Zobrazeno 1 - 10
of 187
pro vyhledávání: '"Soumitra SenGupta"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 84, Iss 11, Pp 1-88 (2024)
Abstract We present a complete and consistent exposition of the regularization, renormalization, and resummation procedures in the setup of having a contraction and then non-singular bounce followed by inflation with a sharp transition from slow-roll
Externí odkaz:
https://doaj.org/article/f4d07fc0f80d435887a30ff9fd72b6c6
Autor:
Arko Bhaumik, Soumitra SenGupta
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 9, Pp 1-38 (2024)
Abstract We analyze the effective four-dimensional dynamics of the extra-dimensional moduli fields in curved braneworlds having nested warping, with particular emphasis on the doubly warped model which is interesting in the light of current collider
Externí odkaz:
https://doaj.org/article/9afce9e3e7b14ed8b6a3c6bbb15f0dd4
Autor:
Arko Bhaumik, Soumitra SenGupta
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 83, Iss 9, Pp 1-18 (2023)
Abstract We generalize nested multiply warped braneworld models by incorporating non-zero brane curvature caused by an effective cosmological constant $$\Omega $$ Ω induced on the 3-branes. Starting with the doubly warped model, we first analyze the
Externí odkaz:
https://doaj.org/article/6297dac2a05243da999f18d115440c45
Autor:
Arko Bhaumik, Soumitra SenGupta
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 82, Iss 11, Pp 1-19 (2022)
Abstract We examine the modulus stabilization mechanism of a warped geometry model with nested warping. Such a model with multiple moduli is known to offer a possible resolution of the fermion mass hierarchy problem in the Standard Model. A six dimen
Externí odkaz:
https://doaj.org/article/8f911afa029e437da5a358dd047b9be7
Autor:
Tanmoy Paul, Soumitra SenGupta
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 79, Iss 7, Pp 1-14 (2019)
Abstract A surprising feature of our present four dimensional universe is that its evolution appears to be governed solely by spacetime curvature without any noticeable effect of spacetime torsion. In the present paper, we give a possible explanation
Externí odkaz:
https://doaj.org/article/a0efda3cb98547ea8738878ada90c539
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 3, Pp 1-36 (2019)
Abstract Strong cosmic censorship conjecture has been one of the most important leap of faith in the context of general relativity, providing assurance in the deterministic nature of the associated field equations. Though it holds well for asymptotic
Externí odkaz:
https://doaj.org/article/87354d6d593b47bda8280e2d602283e3
Autor:
Shefali Setia Verma, Wendy K. Chung, Scott Dudek, Jennifer L. Williamson, Anurag Verma, Scott Robinson, Daniel J. Rader, Muredach P. Reilly, Soumitra Sengupta, Garret A. FitzGerald, Krzysztof Kiryluk, Marylyn D. Ritchie
Publikováno v:
Journal of Clinical and Translational Science, Vol 5 (2021)
Understanding the clinical risk factors for COVID-19 disease severity and outcomes requires a combination of data from electronic health records and patient reports. To facilitate the collection of patient-reported data, as well as accelerate and sta
Externí odkaz:
https://doaj.org/article/2af6a706a62a4c57b3bdbfb03c8d4d66
Publikováno v:
Universe, Vol 8, Iss 1, p 26 (2022)
Primordial magnetic field generated in the inflationary era can act as a viable source for the present day intergalactic magnetic field of sufficient strength. We present a fundamental origin for such a primordial generation of the magnetic field, na
Externí odkaz:
https://doaj.org/article/0b7aa3ca84944b888f279fb7dde255c0
Autor:
Tanmoy Paul, Soumitra SenGupta
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 4, Pp 1-9 (2018)
Abstract We consider a five dimensional warped spacetime where the bulk geometry is governed by higher curvature F(R) gravity. In this model, we determine the modulus potential originating from the scalar degree of freedom of higher curvature gravity
Externí odkaz:
https://doaj.org/article/b25176a3a08948d38548bdc570f39b82
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 2, Pp 1-11 (2018)
Abstract We consider a five dimensional AdS spacetime in presence of higher curvature term like $$F(R) = R + \alpha R^2$$ F(R)=R+αR2 in the bulk. In this model, we examine the possibility of modulus stabilization from the scalar degrees of freedom o
Externí odkaz:
https://doaj.org/article/b9c3bfabed6c40ef811966925d10a8a6