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Dr Craig Roberts (Argonne National Laboratory)23/03/2015, 09:00Primer on continuum QCDGo to contribution page
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Prof. Gert Aarts (Swansea University)23/03/2015, 10:30Lattice QCD at nonzero baryon numberGo to contribution page
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Prof. Andrew Steiner (UTK/ORNL)23/03/2015, 11:30The EOS of dense matter and neutron star structureGo to contribution page
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Prof. Tereza Mendes (University of São Paulo)23/03/2015, 15:30We investigate the critical behavior of electric and magnetic gluon propagators around the deconfinement phase transition for SU(2) gauge theory on the lattice. We test the critical properties of these correlation functions and extract screening masses from their behavior.Go to contribution page
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Prof. Fernando Navarra (USP)23/03/2015, 16:00Hadronic structure - reactions, production and decaysOral presentationWe present a short review of the theoretical and experimental status of $X(3872)$ production in high energy proton-proton and nucleus-nucleus collisions at the LHC. We then discuss the interaction of the $X(3872)$ with light mesons in a hadron gas.Go to contribution page
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Dr Raphael M. Albuquerque (University of São Paulo)23/03/2015, 16:30Hadronic structure - reactions, production and decaysOral presentationWe calculate the branching ratio for the production of the meson $Y(4260)$ in the decay $B^- \to Y(4260)K^-$. We use QCD sum rules approach and we consider the $Y(4260)$ to be a mixture between charmonium and exotic tetraquark, $[\bar{c}\bar{q}][qc]$, states with $J^{PC}=1^{--}$. Using the value of the mixing angle determined previously as: $\theta=(53.0\pm0.5)^\circ$, we get the branching...Go to contribution page
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Prof. Luciano Abreu (UFBA)23/03/2015, 17:30Hadronic structure - reactions, production and decaysOral presentationWe perform a field-theoretical study of possible deuteron-like molecules with both open charm and bottom, using the Heavy-Meson Effective Theory. In this approach, we analyze the parameter space of the coupling constants and discuss the formation of loosely-bound $D^{(*)} B^{(*)} $-states. We estimate their masses and other properties.Go to contribution page
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Dr Ishtiaq Ahmed (UNICSUL)23/03/2015, 18:00Hadronic structure - reactions, production and decaysOral presentationIn this study, we investigate the electromagnetic form factors, $F^{em}_{X^{0^-}}$, decay constants, $f_{X^{0^-}}$, and charge radii, $\langle r_{X^{0^-}}\rangle$, where $X^{0^-}=\pi^+\text{ or }K^+$, for pion and kaon within the frame work of light-front field theory formalism using symmetric vertex function as a quark-meson interaction vertex. The above mentioned observables are evaluated...Go to contribution page
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Dr Gilberto Ramalho (UFRN)23/03/2015, 18:30Hadronic structure - reactions, production and decaysOral presentationOne of the challenges of the modern physics is the description of the internal structure of the baryons and mesons. The electromagnetic structure of the nucleon $N$ and the nucleon resonances $N^\ast$ can be accessed through the $\gamma^\ast N \to N^\ast$ reactions, which deppend of the (photon) transfer momentum squared $Q^2$ [1--4]. The data associated with those transitions...Go to contribution page
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Prof. Daniel Gomez Dumm (UNLP)23/03/2015, 19:00Strong and electroweak interactions in the standard modelOral presentationTau decays are analyzed within the framework of resonance chiral theory. This is an extension of chiral perturbation theory in which resonances are incorporated as dynamical states in the Lagrangian, making use of both chiral symmetry and large N_C considerations. It is seen that after imposing asymptotic QCD constraints, a few effective coupling constants need to be fitted from...Go to contribution page
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Dr Burkhard Schmidt (CERN)24/03/2015, 09:00An overview about the of High Luminosity upgrade of the LHC and the detector upgradesGo to contribution page
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Dr Craig Roberts (Argonne National Laboratory)24/03/2015, 10:30The ins and outs of mesonsGo to contribution page
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Prof. Gert Aarts (Swansea University)24/03/2015, 11:30The QCD phase diagram at real and imaginary chemical potentialGo to contribution page
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Prof. Gastão Krein (UNESP)24/03/2015, 15:30There is a remarkable prediction of QCD that the leptonic decay constants of the excited states of the pion are dramatically suppressed relative to that of the ground-state pion - in the chiral limit, the decay constants of the excited pions are exactly zero. Although within a quark model perspective a suppression of a leptonic decay constant for excited states is expected, as it is...Go to contribution page
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Prof. Henrique Boschi (UFRJ)24/03/2015, 16:00We review some hadron properties obtained from holographic AdS/QCD models.Go to contribution page
