Bottomonium above Deconfinement in Lattice Nonrelativistic QCD

被引：68

作者：

Aarts, G. ^{[1
]}

Kim, S. ^{[2
]}

Lombardo, M. P. ^{[3
]}

Oktay, M. B. ^{[4
]}

Ryan, S. M. ^{[5
]}

Sinclair, D. K. ^{[6
]}

Skullerud, J. -I. ^{[7
]}

机构：

[1] Swansea Univ, Dept Phys, Swansea SA2 8PP, W Glam, Wales

[2] Sejong Univ, Dept Phys, Seoul 143747, South Korea

[3] INFN Lab Nazl Frascati, I-00044 Frascati, RM, Italy

[4] Univ Utah, Dept Phys & Astron, Salt Lake City, UT 84112 USA

[5] Trinity Coll Dublin, Sch Math, Dublin 2, Ireland

[6] Argonne Natl Lab, HEP Div, Argonne, IL 60439 USA

[7] Natl Univ Ireland Maynooth, Dept Math Phys, Maynooth, Kildare, Ireland

来源：

PHYSICAL REVIEW LETTERS | 2011年 / 106卷 / 06期

基金：

爱尔兰科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.106.061602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study the temperature dependence of bottomonium for temperatures in the range 0.4T(c) < T < 2.1T(c), using nonrelativistic dynamics for the bottom quark and full relativistic lattice QCD simulations for N-f = 2 light flavors on a highly anisotropic lattice. We find that the Y is insensitive to the temperature in this range, while the chi(b) propagators showa crossover from the exponential decay characterizing the hadronic phase to a power-law behavior consistent with nearly free dynamics at T similar or equal to 2T(c).

引用

页数：4

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