Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Coleppa, Baradhwaj"'
We consider an extension of the Standard Model of particle physics with an additional $SU(2)$ gauge sector along with an additional scalar bidoublet and a non-linear sigma field. The neutral components of the bidoublet serve as dark matter candidates
Externí odkaz:
http://arxiv.org/abs/2307.14873
We introduce an optimization technique to discriminate signal and background in any phenomenological study based on the cut and count-based method. The core ideas behind this algorithm is the introduction of a ranking scheme that can quantitatively a
Externí odkaz:
http://arxiv.org/abs/2305.10915
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
Externí odkaz:
http://arxiv.org/abs/2301.08588
The Littlest Seesaw model is a very well motivated dark matter model. Here we consider an extension of that model with an additional scalar and an additional fermionic particle under the freeze-in scenario. Formation of black hole of a certain mass r
Externí odkaz:
http://arxiv.org/abs/2209.06793
In this paper, we explore the collider phenomenology of the charged Higgs boson in the context of a generic Beyond Standard Model scenario with extended gauge and scalar sectors. In such scenarios, the charged Higgs boson can decay via the $W^{'}Z/ W
Externí odkaz:
http://arxiv.org/abs/2107.03993
We revisit the two real singlet extension of the Standard Model with a $Z_2\times Z_2^\prime$ symmetry. One of the singlet scalars $S_2$, by virtue of an unbroken $Z_2^\prime$ symmetry, plays the role of a stable dark matter candidate. The other scal
Externí odkaz:
http://arxiv.org/abs/2105.09044
Autor:
Coleppa, Baradhwaj, Sarkar, Agnivo
We discuss the structure of a model with an extended gauge symmetry group $SU(2)\times SU(2)\times U(1)$ with a correspondingly rich Electroweak Symmetry Breaking structure. In spite of the additional scalar degrees of freedom in the model, the prese
Externí odkaz:
http://arxiv.org/abs/2011.10926
Autor:
Coleppa, Baradhwaj1 (AUTHOR), Loho, Kousik1 (AUTHOR) kousik.loho@iitgn.ac.in, Sarkar, Agnivo2 (AUTHOR)
Publikováno v:
European Physical Journal C -- Particles & Fields. Feb2024, Vol. 84 Issue 2, p1-17. 17p.
Publikováno v:
Phys. Rev. D 101, 055030 (2020)
We study the discovery prospects of the charged Higgs boson in the context of multi Higgs models in certain BSM scenarios. We classify models into three categories based on the charged Higgs coupling properties: gaugophobic, fermiophobic, and chromop
Externí odkaz:
http://arxiv.org/abs/1909.11992
Publikováno v:
Phys. Rev. D 98, 095009 (2018)
Models with extra gauge symmetry are well-motivated extensions of the Standard Model. In this paper, we study an extended gauge model with a heavy neutral gauge boson $Z'$ which is fermiophobic. Thus, the production of such particles can occur via ve
Externí odkaz:
http://arxiv.org/abs/1808.09728