A cosmologically consistent millicharged dark matter solution to the EDGES anomaly of possible string theory origin
Sign Up to like & getrecommendations! Published in 2021 at "Journal of High Energy Physics"
DOI: 10.1007/jhep12(2021)148
Abstract: Abstract Analysis of EDGES data shows an absorption signal of the redshifted 21-cm line of atomic hydrogen at z ∼ 17 which is stronger than expected from the standard ΛCDM model. The absorption signal interpreted… read more here.
Keywords: dark matter; physics; millicharged dark; hidden sector ... See more keywords
Influence of the equation of state on a compact star made of hidden-sector nucleons
Sign Up to like & getrecommendations! Published in 2020 at "Progress of Theoretical and Experimental Physics"
DOI: 10.1093/ptep/ptaa014
Abstract: We study compact star made of degenerate hidden sector nucleons which will be a candidate for cold dark matter. A hidden sector like QCD is considered, and as the low energy effective theory we take… read more here.
Keywords: sector nucleons; star made; compact star; hidden sector ... See more keywords
Gamma lines from the hidden sector
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.123007
Abstract: We discuss the visibility of gamma lines from dark matter annihilation. We point out a class of theories for dark matter which predict the existence of gamma lines with striking features. In these theories, the… read more here.
Keywords: gamma; dark matter; gamma lines; hidden sector ... See more keywords
Hidden sector explanation of $B$-decay and cosmic ray anomalies
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.095015
Abstract: There are presently several discrepancies in $b \to s \ell^+ \ell^-$ decays of $B$ mesons suggesting new physics coupling to $b$ quarks and leptons. We show that a $Z'$, with couplings to quarks and muons… read more here.
Keywords: explanation decay; sector explanation; hidden sector; cosmic ray ... See more keywords
Rare $Z$ Boson Decays to a Hidden Sector
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.97.015009
Abstract: We demonstrate that rare decays of the Standard Model $Z$ boson can be used to discover and characterize the nature of new hidden-sector particles. We propose new searches for these particles in soft, high-multiplicity leptonic… read more here.
Keywords: boson decays; hidden sector; rare boson; sector ... See more keywords
Implications of heavy neutralino dark matter: The underlying structure in the hidden sector
Sign Up to like & getrecommendations! Published in 2017 at "International Journal of Modern Physics A"
DOI: 10.1142/s0217751x17500130
Abstract: The possibility of heavy neutralino dark matter (DM) in the gravity-mediation mechanism is explored. The appearance of the heavy lightest supersymmetric particle is seemingly suggested by Large Hadron Collider runs, which have not provided evidence… read more here.
Keywords: heavy neutralino; neutralino dark; dark matter; hidden sector ... See more keywords