198 citations · 691 across the 23 of their papers we have counts for
23 papers
Big Bang Nucleosynthesis Confronts Domain Walls and First-Order Phase Transitions as the Pulsar Timing Array Explanations
Fatemeh Elahi, Diego Fortini, Yann Gouttenoire +2
Pulsar timing arrays (PTAs) have detected a nanohertz gravitational-wave background, often attributed to annihilating domain walls (DWs) or first-order phase transitions (FOPTs). T…
A Vector-Like Lepton Interpretation of the High-Energy Nuclear Recoil Candidate in LUX-ZEPLIN
Fatemeh Elahi, Pedro Schwaller
The LUX-ZEPLIN (LZ) experiment has recently reported a nuclear-recoil candidate at in an exposure of . At…
Signature of Non-Minimal Scalar-Gravity Coupling with an Early Matter Domination on the Power Spectrum of Gravitational Waves
Amirsalar Nikandish, Shiva Rostam Zadeh, Reza Naderi +2
The signal strength of primordial gravitational waves experiencing an epoch of early scalar domination is reduced with respect to radiation domination. In this paper, we demonstrat…
A Lighter QCD Axion from Anarchy
Fatemeh Elahi, Gilly Elor, Alexey Kivel +3
We introduce the Anarchic Axion, a class of axion models which solves the Strong CP problem within current nEDM constraints with a lighter than usual QCD axion, thus populating new…
Light and Feebly Interacting Non-Abelian Vector Dark Matter Produced Through Vector Misalignment
Fatemeh Elahi, Sara Khatibi
In this paper, we examine the evolution of light and feebly interacting non-abelian dark gauge bosons dark matter in the early universe. We specifically work on a multi-component d…
New Ideas in Baryogenesis: A Snowmass White Paper
Gilly Elor, Julia Harz, Seyda Ipek +21
The Standard Model of Particle Physics cannot explain the observed baryon asymmetry of the Universe. This observation is a clear sign of new physics beyond the Standard Model. Ther…
The ALPs from the Top: Searching for long lived axion-like particles from exotic top decays
Adrian Carmona, Fatemeh Elahi, Christiane Scherb +1
We propose a search for long lived axion-like particles (ALPs) in exotic top decays. Flavour-violating ALPs appear as low energy effective theories for various new physics scenario…
Charged Mesogenesis
Fatemeh Elahi, Gilly Elor, Robert McGehee
We leverage the CP violation in charged meson decays to generate the observed baryon asymmetry and dark matter at temperatures. We realize this in…
Magnetogenesis From Baryon Asymmetry During an Early Matter Dominated Era
Fatemeh Elahi, Hadi Mehrabpour
In this paper, we study the simultaneous evolution of baryon asymmetry and hypermagnetic field amplitude assuming an early matter domination. We contrast our results to the convent…
Flavon Magneto-Baryogenesis
Fatemeh Elahi, Shiva Rostam Zadeh
In this paper, we explore the evolution of baryon asymmetry as well as the hypermagnetic field in the early universe with an assumption that the flavon of the Froggatt-Nielsen carr…
Neutron Decay to a Non-Abelian Dark Sector
Fatemeh Elahi, Mojtaba Mohammadi Najafabadi
According to the Standard Model (SM), we expect to find a proton for each decaying neutron. However, the experiments counting the number of decayed neutrons and produced protons ha…
Ultraviolet Freeze-in and Non-Standard Cosmologies
Nicolás Bernal, Fatemeh Elahi, Carlos Maldonado +1
A notable feature of UV freeze-in is that the relic density is strongly dependent on the highest temperatures of the thermal bath, and a common assumption is that the relevant 'hig…
LHC Constraints on a Gauge Boson
Fatemeh Elahi, Adam Martin
In this paper, we explore the constraints that the LHC can place on a massive gauge boson that predominantly couples to the third generation of fermions. Such a gauge boson ari…
Multi-Component Dark Matter in a Non-Abelian Dark Sector
Fatemeh Elahi, Sara Khatibi
In this paper, we explore a dark sector scenario with a gauged and a global , where the continuous symmetries are spontaneously broken to a gl…
Galactic Center Gas Clouds and Novel Bounds on Ultra-Light Dark Photon, Vector Portal, Strongly Interacting, Composite, and Super-Heavy Dark Matter
Amit Bhoonah, Joseph Bramante, Fatemeh Elahi +1
Cold gas clouds recently discovered hundreds of parsecs from the center of the Milky Way Galaxy have the potential to detect dark matter. With a detailed treatment of gas cloud mic…
Calorimetric Dark Matter Detection With Galactic Center Gas Clouds
Amit Bhoonah, Joseph Bramante, Fatemeh Elahi +1
We demonstrate that dark matter heating of gas clouds hundreds of parsecs from the Milky Way Galactic center provides a powerful new test of dark matter interactions. To illustrate…
Same-sign top pair plus production in flavor changing vector and scalar models
Javad Ebadi, Fatemeh Elahi, Morteza Khatiri +1
We investigate the prospect of the LHC for discovering new physics effects via new strategies in the same-sign top pair and same-sign top pair associated with a boson signature…
Thermal dark matter via the flavon portal
Carlos Alvarado, Fatemeh Elahi, Nirmal Raj
Dark matter (DM) is added to the Froggatt-Nielsen (FN) mechanism, and conditions for its successful freezeout identified. Requesting the FN scale to be the cutoff o…
Using the (Modified) Matrix Element Method to constrain Interactions
Fatemeh Elahi, Adam Martin
In this paper, we explore the discriminatory power of the matrix element method (MEM) in constraining the model at the LHC. The gauge boson associated with the spont…
Constraints on interactions at the LHC and beyond
Fatemeh Elahi, Adam Martin
In this paper we examine the constraints dedicated LHC multi lepton searches can place on bosons coming from gauged muon number minus tau number, . As the g…
Higgs portals to pulsar collapse
Joseph Bramante, Fatemeh Elahi
Pulsars apparently missing from the galactic center could have been destroyed by asymmetric fermionic dark matter ( GeV) coupled to a light scalar ( MeV), w…
UltraViolet Freeze-in
Fatemeh Elahi, Christopher Kolda, James Unwin
If dark matter is thermally decoupled from the visible sector, the observed relic density can potentially be obtained via freeze-in production of dark matter. Typically in such mod…
Catching sparks from well-forged neutralinos
Joseph Bramante, Antonio Delgado, Fatemeh Elahi +2
In this paper we present a new search technique for electroweakinos, the superpartners of electroweak gauge and Higgs bosons, based on final states with missing transverse energy,…