10 papers
Constraints on the model from a negative number of flavors
Daniele Artico, Jasper Roosmale Nepveu
Treating the number of flavors as a variable in the model leads to non-perturbative constraints on the spectrum of operators. Using the duality between and $Sp(-n…
Dark Phoenix: dark matter relic from its own decay
Debasish Borah, Satyabrata Mahapatra, Indrajit Saha +2
We propose a novel mechanism for generating correct relic of dark matter (DM) which otherwise gets thermally overproduced from the conventional freeze-out mechanism. The mechanism,…
Electroweak phase transition in SMEFT: Gravitational wave and collider complementarity
Sahabub Jahedi, Indrajit Saha, Abhik Sarkar
We study the first-order electroweak phase transition (FO-EWPT) within the Standard Model Effective Field Theory (SMEFT) framework induced by dimension-6 operators. Such phenomena…
Gravitational waves from seesaw assisted collapsing domain walls
Debasish Borah, Indrajit Saha
Spontaneous breaking of discrete symmetries like leads to the formation of stable topological defects such as domain walls which, if allowed to dominate, can potentially be i…
Probing Dynamical Inverse Seesaw with Low-frequency Gravitational Waves
Debasish Borah, Sounak Dutta, Partha Kumar Paul +2
We study the possibility of probing the dynamical inverse seesaw mechanism for the origin of light neutrino masses via the detection of stochastic gravitational waves (GW) in the l…
Imprint of matter-antimatter asymmetry on collapsing domain walls
Dipendu Bhandari, Debasish Borah, Indrajit Saha
Spontaneous breaking of discrete symmetries play non-trivial role in many well-motivated particle physics models. However, it leads to a network of cosmologically unwanted domain w…