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1º Encontro Nacional da Associação de Física de Interacções Fortes
Friday, July 14, 2017 -
9:00 AM
Monday, July 10, 2017
Tuesday, July 11, 2017
Wednesday, July 12, 2017
Thursday, July 13, 2017
Friday, July 14, 2017
10:30 AM
Abertura
Abertura
10:30 AM - 11:00 AM
11:00 AM
Spin 0 and spin 1 low-lying meson spectra within a chiral model with explicit symmetry breaking effects.
-
Jorge Morais
(
FCTUC / CFisUC
)
Spin 0 and spin 1 low-lying meson spectra within a chiral model with explicit symmetry breaking effects.
Jorge Morais
(
FCTUC / CFisUC
)
11:00 AM - 11:30 AM
An NJL-type three-flavor quark model with a complete set of explicit chiral symmetry breaking terms is extended to accommodate spin 1 mesons upon bosonization. The bosonized Lagrangian is analyzed up to quadratic order in the meson fields. Analytic relations between spin 0 and spin 1 meson masses are obtained. The vector mesons are shown to play a major role in the model's predictions for the constituent quark masses. Finally, it is shown that the parameters can be adjusted to accurately reproduce the four low-lying meson nonets.
11:30 AM
Magnetized QCD phase diagram
-
Márcio Ferreira
(
CFisUC
)
Magnetized QCD phase diagram
Márcio Ferreira
(
CFisUC
)
11:30 AM - 12:00 PM
The effects of external magnetic fields on the phase diagram structure of QCD are studied. We use NJL-type models to investigate the impact of magnetic fields on both chiral and deconfinement phase transitions. We focus on possible consequences of the Inverse Magnetic Catalysis effect on Critical-End-Point (CEP).
12:00 PM
Hot gluons on the lattice: how do gluons propagate in a hot and non-dense medium?
-
Paulo Silva
(
CFisUC
)
Hot gluons on the lattice: how do gluons propagate in a hot and non-dense medium?
Paulo Silva
(
CFisUC
)
12:00 PM - 12:30 PM
The gluon propagator at finite temperature is investigated via lattice simulations focusing on the volume and lattice spacing dependence and its interpretation as a massive-type bosonic propagator. Moreover, we compute the corresponding spectral density and study the violation of spectral positivity. Finally, we explore the dependence of the gluon propagator on the phase of the Polyakov loop.
12:30 PM
Almoço
Almoço
12:30 PM - 2:00 PM
2:00 PM
Gluon and Ghost Dynamics from Lattice QCD
-
Orlando Oliveira
(
CFisUC
)
Gluon and Ghost Dynamics from Lattice QCD
Orlando Oliveira
(
CFisUC
)
2:00 PM - 2:30 PM
The two point gluon and ghost correlation functions and the three gluon vertex are investigated, in the Landau gauge, using lattice simulations. For the two point function, we discuss the approach to the continuum limit looking at the lattice spacing and volume dependences. The analytical structure of the propagators is also investigated by computing the corresponding spectral functions using an implementation of the Thikonov regularisation to solve the integral equation. For the three point function we report results when the momentum of one of the gluon lines is set to zero and discuss its implications
2:30 PM
Hadron production and suppression in hadron collisions
-
Nuno Leonardo
(
LIP
)
Hadron production and suppression in hadron collisions
Nuno Leonardo
(
LIP
)
2:30 PM - 3:00 PM
The LHC provides unique datasets gathered by colliding different hadron species at different energies. These rich data are explored towards shedding light on the QCD mechanisms of hadroproduction and suppression. We present a selection of related measurements performed in the heavy flavour sector.
3:00 PM
Tetraquark resonances computed with static lattice QCD potentials and scattering theory
-
Pedro Bicudo
(
IST Lisboa
)
Tetraquark resonances computed with static lattice QCD potentials and scattering theory
Pedro Bicudo
(
IST Lisboa
)
3:00 PM - 3:30 PM
We study tetraquark resonances with lattice QCD potentials computed for two static quarks and two dynamical quarks, the Born-Oppenheimer approximation and the emergent wave method of scattering theory. As a proof of concept we focus on systems with isospin I = 0, but consider different relative angular momenta l of the heavy b quarks. We compute the phase shifts and search for S and T matrix poles in the second Riemann sheet. We predict a new tetraquark resonance for l =1, decaying into two B mesons, with quantum numbers I(JP) = 0(1-), mass m= 10576 (+4 -4) MeV and decay width Gamma = 112 (+90 -103) MeV.
3:30 PM
Pausa para café
Pausa para café
3:30 PM - 4:00 PM
4:00 PM
Mesa redonda: Futuro e oportunidades das interacçoes fortes.
Mesa redonda: Futuro e oportunidades das interacçoes fortes.
4:00 PM - 5:00 PM
Grupo de discussão moderado por Brigitte Hiller (CFisUC) e Pedro Bicudo (IST)