Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Bastián Díaz"'
Autor:
Cesar Bonilla, A.E. Cárcamo Hernández, Bastián Díaz Sáez, Sergey Kovalenko, Juan Marchant González
Publikováno v:
Physics Letters B, Vol 847, Iss , Pp 138282- (2023)
We propose a Majoron-like extension of the Standard Model with an extra global U(1)X-symmetry where neutrino masses are generated through an inverse seesaw mechanism at the 1-loop level. In contrast to the tree-level inverse seesaw, our framework con
Externí odkaz:
https://doaj.org/article/cf4203d8ce6c44e7b214a04e4a016df1
Publikováno v:
Physics Letters B, Vol 844, Iss , Pp 138119- (2023)
In this research we consider a U(1)X gauge boson acting as a dark matter candidate. The vector dark matter (DM) gets mass when a complex singlet scalar breaks the gauge symmetry spontaneously, adding a second Higgs boson to the spectra. The dark matt
Externí odkaz:
https://doaj.org/article/7dccaa7c75a04108a8bcece15c353269
Publikováno v:
Journal of High Energy Physics, Vol 2021, Iss 10, Pp 1-23 (2021)
Abstract We explore a simple extension to the Standard Model containing two gauge singlets: a Dirac fermion and a real pseudoscalar. In some regions of the parameter space both singlets are stable without the necessity of additional symmetries, then
Externí odkaz:
https://doaj.org/article/fd8baf537f9b4d978c1329c9feff3739
Autor:
Sebastián Santander, Nicolás Padilla-Manzano, Bastián Díaz, Renato Bacchiega, Elizabeth Jara, Luis Felipe Álvarez, Cristóbal Pinto, Juan C. Forero, Paula Santana, Eugenio Hamm, Marcela Urzúa, Laura Tamayo
Publikováno v:
Pharmaceutics, Vol 15, Iss 6, p 1659 (2023)
The ideal treatment for chronic wounds is based on the use of bioactive dressings capable of releasing active agents. However, the control of the rate at which these active agents are released is still a challenge. Bioactive polymeric fiber mats of p
Externí odkaz:
https://doaj.org/article/1fdff40dc646489da5918fbe24d5d6bb
Autor:
Bastián Díaz Sáez, Karim Ghorbani
Publikováno v:
Physics Letters B, Vol 823, Iss , Pp 136750- (2021)
We explore a simple model containing two singlet scalars as dark matter candidates and a vector-like lepton. Evading collider and dark matter constraints, the model is able to accommodate the correct dark matter relic abundance and the (g−2)μ anom
Externí odkaz:
https://doaj.org/article/60a31f7def8d48ce9f67af977eed1c96
Autor:
Sáez, Bastián Díaz
We study thermal freeze-out in the \textit{dark axion portal} - an axion coupling to the dark photon and photon - considering the dark photon as the lightest stable particle, thereby a dark matter candidate. We pay special attention to the coscatteri
Externí odkaz:
http://arxiv.org/abs/2405.06113
We study the coscattering mechanism in a simple Higgs portal which add two real singlet scalars to the Standard Model. In this scenario, the lighter scalar is stabilized by a single $\mathcal{Z}_2$ symmetry and acts as the dark matter relic, whose fr
Externí odkaz:
http://arxiv.org/abs/2404.19057
Autor:
Sáez, Bastián Díaz
Thermal dark matter, which, after chemical decoupling from the Standard Model thermal plasma rises its yield before it freezes-out, is a new feature of thermal DM scenarios dubbed as "Bouncing Dark Matter". In the following short note, we introduce t
Externí odkaz:
http://arxiv.org/abs/2401.01368
In addition to the Standard Model, the introduction of a singlet complex scalar field that acquires vacuum expectation value may give rise to a cosmologically stable pseudo-Nambu-Goldstone boson (pNGB), a suitable dark matter (DM) candidate. This wor
Externí odkaz:
http://arxiv.org/abs/2307.07760
Autor:
Bonilla, Cesar, Hernández, A. E. Cárcamo, Sáez, Bastián Díaz, Kovalenko, Sergey, González, Juan Marchant
Publikováno v:
Physics Letters B, 847, 138282 (2023)
We propose a Majoron-like extension of the Standard Model with an extra global $U(1)_X$-symmetry where neutrino masses are generated through an inverse seesaw mechanism at the 1-loop level. In contrast to the tree-level inverse seesaw, our framework
Externí odkaz:
http://arxiv.org/abs/2306.08453