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Prof. Wayne de Paula (ITA)24/03/2015, 16:30We construct a Dynamical AdS/QCD model for Light-Mesons and Baryons. The model is a solution of five-dimensional Einstein-dilaton equations that encodes essential features of holographic QCD backgrounds dynamically. Our solution for the gravity background corresponds to a deformed Anti-de Sitter metric at the relevant QCD scale. In this unified model we obtained Regge Trajectories for...Go to contribution page
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Prof. Alberto Correa Dos Reis (CBPF - Brazilian Center for Physics Research (BR))24/03/2015, 17:30Strong and electroweak interactions in the standard modelOral presentationCharmless three-body decays of $B^+$ mesons are an excellent laboratory for direct CP violation (CPV) studies. While in two-body decays one measures a single number - the CP asymmetry in the partial decay rates -, in three-body decays the distribution of CP asymmetries across the two-dimensional phase space brings additional information on the underlying mechanisms. Recently the LHCb...Go to contribution page
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Prof. Tobias Frederico (Instituto Tecnologico de Aeronautica)24/03/2015, 18:00Strong and electroweak interactions in the standard modelOral presentationWe will discuss recent results for the formulation of charged three-body $B$ decays in charmless channels, like $KKK$, $\pi\pi$, $KK\pi$, and $\pi\pi\pi$, introducing the final state interaction in the decay amplitude with relation to the CPT constraint, while CP violation is allowed. We consider the s-wave interaction between the mesons, coupling between different decay channels and a...Go to contribution page
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Prof. Emmanuel de Oliveira (UFSC)24/03/2015, 18:30Strong and electroweak interactions in the standard modelOral presentationWe consider the opening angle as an evolution variable for parton distributions. This allow us to take into account both DGLAP and BFKL leading logarithms and arrive at a single evolution equation, useful for Monte Carlo simulations. Most current global analysis only take into account DGLAP effects, therefore the use of our evolution equation should be particularly important at small *x*.Go to contribution page
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Prof. Giorgio Torrieri (JW Goethe Universitat, Frankfurt)24/03/2015, 19:00Strong and electroweak interactions in the standard modelOral presentationWe discuss the relevance of the Unruh effect in multiparticle processes. We review the cases where it is nothing more than an effective description of "conventional" multi-particle processes describeable, in the inertial frame, through standard scattering theory, and discuss cases where this equivalency breaks down. We suggest that an experimental investigation of this issue, achievable in...Go to contribution page
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Prof. Debora Menezes (UFSC)24/03/2015, 21:00Hadron physics stands somewhere in the diffuse intersection between nuclear and particle physics and relies largely on the use of models. Historically, around 1930, the first nuclear physics models known as the liquid drop model and the semi-empirical mass formula established the grounds for the study of nuclei properties and nuclear structure. These two models are parameter dependent....Go to contribution page
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Prof. Andrew Steiner (UTK/ORNL)25/03/2015, 09:00Transport properties in dense matter and neutron star evolutionGo to contribution page
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Dr Burkhard Schmidt (CERN)25/03/2015, 10:30The physics reach and the performance requirements for the experimentsGo to contribution page
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Dr Craig Roberts (Argonne National Laboratory)25/03/2015, 11:30Baryons, as they really areGo to contribution page
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Prof. Gert Aarts (Swansea University)26/03/2015, 09:00Complex Langevin dynamics as a solution to the sign problemGo to contribution page
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Dr Leticia Palhares (UERJ)26/03/2015, 10:30In this seminar, we investigate the role of a non-perturbative breaking of the BRST invariance in the infrared regime of non-Abelian gauge theories and its possible relation to confinement. This breaking naturally arises from the procedure of quantization of Landau-gauge Yang-Mills theories that takes into account the presence of Gribov copies. The resulting non-perturbative framework...Go to contribution page
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Prof. Bruno Mintz (UERJ)26/03/2015, 11:00The grand partition function of a model of confined quarks is exactly calculated at arbitrary temperatures and quark chemical potentials. The model is inspired by a softly BRST-broken version of QCD and possesses a quark mass function compatible with nonperturbative analyses of lattice simulations and Dyson-Schwinger equations. Even though the model is defined at tree level, we show that it...Go to contribution page
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Dr Rômulo Rougemont (USP)26/03/2015, 11:30We obtain holographic formulas for the transport coefficients $\kappa$ and $\tau_\pi$ present in the second-order derivative expansion of relativistic hydrodynamics in curved spacetime associated with a non-conformal strongly coupled plasma described holographically by an Einstein+Scalar action in the bulk. We compute these coefficients as functions of the temperature in a bottom-up...Go to contribution page
