Physical point simulation in 2+1 flavor lattice QCD

被引：114

作者：

Aoki, S. ^{[1
,2
]}

Ishikawa, K. -I. ^{[3
,4
]}

Ishizuka, N. ^{[1
,2
]}

Izubuchi, T. ^{[5
]}

Kadoh, D. ^{[3
]}

Kanaya, K. ^{[1
]}

Kuramashi, Y. ^{[1
,3
]}

Namekawa, Y. ^{[3
]}

Okawa, M. ^{[4
]}

Taniguchi, Y. ^{[1
,3
]}

Ukawa, A. ^{[1
,3
]}

Ukita, N. ^{[3
]}

Yamazaki, T. ^{[3
]}

Yoshie, T. ^{[1
,3
]}

机构：

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

[2] Brookhaven Natl Lab, Riken BNL Res Ctr, Upton, NY 11973 USA

[3] Univ Tsukuba, Ctr Computat Sci, Tsukuba, Ibaraki 3058577, Japan

[4] Hiroshima Univ, Grad Sch Sci, Hiroshima 7398526, Japan

[5] Kanazawa Univ, Inst Theoret Phys, Kanazawa, Ishikawa 9201192, Japan

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 07期

关键词：

DYNAMICAL FERMIONS; PHMC ALGORITHM;

D O I：

10.1103/PhysRevD.81.074503

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of the physical point simulation in 2 + 1 flavor lattice QCD with the non-perturbatively O(a)-improved Wilson quark action and the Iwasaki gauge action at beta = 9 on a 32(3) x 64 lattice. The physical quark masses together with the lattice spacing is determined with m(pi), m(K) and m(Omega) as physical inputs. There are two key algorithmic ingredients to make possible the direct simulation at the physical point: One is the mass-preconditioned domain-decomposed HMC algorithm to reduce the computational cost. The other is the reweighting technique to adjust the hopping parameters exactly to the physical point. The physics results include the hadron spectrum, the quark masses and the pseudo-scalar meson decay constants. The renormalization factors are nonperturbatively evaluated with the Schrodinger functional method. The results are compared with the previous ones obtained by the chiral extrapolation method.

引用

页数：12

共 43 条

[1] Alexandrou C, 2000, NUCL PHYS B-PROC SUP, V83-4, P765, DOI 10.1016/S0920-5632(00)91800-0
[2] Efficiency of the UV-filtered multiboson algorithm
Alexandrou, C
de Forcrand, P
D'Elia, M
Panagopoulos, H
[J]. PHYSICAL REVIEW D, 2000, 61 (07)
[3] Review of particle physics
Amsler, C.
Doser, M.
Antonelli, M.
Asner, D. M.
Babu, K. S.
Baer, H.
Band, H. R.
Barnett, R. M.
Bergren, E.
Beringer, J.
Bernardi, G.
Bertl, W.
Bichsel, H.
Biebel, O.
Bloch, P.
Blucher, E.
Blusk, S.
Cahn, R. N.
Carena, M.
Caso, C.
Cecccci, A.
Chakraborty, D.
Chen, M. -C.
Chivukula, R. S.
Cowan, G.
Dahl, O.
D'Ambrosio, G.
Damour, T.
de Gouvea, A.
DeGrand, T.
Dobrescu, B.
Drees, M.
Edwards, D. A.
Eidelman, S.
Elvira, V. D.
Erler, J.
Ezhela, V. V.
Feng, J. L.
Fetscher, W.
Fields, B. D.
Foster, B.
Gaisser, T. K.
Garren, L.
Gerber, H. -J.
Gerbier, G.
Gherghetta, T.
Giudice, G. F.
Goodman, M.
Grab, C.
Gritsan, A. V.
[J]. PHYSICS LETTERS B, 2008, 667 (1-5) : 1 - +
[4] [Anonymous], POS LAT2009
[5] Lattice QCD calculation of the ρ meson decay width
Aoki, S.
Fukugita, M.
Ishikawa, K-I.
Ishizuka, N.
Kanaya, K.
Kuramashi, Y.
Namekawa, Y.
Okawa, M.
Sasaki, K.
Ukawa, A.
Yoshie, T.
[J]. PHYSICAL REVIEW D, 2007, 76 (09):
[6] Nonperturbative O(a) improvement of the Wilson quark action with the renormalization-group-improved gauge action using the Schrodinger functional method
Aoki, S
Fukugita, M
Hashimoto, S
Ishikawa, KI
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kaneko, T
Kuramashi, Y
Okawa, M
Takeda, S
Taniguchi, Y
Tsutsui, N
Ukawa, A
Yamada, N
Yoshié, T
[J]. PHYSICAL REVIEW D, 2006, 73 (03):
[7] Polynomial hybrid Monte Carlo algorithm for lattice QCD with an odd number of flavors -: art. no. 094507
Aoki, S
Burkhalter, R
Fukugita, M
Hashimoto, S
Ishikawa, KI
Ishizuka, N
Iwasaki, Y
Kanaya, K
Kaneko, T
Kuramashi, Y
Okawa, M
Onogi, T
Tominaga, S
Tsutsui, N
Ukawa, A
Yamada, N
Yoshié, T
[J]. PHYSICAL REVIEW D, 2002, 65 (09) : 945071 - 9450722
[8] Precise determination of the strong coupling constant in Nf=2+1 lattice QCD with the Schrodinger functional scheme
Aoki, S.
Ishikawa, K. -I.
Ishizuka, N.
Izubuchi, T.
Kadoh, D.
Kanaya, K.
Kuramashi, Y.
Murano, K.
Namekawa, Y.
Okawa, M.
Taniguchi, Y.
Ukawa, A.
Ukita, N.
Yoshie, T.
[J]. JOURNAL OF HIGH ENERGY PHYSICS, 2009, (10):
[9] 2+1 flavor lattice QCD toward the physical point
Aoki, S.
Ishikawa, K. -I.
Ishizuka, N.
Izubuchi, T.
Kadoh, D.
Kanaya, K.
Kuramashi, Y.
Namekawa, Y.
Okawa, M.
Taniguchi, Y.
Ukawa, A.
Ukita, N.
Yoshie, T.
[J]. PHYSICAL REVIEW D, 2009, 79 (03):
[10] AOKI S, UNPUB

← 1 2 3 4 5 →