Progress with Excited States in Lattice QCD

被引：0

作者：

Morningstar, C. ^{[1
]}

Bulava, J. ^{[2
]}

Fahy, B. ^{[1
]}

Foley, J. ^{[3
]}

Jhang, Y. C. ^{[1
]}

Juge, K. J. ^{[4
]}

Lenkner, D. ^{[1
]}

Wong, C. H. ^{[5
]}

机构：

[1] Carnegie Mellon Univ, Dept Phys, Pittsburgh, PA 15213 USA

[2] CERN, Dept Phys, CH-1211 Geneva, Switzerland

[3] Univ Utah, Dept Phys, Salt Lake City, UT 84112 USA

[4] Univ Pacific, Dept Phys, Stockton, CA 95211 USA

[5] Univ Calif San Diego, Dept Phys, La Jolla, CA 92093 USA

来源：

11TH CONFERENCE ON THE INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS (CIPANP 2012) | 2013年 / 1560卷

关键词：

Lattice QCD; Hadron spectroscopy;

D O I：

10.1063/1.4826815

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Progress in computing the spectrum of excited baryons and mesons in lattice QCD is described. Large sets of spatially-extended hadron operators are used. The need for multi-hadron operators in addition to single-hadron operators is emphasized, necessitating the use of a new stochastic treatment of the low-lying modes of quark propagation which exploits Laplacian Heaviside quark-field smearing. A new glueball operator is tested and computing the mixing of this glueball operator with a quark-antiquark operator and multiple two-pion operators is shown to be feasible.

引用

页码：448 / 450

页数：3

共 6 条

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