Topological susceptibility and eta ' meson mass from N-f=2 lattice QCD at the physical point

doi:10.1103/PhysRevD.99.034511

	Topological susceptibility and eta ' meson mass from N-f=2 lattice QCD at the physical point
	Ottnad, K.4,5,6; Liu, L.1; Kostrzewa, B.5,6; Werner, M.5,6; Jost, C.5,6; Helmes, C.5,6; Dimopoulos, P.2; Knippschild, B.5,6; Wenger, U.3; Urbach, C.5,6
刊名	PHYSICAL REVIEW D
	2019-02-28
卷号	99 期号:3 页码:13
ISSN号	2470-0010
DOI	10.1103/PhysRevD.99.034511
通讯作者	Dimopoulos, P.()
英文摘要	In this paper we explore the computation of topological susceptibility and eta' meson mass in N-f = 2 flavor QCD using lattice techniques with a physical value of the pion mass as well as larger pion mass values. We observe that the physical point can be reached without a significant increase in the statistical noise. The mass of the eta' meson can be obtained from both fermionic two point functions and topological charge density correlation functions, giving compatible results. With the pion mass dependence of the eta' mass being flat we arrive at M eta' = 772(18) MeV without an explicit continuum limit. For the topological susceptibility we observe a linear dependence on M-2 pi, however, with an additional constant stemming from lattice artifacts.
资助项目	DFG[CRC110] ; Swiss National Science Foundation
WOS关键词	SPECTRUM
WOS研究方向	Astronomy & Astrophysics ; Physics
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000459909200007
资助机构	DFG ; Swiss National Science Foundation
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/134538]
专题	中国科学院近代物理研究所
通讯作者	Dimopoulos, P.
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Gansu, Peoples R China 2.Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy 3.Univ Bern, Inst Theoret Phys, Albert Einstein Ctr Fundamental Phys, CH-3012 Bern, Switzerland 4.Johannes Gutenberg Univ Mainz, Inst Kernphys, Johann Joachim Becher Weg 45, D-55099 Mainz, Germany 5.Rheinische Friedrich Wilhelms Univ Bonn, HISKP, D-53115 Bonn, Germany 6.Rheinische Friedrich Wilhelms Univ Bonn, BCTP, D-53115 Bonn, Germany
推荐引用方式 GB/T 7714	Ottnad, K.,Liu, L.,Kostrzewa, B.,et al. Topological susceptibility and eta ' meson mass from N-f=2 lattice QCD at the physical point[J]. PHYSICAL REVIEW D,2019,99(3):13.
APA	Ottnad, K..,Liu, L..,Kostrzewa, B..,Werner, M..,Jost, C..,...&Petschlies, M..(2019).Topological susceptibility and eta ' meson mass from N-f=2 lattice QCD at the physical point.PHYSICAL REVIEW D,99(3),13.
MLA	Ottnad, K.,et al."Topological susceptibility and eta ' meson mass from N-f=2 lattice QCD at the physical point".PHYSICAL REVIEW D 99.3(2019):13.