Conveners
Working Group: QCD
- Norberto Scoccola
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María Florencia Izzo Villafañe10/05/2018, 14:30
We study the behavior of strongly interacting matter under a uniform intense external magnetic field in the context of nonlocal extensions of the Polyakov–Nambu–Jona-Lasinio model. A description of the formalism is presented, considering the cases of zero and finite temperature. In particular, we analyze the effect of the magnetic field on the chiral restoration and deconfinement transitions,...
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Dr Ana Gabriela Grunfeld (CONICET - CNEA)10/05/2018, 14:40
We study the thermodynamic properties of finite systems at zero chemical potential and finite temperature, in the frame of the Polyakov loop Nambu-Jona-Lasinio model for two light and one heavy quarks. Finite size effects are considered whithin the Multiple Reflection Expansion formalism. We analyze some thermodynamic quantities including the equation of state, the interaction measure, the...
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Máximo Coppola (CNEA)10/05/2018, 14:50
The behavior of charged pion masses in the presence of a static uniform magnetic field is studied in the framework of the two-flavor NJL model, using a magnetic field-independent regularization scheme. Analytical calculations are carried out employing the Ritus eigenfunction method, which allows us to properly take into account the presence of Schwinger phases in the quark propagators....
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Gustavo Contrera (IFLP (UNLP-CONICET))10/05/2018, 15:00
The discovery of high mass Millisecond Pulsars such as J1946+3417 ($1.832 \pm 0.028 M_\odot$), J1614-2230 ($1.928 \pm 0.017 M_\odot$) and J0348+0432 ($2.01 \pm 0.04 M_\odot$) allows the
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possible existence of deconfined quarks in the Neutron Stars inner core. In order to represent the matter under extremely high density conditions, we obtain a hadron-quark hybrid equation of state by... -
Dr Milva Gabriela Orsaria (Facultad de Ciencias Astronomicas y Geofisicas)10/05/2018, 15:10
The study of neutron stars establishes a direct connection between astronomy and nuclear and particle physics, allowing a better understanding of the behavior of matter under conditions that are difficult to reach in the laboratory. Massive neutron stars provide very important constraints on high-density nuclear matter and its associated Equation of State (EoS), which is still essentially...
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Juan Pablo Carlomagno (IFLP-CONICET)10/05/2018, 15:20
We study the dynamics of inhomogeneous scalar and pseudoscalar chiral order parameters within the framework of the time-dependent Ginzburg-Landau equations. We utilize a nonlocal chiral quark model to obtain the phase diagram of the model as function of temperature and baryon chemical potential and study the formation of metastable spatial domains of matter where the order parameters acquire a...
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Dr Ana Gabriela Grunfeld (CONICET - CNEA)10/05/2018, 15:30
We suggest a class of hybrid compact star equations of state which support the existence of a third family of compact stars composed of a core of two-flavor
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quark matter and a shell of hadronic matter described within a relativistic meanfield model with excluded nucleon volume.
The quark matter equation of state is based on a nonlocal covariant chiral quark model with vector meson and...