Amin Aboubrahim
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View article: Upper limits on dark energy-dark matter interaction from DESI DR2 in a field-theoretic analysis
Upper limits on dark energy-dark matter interaction from DESI DR2 in a field-theoretic analysis Open
One of the important issues both in particle physics and cosmology relates to whether dark energy is a cosmological constant Λ, or is dynamical in nature such as quintessence. In this work, we discuss a model of quintessence interacting wi…
View article: The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics Open
View article: Upper limits on dark energy-dark matter interaction from DESI DR2 in a field-theoretic analysis
Upper limits on dark energy-dark matter interaction from DESI DR2 in a field-theoretic analysis Open
One of the important issues both in particle physics and cosmology relates to whether dark energy is a cosmological constant $Λ$, or is dynamical in nature such as quintessence. In this work, we discuss a model of quintessence interacting …
View article: Interacting ultralight dark matter and dark energy and fits to cosmological data in a field theory approach
Interacting ultralight dark matter and dark energy and fits to cosmological data in a field theory approach Open
The description of dark matter as a pressure-less fluid and of dark energy as a cosmological constant, both minimally coupled to gravity, constitutes the basis of the concordance ΛCDM model. However, the concordance model is based on using…
View article: Interacting ultralight dark matter and dark energy and fits to cosmological data in a field theory approach
Interacting ultralight dark matter and dark energy and fits to cosmological data in a field theory approach Open
The description of dark matter as a pressure-less fluid and of dark energy as a cosmological constant, both minimally coupled to gravity, constitutes the basis of the concordance $Λ\text{CDM}$ model. However, the concordance model is based…
View article: Forbidden dark matter annihilation into leptons with full collision terms
Forbidden dark matter annihilation into leptons with full collision terms Open
The standard approach of calculating the relic density of thermally produced dark matter based on the assumption of kinetic equilibrium is known to fail for forbidden dark matter models since only the high momentum tail of the dark matter …
View article: Forbidden dark matter annihilation into leptons with full collision terms
Forbidden dark matter annihilation into leptons with full collision terms Open
The standard approach of calculating the relic density of thermally produced dark matter based on the assumption of kinetic equilibrium is known to fail for forbidden dark matter models since only the high momentum tail of the dark matter …
View article: Combined constraints on dark photons and discovery prospects at the LHC and the Forward Physics Facility
Combined constraints on dark photons and discovery prospects at the LHC and the Forward Physics Facility Open
View article: TF08 Snowmass Report: BSM Model Building
TF08 Snowmass Report: BSM Model Building Open
We summarize the state of Beyond the Standard Model (BSM) model building in particle physics for Snowmass 2021, focusing mainly on several whitepaper contributions to BSM model building (TF08) and closely related areas.
View article: Report of the Topical Group on Cosmic Probes of Fundamental Physics for for Snowmass 2021
Report of the Topical Group on Cosmic Probes of Fundamental Physics for for Snowmass 2021 Open
Cosmic Probes of Fundamental Physics take two primary forms: Very high energy particles (cosmic rays, neutrinos, and gamma rays) and gravitational waves. Already today, these probes give access to fundamental physics not available by any o…
View article: A tower of hidden sectors: a general treatment and physics implications
A tower of hidden sectors: a general treatment and physics implications Open
View article: Annual modulation of event rate and electron recoil energy in inelastic scattering direct detection experiments
Annual modulation of event rate and electron recoil energy in inelastic scattering direct detection experiments Open
In 2020 the XENON1T experiment observed an excess of events with an electron recoil energy $E_R$ in the range of $2\,$--$\,3\,$keV. Such an excess can arise from a variety of sources such as solar axions or a neutrino magnetic moment, but …
View article: A tower of hidden sectors: a general treatment and physics implications
A tower of hidden sectors: a general treatment and physics implications Open
An analysis of a tower of hidden sectors coupled to each other, with one of these hidden sectors coupled to the visible sector, is given and the implications of such couplings on physics in the visible sector are investigated. Thus the ana…
View article: Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies
Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies Open
View article: Analyzing the Hubble tension through hidden sector dynamics in the early universe
Analyzing the Hubble tension through hidden sector dynamics in the early universe Open
The recent analysis from the SH0ES collaboration has confirmed the existence of a Hubble tension between measurements at high redshift ( z > 1000) and at low redshift ( z < 1) at the 5 σ level with the low redshift measurement giving a hig…
View article: Tests of gluino-driven radiative breaking of the electroweak symmetry at the LHC
Tests of gluino-driven radiative breaking of the electroweak symmetry at the LHC Open
The recent muon g − 2 result from Fermilab combined with the Brookhaven result, strongly points to new physics beyond the Standard Model which can be well described by the electroweak sector of supersymmetry if the masses of the sleptons a…