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Prof. Jorge Horvath (IAG-USP)26/03/2015, 12:00Hadronic and quark matter - applications in astrophysicsOral presentationRelativistic binary systems showing the ablation of the donor star by pulsar winds have been discovered in 1988 and studied recently using FermiLat and other facilities. We discuss in this presentation the evolution of the "black widow" systems, showing that theoretical tracks reveal i) the importance of illumination feedback of X rays onto the donor star, ii) a long (several Gyr) overall...Go to contribution page
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Prof. João de Mello Neto (Federal University of Rio de Janeiro)26/03/2015, 15:30Hadronic and quark matter - applications in astrophysicsOral presentationUltra-high energy cosmic rays (UHECR) are the highest energy messengers of the present universe, with energies up to $10^{20}$ eV. Studies of astrophysical particles (hadrons, neutrinos and photons) at their highest observed energies have implications for fundamental physics as well as astrophysics. The primary particles interacts in the atmosphere and generates an extensive air shower....Go to contribution page
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Prof. Murilo Santana Rangel (Univ. Federal do Rio de Janeiro (BR))26/03/2015, 16:30Relativistic heavy-ion reactions - new data, analyses and modelsOral presentationThe LHCb collaboration studied the production of J/Psi and Upsilon mesons in proton-lead collisions at a proton nucleon centre-of-mass energy of 5 TeV. The measurements have been used to determine the nuclear modification factor and to compare the results with theoretical predictions. A measurement of Z boson production in proton-lead collisions is presented as well. The analyses are based on...Go to contribution page
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Dr Alexis Jean-Michel Mas (Universidade de Sao Paulo (BR))26/03/2015, 17:30Relativistic heavy-ion reactions - new data, analyses and modelsOral presentationThe ALICE experiment is mainly devoted to the study of quark-gluon plasma (QGP) expected to be created in heavy ion collisions. Since electromagnetic probes do not interact strongly whith the QGP, direct photons are reliable witnesses of the energy of the initial hard process. This property allows one to investigate, e.g., hadrons energy loss mechanisms in the medium via gammajet...Go to contribution page
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Dr Sudipan De (USP)26/03/2015, 18:00Relativistic heavy-ion reactions - new data, analyses and modelsOral presentationMeasurements of multiplicity and pseudorapidity distributions of particles produced in pp collisions are important for the study of particle production mechanisms and to obtain baseline distributions to be compared with those from heavy-ion collisions. The inclusive photon measurements (dominated by $\pi^{0}$ decays) are complementary to the charged particle measurements. The present work...Go to contribution page
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Dr Helena Pais (University of Coimbra)27/03/2015, 09:00Hadronic and quark matter - applications in astrophysicsOral presentationThe pasta phase in core-collapse supernova matter (finite temperatures and fixed pro- ton fractions) is studied within relativistic mean field models. Three different calculations are used for comparison, the Thomas-Fermi (TF), the Coexistence Phase (CP) and the Compressible Liquid Drop (CLD) approximations. The effects of including light clusters in nuclear matter and the densities at...Go to contribution page
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Prof. Alexandre Santos (UFSC)27/03/2015, 09:30Hadronic and quark matter - applications in astrophysicsOral presentationIn the present paper we employ the quark-meson coupling model (QMC) to investigate the onset of the pasta phase in nuclear matter under conditions such as those expected in neutron star crusts. Pasta is obtained with fixed proton fractions and for beta equilibrated matter. We probe our results into restrictions imposed on the the values of the density and pressure at the inner edge...Go to contribution page
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Prof. Andrew Steiner (UTK/ORNL)27/03/2015, 10:30Nuclear structure and the neutron star crustGo to contribution page
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Dr Burkhard Schmidt (CERN)27/03/2015, 11:30Challenges and developments in detector technologies, electronics and computingGo to contribution page
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Prof. Ângelo CERQUEIRA JR (UNIFOA)Hadronic structure - reactions, production and decaysPosterIn this work, we calculate the form factors and the coupling constant of the strange-charmed vertex $J/ψD^∗_s D_s$ in the framework of the QCD sum rules by studying their three-point correlation functions. All the possible off-shell cases are considered, $D_s$, $D^∗_s$ and $J/ψ$, resulting in three different form factors. These form factors are extrapolated to the pole of their respective...Go to contribution page
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Prof. Luis Augusto Trevisan (State University of Ponta Grossa)Field theoretical approaches to QCDPosterA simple statistical model is developed with the Fock states being the meson-hadron fluctuation. As expected, a insight about the violation of the Gottfried sum rule is obtained,and we discussed the possible relation between the temperature and the scattering energy. We notice that with this model, there is small decrease of the GSR, with very high energies. The model may predict also small a...Go to contribution page
