scholarly journals Scalar glueball mass reduction at finite temperature in SU(3) anisotropic lattice QCD

2002 ◽  
Vol 66 (1) ◽  
Author(s):  
Noriyoshi Ishii ◽  
Hideo Suganuma ◽  
Hideo Matsufuru
Keyword(s):  
Lattice Qcd ◽  
Finite Temperature ◽  
Mass Reduction ◽  
Scalar Glueball ◽  
Glueball Mass ◽  
Anisotropic Lattice

Calculations of Glueball Wavefunction in Lattice QCD

2007 ◽  
Vol 22 (07n10) ◽  
pp. 599-605 ◽  
Author(s):  
Dart-yin Soh ◽  
Jun Liu ◽  
Xiang-Qian Luo
Keyword(s):  
Lattice Qcd ◽  
Lattice Gauge ◽  
Glueball Mass ◽  
Anisotropic Lattice

We calculate the glueball 〈gg〉 wavefunction and mass in SU (3) Lattice gauge with improved gauge actions on the anisotropic lattice. All simulations are performed on the cluster of our lab. We have measured the scalar and tensor glueball wavefunction. At the same time, we have briefly calculated the glueball mass as for a consistent check.

scholarly journals SCALAR AND PSEUDOSCALAR GLUEBALLS

2009 ◽  
Vol 24 (18n19) ◽  
pp. 3392-3402 ◽  
Author(s):  
HAI-YANG CHENG
Keyword(s):  
Lattice Qcd ◽  
Primary Component ◽  
Scalar Glueball ◽  
Scalar Mesons ◽  
Glueball Mass ◽  
Transition Matrix Elements ◽  
Mixing Matrix ◽  
Large Production ◽  
Scalar Sector ◽  
Anomalous Ward Identity

We employ two simple and robust results to constrain the mixing matrix of the isosinglet scalar mesons f0(1710), f0(1500), f0(1370): one is the approximate SU (3) symmetry empirically observed in the scalar sector above 1 GeV and confirmed by lattice QCD, and the other is the scalar glueball mass at 1710 MeV in the quenched approximation. In the SU (3) symmetry limit, f0(1500) becomes a pure SU (3) octet and is degenerate with a0(1450), while f0(1370) is mainly an SU (3) singlet with a slight mixing with the scalar glueball which is the primary component of f0(1710). These features remain essentially unchanged even when SU (3) breaking is taken into account. The observed enhancement of ωf0(1710) production over ɸf0(1710) in hadronic J/ψ decays and the copious f0(1710) production in radiative J/ψ decays lend further support to the prominent glueball nature of f0(1710). We deduce the mass of the pseudoscalar glueball G from an η-η′-G mixing formalism based on the anomalous Ward identity for transition matrix elements. With the inputs from the recent KLOE experiment, we find a solution for the pseudoscalar glueball mass around (1.4±0.1) GeV, which is fairly insensitive to a range of inputs with or without Okubo-Zweig-Iizuka-rule violating effects. This affirms that η(1405), having a large production rate in the radiative J/ψ decay and not seen in γγ reactions, is indeed a leading candidate for the pseudoscalar glueball. It is much lower than the results from quenched lattice QCD (> 2.0 GeV) due to the dynamic fermion effect. It is thus urgent to have a full QCD lattice calculation of pseudoscalar glueball masses.

scholarly journals Glueball properties at finite temperature in SU(3) anisotropic lattice QCD

2002 ◽  
Vol 66 (9) ◽  
Author(s):  
Noriyoshi Ishii ◽  
Hideo Suganuma ◽  
Hideo Matsufuru
Keyword(s):  
Lattice Qcd ◽  
Finite Temperature ◽  
Anisotropic Lattice

scholarly journals Lattice QCD at finite temperature: present status

2009 ◽  
Vol 830 (1-4) ◽  
pp. 11c-18c ◽  
Author(s):  
Péter Petreczky
Keyword(s):  
Lattice Qcd ◽  
Present Status ◽  
Finite Temperature

scholarly journals Charmonium spectral functions with the variational method in zero and finite temperature lattice QCD

2011 ◽  
Vol 84 (9) ◽  
Author(s):  
H. Ohno ◽  
S. Aoki ◽  
S. Ejiri ◽  
K. Kanaya ◽  
Y. Maezawa ◽  
...  
Keyword(s):  
Variational Method ◽  
Lattice Qcd ◽  
Finite Temperature ◽  
Spectral Functions ◽  
Temperature Lattice

scholarly journals Scalar glueball and meson spectroscopy in unquenched lattice QCD with improved staggered quarks

2005 ◽  
Author(s):  
Alan C. Irving ◽  
Eric B. Gregory ◽  
Craig McNeile ◽  
Steven Miller ◽  
Zbyszek Sroczynski
Keyword(s):  
Lattice Qcd ◽  
Scalar Glueball ◽  
Meson Spectroscopy
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