View article: Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies
Cosmology intertwined: A review of the particle physics, astrophysics, and cosmology associated with the cosmological tensions and anomalies Open
The standard Λ Cold Dark Matter (ΛCDM) cosmological model provides a good description of a wide range of astrophysical and cosmological data. However, there are a few big open questions that make the standard model look like an approximati…
View article: A cosmologically consistent millicharged dark matter solution to the EDGES anomaly of possible string theory origin
A cosmologically consistent millicharged dark matter solution to the EDGES anomaly of possible string theory origin Open
View article: What the Fermilab muon <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>g</mml:mi><mml:mo>−</mml:mo><mml:mn>2</mml:mn></mml:math> experiment tells us about discovering supersymmetry at high luminosity and high energy upgrades to the LHC
What the Fermilab muon experiment tells us about discovering supersymmetry at high luminosity and high energy upgrades to the LHC Open
Using an artificial neutral network we explore the parameter space of\nsupergravity grand unified models consistent with the combined Fermilab E989\nand Brookhaven E821 data on $(g-2)_\\mu$. The analysis indicates that the region\nfavored …
View article: EDGES data as a signal of the Stueckelberg mechanism in the early universe
EDGES data as a signal of the Stueckelberg mechanism in the early universe Open
The EDGES experiment shows a cooling of baryons at a redshift of $z\sim 17$ with an amplitude of 500$_{-500}^{+200}$ mK at 99% C.L. which is a 3.8$\sigma$ deviation from what the standard $\Lambda$CDM cosmology gives. We present a particle…
View article: A cosmologically consistent millicharged dark matter solution to the EDGES anomaly of possible string theory origin
A cosmologically consistent millicharged dark matter solution to the EDGES anomaly of possible string theory origin Open
Analysis of EDGES data shows an absorption signal of the redshifted 21-cm line of atomic hydrogen at $z\sim 17$ which is stronger than expected from the standard $Λ$CDM model. The absorption signal interpreted as brightness temperature $T_…
View article: Future searches for SUSY at the LHC post Fermilab $(g-2)_μ$
Future searches for SUSY at the LHC post Fermilab $(g-2)_μ$ Open
We assess the future directions for the search for supersymmetry at the Large Hadron Collider in view of the new precision results on the muon anomaly by the Fermilab Collaboration. The existence of a deviation of size 4.1$σ$ from the Stan…
View article: Future searches for SUSY at the LHC post Fermilab $(g-2)_\mu$
Future searches for SUSY at the LHC post Fermilab $(g-2)_\mu$ Open
We assess the future directions for the search for supersymmetry at the Large\nHadron Collider in view of the new precision results on the muon anomaly by the\nFermilab Collaboration. The existence of a deviation of size 4.1$\\sigma$ from\…
View article: Hidden sectors and a multi-temperature universe
Hidden sectors and a multi-temperature universe Open
A variety of supergravity and string based models contain hidden sectors which can play a role in particle physics phenomena and in cosmology. In this note we discuss the possibility that the visible sector and the hidden sectors in genera…
View article: A multi-temperature universe can allow a sub-MeV dark photon dark matter
A multi-temperature universe can allow a sub-MeV dark photon dark matter Open
View article: Yukawa coupling unification in an SO(10) model consistent with Fermilab (g − 2)μ result
Yukawa coupling unification in an SO(10) model consistent with Fermilab (g − 2)μ result Open
A bstract We investigate the Yukawa coupling unification for the third generation in a class of SO(10) unified models which are consistent with the 4.2 σ deviation from the standard model of the muon g − 2 seen by the Fermilab experiment E…
View article: Yukawa coupling unification in an $\mathsf{SO(10)}$ model consistent with Fermilab $(g-2)_μ$ result
Yukawa coupling unification in an $\mathsf{SO(10)}$ model consistent with Fermilab $(g-2)_μ$ result Open
We investigate the Yukawa coupling unification for the third generation in a class of $\mathsf{SO(10)}$ unified models which are consistent with the 4.2 $σ$ deviation from the standard model of the muon $g-2$ seen by the Fermilab experimen…
View article: Yukawa coupling unification in an $\mathsf{SO(10)}$ model consistent with Fermilab $(g-2)_{\mu}$ result
Yukawa coupling unification in an $\mathsf{SO(10)}$ model consistent with Fermilab $(g-2)_{\mu}$ result Open
We investigate the Yukawa coupling unification for the third generation in a class of $\mathsf{SO(10)}$ unified models which are consistent with the 4.2 $\sigma$ deviation from the standard model of the muon $g-2$ seen by the Fermilab expe…
View article: Self-interacting hidden sector dark matter, small scale galaxy structure anomalies, and a dark force
Self-interacting hidden sector dark matter, small scale galaxy structure anomalies, and a dark force Open
The short distance behavior of dark matter (DM) at galaxy scales exhibits\nseveral features not explained by the typical cold dark matter (CDM) with\nvelocity-independent cross-section. We discuss a particle physics model with a\nhidden se…
View article: What Fermilab $(g-2)_{\mu}$ experiment tells us about discovering SUSY at HL-LHC and HE-LHC
What Fermilab $(g-2)_{\mu}$ experiment tells us about discovering SUSY at HL-LHC and HE-LHC Open
Using an artificial neutral network we explore the parameter space of supergravity grand unified models consistent with the combined Fermilab E989 and Brookhaven E821 data on $(g-2)_\mu$. The analysis indicates that the region favored by t…