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Related papers: The bottomonium melting from screening correlators…

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We present here a comprehensive model to describe the bottomonium suppression data obtained from the CERN Large Hadron Collider (LHC) at center-of-mass energy of $\sqrt{s_{NN}}=2.76$ TeV. We employ a quasiparticle model (QPM) equation of…

High Energy Physics - Phenomenology · Physics 2015-03-04 S. Ganesh , M. Mishra

We study the region of the QCD phase transition using 2+1 flavors of domain wall fermions (DWF) and a $16^3 \times 8$ lattice volume with a fifth dimension of $L_s = 32$. The disconnected light quark chiral susceptibility, quark number…

High Energy Physics - Lattice · Physics 2010-04-14 M. Cheng , N. H. Christ , P. Hegde , F. Karsch , Min Li , M. F. Lin , R. D. Mawhinney , D. Renfrew , P. Vranas

The HPQCD collaboration has used radiatively-improved NonRelativistic QCD (NRQCD) for $b$ quarks in bottomonium to determine the decay rate of $\Upsilon$ and $\Upsilon^\prime$ mesons to leptons in lattice QCD. Using time-moments of vector…

High Energy Physics - Lattice · Physics 2015-11-06 Brian Colquhoun , Christine T. H. Davies , Rachel J. Dowdall , Jonna Koponen , G. Peter Lepage , Andrew T. Lytle

We study the role of the lattice artifacts associated with the Coulomb binding effects in the analysis of the heavy quarkonium within lattice NRQCD. We find that a "naive" perturbative matching generates spurious linear Coulomb artifacts,…

High Energy Physics - Lattice · Physics 2017-09-08 Tao Liu , Alexander A. Penin , Ahmed Rayyan

Bottomonia play a crucial role in our understanding of the quark gluon plasma. We present lattice non-relativistic QCD calculations of bottomonia at temperatures in the range $T \in [47, 380]$ MeV using the Fastsum Generation 2L anisotropic…

We present continuum extrapolated lattice QCD results for up to fourth-order diagonal and off-diagonal quark number susceptibilities in the high temperature region of 300-700 MeV. Lattice QCD calculations are performed using 2+1 flavors of…

High Energy Physics - Lattice · Physics 2015-11-04 H. -T. Ding , Swagato Mukherjee , H. Ohno , P. Petreczky , H. -P. Schadler

To study the in-medium modification of quarkonium properties, charmonium correlators at $140.4 (\beta =6.664) \le T \le 221 (\beta = 7.280)$ (MeV) are calculated using the NRQCD formalism on $48^3 \times 12$ gauge configurations with…

High Energy Physics - Lattice · Physics 2015-11-16 Seyong Kim , Peter Petreczky , Alexander Rothkopf

We investigate chiral phase transitions and the screening masses, pole masses, and thermal widths of neutral pion meson with finite temperature $T$ and magnetic field $B$ in a lattice-improved AdS/QCD model, which is constructed by fitting…

High Energy Physics - Theory · Physics 2024-02-12 Nanxiang Wen , Xuanmin Cao , Jingyi Chao , Hui Liu

The FASTSUM Collaboration has developed a comprehensive research programme in thermal lattice QCD using 2+1 flavour ensembles. We review our recent hadron spectrum analyses of open charm mesons and charm baryons at non-zero temperature. We…

Thermal screening masses related to the conserved vector current are determined for the case that the current carries a non-zero Matsubara frequency, both in a weak-coupling approach and through lattice QCD. We point out that such screening…

High Energy Physics - Phenomenology · Physics 2015-06-19 B. B. Brandt , A. Francis , M. Laine , H. B. Meyer

We revise the analysis of the bottomonium hyperfine splitting within the lattice nonrelativistic QCD. The Wilson coefficients of the radiatively improved lattice action are evaluated by a semianalytic approach based on the asymptotic…

High Energy Physics - Phenomenology · Physics 2015-09-23 M. Baker , A. A. Penin , D. Seidel , N. Zerf

We present a lattice QCD determination of masses of the conjectured H-dibaryon $m_H$ at nine different temperatures $T/T_c =0.24, 0.63, 0.76, 0.84, 0.95, 1.09, 1.27, 1.52, 1.90$. In the meantime, the masses of baryon $N$, $\Sigma$, $\Xi$…

High Energy Physics - Lattice · Physics 2024-04-18 Liang-Kai Wu , Han Tang , Xin-Yang Wang , Ning Li

We study the thermal transition of QCD with two degenerate light flavours by lattice simulations using $\mathcal{O}(a)$-improved Wilson quarks. Particular emphasis lies on the pattern of chiral symmetry restoration, which we probe via the…

High Energy Physics - Lattice · Physics 2019-04-05 Bastian B. Brandt , Marco Cè , Anthony Francis , Tim Harris , Harvey B. Meyer , Owe Philipsen , Hartmut Wittig

We employ the Langevin equation and Wigner function to describe the bottom equark dynamical evolutions and their formation into a bound state in the expanding Quark Gluon Plasma (QGP). The additional suppressions from parton inelastic…

Nuclear Theory · Physics 2017-09-08 Baoyi Chen , Jiaxing Zhao

We describe the bottomonium spectrum obtained on the MILC configurations which incorporate 2+1 flavors of dynamical quarks. We compare to quenched and 2 flavor results also on MILC configurations. We show that the lattice spacing…

High Energy Physics - Lattice · Physics 2015-06-25 A. Gray , C. Davies , M. Alford , E. Follana , J. Hein , G. P. Lepage , Q. Mason , M. Nobes , J. Shigemitsu , H. Trottier , M. Wingate

Charmonium dissociation temperatures are studied in a quenched anisotropic lattice QCD with standard plaquette gauge action and O(a) improved Wilson fermion action. Simulations are carried out at temperatures in the range 0.88T_c to 2.3T_c.…

High Energy Physics - Lattice · Physics 2010-01-21 Hiroshi Ohno , Takashi Umeda , Kazuyuki Kanaya

We review recent heavy quarkonium measurements in $pp$, $p\mathrm{Pb}$, and $\mathrm{PbPb}$ collisions at the LHC by the ALICE, ATLAS, CMS, and LHCb collaborations using Run 2 and early Run 3 data. Production studies include present…

High Energy Physics - Experiment · Physics 2025-09-15 Yiyang Zhao , Jinfeng Liu , Xing Cheng , Chi Wang , Zhen Hu

Dynamical 2+1 flavour lattice QCD is used to calculate the splittings between the masses of mesons and baryons containing a single static heavy quark and domain-wall light and strange quarks. Our calculations are based on the dynamical…

High Energy Physics - Lattice · Physics 2010-04-15 William Detmold , C. -J. David Lin , Matthew Wingate

The non-perturbative nature of QCD at hadronic scales implied the development of phenomenological approaches such as quark models or, more recently, computer-based calculations using Lattice QCD. However, the unique properties of heavy…

High Energy Physics - Phenomenology · Physics 2017-11-29 Pablo G. Ortega , Vicent Mateu

We compute flavor non-singlet meson screening masses in the chiral limit of QCD with $N_f=3$ quarks. The calculation is carried out at 12 temperatures from $T\approx 1$ GeV up to the electroweak scale. For each temperature we simulated…

High Energy Physics - Lattice · Physics 2021-12-15 Davide Laudicina , Mattia Dalla Brida , Leonardo Giusti , Tim Harris , Michele Pepe
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