Erratum: charm quark contribution to $ {K^{+}}\to {\pi^{+}}\nu \overline{\nu} $ at next-to-next-to-leading order

Andrzej J. Buras, Martin Gorbahn, Ulrich Haisch, Ulrich Nierste

doi:10.1007/jhep11(2012)167

Erratum: charm quark contribution to $ {K^{+}}\to {\pi^{+}}\nu \overline{\nu} $ at next-to-next-to-leading order

DOI PDF Web Site Web Site 被引用文献2件

書誌事項

公開日: 2012-11

権利情報

https://creativecommons.org/licenses/by/2.0
https://creativecommons.org/licenses/by/2.0

DOI

10.1007/jhep11(2012)167

公開者: Springer Science and Business Media LLC

説明

<jats:title>A<jats:sc>bstract</jats:sc> </jats:title> <jats:p>We correct the treatment of anomalous triangle diagrams occuring in the effective theory in which the heavy top quark is integrated out. To this end we determine the initial conditions and anomalous dimensions of the operator describing the <jats:italic>Z</jats:italic>-mediated coupling of neutrinos to quarks and further rectify the bilocal renormalization group evolution. Our changes affect the charm-quark contribution <jats:italic>P</jats:italic> <jats:sub>c</jats:sub>(<jats:italic>X</jats:italic>) at the next-to-leading and next-to-next-to-leading orders, but are numerically negligible as they amout to relative shifts below a permille.</jats:p>