406 citations · 5.5k across the 130 of their papers we have counts for
95 papers · 1 filter
LMC-Perturbed LZ Dark Matter Landscape
Nassim Bozorgnia, Samantha Contreras, Graciela B. Gelmini +3
The local dark matter (DM) velocity distribution is significantly altered by the gravitational impact of the Large Magellanic Cloud (LMC), which creates a high-velocity tail. We ev…
Unfolding the low-energy reactor neutrino flux from CENS data with a finite Dirac sum
Muping Chen, Graciela Gelmini, Danny Marfatia +1
We present a novel method to analyze coherent elastic neutrino--nucleus scattering (CENS) data to extract the reactor antineutrino spectrum below the inverse beta decay threshol…
Halo-Independent Quantum Sensor Probes of Low-Velocity Dark Matter
Muping Chen, Graciela B. Gelmini, Volodymyr Takhistov +1
We present a halo-independent framework for sub-GeV dark matter (DM) direct detection using quantum sensors with sub-eV energy thresholds. Such detectors enable access to low DM ve…
Multiple Populations of Same Sterile Neutrino as Dark Matter
Muping Chen, Graciela B. Gelmini, Philip Lu +1
Sterile neutrinos produced in the early Universe that mix with active neutrinos of the Standard Model are typically considered to consist of a single population resulting from one…
Gravitational Wave Detection With Plasma Haloscopes
Rodolfo Capdevilla, Graciela B. Gelmini, Jonah Hyman +2
Searches for high frequency gravitational waves using cavities based on the Gertsenshtein effect were recently proposed, building off existing axion dark matter experiments. In par…
Spin-dependent dark matter interactions at loop-level in Ar and Xe
Nassim Bozorgnia, Muping Chen, Graciela B. Gelmini +2
Xenon and argon are the two noble gases used in tonne scale dark matter direct detection experiments. We compare the detection capability of both target elements for interactions d…
Primordial Black Hole Sterile Neutrinogenesis: Sterile Neutrino Dark Matter Production Independent of Couplings
Muping Chen, Graciela B. Gelmini, Philip Lu +1
Sterile neutrinos (s) are well-motivated and actively searched for hypothetical neutral particles that would mix with the Standard Model active neutrinos. They are considered…
Catastrogenesis with unstable ALPs as the origin of the NANOGrav 15 yr gravitational wave signal
Graciela B. Gelmini, Jonah Hyman
In post-inflation axion-like particle (ALP) models, a stable domain wall network forms if the model's potential has multiple minima. This system must annihilate before dominating t…
Primordial black hole dark matter from catastrogenesis with unstable pseudo-Goldstone bosons
Graciela B. Gelmini, Jonah Hyman, Anna Simpson +1
We propose a new scenario for the formation of asteroid-mass primordial black holes (PBHs). Our mechanism is based on the annihilation of the string-wall network associated with th…
Halo-Independent Dark Matter Electron Scattering Analysis with In-Medium Effects
Muping Chen, Graciela B. Gelmini, Volodymyr Takhistov
Dark matter (DM)-electron scattering is a prime target of a number of direct DM detection experiments and constitutes a promising avenue for exploring interactions of DM in the sub…
Report of the Topical Group on Particle Dark Matter for Snowmass 2021
Jodi Cooley, Tongyan Lin, W. Hugh Lippincott +71
This report summarizes the findings of the CF1 Topical Subgroup to Snowmass 2021, which was focused on particle dark matter. One of the most important scientific goals of the next…
Catastrogenesis: DM, GWs, and PBHs from ALP string-wall networks
Graciela B. Gelmini, Anna Simpson, Edoardo Vitagliano
Axion-like particles (ALPs), a compelling candidate for dark matter (DM), are the pseudo Nambu-Goldstone bosons of a spontaneously and explicitly broken global symmetry. Whe…
Cosmological Dependence of Sterile Neutrino Dark Matter With Self-Interacting Neutrinos
Carlos Chichiri, Graciela B. Gelmini, Philip Lu +1
Unexplored interactions of neutrinos could be the key to understanding the nature of the dark matter (DM). In particular, active neutrinos with new self-interactions can produce ke…
Halo-Independent Analysis of Direct Dark Matter Detection Through Electron Scattering
Muping Chen, Graciela B. Gelmini, Volodymyr Takhistov
Sub-GeV mass dark matter particles whose collisions with nuclei would not deposit sufficient energy to be detected, could instead be revealed through their interaction with electro…
Gravitational waves from axion-like particle cosmic string-wall networks
Graciela B. Gelmini, Anna Simpson, Edoardo Vitagliano
Axion-like particles (ALPs) are a compelling candidate for dark matter (DM), whose production is associated with the formation of a string-wall network. If walls bounded by strings…
Gravitational wave signatures from discrete flavor symmetries
Graciela B. Gelmini, Silvia Pascoli, Edoardo Vitagliano +1
Non-Abelian discrete symmetries have been widely used to explain the patterns of lepton masses and flavor mixing. In these models, a given symmetry is assumed at a high scale and t…
Scalar Direct Detection: In-Medium Effects
Graciela B. Gelmini, Volodymyr Takhistov, Edoardo Vitagliano
A simple extension of the Standard Model consists of a scalar field that can potentially constitute the dark matter (DM). Significant attention has been devoted to probing light $\…
Note on Thermalization of Non-resonantly Produced Sterile Neutrinos
Graciela B. Gelmini, Philip Lu, Volodymyr Takhistov
Using an analytic treatment, we discuss the parameter regions of large active-sterile neutrino mixing angles where sterile neutrinos produced in non-resonant flavour oscillations c…
Probing dark photons with plasma haloscopes
Graciela B. Gelmini, Alexander J. Millar, Volodymyr Takhistov +1
Dark photons (DPs) produced in the early Universe are well-motivated dark matter (DM) candidates. We show that the recently proposed tunable plasma haloscopes are particularly adva…
Big Bang Nucleosynthesis constraints on sterile neutrino and lepton asymmetry of the Universe
Graciela B. Gelmini, Masahiro Kawasaki, Alexander Kusenko +2
We consider the cosmological effects of sterile neutrinos with the masses of MeV. The decay of sterile neutrinos changes the thermal history of the Universe and affects…
Cosmological Dependence of Resonantly Produced Sterile Neutrinos
Graciela B. Gelmini, Philip Lu, Volodymyr Takhistov
The detection of a sterile neutrino could constitute the first observation of a particle that could have been produced before Big-Bang Nucleosynthesis (BBN), and could provide info…
Blois 2019: highlights and outlook
Graciela B. Gelmini
This is an idiosyncratic account of the main results presented at the 31st Rencontres de Blois, which took place from June 2nd to June 7th, 2019 in the Castle of Blois, France.
Cosmological Dependence of Non-resonantly Produced Sterile Neutrinos
Graciela B. Gelmini, Philip Lu, Volodymyr Takhistov
We discuss how a laboratory detection of a sterile neutrino not only would constitute a fundamental discovery of a new particle, but could also provide an indication of the evoluti…
Visible Sterile Neutrinos as the Earliest Relic Probes of Cosmology
Graciela B. Gelmini, Philip Lu, Volodymyr Takhistov
A laboratory detection of a sterile neutrino could provide the first indication of the evolution of the Universe before Big-Bang Nucleosynthesis (BBN), an epoch yet untested. Such…