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Dr Vitor Gigante (ITA)Field theoretical approaches to QCDPosterIn this work, the Nakanishi perturbative integral representation is, for the first time, used to numerically solve the problem of relativistic bound state of two bosons in 2 + 1 dimensions in space Minkowski. The Nakanishi perturbative integral representation of the Bethe-Salpeter amplitude in three (2+1) dimensions is used in order to obtain the spectrum and structure of bound states,...Go to contribution page
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Dr Bruno Osorio Rodrigues (CBPF)Hadronic structure - reactions, production and decaysPosterIn the past few decades, the QCD sum rules (QCDSR) community, has been working actively in the calculation of strong coupling constants of a large variety of interaction vertices between mesons. Particularly, our QCDSR group has been working extensively in the charm sector, with the calculation of a vast number of coupling constants as the $D^{ * } D \pi$, $D^{( * )} D^{( * )} \rho$, $J/\psi...Go to contribution page
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Mr Jeyner Castro Cardona (UNICAMP)Strong and electroweak interactions in the standard modelPosterWe study in detail the nonperturbative modifications caused to the dynamical quark mass by the inclusion of a small number of quark families in the gluon propagator and ghost dressing function obtained from the unquenched lattice simulations. We solve the quark gap equation using a non-Abelian Ansatz for the quark-gluon vertex which displays a crucial dependence on the ghost dressing...Go to contribution page
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Mr Pablo Guillermo Allen (CNEA - CAC)Hadronic and quark matter - applications in astrophysicsPosterWe study the effect of intense magnetic fields on the phase diagram of cold, strongly interacting matter within an extended version of the Nambu-Jona-Lasinio model that includes flavor mixing effects and vector interactions. Different values of the relevant model parameters in acceptable ranges are considered. Charge neutrality and beta equilibrium effects, which are specially relevant to the...Go to contribution page
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Prof. Bruno El-Bennich (UNICSUL)Field theoretical approaches to QCDPosterWe discuss theoretical approaches to form factors in heavy-meson decays, e.g. weak decay constants, transition form factors and effective heavy-to-light meson couplings, which are hadronic expressions of nonperturbative QCD. After motivating their origin in QCD factorization and heavy quark effective theories, we retrace their evolution from earlier quark-model calculations to non-perturbative...Go to contribution page
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Prof. Luis Almeida (UFAC)Hadronic and quark matter - applications in astrophysicsPosterIn this work we present a schematic description of the dynamical evolution of a protoneutron star which begins to burn neutron matter into strange matter inside the core. We have used a simple two-shell model where the inner shell medium is initially composed of a small lump of strange quark matter surrounded by an outer shell composed of free neutron matter. In a first attempt, we have...Go to contribution page
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Mr Eduardo Lenho Coelho (UERJ)Hadronic and quark matter - applications in astrophysicsPosterOne of the most interesting kind of neutron stars are the pulsars, which are highly magnetized neutron stars with fields up to $10^{14}$G at the surface. The strength of magnetic field in the center of a neutron star remains unknown. According to the scalar virial theorem, magnetic field in the core could be as large as $10^{18}$G. Emissivity of neutrinos by the direct Urca process is the...Go to contribution page
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Mr Jorge Nogueira (ITA)Hadronic and quark matter - applications in astrophysicsPosterIn three-body charmless $B^{\pm}$ meson decay CPT symmetry is an important constraint that must be obeyed by the decay amplitude. Consistent with this requirement the final state interaction (FSI) in the decay amplitude has a important relationship with the CP asymmetry pattern in the decay of charge conjugates mesons $B^\pm$ as shown in [1]. Recent experiments of LHCb [2] bring results for...Go to contribution page
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Prof. Ronai Lisboa (UFRGN)Hadronic structure - reactions, production and decaysPosterWe present relativistic mean field (RMF) calculations in the Dirac-Hartree-Bogoliubov (DHB) formalism for hot nuclei considering not only the self-consistent temperature and density dependence of the relativistic interaction, but also the vapour phase to take in account the unbound nucleon states. The temperature dependence of the pairing gaps, nuclear deformation, radii, binding...Go to contribution page
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Mr Rodrigo Konrath (UFSC)Strong and electroweak interactions in the standard modelPosterThe Large Hadron Collider (LHC) is a good place to study Quantum Chromodynamics (QCD), which describes the hard interactions between the quarks and the gluons, i.e., the hadrons constituents. Because of the asymptotic freedom, the collisions between hadrons can be perturbatively calculated in the high energy limit of the parton collisions, if the parton distribution functions (PDFs) are...Go to contribution page
