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On the basis of the closed-time path formalism of non-equilibrium quantum field theory, we derive the real-time quantum dynamics of heavy quark systems. Even though our primary goal is the description of heavy quarkonia, our method allows a…

高能物理 - 唯象学 · 物理学 2015-06-11 Yukinao Akamatsu

We use the open quantum system formalism to study the dynamical in-medium evolution of quarkonium. The system of quarkonium is described by potential non-relativistic QCD while the environment is a weakly coupled quark-gluon plasma in local…

高能物理 - 唯象学 · 物理学 2019-06-04 Xiaojun Yao , Thomas Mehen

A thermodynamic T-matrix approach for elastic 2-body interactions is employed to calculate spectral functions of open and hidden heavy-quark systems in the Quark-Gluon Plasma. This enables the evaluation of quarkonium bound-state properties…

高能物理 - 唯象学 · 物理学 2014-11-21 F. Riek , R. Rapp

Heavy quarkonium is one of the most investigated probes of the medium produced in heavy-ion collisions. In the past few years progress has been made in the description of its in-medium dynamics from QCD. Non-relativistic EFTs in particular…

高能物理 - 唯象学 · 物理学 2013-04-25 Jacopo Ghiglieri

Search of a proper and realistic equations of state (EOS) for strongly interacting matter used in the study of QCD phase diagram still appears as a challenging task. Recently, we have constructed a hybrid model description for the quark…

高能物理 - 唯象学 · 物理学 2018-04-03 P. K. Srivastava , C. P. Singh

We calculate the Equation of State of a quark system interacting through a phenomenological potential: the Richardson's potential, at finite baryon density and zero temperature. In particular we study three different cases with different…

高能物理 - 唯象学 · 物理学 2009-11-10 S. Terranova , A. Bonasera

The quark-gluon plasma (QGP) is an exotic phase of matter, composed of deconfined quarks and gluons and is briefly created in heavy-ion collisions (HIC) at the LHC and at the RHIC. High-energy, self-collimated structures of final-state…

高能物理 - 唯象学 · 物理学 2023-11-10 Eamonn Weitz

We study the evolution of heavy quarkonium states with temperature in a Quark-Gluon Plasma by evaluating an in-medium Q\bar{Q} T-matrix within a reduced Bethe-Salpeter equation in S- and P-wave channels. The interaction kernel is extracted…

高能物理 - 唯象学 · 物理学 2008-11-26 D. Cabrera , R. Rapp

We extend a previously constructed T-matrix approach to the quark-gluon plasma (QGP) to include the effects of spin-dependent interactions between partons. Following earlier work within the relativistic quark model, the spin-dependent…

高能物理 - 唯象学 · 物理学 2023-08-10 Zhanduo Tang , Ralf Rapp

Quarkonium suppression is one of the most investigated probes of the medium produced in heavy-ion collisions. In this thesis we extend the well-established and successful zero temperature framework of Non-Relativistic (NR) Effective Field…

高能物理 - 唯象学 · 物理学 2012-01-16 Jacopo Ghiglieri

Using a unified hadron-quark effective model for the QCD equation of state, this paper studies the phase structure of strongly interacting matter in a wide range of temperature and baryonchemical potential. At small potentials the model…

高能物理 - 唯象学 · 物理学 2013-08-22 Philip Rau , Jan Steinheimer , Stefan Schramm

We derive equations of motion for the reduced density matrix of a heavy quarkonium in contact with a quark-gluon plasma in thermal equilibrium. These equations allow in particular a proper treatment of the regime when the temperature of the…

高能物理 - 唯象学 · 物理学 2018-10-17 Jean-Paul Blaizot , Miguel Angel Escobedo

The interactions of charm and bottom quarks in a Quark-Gluon Plasma (QGP) are evaluated using a thermodynamic 2-body T-matrix. We specifically focus on heavy-quark (HQ) interactions with thermal gluons with an input potential motivated by…

高能物理 - 唯象学 · 物理学 2015-06-05 Kyle Huggins , Ralf Rapp

Heavy quarks have been instrumental for progress in our exploration of strong interactions. Quarkonium in particular, a heavy quark-antiquark nonrelativistic bound state, has been at the root of several revolutions. Quarkonium is endowed…

高能物理 - 唯象学 · 物理学 2022-07-05 Nora Brambilla

A strongly coupled quark-gluon plasma (QGP) of heavy constituent quasi-particles is studied by a path-integral Monte-Carlo method. This approach is a quantum generalization of the model developed by Gelman, Shuryak and Zahed. It is shown…

核理论 · 物理学 2015-03-17 V. S. Filinov , Yu. B. Ivanov , M. Bonitz , P. R. Levashov , V. E. Fortov

We assess transport properties of heavy quarks in the Quark-Gluon Plasma (QGP) using static heavy-quark (HQ) potentials from lattice-QCD calculations in a Brueckner many-body T-matrix approach to evaluate elastic heavy-quark-light-quark…

高能物理 - 唯象学 · 物理学 2009-07-22 H. van Hees , M. Mannarelli , Vincenzo Greco , Ralf Rapp

The equation of state of the quark gluon plasma is a key ingredient of heavy ion phenomenology. In addition to the traditional Taylor method, several novel approximation schemes have been proposed with the aim of calculating it at finite…

The quark-gluon plasma (QGP) can be explored in relativistic heavy ion collisions by the jet quenching signature, i.e. by the energy loss of a high energy quark or gluon traversing the plasma. We introduce a novel QCD evolution formalism in…

高能物理 - 唯象学 · 物理学 2010-03-25 S. Domdey , G. Ingelman , H. J. Pirner , J. Rathsman , J. Stachel , K. Zapp

Theoretical studies of quarkonia can elucidate some of the important properties of the quark--gluon plasma, the state of matter realised when the temperature exceeds 150 MeV, currently probed by heavy-ion collisions experiments at BNL and…

高能物理 - 格点 · 物理学 2015-06-19 G. Aarts , C. Allton , A. Kelly , J. -I. Skullerud , S. Kim , T. Harris , S. M. Ryan , M. P. Lombardo

Ab-initio simulations of multiple heavy quarks propagating in a Quark-Gluon Plasma are computationally difficult to perform due to the large dimension of the space of density matrices. This work develops machine learning algorithms to…

高能物理 - 唯象学 · 物理学 2024-10-22 Joshua Lin , Di Luo , Xiaojun Yao , Phiala E. Shanahan