CP4 miracle: shaping Yukawa sector with CP symmetry of order four

Autor: P.M. Ferreira, Igor P. Ivanov, Enrique Jiménez, Roman Pasechnik, Hugo Serôdio

Publikováno v: Journal of High Energy Physics, Vol 2018, Iss 1, Pp 1-39 (2018)

Abstract We explore the phenomenology of a unique three-Higgs-doublet model based on the single CP symmetry of order 4 (CP4) without any accidental symmetries. The CP4 symmetry is imposed on the scalar potential and Yukawa interactions, strongly shap

Externí odkaz: https://doaj.org/article/a517a7176ac942bab36236daba629804

An invisible axion model with controlled FCNCs at tree level

Autor: Alejandro Celis, Javier Fuentes-Martín, Hugo Serôdio

Publikováno v: Physics Letters B, Vol 741, Iss , Pp 117-123 (2015)

We derive the necessary conditions to build a class of invisible axion models with Flavor Changing Neutral Currents at tree-level controlled by the fermion mixing matrices and present an explicit model implementation. A horizontal Peccei–Quinn symm

Externí odkaz: https://doaj.org/article/752d8e6e674345f2a62be3aca08c178d

Anomaly-free 2HDMs with a gauged Abelian symmetry and two generations of right-handed neutrinos

Autor: Astrid Ordell, Hugo Serôdio, Roman Pasechnik

Publikováno v: Physical Review
Physical Review D

Despite the popularity of two-Higgs-doublet models (2HDMs) with a gauged abelian flavor symmetry, the allowed Yukawa textures have only been partly explored so far. In this work, we classify and compare every anomaly-free instance, in the case of hav

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d441f9a923ddff342cbcacc3b0f70d5
http://repo.scoap3.org/api

Revealing timid pseudo-scalars with taus at the LHC

Autor: Thomas Flacke, Hugo Serôdio, Giacomo Cacciapaglia, Gabriele Ferretti

Publikováno v: European Physical Journal C: Particles and Fields
European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2018, 78 (9), pp.724. ⟨10.1140/epjc/s10052-018-6183-4⟩
The European Physical Journal. C, Particles and Fields
Eur.Phys.J.C
Eur.Phys.J.C, 2018, 78 (9), pp.724. ⟨10.1140/epjc/s10052-018-6183-4⟩
European Physical Journal
European Physical Journal C: Particles and Fields, Vol 78, Iss 9, Pp 1-13 (2018)
The European Physical Journal C

A light pseudo-scalar that is copiously produced at the LHC may still be allowed by present searches. While masses above 65 GeV are effectively covered by di-photon searches, the lower mass window can be tested by a new search for boosted di-tau reso

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5e5ecb44f45ff690637161188889b4c
https://hal.archives-ouvertes.fr/hal-01876839

Maximally restrictive leptonic texture zeros in two-Higgs-doublet models

Autor: Hugo Serôdio, R. Gonzalez Felipe

Publikováno v: Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP

The implementation of maximally restrictive texture zeros in the leptonic sector is investigated in the context of two-Higgs-doublet models with Majorana neutrinos. After analyzing all maximally restrictive pairs of leptonic mass matrices with zero e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::909aeea9f2d2d825264d0d1a16a523fe