Neutral-kaon mixing from (2+1)-flavor domain-wall QCD

被引：56

作者：

Antonio, D. J. ^{[1
]}

Boyle, P. A. ^{[1
]}

Blum, T. ^{[2
,8
]}

Christ, N. H. ^{[3
]}

Cohen, S. D. ^{[3
]}

Dawson, C. ^{[2
]}

Izubuchi, T. ^{[2
,6
]}

Kenway, R. D. ^{[1
]}

Jung, C. ^{[4
]}

Li, S. ^{[3
]}

Lin, M. F. ^{[3
]}

Mawhinney, R. D. ^{[3
]}

Noaki, J. ^{[7
,9
]}

Ohta, S. ^{[2
,9
,10
]}

Pendleton, B. J. ^{[1
]}

Scholz, E. E. ^{[4
]}

Soni, A. ^{[4
]}

Tweedie, R. J. ^{[1
]}

Yamaguchi, A. ^{[5
]}

机构：

[1] Univ Edinburgh, Sch Phys, SUPA, Edinburgh EH9 3JZ, Midlothian, Scotland

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

[3] Columbia Univ, Dept Phys, New York, NY 10027 USA

[4] Brookhaven Natl Lab, Upton, NY 11973 USA

[5] Univ Glasgow, Dept Phys & Astron, SUPA, Glasgow G12 8QQ, Lanark, Scotland

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

[7] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[8] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA

[9] KEK, Inst Particle & Nucl Studies, Tsukuba, Ibaraki 3050801, Japan

[10] SOKENDAI, Dept Phys, Tsukuba, Ibaraki 3050801, Japan

来源：

PHYSICAL REVIEW LETTERS | 2008年 / 100卷 / 03期

基金：

英国科学技术设施理事会;

关键词：

D O I：

10.1103/PhysRevLett.100.032001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present the first results for neutral-kaon mixing using (2+1)-flavors of domain-wall fermions. A new approach is used to extrapolate to the physical up and down quark masses from our numerical studies with pion masses in the range 240-420 MeV; only SU(2)(L)xSU(2)(R) chiral symmetry is assumed and the kaon is not assumed to be light. Our main result is B ($$$) over bar MSK(2 GeV)=0.524(10)(28) where the first error is statistical and the second incorporates estimates for all systematic errors.

引用

页数：4

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