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Fazlollah Hajkarim
Fazlollah Hajkarim
Department of Physics and Astronomy, University of Oklahoma
Verified email at ou.edu
Title
Cited by
Cited by
Year
The effects of QCD equation of state on the relic density of WIMP dark matter
M Drees, F Hajkarim, ER Schmitz
Journal of Cosmology and Astroparticle Physics 2015 (06), 025, 2015
1422015
Primordial gravitational waves in nonstandard cosmologies
N Bernal, F Hajkarim
Physical Review D 100 (6), 063502, 2019
692019
Dark matter production in an early matter dominated era
M Drees, F Hajkarim
Journal of Cosmology and Astroparticle Physics 2018 (02), 057, 2018
692018
Thermal history of the early Universe and primordial gravitational waves from induced scalar perturbations
F Hajkarim, J Schaffner-Bielich
Physical Review D 101 (4), 043522, 2020
602020
Neutralino dark matter in scenarios with early matter domination
M Drees, F Hajkarim
Journal of High Energy Physics 2018 (12), 1-28, 2018
462018
Thermal axion production at low temperatures: a smooth treatment of the QCD phase transition
F D’Eramo, F Hajkarim, S Yun
Physical Review Letters 128 (15), 152001, 2022
432022
Thermal QCD Axions across Thresholds
F D’Eramo, F Hajkarim, S Yun
Journal of High Energy Physics 2021 (10), 1-60, 2021
422021
Cosmological bound on the QCD axion mass, redux
F D'Eramo, E Di Valentino, W Giare, F Hajkarim, A Melchiorri, O Mena, ...
Journal of Cosmology and Astroparticle Physics 2022 (09), 022, 2022
402022
Pion condensation in the early universe at nonvanishing lepton flavor asymmetry and its gravitational wave signatures
V Vovchenko, BB Brandt, F Cuteri, G Endrődi, F Hajkarim, ...
Physical Review Letters 126 (1), 012701, 2021
372021
Primordial gravitational wave signals in modified cosmologies
N Bernal, A Ghoshal, F Hajkarim, G Lambiase
Journal of Cosmology and Astroparticle Physics 2020 (11), 051, 2020
372020
Axion dark matter in the time of primordial black holes
N Bernal, F Hajkarim, Y Xu
Physical Review D 104 (7), 075007, 2021
322021
Shedding new light on sterile neutrinos from XENON1T experiment
S Shakeri, F Hajkarim, SS Xue
Journal of High Energy Physics 2020 (12), 1-33, 2020
262020
Stability of Einstein static universe over Lyra geometry
F Darabi, Y Heydarzade, F Hajkarim
Canadian Journal of Physics 93 (12), 1566-1570, 2015
262015
Did we hear the sound of the Universe boiling? Analysis using the full fluid velocity profiles and NANOGrav 15-year data
T Ghosh, A Ghoshal, HK Guo, F Hajkarim, SF King, K Sinha, X Wang, ...
arXiv preprint arXiv:2307.02259, 2023
24*2023
Effects of the QCD equation of state and lepton asymmetry on primordial gravitational waves
S Wystub, MM Wygas, F Hajkarim, J Schaffner-Bielich
Physical Review D 99 (arXiv: 1904.01046), 2019
19*2019
On the viability of Planck scale cosmology with quartessence
M Khodadi, K Nozari, F Hajkarim
The European Physical Journal C 78, 1-12, 2018
152018
Probing axions via light circular polarization and event horizon telescope
S Shakeri, F Hajkarim
Journal of Cosmology and Astroparticle Physics 2023 (04), 017, 2023
82023
Lepton and W-boson mass anomalies in the DFSZ axion model
M Ahmadvand, F Hajkarim
The European Physical Journal C 83 (11), 1021, 2023
12023
Dark radiation from the primordial thermal bath in momentum space
F D'Eramo, F Hajkarim, A Lenoci
Journal of Cosmology and Astroparticle Physics 2024 (03), 009, 2024
2024
New Constraints on Axion-Like Particles from IXPE Polarization Data for Magnetars
E Gau, F Hajkarim, SP Harris, PS Dev, JF Fortin, H Krawczynski, K Sinha
arXiv preprint arXiv:2312.14153, 2023
2023
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