Zobrazeno 1 - 10
of 18
pro vyhledávání: '"Nimmala Narendra"'
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-14 (2021)
Abstract We propose a minimal model for the cosmic coincidence problem $$\Omega _\mathrm{DM}/\Omega _B \sim 5$$ Ω DM / Ω B ∼ 5 and neutrino mass in a type-II seesaw scenario. We extend the standard model of particle physics with a $$\mathrm SU(2)
Externí odkaz:
https://doaj.org/article/1aef7e5005ff4980917a514ee8200de2
Publikováno v:
Nuclear Physics B, Vol 962, Iss , Pp 115268- (2021)
Both neutrinoless double beta decay and leptogenesis require neutrinos to be Majorana fermions. A relation between these two phenomena can be derived once the mechanism of neutrino mass generation is specified. Using the current data from the neutrin
Externí odkaz:
https://doaj.org/article/fd84bbbefc2940e29170c66fd11c5ae1
Publikováno v:
Nuclear Physics B, Vol 950, Iss , Pp - (2020)
We study the possibility of right-handed neutrino dark matter (DM) in gauged U(1)B−L×Z2 extension of the standard model augmented by an additional scalar doublet, being odd under the Z2 symmetry, to give rise the scotogenic scenario of radiative n
Externí odkaz:
https://doaj.org/article/a3483ef1149f4b679f6cf7b183650151
Publikováno v:
Nuclear Physics B, Vol 936, Iss , Pp 76-90 (2018)
We propose an extension of the standard model with U(1)B–L×Z2 symmetry. In this model by assuming that the neutrinos are Dirac (i.e. B–L is an exact symmetry), we found a simultaneous solution for non zero neutrino masses and dark matter content
Externí odkaz:
https://doaj.org/article/9bf7e933483548029b922872ff49e9b9
Publikováno v:
In Nuclear Physics, Section B August 2022 981
Publikováno v:
Physical Review
The nature of neutrinos, whether Dirac or Majorana, is hitherto not known. Assuming that the neutrinos are Dirac, which needs $B-L$ to be an exact symmetry, we make an attempt to explain the observed proportionality between the relic densities of dar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3331f3d3ceadf5de527c1c943fcd5def
http://repo.scoap3.org/api
http://repo.scoap3.org/api
Publikováno v:
Physical Review D. 106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5cee8f6c1aa9e7a1cfb2d5b946bbfafb
https://doi.org/10.1103/physrevd.106.015001
https://doi.org/10.1103/physrevd.106.015001
Publikováno v:
Physical Review
We consider the minimal extended seesaw model which can accommodate an eV scale sterile neutrino. The scenario also includes three heavy right handed neutrinos in addition to the light sterile neutrino. In this model, the active-sterile mixing act as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0d4cff70e5c591db017a1e72af8cf9b6
http://arxiv.org/abs/2111.14719
http://arxiv.org/abs/2111.14719
Autor:
Ananya Mukherjee, Nimmala Narendra
The parameterisation proposed by Casas and Ibarra in the year 2001 have shown promising role in the extraction of neutrino Yukawa coupling which is a basic ingredient of the seesaw mechanism generating neutrino mass. We pay special attention in estab
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::89784ab340a69b9e43089c4be617de58
Publikováno v:
Springer Proceedings in Physics ISBN: 9789813344075
We study the possibility of right-handed neutrino Dark Matter (DM) in a gauged \(U(1)_{B-L} \times Z_{2}\) extension of the Standard Model (SM) which is augmented by an additional scalar doublet, being odd under \(Z_{2}\) symmetry to explain the scot
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f2af084e15c5ddae997028f39294d71
https://doi.org/10.1007/978-981-33-4408-2_41
https://doi.org/10.1007/978-981-33-4408-2_41