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Mr Caio Alves Garcia Prado (USP)Relativistic heavy-ion reactions - new data, analyses and modelsPosterCentral Au+Au collisions at RHIC exhibit a strong particle suppression when compared to p+p collisions. Anisotropic flow is also observed in experiments. The particle suppression is usually associated with jet quenching or energy loss of partons inside the quark-gluon-plasma (QGP) where the anisotropic flow might be due to lumps of high-density inside the medium. These fluctuations in initial...Go to contribution page
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Dr José Arbañil (ITA)Hadronic and quark matter - applications in astrophysicsPosterWe investigate the hydrostatic equilibrium configuration and the stability versus radial perturbation of electrically charged strange quark stars composed by a charged perfect fluid. We consider that the pressure of the fluid is computed from the MIT bag model equation of state and the charge distribution from a power-law function of the radial coordinate. These studies are possible through...Go to contribution page
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Mr George Yabusaki (UNICSUL)Field theoretical approaches to QCDPosterThe study of the lightest pseudoscalar mesons plays an important role in order to understand the low energy QCD,being the lightest strongly bound quark-antiquark states as well as the Goldstone bosons associated with chiral symmetry breaking. Their static and dynamical properties have also been investigated theoretically and experimentally. With respect to the description of bound...Go to contribution page
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Prof. Emerson Luna (Federal University of Rio Grande do Sul)Field theoretical approaches to QCDPosterUsing an eikonal QCD-based model in order to connect the semihard parton-level dynamics to the hadron-hadron scattering, we obtain predictions for the $pp$ and $\bar{p}p$ total cross sections, $\sigma_{tot}^{pp,\bar{p}p}$, and the ratios of the real to imaginary part of the forward scattering amplitude, $\rho^{pp,\bar{p}p}$. We consider the phenomenological implications of a class of...Go to contribution page
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Mr Glauber Sampaio dos Santos (UFRGS)Relativistic heavy-ion reactions - new data, analyses and modelsPosterIn this work we analyse the theoretical uncertainties on the predictions for the photoproduction of light vector mesons in coherent $pp$ and $AA$ collisions at the LHC energies using the color dipole approach. In particular, we present our predictions for the rapidity distribution for $\rho^0$ and $\phi$ photoproduction and perform an analysis on the uncertainties associated to the choice of...Go to contribution page
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Mr Samuel I. Santos (ITA)Field theoretical approaches to QCDPosterThe theory of classical Proca elds in curved spacetimes without torsion is presented. In particular, the wave equation for a Proca potential is deduced. A two-component spinor version of the theory is subsequently exhibited on the basis of the use of certain calculational techniques that are already available in the literature concerning the spinor formalisms of Infeld and van der...Go to contribution page
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62. Forward particle production in the CGC formalism: average transverse momentum and $\tau$ scalingProf. F. O. durães (Escola de Engenharia, Universidade Presbiteriana Mackenzie (UPM), SP, Brazil)Relativistic heavy-ion reactions - new data, analyses and modelsPosterIn this work we have used the Color Glass Condensate (CGC) formalism of forward particle production to describe the transverse momentum spectra of charged particles in proton-lead collisions at the LHC. We have also investigated the rapidity dependence of the average transverse momentum, $ < p_{T} > $, and the so called scaling variable, $ < \tau = p^{2}_{T}/Q^{2}_{s} > $, where $Q_{s}$...Go to contribution page
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Dr Vincenzo Liccardo (ITA)Hadronic and quark matter - applications in astrophysicsPosterWe will describe the LAUE project, supported by the Italian Space Agency, whose aim is to demonstrate the capability to build a focusing optics in the hard X-/soft gamma-ray domain (80–600 keV). To show the lens feasibility, the assembling of a Laue lens petal prototype with 20 m focal length is ongoing. Indeed, a feasibility study, within the LAUE project, has demonstrated that a Laue lens...Go to contribution page
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Mr Anderson Nogueira (IFT-Unesp)Field theoretical approaches to QCDPosterThe main goal of this work is to investigate the quantum interaction between scalar particles and gauge field in the context of Generalized Scalar Duffin-Kemmer-Petiau Electrodynamics (GSDKP) by quantizing the theory in a functional approach. The Hamiltonian structure is obtained with the Dirac method and the Faddeev-Senjanovic procedure is established in order to write the transition...Go to contribution page
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Mr Antonio Maurício S. N. Ferreira (UNICAMP)Field theoretical approaches to QCDPosterOne of the most widely used approach for studying the IR sector of QCD are the Schwinger-Dyson equations. This infinite system of coupled non-linear integral equations for all Green’s functions of the theory is inherently non-perturbative and can accommodate phenomena such as chiral symmetry breaking and dynamical mass generation. In practice, however, their usefulness hinges crucially on...Go to contribution page
