15 citations · 21 across the 15 of their papers we have counts for
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Search prospect for electrophilic bosons at the TRISTAN
Amit Adhikary, Anindya Datta, Dilip Kumar Ghosh
Mediators coupled predominantly to the electron remain weakly constrained above the kinematic reach of the ~factories, a region that is difficult to access at hadron colliders a…
Freeze-in vector dark matter at low reheating temperature
Dilip Kumar Ghosh, Sourav Gope, Xiao-Gang He +2
The freeze-in mechanism for dark matter (DM) requires extremely feeble interactions with the Standard Model (SM), preventing thermal equilibrium in the early Universe and typically…
Chasing Long-Lived Doubly Charged Scalars at Future Lepton Colliders
Nandini Das, Dilip Kumar Ghosh, Nivedita Ghosh +1
We come up with a novel search strategy for long-lived doubly charged scalars at future proposed lepton colliders. The doubly charged scalar studied in this work belongs to an $SU(…
ALP and boson at the Electron-Ion collider
Amit Adhikary, Dilip Kumar Ghosh, Sk Jeesun +1
We study the sensitivity of the upcoming electron-ion (EIC) collider to purely electrophilic new physics in the GeV mass range. Within an effective field theory framework, we consi…
Complex Scalar Singlet Model: Electroweak Phase Transition and Gravitational Waves
Dilip Kumar Ghosh, Debadrita Mukherjee, Koustav Mukherjee +1
The Standard Model (SM) cannot explain the observed baryon asymmetry of the Universe (BAU), thus driving the need for physics beyond the SM, which can generate the electroweak bary…
Impact of Non-Thermal Leptogenesis with Early Matter Domination on Gravitational Waves from First-order Phase Transition
Dilip Kumar Ghosh, Anish Ghoshal, Koustav Mukherjee +2
We study the impact of non-thermal leptogenesis on the spectrum of gravitational waves (GWs) produced by a strong first-order phase transition in the early Universe. We consider a…
Vector Dark Matter in a extended 2HDM
Nandini Das, Juhi Dutta, Dilip Kumar Ghosh +1
We investigate the possibility of having a vector boson dark matter in a extended two-Higgs-doublet model (2HDM) setup. The gauge boson gains mass when a SM singlet comple…
Probing the low mass pseudoscalar in flipped Two Higgs Doublet Model
Dilip Kumar Ghosh, Biswarup Mukhopadhyaya, Sirshendu Samanta +1
The phenomenology of the flipped two-Higgs-doublet model (2HDM) is relatively less explored so far, as compared to the other, commonly discussed, types. It is found that this scena…
Probing Light Particles With Optically Trapped Sensors Through Nucleon Scattering
Bhaskar Dutta, Dilip Kumar Ghosh, Sk Jeesun
Optically levitated nanospheres are highly sensitive to the motion of their center of mass even under small momentum transfer. We propose detecting exotic particles via nucleon sca…
Boosted Dark Matter Driven by Cosmic Rays and Diffuse Supernova Neutrinos
Dilip Kumar Ghosh, Tushar Gupta, Matti Heikinheimo +2
Direct detection of light dark matter can be significantly enhanced by up-scattering of dark matter with energetic particles in the cosmic ambient. This boosted dark matter flux ca…
A singlet scalar assisted Leptogenesis and Pseudo-Scalar Dark Matter
Dilip Kumar Ghosh, Purusottam Ghosh, Koustav Mukherjee +1
We study the Leptogenesis and Dark Matter in the presence of an extra singlet complex scalar field in an extended discrete symmetry. The vacuum expectation va…
Electroweak Phase Transition in Two Scalar Singlet Model with pNGB Dark Matter
Dilip Kumar Ghosh, Koustav Mukherjee, Shourya Mukherjee
We investigate the dynamics of the electroweak phase transition within an extended Standard Model framework that includes one real scalar and one complex scalar , both o…
Exploring the Dark Sector of the inspired FNSM at the LHC
Amit Chakraborty, Dilip Kumar Ghosh, Najimuddin Khan +1
We establish the possibility of having a pseudo-Nambu-Goldstone boson (pNGB) Dark Matter (DM) candidate in the inspired Froggatt-Nielsen Singlet Model (iFNSM) wherein a direct conn…
The at CMB challenges light gauge boson scenarios
Dilip Kumar Ghosh, Purusottam Ghosh, Sk Jeesun +1
The relativistic degrees of freedom () is one of the crucial cosmological parameters. The precise measurement of at the time of cosmic microwave backgrou…
Hubble Tension and Cosmological Imprints of Gauge Symmetry: as a case study
Dilip Kumar Ghosh, Purusottam Ghosh, Sk Jeesun +1
The current upper limit on at the time of CMB by Planck 2018 can place stringent constraints in the parameter space of BSM paradigms where their additional interactio…
CMB signature of non-thermal Dark Matter produced from self-interacting dark sector
Dilip Kumar Ghosh, Purusottam Ghosh, Sk Jeesun
The basic idea of this work is to achieve the observed relic density of a non-thermal dark matter(DM) and its connection with Cosmic Microwave Background (CMB) via additional relat…