Electroweak corrections to the charm quark contribution to K+→π+ ν(ν)over-bar

被引：115

作者：

Brod, Joachim ^{[1
]}

Gorbahn, Martin ^{[1
]}

机构：

[1] Univ Karlsruhe, Inst Theoret Teilchenphys, D-76128 Karlsruhe, Germany

来源：

PHYSICAL REVIEW D | 2008年 / 78卷 / 03期

关键词：

D O I：

10.1103/PhysRevD.78.034006

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We compute the leading-log QED, the next-to-leading-log QED-QCD, and the electroweak corrections to the charm quark contribution relevant for the rare decay K+->pi(+)nu(nu) over bar. The corresponding parameter P-c(X) is increased by up to 2% with respect to the pure QCD estimate to P-c(X)=0.372 +/- 0.015 for m(c)(m(c))=(1.286 +/- 0.013)GeV, alpha(s)(M-Z)=0.1176 +/- 0.0020, and vertical bar V-us vertical bar=0.2255. For the branching ratio we find B(K+->pi(+)nu(nu) over bar)=(8.5 +/- 0.7)x10(-11), where the quoted uncertainty is dominated by the Cabibbo-Kobayashi-Maskawa elements.

引用

页数：9

共 45 条

[1] Measurement of the K+→π+ν(ν)over-bar branching ratio
Adler, S.
Anisimovsky, V. V.
Aoki, M.
Ardebili, M.
Artamonov, A. V.
Atiya, M.
Bassalleck, B.
Bazarko, A. O.
Bhuyan, B.
Blackmore, E. W.
Bryman, D. A.
Chen, S.
Chiang, I-H.
Christidi, I. -A.
Convery, M. R.
Cooper, P. S.
Diwan, M. V.
Frank, J. S.
Fujiwara, T.
Haggerty, J.
Hu, J.
Inagaki, T.
Ito, M. M.
Ivashkin, A. P.
Jaffe, D. E.
Kabe, S.
Kazumori, M.
Kuno, Y.
Kuriki, M.
Kettell, S. H.
Khabibullin, M. M.
Khotjantsev, A. N.
Kitching, P.
Kobayashi, M.
Komatsubara, T. K.
Konaka, A.
Kozhevnikov, A. P.
Kudenko, Yu. G.
Kushnirenko, A.
Landsberg, L. G.
Lewis, B.
Li, K. K.
Littenberg, L. S.
Macdonald, J. A.
Marlow, D. R.
McPherson, R. A.
Meyers, P. D.
Mildenberger, J.
Mineev, O. V.
Miyajima, M.
[J]. PHYSICAL REVIEW D, 2008, 77 (05):
[2] [Anonymous], ARXIVMATHPH0010025
[3] [Anonymous], ARXIVHEPPH0405132
[4] [Anonymous], ARXIV08011817
[5] BIJNENS J, ARXIV07110148
[6] Complete NNLO QCD analysis of (B)over-bar→Xsl+l- and higher order electroweak effects -: art. no. 071
Bobeth, C
Gambino, P
Gorbahn, M
Haisch, U
[J]. JOURNAL OF HIGH ENERGY PHYSICS, 2004, (04):
[7] BROD J, UNPUB
[8] K->pi nu(nu)over-bar and high precision determinations of the CKM matrix
Buchalla, G
Buras, AJ
[J]. PHYSICAL REVIEW D, 1996, 54 (11): : 6782 - 6789
[9] THE RARE DECAYS K+-]PI+NU(NU)OVER-BAR AND K(L)-]MU+MU- BEYOND LEADING LOGARITHMS
BUCHALLA, G
BURAS, AJ
[J]. NUCLEAR PHYSICS B, 1994, 412 (1-2) : 106 - 142
[10] QCD CORRECTIONS TO THE (S)OVER-BAR-DZ VERTEX FOR ARBITRARY TOP-QUARK MASS
BUCHALLA, G
BURAS, AJ
[J]. NUCLEAR PHYSICS B, 1993, 398 (02) : 285 - 300

← 1 2 3 4 5 →