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 i…
View article: GeV-scale dark matter with $p$-wave Breit-Wigner enhanced annihilation
GeV-scale dark matter with $p$-wave Breit-Wigner enhanced annihilation Open
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 ma…
View article: ASCII files of f_abc coefficients for Li to Si (Z=3-14) GCR species
ASCII files of f_abc coefficients for Li to Si (Z=3-14) GCR species Open
Full ASCII tables of f_abc coefficients, ranking the most important reactions for the production of for Li to Si GCR species (one file per GCR element). These coefficients are defined and these files are used in the paper "Current status a…
View article: ASCII files of f_abc coefficients for Li to Si (Z=3-14) GCR species
ASCII files of f_abc coefficients for Li to Si (Z=3-14) GCR species Open
Full ASCII tables of f_abc coefficients, ranking the most important reactions for the production of for Li to Si GCR species (one file per GCR element). These coefficients are defined and these files are used in the paper "Current status a…
View article: Current status and desired accuracy of the isotopic production cross-sections relevant to astrophysics of cosmic rays II. Fluorine to Silicon (and updated LiBeB)
Current status and desired accuracy of the isotopic production cross-sections relevant to astrophysics of cosmic rays II. Fluorine to Silicon (and updated LiBeB) Open
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 mat…
View article: The importance of Fe fragmentation for LiBeB analyses
The importance of Fe fragmentation for LiBeB analyses Open
Context. High-precision data from AMS-02 on Li, Be, and B provide the best constraints on Galactic cosmic-ray transport parameters. Aims. We re-evaluate the impact of Fe fragmentation on the Li, Be, and B modelling. We discuss the conseque…
View article: Transport parameters from AMS-02 F/Si data and fluorine source abundance
Transport parameters from AMS-02 F/Si data and fluorine source abundance Open
The AMS-02 collaboration recently released cosmic-ray F/Si data of unprecedented accuracy. Cosmic-ray (CR) fluorine is predominantly produced by fragmentation of heavier progenitors, while silicon is mostly accelerated at source. This rati…
View article: AMS-02 antiprotons and dark matter: Trimmed hints and robust bounds
AMS-02 antiprotons and dark matter: Trimmed hints and robust bounds Open
Based on 4 yr AMS-02 antiproton ( \bar{p} ) 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 trea…
View article: Report on 2202.03076v2
Report on 2202.03076v2 Open
Based on 4 yr AMS-02 antiproton (p) 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 expe…
View article: Report on 2202.03076v1
Report on 2202.03076v1 Open
Based on 4 yr AMS-02 antiproton (p) 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 expe…
View article: The importance of Fe fragmentation for LiBeB analyses: Is a Li primary\n source needed to explain AMS-02 data?
The importance of Fe fragmentation for LiBeB analyses: Is a Li primary\n source needed to explain AMS-02 data? Open
High-precision data from AMS-02 on Li, Be, and B provide the best constraints\non Galactic cosmic-ray transport parameters. We re-evaluate the impact of Fe\nfragmentation on the Li, Be, and B modelling. We discuss the consequences on\nthe …
View article: The importance of Fe fragmentation for LiBeB analyses: Is a Li primary source needed to explain AMS-02 data?
