Zobrazeno 1 - 10
of 546
pro vyhledávání: '"Freitas, P. F."'
In this manuscript, we discuss the confinement of the spin $\frac{1}{2}$ field on a plethora of branewords models. Recently, in (Eur.Phys.J.C 80 (2020) 5, 432), we studied the consistency of the Standard Model (SM) fields localization on braneworlds
Externí odkaz:
http://arxiv.org/abs/2212.02259
Autor:
Gonçalves, Gonçalo, Ferreira, Márcio, Aveiro, João, Onofre, Antonio, Freitas, Felipe F., Providência, Constança, Font, José A.
The use of the Audio Spectrogram Transformer (AST) model for gravitational-wave data analysis is investigated. The AST machine-learning model is a convolution-free classifier that captures long-range global dependencies through a purely attention-bas
Externí odkaz:
http://arxiv.org/abs/2210.08382
Autor:
Aveiro, João, Freitas, Felipe F., Ferreira, Márcio, Onofre, Antonio, Providência, Constança, Gonçalves, Gonçalo, Font, José A.
We demonstrate the application of the YOLOv5 model, a general purpose convolution-based single-shot object detection model, in the task of detecting binary neutron star (BNS) coalescence events from gravitational-wave data of current generation inter
Externí odkaz:
http://arxiv.org/abs/2207.00591
A minimal extension of the Standard Model (SM) featuring two scalar leptoquarks, an SU(2) doublet with hypercharge 1/6 and a singlet with hypercharge 1/3, is proposed as an economical benchmark model for studies of an interplay between flavour physic
Externí odkaz:
http://arxiv.org/abs/2206.01674
In this work, we continue our exploration of TeV-scale vector-like fermion signatures inspired by a Grand Unification scenario based on the trinification gauge group. A particular focus is given to pair-production topologies of vector-like quarks (VL
Externí odkaz:
http://arxiv.org/abs/2204.12542
Autor:
Yang, Hao, Freitas, Felipe F., Marciano, Antonino, Morais, António P., Pasechnik, Roman, Viana, João
A chiral-symmetric technicolor model successfully reconciles the tension between electroweak precision tests and traditional technicolor models. Focusing on its simplest realization preserving the conventional Higgs mechanism, we study its primordial
Externí odkaz:
http://arxiv.org/abs/2204.00799
Autor:
Freitas, Felipe F., Herdeiro, Carlos A. R., Morais, António P., Onofre, António, Pasechnik, Roman, Radu, Eugen, Sanchis-Gual, Nicolas, Santos, Rui
Current gravitational wave (GW) detections rely on the existence of libraries of theoretical waveforms. Consequently, finding new physics with GWs requires libraries of non-standard models, which are computationally demanding. We discuss how deep lea
Externí odkaz:
http://arxiv.org/abs/2203.01267
Autor:
Ferreira, Pedro M., Freitas, Felipe F., Gonçalves, João, Morais, António P., Pasechnik, Roman, Vatellis, Vasileios
In this paper, we present several possible anomaly-free implementations of the Branco-Grimus-Lavoura (BGL) model with two Higgs doublets and one singlet scalar. The model also includes three generations of massive neutrinos that get their mass via a
Externí odkaz:
http://arxiv.org/abs/2202.13153
Autor:
Freitas, Felipe F., Lourenço, Gabriel, Morais, António P., Nunes, André, Olívia, João, Pasechnik, Roman, Santos, Rui, Viana, João
In this work we discuss two different phases of a complex singlet extension of the Standard Model (SM) together with an extension that also includes new fermion fields, in particular, a Majoron model equipped with an inverse seesaw mechanism. All con
Externí odkaz:
http://arxiv.org/abs/2108.12810
Autor:
Morais, António P., Onofre, António, Freitas, Felipe F., Gonçalves, João, Pasechnik, Roman, Santos, Rui
The discovery potential of both singlet and doublet vector-like leptons (VLLs) at the Large Hadron Collider (LHC) as well as at the not-so-far future muon and electron machines is explored. The focus is on a single production channel for LHC direct s
Externí odkaz:
http://arxiv.org/abs/2108.03926