Lattice study of the scalar and baryon spectra in many-flavor QCD

被引：2

作者：

Aoki, Yasumichi ^{[1
]}

Aoyama, Tatsumi ^{[1
]}

Bennett, Ed ^{[2
]}

Kurachi, Masafumi ^{[3
]}

Maskawa, Toshihide ^{[1
]}

Miura, Kohtaroh ^{[4
]}

Nagai, Kei-ichi ^{[1
]}

Ohki, Hiroshi ^{[5
]}

Rinaldi, Enrico ^{[6
]}

Shibata, Akihiro ^{[7
]}

Yamawaki, Koichi ^{[1
]}

Yamazaki, Takeshi ^{[8
]}

机构：

[1] Nagoya Univ, Kobayashi Maskawa Inst Origin Particles & Univers, Nagoya, Aichi 4648602, Japan

[2] Swansea Univ, Dept Phys, Singleton Pk, Swansea SA2 8PP, W Glam, Wales

[3] High Energy Accelerator Res Org KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan

[4] Aix Marseille Univ, CPT, Campus Luminy,Case 907,163 Ave Luminy, F-13288 Marseille 9, France

[5] Brookhaven Natl Lab, RIKEN BNL Res Ctr, Upton, NY 11973 USA

[6] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

[7] High Energy Accelerator Res Org KEK, Comp Res Ctr, Tsukuba, Ibaraki 3050801, Japan

[8] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058571, Japan

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS A | 2017年 / 32卷 / 35期

关键词：

Lattice gauge theory; conformal/Walking Dynamics; dark matter; composite Higgs particle;

D O I：

10.1142/S0217751X17470108

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

In the search for a composite Higgs boson in walking technicolor models, many flavor QCD, in particular with N-f = 8, is an attractive candidate, and has been found to have a composite flavor-singlet scalar as light as the pion. Based on lattice simulations of this theory with the HISQ action, we will present our preliminary results on the scalar decay constant using the fermionic bilinear operator, and on the mass of the lightest baryon state which could be a dark matter candidate. Combining these two results, implications for dark matter direct detection are also discussed.

引用

页数：8

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