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Prof. Elsen Veli Veliev (Kocaeli University)30/08/2016, 19:40Poster session
- Introduction
- Thermal Sum Rule for Charmonium and Charmed Beauty Vertex
- Numerical Analysis and Discussion
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Mr Fernando Serna (Institute for Theoretical physics of São Paulo Statate University)30/08/2016, 19:40Poster session
Hadron physics
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Sayantan Sharma (BNL), Soeren Schlichting (Brookhaven National Lab)30/08/2016, 19:40Poster session
We present a first-principles study of anomaly induced transport phenomena by performing real- time lattice simulations with dynamical fermions coupled simultaneously to non-Abelian SU(Nc) and Abelian U(1) gauge fields. We investigate the behavior of vector and axial currents
during a sphaleron transition in the presence of an external magnetic field, and demonstrate how the interplay of the... -
Mario Mitter (Univ. Heidelberg)30/08/2016, 19:40Poster session
Model parameter free investigations of Yang-Mills theory and quenched QCD in the vacuum are presented as a necessary prerequisitve for corresponding investigations of the QCD phase structure with the functional renormalisation group equation. Preliminary results for Yang-Mills theory at finite temperature are discussed. Finally, a phenomenological application of the vacuum results to the...
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Mr Shahlaei Amir (Plasma Physics Research Center, Science and Research Branch, Azad University), Dr Shahnoosh Rafibakhsh (Plasma Physics Research Center, Science and Research Branch, Azad University)30/08/2016, 19:40Poster session
We calculate the potential between static quarks in the fundamental representation of the F4 exceptional gauge group using domain structures of the thick center vortex model. As non-trivial center elements are absent, the asymptotic string tension is lost while an intermediate linear potential is observed. SU(3) is a subgroup of F4. Investigating the decomposition of the 26 dimensional...
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Dr Lukasz Bibrzycki (Pedagogical University of Cracow)30/08/2016, 19:40Poster session
Electromagnetic processes are known to be a good source of information on the meson inner structure. Analysis of these processes turned out to be particularly fruitful in case of scalar mesons which emerge eg. in the phi(1020) radiative decays in both \pi\pi and \pi\eta channels.
Photoproduction of isoscalar and isovector scalar resonances can be treated as a complementary source of... -
Rafael Delgado (Universidad Complutense de Madrid (UCM))30/08/2016, 19:40Poster session
We report on the coupling of an external $t\bar t$ state to a strongly interacting EWSBS. We exploit perturbation theory in the small $M_t/\sqrt{s}$ quantity, whereas the EWSBS is taken as strongly interacting. We use a modified version of the IAM unitarization procedure to model such a strongly interacting regime. The scattering matrix elements $V_L V_L \to V_L V_L$, $V_L V_L \to hh$, $hh\to...
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Boris Tomasik (Univerzita Mateja Bela (SK))30/08/2016, 19:40Poster session
We present novel method for the organisation of events. The method is based on comparing event-by-event histograms of a chosen quantity $Q$ that is measured for each particle in every event. The events are organised in such a way that those with similar shape of the $Q$-histograms end-up placed close to each other.
We apply the method on histograms of azimuthal angle of the produced hadrons... -
Dr Daisuke Satow30/08/2016, 19:40Poster session
We derive three exact sum rules for the spectral function of the electromagnetic current channel at finite temperature, by using operator product expansion and hydrodynamics, focusing on zero spatial momentum case. We also discuss the possibility to use these sum rules to constrain and improve the functional form of the spectral function assumed in the lattice QCD analysis, and to evaluate the...
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Boris Tomasik (Univerzita Mateja Bela (SK))30/08/2016, 19:40Poster session
Minijets and jets are produced in large numbers in nuclear collisions at TeV energies, so that there are many of them in a single fireball. They deposit non-negligible amount of momentum and energy into the hydrodynamically expanding bulk and cause anisotropies of the expansion. Moreover, due to their multiple production in a single event the resulting anisotropies are correlated with the...
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Fabio Siringo (Università degli Studi di Catania)30/08/2016, 19:40Poster session
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Wolfgang LUCHA30/08/2016, 19:40Poster session
Within QCD, the light pseudoscalar mesons assume a twofold role: they may be described as quark–antiquark bound states but also have to be interpreted as the (almost) massless (pseudo) Goldstone bosons of the spontaneously broken chiral symmetries of QCD. The application of suitably adapted inversion techniques enables us to construct exact bound-state solutions to the Bethe–Salpeter equation...
