Ratio FK/Fπ in QCD

被引：60

作者：

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

Fodor, Z. ^{[1
,2
,3
]}

Hoelbling, C. ^{[1
]}

Katz, S. D. ^{[1
,3
]}

Krieg, S. ^{[4
]}

Kurth, T. ^{[1
]}

Lellouch, L. ^{[5
]}

Lippert, T. ^{[1
,2
]}

Ramos, A. ^{[5
]}

Szabo, K. K. ^{[1
]}

机构：

[1] Berg Univ Wuppertal, D-42119 Wuppertal, Germany

[2] Forschungszentrum Julich, Julich Supercomp Ctr, D-52425 Julich, Germany

[3] Eotvos Lorand Univ, Inst Theoret Phys, H-1117 Budapest, Hungary

[4] MIT, Ctr Theoret Phys, Cambridge, MA 02139 USA

[5] Univ Aix Marseille 2, CNRS, Ctr Phys Theor, UMR 6207,CNRS Luminy, F-13288 Marseille 9, France

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 05期

关键词：

CHIRAL PERTURBATION-THEORY; MASS;

D O I：

10.1103/PhysRevD.81.054507

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We determine the ratio F-K/ F-pi in QCD with N-f =2 + 1 flavors of sea quarks, based on a series of lattice calculations with three different lattice spacings, large volumes, and a simulated pion mass reaching down to about 190 MeV. We obtain F-K / F-pi = 1.192(7)(stat)(6)(syst). This result is then used to give an updated value of the Cabibbo-Kobayashi-Maskawa) matrix element vertical bar V-us vertical bar. The unitarity relation for the first row of this matrix is found to be well observed.

引用

页数：8

共 31 条

[1] Physical results from 2+1 flavor domain wall QCD and SU(2) chiral perturbation theory [J].

Allton, C. ;

Antonio, D. J. ;

Aoki, Y. ;

Blum, T. ;

Boyle, P. A. ;

Christ, N. H. ;

Clark, M. A. ;

Cohen, S. D. ;

Dawson, C. ;

Donnellan, M. A. ;

Flynn, J. M. ;

Hart, A. ;

Izubuchi, T. ;

Jung, C. ;

Juttner, A. ;

Kennedy, A. D. ;

Kenway, R. D. ;

Li, M. ;

Li, S. ;

Lin, M. F. ;

Mawhinney, R. D. ;

Maynard, C. M. ;

Ohta, S. ;

Pendleton, B. J. ;

Sachrajda, C. T. ;

Sasaki, S. ;

Scholz, E. E. ;

Soni, A. ;

Tweedie, R. J. ;

Wennekers, J. ;

Yamazaki, T. ;

Zanotti, J. M. .

PHYSICAL REVIEW D, 2008, 78 (11)

[2] Review of particle physics [J].

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. .

PHYSICS LETTERS B, 2008, 667 (1-5) :1-+

[3]

[Anonymous], P SCI LATTICE2008

[4] Light hadron spectroscopy with two flavors of O(a)-improved dynamical quarks -: art. no. 054502 [J].

Aoki, S ;

Burkhalter, R ;

Fukugita, M ;

Hashimoto, S ;

Ishikawa, KI ;

Ishizuka, N ;

Iwasaki, Y ;

Kanaya, K ;

Kaneko, T ;

Kuramashi, Y ;

Okawa, M ;

Onogi, T ;

Tsutsui, N ;

Ukawa, A ;

Yamada, N ;

Yoshié, T .

PHYSICAL REVIEW D, 2003, 68 (05)

[5] 2+1 flavor lattice QCD toward the physical point [J].

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. .

PHYSICAL REVIEW D, 2009, 79 (03)

[6] Light pseudoscalar decay constants, quark masses, and low energy constants from three-flavor lattice QCD [J].

Aubin, C ;

Bernard, C ;

DeTar, C ;

Osborn, J ;

Gottlieb, S ;

Gregory, EB ;

Toussaint, D ;

Heller, UM ;

Hetrick, JE ;

Sugar, R .

PHYSICAL REVIEW D, 2004, 70 (11) :114501-1

[7] Chiral perturbation theory at O(a2) for lattice QCD -: art. no. 034508 [J].

Bär, O ;

Rupak, G ;

Shoresh, N .

PHYSICAL REVIEW D, 2004, 70 (03)

[8]

BAZAVOV A, 2009, P SCI LAT2009

[9]

BAZAVOV A, ARXIV09033598 MILC C, P74012

[10] fK/fπ in full QCD with domain wall valence quarks [J].

Beane, S. R. ;

Bedaque, P. F. ;

Orginos, K. ;

Savage, M. J. .

PHYSICAL REVIEW D, 2007, 75 (09)

← 1 2 3 4 →