Disconnected quark loop contributions to nucleon observables in lattice QCD

被引：61

作者：

Abdel-Rehim, A. ^{[1
]}

Alexandrou, C. ^{[1
,2
]}

Constantinou, M. ^{[1
]}

Drach, V. ^{[3
]}

Hadjiyiannakou, K. ^{[2
]}

Jansen, K. ^{[2
,3
]}

Koutsou, G. ^{[1
]}

Vaquero, A. ^{[1
]}

机构：

[1] Cyprus Inst, Computat Based Sci & Technol Res Ctr, CY-2121 Nicosia, Cyprus

[2] Univ Cyprus, Dept Phys, CY-1678 Nicosia, Cyprus

[3] DESY, D-15738 Zeuthen, Germany

来源：

PHYSICAL REVIEW D | 2014年 / 89卷 / 03期

关键词：

MONTE-CARLO;

D O I：

10.1103/PhysRevD.89.034501

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We perform a high statistics calculation of disconnected fermion loops on graphics processing units for a range of nucleon matrix elements extracted using lattice QCD. The isoscalar electromagnetic and axial vector form factors, the sigma terms and the momentum fraction and helicity are among the quantities we evaluate. We compare the disconnected contributions to the connected ones and give the physical implications on nucleon observables that probe its structure.

引用

页数：14

共 50 条

[1] Quark mass dependence of nucleon observables and lattice QCD
Procura, M.
Musch, B. U.
Hemmert, T. R.
Weise, W.
PARTICLES AND NUCLEI, 2006, 842 : 240 - 242
[2] Strange and light quark contributions to the nucleon mass from lattice QCD
Bali, Gunnar S.
Collins, Sara
Goeckeler, Meinulf
Horsley, Roger
Nakamura, Yoshifumi
Nobile, Andrea
Pleiter, Dirk
Rakow, P. E. L.
Schaefer, Andreas
Schierholz, Gerrit
Sternbeck, Andre
Zanotti, James M.
PHYSICAL REVIEW D, 2012, 85 (05):
[3] Strange quark contributions to nucleon mass and spin from lattice QCD
Engelhardt, M.
PHYSICAL REVIEW D, 2012, 86 (11):
[4] Calculation of disconnected quark loops in lattice QCD
程贞
张剑波
熊光仪
Chinese Physics C, 2020, (03) : 55 - 61
[5] Calculation of disconnected quark loops in lattice QCD
程贞
张剑波
熊光仪
Chinese Physics C, 2020, 44 (03) : 55 - 61
[6] Calculation of disconnected quark loops in lattice QCD
Cheng, Zhen
Zhang, Jian-Bo
Xiong, Guang-Yi
CHINESE PHYSICS C, 2020, 44 (03)
[7] Nucleon observables and loop diagrams in cavity QCD
OConnor, MS
Viollier, RD
ANNALS OF PHYSICS, 1996, 248 (02) : 286 - 328
[8] Disconnected loop subtraction methods in lattice QCD
Baral, Suman
Whyte, Travis
Wilcox, Walter
Morgan, Ronald B.
COMPUTER PHYSICS COMMUNICATIONS, 2019, 241 : 64 - 79
[9] Disconnected loop noise methods in lattice QCD
Wilcox, W
Lindsay, B
NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1998, 63 : 973 - 975
[10] Loop representations of the quark determinant in lattice QCD
Duncan, A
Eichten, E
Roskies, R
Thacker, H
PHYSICAL REVIEW D, 1999, 60 (05):

← 1 2 3 4 5 →