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Related papers: Charmonium properties in the quark-gluon plasma

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We compute charmonium spectral functions in 2-flavor QCD on anisotropic lattices using the maximum entropy method. Our results suggest that the S-waves (J/psi and eta_c) survive up to temperatures close to 2Tc, while the P-waves (chi_c0 and…

High Energy Physics - Lattice · Physics 2008-11-26 Gert Aarts , Chris Allton , Mehmet Bugrahan Oktay , Mike Peardon , Jon-Ivar Skullerud

We compute charmonium spectral functions in 2-flavour QCD using the maximum entropy method and anisotropic lattices. We find that the S-waves (J/psi and eta_c) survive up to temperatures close to 2T_c, while the P-waves (chi_c0 and chi_c1)…

High Energy Physics - Lattice · Physics 2008-11-26 G. Aarts , C. R. Allton , R. Morrin , A. O. Cais , M. B. Oktay , M. J. Peardon , J. I. Skullerud

We report first results for spectral functions of charmonium in 2-flavour QCD. The spectral functions are determined from vector and pseudoscalar correlators on a dynamical, anisotropic lattice. J/psi and eta_c are found to survive well…

High Energy Physics - Lattice · Physics 2011-03-23 Gert Aarts , Chris Allton , Richie Morrin , Alan O Cais , Mehmet Bugrahan Oktay , Mike Peardon , Jon-Ivar Skullerud

Charmonium systems in two-flavour QCD at non-zero temperature are studied at, and above the deconfining transition. Using anisotropic lattices the MEM approach is used to extract spectral functions for these channels. By carefully varying…

High Energy Physics - Lattice · Physics 2011-03-23 G. Aarts , C. R. Allton , R. Morrin , A. P. O Cais , M. B. Oktay , M. J. Peardon , J. I. Skullerud

We study the properties of charmonium states at finite temperature in quenched QCD on large and fine isotropic lattices. We perform a detailed analysis of charmonium correlation and spectral functions both below and above $T_c$. Our…

High Energy Physics - Lattice · Physics 2012-08-01 H. -T. Ding , A. Francis , O. Kaczmarek , F. Karsch , H. Satz , W. Soeldner

We study charmoinum correlators and spectral functions at finite temperature within the quenched approximation using isotropic lattices with lattice spacing a^-1=4.86 GeV and 9.72 GeV. Although we observe some medium modifications of the…

High Energy Physics - Lattice · Physics 2009-11-10 P. Petreczky , S. Datta , F. Karsch , I. Wetzorke

We study the properties of charmonium states at finite temperature in quenched QCD on isotropic lattices. We measured charmonium correlators using non-perturbatively $\cO(a)$ improved clover fermions on fine ($a=0.01$ fm) lattices with a…

High Energy Physics - Lattice · Physics 2011-03-31 H. -T. Ding , A. Francis , O. Kaczmarek , F. Karsch , H. Satz , W. Soeldner

We study the properties of charmonium states at finite temperature in quenched lattice QCD on large and fine isotropic lattices. We perform a detailed analysis of charmonium correlation and spectral functions both below and above Tc. Our…

High Energy Physics - Phenomenology · Physics 2012-10-02 H. -T. Ding , A. Francis , O. Kaczmarek , F. Karsch , H. Satz , W. Söldner

We study charmonium correlators and spectral functions at zero and finite temperature using anisotropic lattices at several different lattice spacings. We find evidence for survival of 1S charmonia states at leas till $1.5T_c$ and…

High Energy Physics - Lattice · Physics 2009-04-14 A. Jakovac , P. Petreczky , Konstantin Petrov , A. Velytsky

We compute correlators and spectral functions for J/psi and eta_c mesons at nonzero momentum on anisotropic lattices with Nf=2. We find no evidence of significant momentum dependence at the current level of precision. In the pseudoscalar…

High Energy Physics - Lattice · Physics 2010-05-10 M. B. Oktay , J. I. Skullerud

We present a study of charmonia in hot gluonic plasma, for temperatures upto three times the deconfinement transition temperature Tc. q \bar{q} systems with quark masses close to the charm mass and different spin-parity quantum numbers were…

High Energy Physics - Lattice · Physics 2009-11-10 Saumen Datta , Frithjof Karsch , Peter Petreczky , Ines Wetzorke

We build a "bottom-up" holographic model of charmonium by matching the essential spectral data. We argue that this data must include not only the masses but also the decay constants of the J/psi and psi' mesons. Relative to the "soft-wall"…

High Energy Physics - Phenomenology · Physics 2011-02-22 Hovhannes R. Grigoryan , Paul M. Hohler , Mikhail A. Stephanov

We study charmonium correlators and spectral functions in quenched QCD, using Clover improved Wilson fermions on very fine (0.015 fm) isotropic lattices at 0.75 Tc and 1.5 Tc. We use a new approach to distinguish the zero mode contribution…

High Energy Physics - Lattice · Physics 2010-11-05 H. -T. Ding , O. Kaczmarek , F. Karsch , H. Satz , W. Soeldner

We report on a study of charmonium at high temperature in 2-flavour QCD. This is the first such study with dynamical fermions. Using an improved anisotropic lattice action, spectral functions are extracted from correlators in the vector and…

High Energy Physics - Lattice · Physics 2011-03-23 R. Morrin , A. P. O Cais , M. B. Oktay , M. J. Peardon , J. I. Skullerud , G. Aarts , C. R. Allton

Finite temperature charmonium spectral functions in the pseudoscalar and vector channels are studied in lattice QCD with 2+1 flavours of dynamical Wilson quarks, on fine isotropic lattices (with a lattice spacing of 0.057 fm), with a…

We study the charmonium properties at finite temperature using quenched lattice QCD simulations. Although a simple potential model analysis indicates no bound state at $T>1.05T_c$, our analyses of the spatial correlation between quark and…

High Energy Physics - Lattice · Physics 2009-11-07 Takashi Umeda , Hideo Matsufuru , Osamu Miyamura , Kouji Nomura

Dissociation temperatures of J/\psi, \psi', and \chi_c states play key roles in the sequential J/\psi suppression scenario for high energy heavy ion collisions. We report on a study of charmonium dissociation temperatures in quenched…

High Energy Physics - Lattice · Physics 2019-08-14 T. Umeda , H. Ohno , K. Kanaya

We study charmonium properties below and above $T_c$ up to 1.8$T_c$, on quenched anisotropic lattices. Information of the spectral functions is extracted using the maximum entropy method and the constrained curve fitting. We also calculate…

High Energy Physics - Lattice · Physics 2009-11-11 Takashi Umeda , Hideo Matsufuru

We attempt a unified treatment of heavy quarkonia and heavy-quark diffusion in the Quark-Gluon Plasma. Our approach is based on finite-temperature T-matrices with interaction potentials estimated from the heavy-quark internal energy…

High Energy Physics - Phenomenology · Physics 2008-06-23 R. Rapp , D. Cabrera , V. Greco , M. Mannarelli , H. van Hees

Finite temperature charmonium spectral functions in the pseudoscalar(PS) and vector(V) channels are studied in lattice QCD with 2+1 flavours of dynamical Wilson quarks, on fine isotropic lattices (with a lattice spacing of 0.057fm), with a…

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