The importance of Fe fragmentation for LiBeB analyses: Is a Li primary source needed to explain AMS-02 data? Open
High-precision data from AMS-02 on Li, Be, and B provide the best constraints on Galactic cosmic-ray transport parameters. We re-evaluate the impact of Fe fragmentation on the Li, Be, and B modelling. We discuss the consequences on the tra…
View article: Report on 2202.03076v1
Report on 2202.03076v1 Open
Based on 4 yr AMS-02 antiproton (p) 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 expe…
View article: Improved Limits on Cosmogenic Fluxes from Ultra-High Energy Cosmic Rays
Improved Limits on Cosmogenic Fluxes from Ultra-High Energy Cosmic Rays Open
Ultra-high energy cosmic rays (UHE CRs) interacting with the cosmic radiation background produce two cosmogenic messengers: neutrinos with energies in the EeV range and gamma rays accumulating in the GeV-TeV range. The most optimistic scen…
View article: Combined analysis of AMS-02 secondary-to-primary ratios: universality of cosmic-ray propagation and consistency of nuclear cross sections
Combined analysis of AMS-02 secondary-to-primary ratios: universality of cosmic-ray propagation and consistency of nuclear cross sections Open
The AMS-02 collaboration released several secondary-to-primary ratios of unprecedented accuracy. These ratios can be used to test the universality of propagation for different species, and also to test the presence of breaks in the diffusi…
View article: Local Turbulence and the Dipole Anisotropy of Galactic Cosmic Rays
Local Turbulence and the Dipole Anisotropy of Galactic Cosmic Rays Open
The dipole anisotropy of multi-TeV cosmic rays exhibits a strong energy dependence that is at odds with the predictions of standard isotropic diffusion models. It has been argued that the observed variation in amplitude and phase is a cons…
View article: New cosmic ray MIN-MED-MAX benchmark models for dark matter indirect signatures
New cosmic ray MIN-MED-MAX benchmark models for dark matter indirect signatures Open
Galactic charged cosmic rays, notably 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…
View article: Revisiting primordial black hole capture into neutron stars
Revisiting primordial black hole capture into neutron stars Open
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 captur…
View article: Galactic halo size in the light of recent AMS-02 data
Galactic halo size in the light of recent AMS-02 data Open
Context. The vertical diffusive halo size of the Galaxy, L, is a key parameter for dark matter indirect searches. It can be better determined thanks to recent AMS-02 data. Aims. We set constraints on L from Be/B and 10Be/Be data, and we pe…
View article: Is the B/C slope in AMS-02 data actually telling us something about the diffusion coefficient slope?
Is the B/C slope in AMS-02 data actually telling us something about the diffusion coefficient slope? Open
The measurement of the boron to carbon flux ratio provides relevant insights on the propagation of cosmic rays in the Galaxy. There is a common misconception about the fact that high-energy B/C data from AMS-02 directly provides the slope …
View article: Fitting B/C cosmic-ray data in the AMS-02 era
Fitting B/C cosmic-ray data in the AMS-02 era Open
International audience
View article: Cosmic ray transport from AMS-02 B/C data: benchmark models and interpretation
Cosmic ray transport from AMS-02 B/C data: benchmark models and interpretation Open
We present 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 V 3.5 propagation code. We employ a new fitting procedure, cautiously taking into accou…
View article: AMS-02 Antiprotons are Consistent with a Secondary Astrophysical Origin
AMS-02 Antiprotons are Consistent with a Secondary Astrophysical Origin Open
The AMS-02 experiment has ushered cosmic-ray physics into precision era. Using the USINE code and an improved methodology, we extract the cosmic-ray transport parameters from the B/C data. We then derive a robust range of predictions for t…
View article: Fitting B/C cosmic-ray data in the AMS-02 era: a cookbook
Fitting B/C cosmic-ray data in the AMS-02 era: a cookbook Open
Context. AMS-02 on the International Space Station has been releasing data of unprecedented accuracy. This poses new challenges for their interpretation. Aims. We refine the methodology to get a statistically sound determination of the cos…
View article: New Analysis of Neutron Star Constraints on Asymmetric Dark Matter
New Analysis of Neutron Star Constraints on Asymmetric Dark Matter Open
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 tra…
View article: Current status and desired precision of the isotopic production cross sections relevant to astrophysics of cosmic rays: Li, Be, B, C, and N
Current status and desired precision of the isotopic production cross sections relevant to astrophysics of cosmic rays: Li, Be, B, C, and N Open
The precision of the current generation of cosmic-ray (CR) experiments, such as AMS-02, PAMELA, CALET, and ISS-CREAM, is now reaching ≈1-3% in a wide range in energy per nucleon from GeV/nucleon to multi-TeV/nucleon. Their correct interpre…