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Baradhwaj Coleppa

As seen in: Physical Review B, EPJ
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Articles

Charged Higgs signatures at future electron-proton colliders

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By Baradhwaj Coleppa, Gokul Krishna
| EPJ
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
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Multicomponent scalar dark matter with an extended Gauge sector

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By Baradhwaj Coleppa, Kousik Loho, Agnivo Sarkar, Chhatnag Road
| EPJ
Eur. Phys. J.
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Dark matter production from two evaporating PBH distributions

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By Arnab Ray Chaudhuri, Baradhwaj Coleppa, Kousik Loho
| Physical Review B
Particulate dark matter (DM), completely isolated from the Standard Model particle sector, can be produced in the early Universe from primordial black hole (PBH) evaporation. However, big bang nucleosynthesis (BBN) observations put an upper bound on the initial mass of PBH requiring the PBH to evaporate completely before the advent of BBN. DM particles in the mass range ∼(1–109)  GeV cannot explain the observed relic abundance for an early matter dominated universe due to this BBN constraint.
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