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
186 papers · 1 filter
Lensing and shadow of a black hole surrounded by a heavy accretion disk
Pedro V. P. Cunha, Nelson A. Eiró, Carlos A. R. Herdeiro +1
We consider a static, axially symmetric spacetime describing the superposition of a Schwarzschild black hole (BH) with a thin and heavy accretion disk. The BH-disk configuration is…
Contribution of exclusive diffractive processes to the measured azimuthal asymmetries in SIDIS
J. Agarwala, M. G. Alexeev, G. D. Alexeev +203
Hadron leptoproduction in Semi-Inclusive measurements of Deep-Inelastic Scattering (SIDIS) on unpolarised nucleons allows one to get information on the intrinsic transverse momentu…
Nonlocal effects and enhanced nonreciprocity in current-driven graphene systems
Tiago A. Morgado, Mário G. Silveirinha
A graphene sheet biased with a drift electric current offers a tantalizing opportunity to attain unidirectional, backscattering-immune, and subwavelength light propagation, as prop…
Dynamically and thermodynamically stable black holes in Einstein-Maxwell-dilaton gravity
Dumitru Astefanesei, Jose Luis Blázquez-Salcedo, Carlos Herdeiro +2
We consider Einstein-Maxwell-dilaton gravity with the non-minimal exponential coupling between the dilaton and the Maxwell field emerging from low energy heterotic string theory. T…
Classifying spaces of infinity-sheaves
Daniel Berwick-Evans, Pedro Boavida de Brito, Dmitri Pavlov
We prove that the set of concordance classes of sections of an infinity-sheaf on a manifold is representable, extending a theorem of Madsen and Weiss. This is reminiscent of an h-p…
Hydrodynamics for SSEP with non-reversible slow boundary dynamics: Part I, the critical regime and beyond
Clément Erignoux, Patricia Gonçalves, Gabriel Nahum
The purpose of this article is to provide a simple proof of the hydrodynamic and hydrostatic behavior of the SSEP in contact with slowed reservoirs which inject and remove particle…
Gravitomagnetism in the Lewis cylindrical metrics
L. Filipe O. Costa, José Natário, N. O. Santos
The Lewis solutions describe the exterior gravitational field produced by infinitely long rotating cylinders, and are useful models for global gravitational effects. When the metri…
Point Cloud Rendering after Coding: Impacts on Subjective and Objective Quality
Alireza Javaheri, Catarina Brites, Fernando Pereira +1
Recently, point clouds have shown to be a promising way to represent 3D visual data for a wide range of immersive applications, from augmented reality to autonomous cars. Emerging…
Rigid elastic solids in relativity
José Natário
After briefly reviewing the theory of relativistic elasticity, we expand a general elastic Lagrangian to quadratic order and compute the main parameters for the linear elasticity o…
Environmental effects in GW physics: tidal deformability of black holes immersed in matter
Vitor Cardoso, Francisco Duque
The tidal deformability of compact objects by a companion has a detectable imprint in the gravitational waves emitted by a binary system. This effect is governed by the so-called t…
Twisting Optomechanical Cavity
Daigo Oue, Mamoru Matsuo
Mechanical rotation and oscillation have far lower frequencies than light does; thus they are not coupled to each other conventionally. In this Letter, we show the torsional mechan…
Dynamical systems methods and statefinder diagnostic of interacting vacuum energy models
Grigoris Panotopoulos, Angel Rincon, Nelson Videla +1
We study three interacting dark energy models within the framework of four-dimensional General Relativity and a spatially flat Universe. In particular, we first consider two vacuum…
Electron swarm parameters in CH, CH and CH: measurements and kinetic calculations
N R Pinhão, D Loffhagen, M Vass +5
This work presents swarm parameters of electrons (the bulk drift velocity, the bulk longitudinal component of the diffusion tensor, and the effective ionization frequency) in C…
Doing spin physics with unpolarized particles
Igor P. Ivanov, Nikolai Korchagin, Alexandr Pimikov +1
Twisted, or vortex, particles refer to freely propagating non-plane-wave states with helicoidal wave fronts. In this state, the particle possesses a non-zero orbital angular moment…
Review and new concepts for neutron-capture measurements of astrophysical interest
C. Domingo-Pardo, V. Babiano-Suarez, J. Balibrea-Correa +128
The idea of slow-neutron capture nucleosynthesis formulated in 1957 triggered a tremendous experimental effort in different laboratories worldwide to measure the relevant nuclear p…
Searches for electroweak production of supersymmetric particles with compressed mass spectra in TeV collisions with the ATLAS detector
ATLAS Collaboration
This paper presents results of searches for electroweak production of supersymmetric particles in models with compressed mass spectra. The searches use 139 fb of $\sqrt{s}=1…
Search for long-lived neutral particles produced in collisions at TeV decaying into displaced hadronic jets in the ATLAS inner detector and muon spectrometer
ATLAS Collaboration
A search is presented for pair-production of long-lived neutral particles using 33 fb of TeV proton-proton collision data, collected during 2016 by the ATLAS…
An analysis of the graph processing landscape
Miguel E. Coimbra, Alexandre P. Francisco, Luís Veiga
The value of graph-based big data can be unlocked by exploring the topology and metrics of the networks they represent, and the computational approaches to this exploration take on…
Stability of neutral minima against charge breaking in the Higgs triplet model
P. M. Ferreira, B. L. Gonçalves
We analyse the possibility of charge breaking minima developing in the Higgs triplet model, and under what conditions they are deeper than charge-preserving ones. Analytical expres…
ATLAS data quality operations and performance for 2015-2018 data-taking
ATLAS Collaboration
The ATLAS detector at the Large Hadron Collider reads out particle collision data from over 100 million electronic channels at a rate of approximately kHz, with a recording r…
Bounded masses in Two Higgs Doublets Models, Spontaneous CP Violation and symmetry
Miguel Nebot
In Two Higgs Doublet Models (2HDMs) shaped by some unbroken symmetry, imposing perturbativity requirements on the quartic couplings can imply that the allowed masses of all the fun…
The GRAVITY Young Stellar Object survey -- I. Probing the disks of Herbig Ae/Be stars in terrestrial orbits
K. Perraut, L. Labadie, B. Lazareff +69
The formation and the evolution of protoplanetary disks are important stages in the lifetime of stars. The processes of disk evolution and planet formation are intrinsically linked…
Revisiting the characteristic initial value problem for the vacuum Einstein field equations
David Hilditch, Juan A. Valiente Kroon, Peng Zhao
Using the Newman-Penrose formalism we study the characteristic initial value problem in vacuum General Relativity. We work in a gauge suggested by Stewart, and following the strate…
On numerical errors to the fields surrounding a relativistically moving particle in PIC codes
Xinlu Xu, Fei Li, Frank S. Tsung +7
The particle-in-cell (PIC) method is widely used to model the self-consistent interaction between discrete particles and electromagnetic fields. It has been successfully applied to…