Zobrazeno 1 - 10
of 223
pro vyhledávání: '"Dasgupta, Arnab"'
Publikováno v:
JHEP 12 (2023) 011
We study the phenomenology of leptophilic $Z'$ gauge bosons at the future high-energy $e^+e^-$ and $\mu^+\mu^-$ colliders, as well as at the gravitational wave observatories. The leptophilic $Z'$ model, although well-motivated, remains largely uncons
Externí odkaz:
http://arxiv.org/abs/2308.12804
We propose a novel framework where baryon asymmetry of the universe can arise due to forbidden decay of dark matter (DM) enabled by finite-temperature effects in the vicinity of a first order phase transition (FOPT). In order to implement this novel
Externí odkaz:
http://arxiv.org/abs/2306.05459
We propose a minimal setup that realises dynamical inflection point inflation, and, using the same field content, generates neutrino masses, a baryon asymmetry of the universe, and dark matter. A dark $SU(2)_D$ gauge sector with a dark scalar doublet
Externí odkaz:
http://arxiv.org/abs/2306.00368
We study the possibility of constraining a scenario with high scale first order phase transition (FOPT) responsible for the cogenesis of baryon and dark matter using gravitational wave (GW) (non)-observations. While the FOPT at high scale is responsi
Externí odkaz:
http://arxiv.org/abs/2304.08888
We study a scenario where both dark matter and heavy right handed neutrino (RHN) responsible for leptogenesis acquire masses by crossing the relativistic bubble walls formed as a result of a TeV scale supercooled first order phase transition (FOPT).
Externí odkaz:
http://arxiv.org/abs/2207.14226
Autor:
Borah, Debasish, Dasgupta, Arnab
Publikováno v:
Phys. Rev. D108, 035015 (2023)
We study a class of leptogenesis scenarios with decay or scattering being the source of lepton asymmetry, which can not only give rise to the observed baryon asymmetry in the universe but also can leave behind a large remnant neutrino asymmetry. Such
Externí odkaz:
http://arxiv.org/abs/2206.14722
Publikováno v:
Phys. Rev. D 106, 075027 (2022)
We analyze the classically scale-invariant $B-L$ model in the context of resonant leptogenesis with the recently proposed mass-gain mechanism. The $B-L$ symmetry breaking in this scenario is associated with a strong first order phase transition that
Externí odkaz:
http://arxiv.org/abs/2206.07032
Autor:
Borah, Debasish, Dasgupta, Arnab
We study the possibility of probing the scale of left-right symmetry breaking in the context of left-right symmetric models (LRSM). In LRSM, the right handed fermions transform as doublets under a newly introduced $SU(2)_R$ gauge symmetry. This, alon
Externí odkaz:
http://arxiv.org/abs/2205.12220
We propose a novel way of probing high scale Dirac leptogenesis, a viable alternative to canonical leptogenesis scenario where the total lepton number is conserved, keeping light standard model (SM) neutrinos purely Dirac. The simplest possible seesa
Externí odkaz:
http://arxiv.org/abs/2205.03422
Autor:
Elor, Gilly, Harz, Julia, Ipek, Seyda, Shakya, Bibhushan, Blinov, Nikita, Co, Raymond T., Cui, Yanou, Dasgupta, Arnab, Davoudiasl, Hooman, Elahi, Fatemeh, Fridell, Kåre, Ghalsasi, Akshay, Harigaya, Keisuke, Hati, Chandan, Huang, Peisi, Maleknejad, Azadeh, McGehee, Robert, Morrissey, David E., Schmitz, Kai, Shamma, Michael, Shuve, Brian, Tucker-Smith, David, van de Vis, Jorinde, White, Graham
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. There have been many recent theoretical developments to address this quest
Externí odkaz:
http://arxiv.org/abs/2203.05010