18.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of LisbonPT1.3k papers
- Universidade Técnica de LisboaPT388 papers
- Centre National de la Recherche ScientifiqueFR326 papers
- Instituto de Plasmas e Fusão NuclearPT209 papers
- European Organization for Nuclear ResearchCH202 papers
- Centro de Física Teórica de Partículas201 papers
- Instituto Politécnico de LisboaPT190 papers
- Instituto de TelecomunicaçõesPT175 papers
- Universitat de ValènciaES175 papers
- Institut National de Physique Nucléaire et de Physique des ParticulesFR143 papers
- Centro de Astrofísica e GravitaçãoPT133 papers
- LIP - Laboratory of Instrumentation and Experimental Particle PhysicsPT133 papers
21 papers · 2 filters
The signal of ill-defined CPT weakening entanglement in the system
Jose Bernabeu, Francisco J. Botella, Nick E. Mavromatos +1
In the presence of quantum gravity fluctuations (space-time foam), the CPT operator may be ill-defined. Its perturbative treatment leads to a modification of the Einstein-Podolsky-…
Anatomy of the Inert Two Higgs Doublet Model in the light of the LHC and non-LHC Dark Matter Searches
Alexander Belyaev, Giacomo Cacciapaglia, Igor P. Ivanov +2
The inert Two Higgs Doublet Model (i2HDM) is a theoretically well-motivated example of a minimal consistent Dark Matter(DM) model which provides mono-jet, mono-Z, mono-Higgs and Ve…
Higgs EFT for 2HDM and beyond
Hermès Bélusca-Maïto, Adam Falkowski, Duarte Fontes +2
We discuss the validity of the Standard Model Effective Field Theory (SM EFT) as the low-energy effective theory for the two-Higgs-doublet Model (2HDM). Using the up-to-date Higgs…
Why static bound-state calculations of tetraquarks should be met with scepticism
George Rupp, Eef van Beveren
Recent experimental signals have led to a revival of tetraquarks, the hypothetical hadronic states proposed by Jaffe in 1976 to explain the light scalar mesons. Meso…
Vector-like Quarks at the Origin of Light Quark Masses and Mixing
Francisco J. Botella, G. C. Branco, Miguel Nebot +2
We show how a novel fine-tuning problem present in the Standard Model can be solved through the introduction of a single flavour symmetry G, together with three quarks,…
Angular Structure of Jet Quenching Within a Hybrid Strong/Weak Coupling Model
Jorge Casalderrey-Solana, Doga Gulhan, Guilherme Milhano +2
Within the context of a hybrid strong/weak coupling model of jet quenching, we study the modification of the angular distribution of the energy within jets in heavy ion collisions,…
Momentum correlations of scattered particles in quantum field theory: one-loop entanglement generation
Ricardo Faleiro, Rafael Pavão, Helder Alexander +3
We compute the entanglement entropy variation between initial (separable or entangled in the momenta) and final states in an elastic scattering of a bipartite system compose…
Optimizing the octant search in long baseline neutrino experiments
C. R. Das, Jukka Maalampi, Joao Pulido +1
We study the possibility of determining the octant of the neutrino mixing angle , that is, whether or , in long baseline neutrino experi…
Mapping chiral symmetry breaking in the excited baryon spectrum
Pedro Bicudo, Marco Cardoso, Felipe J. Llanes-Estrada +1
We study the conjectured "Insensitivity to Chiral Symmetry Breaking" in the highly excited light baryon spectrum. While the experimental spectrum is being measured at JLab and CBEL…
Unquenching the meson spectrum: a model study of excited resonances
George Rupp, Susana Coito, Eef van Beveren
Quark models taking into account the dynamical effects of hadronic decay often produce very different predictions for mass shifts in the hadron spectrum. The consequences for meson…
CP Violation in the scalar sector
D. Emmanuel-Costa, O. M. Ogreid, P. Osland +1
Models with an extended scalar sector may in principle provide new sources of CP violation originating in the scalar potential. One of the simplest ways to implement this idea is t…
Black holes and gravitational waves in models of minicharged dark matter
Vitor Cardoso, Caio F. B. Macedo, Paolo Pani +1
In viable models of minicharged dark matter, astrophysical black holes might be charged under a hidden symmetry and are formally described by the same Kerr-Newman solution o…
Scotogenic model for co-bimaximal mixing
P. M. Ferreira, W. Grimus, D. Jurciukonis +1
We present a scotogenic model, i.e. a one-loop neutrino mass model with dark right-handed neutrino gauge singlets and one inert dark scalar gauge doublet , which has symmetries…
On quasidegeneracy of Majorana neutrinos and the observed pattern of Leptonic mixing
M. N. Rebelo
We relate the observed pattern of leptonic mixing to the quaidegeneracy of three Majorana neutrinos. We show how lifting the degeneracy may lead to the measured value of …
What if the Masses of the First Two Quark Families are not Generated by the Standard Higgs?
F. J. Botella, G. C. Branco, M. N. Rebelo +1
We point out that, in the context of the SM, is expected to be large, of order one. The fact that mo…
Neutrino observables from predictive flavour patterns
Luis M. Cebola, David Emmanuel-Costa, Ricardo Gonzalez Felipe
We look for predictive flavour patterns of the effective Majorana neutrino mass matrix that are compatible with current neutrino oscillation data. Our search is based on the assump…
Multiboson production in W' decays
J. A. Aguilar-Saavedra, F. R. Joaquim
In models with an extra gauge group and an extended scalar sector, the cascade decays of the boson can provide various multiboson signals. In particular, dibo…
Origins of the di-jet asymmetry in heavy ion collisions
José Guilherme Milhano, Korinna Christine Zapp
The di-jet asymmetry --- the measure of the momentum imbalance in a di-jet system --- is a key jet quenching observable. Using the event generator \jewel we show that the di-jet as…
A CP-conserving multi-Higgs model without real basis
I. P. Ivanov, Joao P. Silva
Models beyond the Standard Model (bSM) often involve elaborate Higgs sectors, which can be a source of CP-violation. It brings up the question of recognizing in an efficient way wh…
Spontaneous symmetry breaking in the -symmetric scalar sector
D. Emmanuel-Costa, O. M. Ogreid, P. Osland +1
We present a detailed study of the vacua of the -symmetric three-Higgs-doublet potential, specifying the region of parameters where these minimisation solutions occur. We work…
Two Higgs doublet models with an symmetry
D. Cogollo, João P. Silva
We study all implementations of the symmetry in the two Higgs doublet model with quarks, consistent with non-zero quark masses and a Cabibbo-Kobayashi-Maskawa (CKM) matrix wh…