Two topics from lattice NRQCD at non-zero temperature: heavy quark mass dependence and S-wave bottomonium states moving in a thermal bath

Two topics from lattice NRQCD at non-zero temperature: heavy quark mass dependence and S-wave bottomonium states moving in a thermal bath
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非零温度下晶格 NRQCD 的两个主题:重夸克质量依赖性和在热浴中移动的 S 波底态

DOI:
10.22323/1.164.0086
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发表时间:
2012
期刊:
Nuclear Physics
影响因子:
--
通讯作者:
J. Skullerud
J. Skullerud
中科院分区:
--
文献类型:
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作者:
Seyong Kim;G. Aarts;C. Allton;M. Lombardo;M. Oktay;S. Ryan;D. Sinclair;J. Skullerud

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并使用带有 NRQCD 核的最大熵方法研究在这些温度的热浴中移动的 S 波底态的光谱函数。对于所研究的动量范围,运动态的能量表现出二次动量依赖性,并且随着底离子动量的增加,运动态的宽度没有表现出显着的变化。此外,我们发现在相关器比中,温度效应大于底夸克质量20%变化引起的效应。第30届国际晶格场论研讨会 - Lattice 2012,2012年6月24-29日澳大利亚凯恩斯
and study spectral functions of S-wave bottomoniumstates movingin a thermalbathat these temperaturesusingMaximumEntropyMethod with NRQCD kernel. For the studied momentum range, the energy of moving statesshows quadraticmomentum-dependenceand the width of movingstates does not show significantchanges as the momentum of bottomonium is increased. Also, we find that in correlator ratios,the temperature effect is larger than the effect caused by 20% change in the bottom quark mass.The 30th International Symposium on Lattice Field Theory - Lattice 2012,June 24-29, 2012Cairns, Australia