Black hole genesis of dark matter
JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS (2018) ARTN 009
Higgs assisted Q-balls from pseudo-Nambu-Goldstone bosons
JOURNAL OF HIGH ENERGY PHYSICS (2017) ARTN 179
Baryogenesis via particle-antiparticle oscillations
Physical Review D American Physical Society 93:123528 (2016)
Abstract:
CP violation, which is crucial for producing the baryon asymmetry of the Universe, is enhanced in particle-antiparticle oscillations. We study particle-antiparticle oscillations [of a particle with mass O(100 GeV)] with CP violation in the early Universe in the presence of interactions with O(ab-fb) cross sections. We show that if baryon-number-violating interactions exist, a baryon asymmetry can be produced via out-of-equilibrium decays of oscillating particles. As a concrete example we study a U(1)R-symmetric, R-parity-violating supersymmetry model with pseudo-Dirac gauginos, which undergo particle-antiparticle oscillations. Taking bino to be the lightest U(1)R-symmetric particle, and assuming it decays via baryon-number-violating interactions, we show that bino-antibino oscillations can produce the baryon asymmetry of the Universe.Natural Scherk-Schwarz theories of the weak scale
Journal of High Energy Physics Springer Nature 2015:12 (2015) 1-47
Twin Higgs WIMP dark matter
Physical Review D American Physical Society (APS) 92:5 (2015) 055034