Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Debasish Majumdar"'
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 5, Pp 1-28 (2021)
Abstract We consider a simple extension of Standard Model by adding two complex singlet scalars with a U(1) symmetry. A discrete Z 2 × Z 2 ′ $$ {\mathcal{Z}}_2\times {\mathcal{Z}}_2^{\prime } $$ symmetry is imposed in the model and the added scala
Externí odkaz:
https://doaj.org/article/edbcbf217dfe4fa28378d04a70ecf391
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 10, Pp 1-10 (2020)
Abstract We consider a dark energy scenario driven by a scalar field $$\phi $$ ϕ with a pseudo-Nambu–Goldstone boson (pNGB) type potential $$V(\phi )=\mu ^4 \left( 1+ \mathrm{cos}(\phi /f) \right) $$ V ( ϕ ) = μ 4 1 + cos ( ϕ / f ) . The pNGB o
Externí odkaz:
https://doaj.org/article/fac47fb5cc3c4486b1412da322d4c02f
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 80, Iss 6, Pp 1-11 (2020)
Abstract Within the framework of modified gravity model namely Slotheon model, inspired by the theory of extra dimensions, we explore the behaviour of Dark Energy and the perturbations thereof. The Dark Energy and matter perturbations equations are t
Externí odkaz:
https://doaj.org/article/a0b77fd6df1b4fa0b8a7a10f98b37124
Publikováno v:
Letters in High Energy Physics, Vol 2021, Iss 1 (2021)
The EDGES experiment related to the observant of brightness temperature \(T_{21}\) of 21cm line arising from ground state of neutral Hydrogen atom, has shown an excess absorption feature ( \(− 500^ {+200}_{ − 500}\) mK) in \(T_{21}\) spectrum cor
Externí odkaz:
https://doaj.org/article/9c5d921bff884acda0f15f3ea80054c8
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 77, Iss 10, Pp 1-18 (2017)
Abstract We explore a two component dark matter model with a fermion and a scalar. In this scenario the Standard Model (SM) is extended by a fermion, a scalar and an additional pseudo scalar. The fermionic component is assumed to have a global $$\mat
Externí odkaz:
https://doaj.org/article/31f56dc829ef42618c8d20c1a6c47163
Publikováno v:
Physics Letters B, Vol 797, Iss , Pp - (2019)
Considering that the ultrahigh energy (UHE) upgoing muon neutrino events around the PeV energy region observed by the IceCube are due to the decay of superheavy dark matter to neutrinos, we constrain the mass of the decaying dark matter and its decay
Externí odkaz:
https://doaj.org/article/4085ac8a4e1d45ea9b2ef1bfff41ab40
Autor:
Amit Dutta Banik, Debasish Majumdar
Publikováno v:
Physics Letters B, Vol 743, Iss , Pp 420-427 (2015)
Recent study of gamma rays originating from the region of galactic centre has confirmed an anomalous γ-ray excess within the energy range 1–3 GeV. This can be explained as the consequence of pair annihilation of a 31–40 GeV dark matter into bb¯
Externí odkaz:
https://doaj.org/article/b5fe5aeddac94c9d87b45f918753cbba
New PV Metrology for performance appraisal of PolySilicon PV Modules in Eastern Indian climatic Zone
Publikováno v:
Renewable Energy and Power Quality Journal. 19:333-337
An appropriate number of series-connected supercapacitors (SC) forming an SC bank has been used for the first time as the load to PV generators in course of their electrical characterization. Exhaustive estimates of standard PV parameters along with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f884db714920585ae7adea157e97b71
https://doi.org/10.24084/repqj19.288
https://doi.org/10.24084/repqj19.288
The Weakly Interacting Massive Particles (WIMPs) so far remain one of the most popular candidates for dark matter. If captured gravitationally inside the core of the Sun, these WIMPs may produce high energy neutrinos as the end product in case they u
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::132ae6c8b5c9856cd1d2986bc556e4a0
http://arxiv.org/abs/2203.13697
http://arxiv.org/abs/2203.13697
Publikováno v:
Springer Proceedings in Physics ISBN: 9789811923531
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87581a5bc629179d836f8371b6befbc0
https://doi.org/10.1007/978-981-19-2354-8_13
https://doi.org/10.1007/978-981-19-2354-8_13