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Hideo Suganuma (Kyoto University)30/08/2016, 19:40Poster session
We investigate the H-dibaryon (uuddss) in holographic QCD [1, 2].
Holographic QCD is derived from a QCD-equivalent D-brane system
in the superstring theory via the gauge/gravity correspondence.
In holographic QCD, all baryons appear as topological chiral solitons
of Nambu-Goldstone bosons and (axial) vector mesons [1, 2].
In this framework, the H-dibaryon can be described as an... -
Enrique Ruiz Arriola (Universidad de Granada)30/08/2016, 19:40Poster session
The presentation is based on these works
1) Heavy Quark Entropy shift: From the Hadron Resonance Gas to Power Corrections
By E. Megias, E. Ruiz Arriola, L.L. Salcedo.
arXiv:1605.04453 [hep-ph].2) Heavy quark-antiquark free energy and thermodynamics of string-hadron avoided crossings
By E. Megias, E. Ruiz Arriola, L.L. Salcedo.
arXiv:1603.04642 [hep-ph].3) Heavy ${\bar Q}Q$ free...
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Alisa Katanaeva (Saint Petersburg State University)30/08/2016, 19:40Poster session
Holographic QCD is based on the AdS/CFT duality and offers new nonperturbative approaches to understand the strongly interacting regime of gauge theories. One of the primary questions in Quantum Chromodynamics is the clarification of the whole phase diagram of matter out of quarks and gluons as a function of temperature, baryon or quark chemical potential, and other external parameters.
We...
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351. Irregularities at chemical freeze-out of hadrons as an evidence of quark-gluon plasma formationVioletta Sagun (Bogolyubov Institute for Theoretical Physics)30/08/2016, 19:40Poster session
Based on the new fit of hadron yield ratios within the multicomponent hadron resonance gas model we have found several remarkable irregularities at chemical freeze-out. In particular, 121 hadron multiplicity ratios measured in the nucleus-nucleus collisions at AGS, SPS and RHIC energies were successfully described within the new formulation of HRGM with $\chi^2/dof \simeq 63.978/65 \simeq...
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Valeria Pagura (Universidad de Valencia - CSIC)30/08/2016, 19:40Poster session
The magnetic susceptibility of the QCD vacuum is analyzed in the framework of a nonlocal
SU(3) Polyakov-Nambu-Jona-Lasinio model. We estimate the values of the u and s-quark tensor coefficients and magnetic susceptibilities and then we extend the analysis to finite temperature systems, comparing numerical results to those obtained in other theoretical approaches and in lattice QCD calculations. -
Despoina Sampsonidou (Aristotle University of Thessaloníki (GR))30/08/2016, 19:40Poster session
The ATLAS reconstruction algorithm, in Run-II, has been improved and extended compared to the one used in Run-I. In this presentation, we will discuss the precise measurement of the muon reconstruction efficiency measured in pp collisions at sqrt(s)= 13 TeV in 2015 and 2016 using samples of J/ψ→μμ and Z→μμ decays. The reconstruction efficiency, transverse momentum resolution and momentum...
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Mr Giorgos Atreidis (PhD student Aristotle University of Thessaloniki)30/08/2016, 19:40Poster session
The lateral distribution of an atmospheric shower depends on the characteristics of the high energy interactions and the type of the primary particle. The influence of the primary particle in the secondary development of the shower into the atmosphere, is studied by analyzing the lateral distribution of electron and muon showers having as primary particle, proton, photon or iron nucleus.
This... -
Marios Costa (University of Cyprus)30/08/2016, 19:40Poster session
Super QCD Lagrangian and Feynman rules; self energies of quark, gluon, squark and gluino fields; 2-pt Green's functions of quark bilinears; lattice perturbation theory.
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Joao Moreira (Center for Physics of the University of Coimbra)30/08/2016, 19:40Poster session
A recently developed extension of the Nambu--Jona-Lasinio model includes all the explicit chiral symmetry breaking interactions which contribute
at the same order in the large 1/Nc counting as the UA(1) ’t Hooft flavor determinant [1]. In addition to the usual 4, 6, 8 fermion vertices this
generalization includes the relevant interaction terms proportional to the current quark masses. It... -
Elisa Meninno (Universita e INFN, Salerno (IT))30/08/2016, 19:40Poster session
A Large Ion Collider Experiment (ALICE) was designed for the study of the strongly interacting medium created in heavy-ion collisions at LHC energies, the Quark-Gluon Plasma. Heavy quarks (charm and beauty) are very powerful probes to study this state of matter, since they are produced in the early stages of heavy-ion collisions and they traverse the QCD medium interacting with its...