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Willian M. Serenone (USP)Lattice QCD - methods and resultsPosterThere is interest in the study of heavy-quark systems since the decays of heavy- quarks can be used in the search of Beyond the Standard Model physics [1]. A commonly used approximation to the spin-independent interquark potential for heavy quarks is the so-called Cornell (or Coulomb plus linear) potential, which interpolates the perturbative regime and non-perturbative regime by...Go to contribution page
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Prof. Ricardo L.S. Farias (UFSM)Field theoretical approaches to QCDPosterMotivated by the fact that strong magnetic fields $B$ may be produced in noncentral heavy-ion collisions, investigations of the effects of $B$ on the phase diagram of strongly interacting matter became a subject of great interest in recent years. Results from lattice QCD simulations show that the pseudo critical temperature $T_{\rm pc}$ for chiral-symmetry restoration decreases with $B$, a...Go to contribution page
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Prof. Sergio Szpigel (UPM)Field theoretical approaches to QCDPosterEffective interactions can be obtained from a renormalization group analysis in two complementary ways. One can either explicitly integrate out higher energy modes or impose given conditions at low energies for a cutoff theory. While the first method is numerically involved, the second one can be solved almost analytically. In both cases we compare the outcoming effective interactions as...Go to contribution page
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Mr Rodrigo Alvares de Souza (eduGAIN - USP - UNIVERSIDADE DE SAO PAULO)Hadronic and quark matter - applications in astrophysicsPosterIn this work we use the statistical measures of information entropy, disequilibrium and complexity to discriminate different approaches and parametrizations for different equations of state for quark stars. We confirm the usefulness of such quantities to quantify the role of interactions in such stars. We find that within this approach, a quark matter equation of state such as SU(2) NJL...Go to contribution page
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Mr Sony Martins (UFRGS)Relativistic heavy-ion reactions - new data, analyses and modelsPosterIn this work we study the suppression of charged and neutral hadrons in ultrarelativistic heavy ion collisions, where the quark gluon plasma (QGP) is believed to be produced. Jet quenching is one of the important phenomena to study the properties of QGP. Jet energy loss in the QGP is the main explanation for jet quenching, which may suppress the number of hadrons produced while the jets...Go to contribution page
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Mr Eduardo Reis (UFSJ)Field theoretical approaches to QCDPosterThis work presents the first results of an extension of the spectral quark model which includes different flavors. The spectral quark model is an approach based on a generalization of the Lehmann representation for the quark propagator. Electromagnetic and chiral invariance are ensured with the help of gauge technique which provides particular solutions to the Ward-Takahashi identities....Go to contribution page
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Mr Marcos Kendi Yamasaki (Federal University of Santa Catarina)Relativistic heavy-ion reactions - new data, analyses and modelsPosterDrell-Yan process is a standard used in determination of parton distribution functions (PDFs) and has been measured in LHC experiments: ATLAS, CMS and LHCb. A theoretical possibility is to analyse the Drell--Yan process with a kinematical cutoff, with next-to-leading order accuracy and including Sudakov form factors. With the cutoff, a relatively small dilepton mass of 20 GeV, and forward...Go to contribution page
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Ms Clara Figueiredo (UNICAMP)Field theoretical approaches to QCDPosterThe gluon mass generation is a purely non-perturbative effect and, the natural framework to study it, in the continuum, are the Schwinger-Dyson equations (SDEs) of the theory. At the level of the SDEs the generation of such a mass is associated with the existence of infrared finite solutions for the gluon propagator. From the theoretical point of view, the dynamical gluon mass generation has...Go to contribution page
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Ms Cristiane Jahnke (USP)Relativistic heavy-ion reactions - new data, analyses and modelsPosterALICE is the LHC experiment dedicated to the study of the Quark-Gluon Plasma (QGP). The QGP is a high energy-density state of strongly-interacting matter in which partons are deconfined. This state of matter can be studied experimentally only via heavy-ion (A-A) collisions where the necessary energy density for the phase transition to the QGP can be attained. Measurements of heavy-flavour...Go to contribution page
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Mr Geanderson Carvalho (ITA)Hadronic and quark matter - applications in astrophysicsPosterThe white dwarfs represents the endpoint of stellar evolution, they are formed when a star, with masses between approximately 0.07 and 8-10 $M_\odot$, exhausts its nuclear fuel, then the process that sustain its stability will stop. After this, the internal pressure can no longer stand the gravitational force and the star collapses. In this work we investigate the structure of these stars...Go to contribution page
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Mr Rafael Palota da Silva (FURG)Strong and electroweak interactions in the standard modelPosterThe high density of gluons in the initial state of hadronic collisions at LHC implies that the probability of multiple parton interactions within one proton - proton collision increases. In particular, the probability of having two or more hard interactions in a collision is not significantly suppressed with respect to the single interaction probability. It has motivated a rapid development...Go to contribution page
