Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Nicolás Bernal"'
Publikováno v:
Journal of High Energy Physics, Vol 2024, Iss 5, Pp 1-30 (2024)
Abstract We propose a class of models providing an explanation of the origin of light neutrino masses, the baryon asymmetry of the Universe via leptogenesis and offering viable dark matter candidates. In these models the Majorana masses of the active
Externí odkaz:
https://doaj.org/article/f6050bca093c4d3bad6e9f13b33d5747
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 10, Pp 1-23 (2023)
Abstract The ATLAS Collaboration has recently reported a search for light-charged Higgs in t → H + b decay, with H + → c b ¯ $$ {H}^{+}\to c\overline{b} $$ . An excess with a local significance of approximately 3σ is found at m H + $$ {m}_{H^{+
Externí odkaz:
https://doaj.org/article/ff124ee41e77436eaed46749f2b8bf49
Autor:
Asmaa Abada, Nicolás Bernal, Antonio E. Cárcamo Hernández, Sergey Kovalenko, Téssio B. de Melo, Takashi Toma
Publikováno v:
Journal of High Energy Physics, Vol 2023, Iss 3, Pp 1-29 (2023)
Abstract We propose a scotogenic model for generating neutrino masses through a three-loop seesaw. It is a minimally extended inert doublet model with a spontaneously broken global symmetry U(1)′ and a preserved ℤ2 symmetry. The three-loop suppre
Externí odkaz:
https://doaj.org/article/3fb726a2b12d4c4db2f523a2143e6b4a
Autor:
Nicolás Bernal, Diego Restrepo
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-11 (2021)
Abstract We perform a systematic analysis of Standard Model extensions with an additional anomaly-free gauge U(1) symmetry, to generate tree-level Dirac neutrino masses. An anomaly-free symmetry demands nontrivial conditions on the charges of the una
Externí odkaz:
https://doaj.org/article/7afe1c10eac24247aaad0a9ad864f14f
Autor:
Nicolás Bernal, Yong Xu
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 10, Pp 1-12 (2021)
Abstract We present a minimal UV complete framework to embed inflation and dark matter by extending the standard model with a singlet real scalar field (the inflaton) and a singlet fermionic field acting as dark matter. The inflaton features the most
Externí odkaz:
https://doaj.org/article/a8fd2101aad64b2ca77018159ea1d1b8
Publikováno v:
European Physical Journal C: Particles and Fields, Vol 81, Iss 8, Pp 1-14 (2021)
Abstract We propose an economical model addressing the generation of the Inverse Seesaw mechanism from the spontaneous breaking of a local $$U(1)_{B-L}$$ U ( 1 ) B - L , with the Majorana masses of the sterile neutrinos radiatively generated from the
Externí odkaz:
https://doaj.org/article/8fa639150bb54620b25ba8580dcc4b21
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 4, Pp 1-29 (2021)
Abstract We study the possibility that Dark Matter (DM) is made of Feebly Interacting Massive Particles (FIMP) interacting just gravitationally with the Standard Model particles in the framework of a Clockwork/Linear Dilaton (CW/LD) model. We restric
Externí odkaz:
https://doaj.org/article/442e1eba09a14b67af6e31b6247627ef
Publikováno v:
Journal of High Energy Physics, Vol 2020, Iss 9, Pp 1-31 (2020)
Abstract We study for the first time the case in which Dark Matter (DM) is made of Feebly Interacting Massive Particles (FIMP) interacting just gravitationally with the standard model particles in an extra-dimensional Randall-Sundrum scenario. We ass
Externí odkaz:
https://doaj.org/article/f236563070014fccae0ed42a2efac350
Publikováno v:
Universe, Vol 8, Iss 12, p 634 (2022)
The axion field, the angular direction of the complex scalar field associated with the spontaneous symmetry breaking of the Peccei–Quinn (PQ) symmetry, could have originated with initial non-zero velocity. The presence of a non-zero angular velocit
Externí odkaz:
https://doaj.org/article/1ce8f7543dee43558cc50c3823f53451
Publikováno v:
Journal of High Energy Physics, Vol 2019, Iss 1, Pp 1-27 (2019)
Abstract The inclusion of heavy neutral leptons to the Standard Model particle content could provide solutions to many open questions in particle physics and cosmology. The modification of the charged and neutral currents from active-sterile mixing o
Externí odkaz:
https://doaj.org/article/85d35af2ddaa459195792ec4ceb76802