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Francesca Aceti (IFIC - Universidad de Valencia)30/08/2016, 19:40Poster session
We study here the interaction of DDbar* in the isospin I=1 channel in light of recent theoretical advances that allow us to combine elements of the local hidden gauge approach with heavy quark spin symmetry. We find that the exchange of light qqbar is Okubo-Zweig-Iizuka (OZI) suppressed and thus we concentrate on the exchange of heavy vectors and of two pion exchange. The latter is found to be...
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Dr Rafel Escribano (Universitat Autònoma de Barcelona)30/08/2016, 19:40Poster session
We analyse the second-class current decays $\tau^{-}\to\pi^{-}\eta^{(\prime)}\nu_{\tau}$
in the framework of Chiral Perturbation Theory with Resonances.
Taking into account $\pi^{0}$-$\eta$-$\eta^{\prime}$ mixing,
the $\pi^{-}\eta^{(\prime)}$ vector form factor is extracted, in a model-independent way,
using existing data on the $\pi^{-}\pi^{0}$ one.
For the participant scalar form factor,
we... -
John Gómez30/08/2016, 19:40Poster session
Fixed points in QCD can appear when the number of quark flavors ($N_f$) is increased above a certain critical value as proposed by Banks and Zaks (BZ). There is also the possibility that QCD possess an effective charge indicating an infrared frozen coupling constant. In particular, an infrared frozen coupling associated to dynamical gluon mass generation (DGM) does lead to a fixed point even...
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Hiroki Nishihara (Nagoya University)30/08/2016, 19:40Poster session
Introduction
Chiral model with $\mbox{SU}(4)\times\mbox{U}(1)$ HLS
Relations obtained from the emergent symmetry
Numerical analysis
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Wolfgang Lucha (Austrian Academy of Sciences)30/08/2016, 19:40Poster session
Within a relativistic dispersion approach based on the constituent-quark model, we extract the strong couplings of three mesons among which there is, at least, one charmonium from the residues of resonance poles in adequate transition form factors for timelike momentum transfer. Confrontation of our results with corresponding earlier ones by QCD sum rules reveals significant disagreement...
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Francesca Aceti (IFIC - Universidad de Valencia)30/08/2016, 19:40Poster session
We use the local hidden gauge approach in order to study the BBbar and BBbar* interactions for isospin I=1. We show that both interactions via one light meson exchange are not allowed by the Okubo-Zweig-Iizuka rule and, for that reason, we calculate the contributions due to the exchange of two pions, interacting and noninteracting among themselves, and also due to the heavy vector mesons....
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Dr Takuya Saito (Kochi University)30/08/2016, 19:40Poster session
We study the physics of the strongly-correlated gluon
plasma with color-center vortices in the lattice SU(2)
simulations.
We observe in the deconfinement phase
how the equation of state, gluon propagators and
transport correlators depend on degrees of freedom of
lattice center vortices in the temporal and spatial
directions.
It is found that the magnetic sector of gluons
is more... -
Dr Vladimir Kovalenko (St Petersburg State University (RU))30/08/2016, 19:40Poster session
A new approach to study the mass spectrum of double heavy baryons containing strange and
charmed quarks is proposed. It is based on the separation of variables in the Schrödinger equation in the prolate spheroidal coordinates. Two non-relativistic potential models are considered.In the first model, the interaction potential of the quarks is the sum of the Coulomb and non-spherically...
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Romain Contant (University of Graz)30/08/2016, 19:40Poster session
QCD-like theories provide testing grounds for truncations of functional equations at non-zero density, since comparisons with lattice results are possible due to the absence of the sign problem. As a first step towards such a comparison, we determine for various theories the chiral and confinement/deconfinement transitions from the quark propagator Dyson-Schwinger equation at zero chemical...
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Di-Lun Yang (RIKEN)30/08/2016, 19:40Poster session
We investigate the magnetohydrodynamics in the presence of an external magnetic field following the power-law decay in proper time and having spatial inhomogeneity characterized by a Gaussian distribution in one of transverse coordinates under the Bjorken expansion. The leading-order solution is obtained in the weak-field approximation, where both energy density and fluid velocity are...
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Fabio Siringo (Università degli Studi di Catania)30/08/2016, 19:40Poster session
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Igor Bogolubsky (Joint Institute for Nuclear Research)30/08/2016, 19:40Poster session
We make simulations of the zero-momentum $SU(2)$ Landau gauge gluon correlator both for periodic and zero-field boundary conditions at varying $\beta$ and $L_t * L_s^3$ lattice sizes.
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