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Ms Flavia Rocha (ITA)Hadronic and quark matter - applications in astrophysicsPosterIn 1918, Joseph Lense and Hans Thirring, discovered the gravitomagnetic effect when studied solutions to the Einstein field equations, using the weak field approximation, of rotation systems. They noted that when a body falls towards a massive object in rotation feel a force perpendicular to its movement. The equations that they obtained were similar to Maxwell's Equations of Electromagnetism,...Go to contribution page
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Ms Daniela Szilard Le Cocq D'Oliveira (UFRJ)Hadronic structure - reactions, production and decaysPosterThe multiple scattering theory was first developed in late 50´s by Glauber, and then applied extensively in various areas to calculate high-energy scattering amplitude of composite particles [1]. According to Glauber-Velasco model [2], the (anti-)proton is expressed as a cluster of partons, which pass through each other, and interact through the collisions of partons. It's well known since...Go to contribution page
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Mr Pablo Guillermo Allen (CNEA - CAC)Hadronic and quark matter - applications in astrophysicsPosterThe phase diagrams for cold color superconducting quark matter are obtained in the frame of SU(2)_f NJL model in the presence of magnetic field and chemical potential. Two sets of parameters and different values for the quark-quark and quark-antiquark couplings ratios were considered to study how the phase diagram is modified. The regularization procedure is discussed, showing that...Go to contribution page
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Prof. José Carlos OLIVEIRA (UFRR)Hadronic and quark matter - applications in astrophysicsPosterWith the high production of delta-resonances (~30 $\%$ of baryonic population) in the dense phase of relativistic heavy ion collisions arises a great interest in the study of the delta matter formation in neutron star structure. In previous work we determine the equation of state and the population of baryons and leptons, and also we discuss the implication of changes in the baryons-meson...Go to contribution page
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Mr Mauricio Hippert Teixeira (UFRJ)Relativistic heavy-ion reactions - new data, analyses and modelsPosterThe discovery of the chiral critical point would represent a major breakthrough in the study of the phase diagram of strong interactions and is one of the main goals of the RHIC Beam Energy Scan program. Its neighborhood is characterized by the arising of intense fluctuations of the chiral field which could, in principle, generate pronounced experimental signatures. However, experimental...Go to contribution page
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Prof. Erasmo Ferreira (UFRJ)Hadronic structure - reactions, production and decaysPosterUsing a unified analytic representation for the elastic scattering amplitudes of pp scattering for all energies, the behavior of observables at the LHC energies in the range 2.76 - 14 TeV is discussed. Similary to the case of 7 TeV data, the proposed amplitudes give excellent description of the preliminary data at 8 TeV. The energy dependence of the observables, with predictions for...Go to contribution page
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Ms Dyana Duarte (UFSM)Field theoretical approaches to QCDPosterThe motivation to study the phase structure of quantum chromodynamics (QCD) is related to investigations of the relativistic heavy ion collisions, compact stars and the early universe. Motivated by the fact that strong magnetic fields may be produced in noncentral heavy-ion collisions, investigations of the effects produced by a magnetic field in the phase diagram of strongly interacting...Go to contribution page
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Mr Jhosep Beltran (IFT-UNESP)Field theoretical approaches to QCDPosterIn this work we calculate the cross section of the scattering process of the Duffin-Kemmer-Petiau theory coupling with the Maxwell’s electromagnetic field. Specifically, we find the propagator of the free theory, the scattering amplitudes and cross sections at Born level for the Moeller and Compton scattering process of this model. For this purpose we use the analytic representation for free...Go to contribution page
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Ms Sílvia Nunes (UERJ)Hadronic and quark matter - applications in astrophysicsPosterClouds of dusts containing hydrogen in abundance are very common in the Universe. For some reason, this system can have gravitational instabilities, later generating a star that can have three possible finals: Black Holes, White Dwarfs or Neutron Stars. The latter was studied in this work, which has the main objective of defining the profile of these stars, by finding the mass x ratio curve...Go to contribution page
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Mr Ronaldo Vieira Lobato (Technological Institute of Aeronautics)Hadronic and quark matter - applications in astrophysicsPosterRecently, several highly magnetized white dwarfs have been observed with fields up to $10^9G$. Strong magnetic fields can change the structure of the star, such as mass, radius, electromagnetic radiation, pair production and also its period of rotation. In this work, we investigated the role of strong magnetic field in white dwarfs. We present the degenerated electron fermi gas to equation of...Go to contribution page
