Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Sarif Khan"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-35 (2024)
Abstract We investigate dark matter phenomenology and Higgs inflation in a dark U(1) D -extended model. The model features two dark matter candidates, a dark fermion and a dark vector boson. When the fermion dark matter ψ is heavier than the vector
Externí odkaz:
https://doaj.org/article/bb57d558509d485c80f1e9a8238725f3
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 12, Pp 1-46 (2022)
Abstract We consider an extension of the Standard Model that explains the neutrino masses and has a rich dark matter phenomenology. The model has two dark matter candidates, a vector WIMP and a fermion FIMP, and the sum of their relic densities match
Externí odkaz:
https://doaj.org/article/a4a0bc3af9234312b0b9f3fd6bb933b1
Autor:
Geneviève Bélanger, Sandhya Choubey, Rohini M. Godbole, Sarif Khan, Manimala Mitra, Abhishek Roy
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 11, Pp 1-50 (2022)
Abstract We present an extension of the SM involving three triplet fermions, one triplet scalar and one singlet fermion, which can explain both neutrino masses and dark matter. One triplet of fermions and the singlet are odd under a Z 2 symmetry, thu
Externí odkaz:
https://doaj.org/article/8146400fdb09492f8961d83c6f6f5ad8
Autor:
Anirban Biswas, Sarif Khan
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 7, Pp 1-44 (2022)
Abstract The quest for new physics beyond the Standard Model is boosted by the recently observed deviation in the anomalous magnetic moments of muon and electron from their respective theoretical prediction. In the present work, we have proposed a su
Externí odkaz:
https://doaj.org/article/40753ddacd784ed0b0d6d01af3aca39b
Publikováno v:
Journal of High Energy Physics, Vol 2022, Iss 6, Pp 1-39 (2022)
Abstract We consider an extension of the Standard Model that accounts for the muon g − 2 tension and neutrino masses and study in detail dark matter phenomenology. The model under consideration includes a WIMP and a FIMP scalar dark matter candidat
Externí odkaz:
https://doaj.org/article/efe01af8014244f69c40e13c2705b231
Autor:
Sarif Khan
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 7, Pp 1-15 (2021)
Abstract In the present work, we have extended the standard model by an abelian $$U(1)_{X}$$ U ( 1 ) X gauge group and additional particles. In particular, we have extended the particle content by three right handed neutrinos, two singlet scalars and
Externí odkaz:
https://doaj.org/article/08715d91b1ac41d4a4869bc169a10d28
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 6, Pp 1-25 (2019)
Abstract The non-thermal dark matter (DM) production via the so-called freeze-in mechanism provides a simple alternative to the standard thermal WIMP scenario. In this work, we consider a popular U(1) B−L extension of the standard model (SM) in the
Externí odkaz:
https://doaj.org/article/e35c5f3e7986438ea1d4c15ca23dcfa9
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 5, Pp 1-28 (2019)
Abstract In this work, we explain three beyond standard model (BSM) phenomena, namely neutrino masses, the baryon asymmetry of the Universe and Dark Matter, within a single model and in each explanation the right handed (RH) neutrinos play the prime
Externí odkaz:
https://doaj.org/article/9e84e9207b544f498e52124b472057c0
Publikováno v:
Journal of High Energy Physics, Vol 2018, Iss 8, Pp 1-28 (2018)
Abstract We propose a model which generates neutrino masses by the inverse seesaw mechanism, provides a viable dark matter candidate and explains the muon (g−2) anomaly. The Standard Model (SM) gauge group is extended with a gauged U(1)B−L as wel
Externí odkaz:
https://doaj.org/article/bf61d732cdb5481e97fede57b1e76527
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 78, Iss 4, Pp 1-18 (2018)
Abstract It is well known that for the pure standard model triplet fermionic WIMP-type dark matter (DM), the relic density is satisfied around 2 TeV. For such a heavy mass particle, the production cross-section at 13 TeV run of LHC will be very small
Externí odkaz:
https://doaj.org/article/7af87ac851db488cb6f0a99f971158ad