Zobrazeno 1 - 10
of 209
pro vyhledávání: '"Sharma, Ravi Kumar"'
In this work, we explore the possibility that Early Dark Energy (EDE) is dynamical in nature and study its effect on cosmological observables. We introduce a parameterization of the equation of state allowing for an equation of state $w$ differing co
Externí odkaz:
http://arxiv.org/abs/2309.00401
Publikováno v:
Phys. Rev. D 108, 043518 (2023)
We present small-scale structure constraints on sterile dark matter produced from a heavy mediator particle, inspired by models of moduli decay. Dark matter particles produced through this mechanism can contribute to the entire dark matter energy den
Externí odkaz:
http://arxiv.org/abs/2305.15736
Cosmologies with Light Massive Relics (LiMRs) as a subdominant component of the dark sector are well-motivated from a particle physics perspective, and can also have implications for the $\sigma_8$ tension between early and late time probes of matter
Externí odkaz:
http://arxiv.org/abs/2202.09840
Publikováno v:
2022 ApJ 934 113
Recently there has been reports of finding a lower bound on the neutrino mass parameter ($\Sigma m_\nu$) when using ACT and SPTpol data however these bounds on the $\Sigma m_\nu$ are still weaker for most case around at 1 $\sigma$ level. In this cont
Externí odkaz:
http://arxiv.org/abs/2202.01749
Autor:
Yang, Zi Liang, Walvekar, Rashmi, Wong, Weng Pin, Sharma, Ravi Kumar, Dharaskar, Swapnil, Khalid, Mohammad
Publikováno v:
In Journal of Energy Storage 15 May 2024 87
Publikováno v:
Phys. Rev. D 105, 103503 (2022)
The $\Lambda$CDM prediction of $S_8\equiv\sigma_8(\Omega_m/0.3)^{0.5}$ -- where $\sigma_8$ is the root mean square of matter fluctuations on a 8 $h^{-1}$Mpc scale -- once calibrated on Planck CMB data is $2-3\sigma$ lower than its direct estimate by
Externí odkaz:
http://arxiv.org/abs/2104.03329
Publikováno v:
Astrophysical Journal 2021
We present a novel scenario, in which light ($\sim$ few \rm{eV}) dark fermions (sterile neutrinos) interact with a scalar field like in mass varying neutrino dark energy theories. As the $\rm{eV}$ sterile states naturally become non-relativistic befo
Externí odkaz:
http://arxiv.org/abs/2005.11889
Publikováno v:
In Results in Engineering December 2023 20
Autor:
Chopra, K., Tyagi, V.V., Pathak, Sudhir Kumar, Sharma, Ravi Kumar, Mansor, Muhamad, Goel, Varun, Sari, Ahmet
Publikováno v:
In Thermal Science and Engineering Progress 1 July 2023 42
Autor:
Bhardwaj Avinash, Sharma Ravi Kumar
Publikováno v:
Studia Geotechnica et Mechanica, Vol 45, Iss 1, Pp 55-71 (2022)
In this paper, the finite element method (FEM) is applied to calculate the bearing capacity of two footings having the aspect ratio L/B (where L and B are the length and width of the footing, respectively) equal to 1, 2 resting on one-layer and two-l
Externí odkaz:
https://doaj.org/article/8dae96b66e674b029855a28a735e2965