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Dr Mher Aghasyan (ITA)Hadronic structure - reactions, production and decaysPosterIn this paper we present a new technique for analysis of transverse momentum dependent parton distribution functions, based on the Bessel weighting formalism. The procedure is applied to studies of the double longitudinal spin asymmetry in semi-inclusive deep inelastic scattering using a new dedicated Monte Carlo generator which includes quark intrinsic transverse momentum within the...Go to contribution page
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Ms Jorgivan Morais Dias (USP)Hadronic structure - reactions, production and decaysPosterUsing the Hidden Local symmetry approach we study the $B\bar{B}^*$ and $B^*\bar{B}^*$ interactions for $I=1$. We show that both interactions via one light meson exchange are OZI forbidden. For that reason, we calculate the contributions for those interactions coming from the exchange of two pions, interacting and noninteracting among themselves, and also due to the heavy vector mesons...Go to contribution page
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Prof. Varese Salvador Timóteo (UNICAMP)Field theoretical approaches to QCDPosterThe NJL model is an effective model for the strong interaction, which is one of the four fundamental forces in nature [1]. Despite the simplicity of the model, it gives a very good description of some fundamental properties of the underlying theory of quantum chromodynamics, like the dynamical chiral symmetry breaking and its corresponding effective mass generation [2, 3]. Here we propose to...Go to contribution page
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Ms Ana Virginia Penacchioni (INPE)Hadronic and quark matter - applications in astrophysicsPosterIn this work we present the results of imaging simulations performed with the help of the GEANT4 package for the protoMIRAX hard X-ray balloon experiment. The instrumental background was simulated taking into account the various radiation components and their angular dependence, as well as a detailed mass model of the experiment. We modeled the meridian transits of the Crab Nebula and the...Go to contribution page
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Mr José Carlos Jiménez Apaza (UFRJ)Hadronic and quark matter - applications in astrophysicsPosterThe study of the inner structure of compact stars requires the knowledge of the equation of state (EoS) for this kind of exotic stellar matter. This show us how the balance between gravitational attraction and microscopic interaction by means of the other fundamental interactions gives rise to the state of equilibrium in which they are observed currently. In the case of quark or hybrid...Go to contribution page
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Prof. Carlos Antonio da Rocha (São Judas Tadeu University)Hadronic structure - reactions, production and decaysPosterTheoretical efforts to describe the pion production at threshold have been made since the new data [1], [2] have shown a disagreement with the description of the earlier work due to Koltun & Reitan (KR) [3]. In this pioneer work of KR, the interaction is split into two parts: one describes the correlations between the nucleons before and after production of a pion and the other is responsible...Go to contribution page
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Prof. Fabio L. Braghin (UFG)Field theoretical approaches to QCDPosterHigher order quark effective interactions, correcting the usual NJL interaction, are derived by considering polarization effects [1,2,3]. A set of auxiliary fields is introduced one of which yields the scalar chiral quark-antiquark condensate. Fluctuations are shown to provide effective quark couplings. The leading fourth order coupling provides a correction the Nambu-Jona-Lasinio model. The...Go to contribution page
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Mr Paulo V. R. G. Silva (UNICAMP)Hadronic structure - reactions, production and decaysPosterWe present an updated empirical analysis on the ratio of the elastic (integrated) to the total cross section in the c.m. energy interval from 5 GeV to 8 TeV. As in a previous work, we use a suitable analytical parametrization for that ratio (depending on only four free fit parameters) and investigate three asymptotic scenarios: either the black disk limit or scenarios above or below that...Go to contribution page
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Ms María Florencia Izzo Villafañe (UNLP)Field theoretical approaches to QCDPosterWe analyze meson properties within an SU(2) chiral quark model that includes nonlocal four-fermion couplings. In this work we concentrate in the description of basic features of nonstrange vector and axial-vector mesons, considering nonlocal form factors that are based in lattice QCD results for effective quark propagators.Go to contribution page
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Mr Clayton mello (ITA)Field theoretical approaches to QCDPosterIn this work, we are studying the usual formalism of quantum field theory of quantum field theory in Light-Front formalism, with the goal of applying the properties of quantum chromodynamics (QCD) in the scheme nonperturbative. The electromagnetic structure of the pion , wich is a pseudoscalar meson composed of a quark-antiquark bound state with total spin zero, is our first object...Go to contribution page
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