corner
corner

Phys. Rev. Lett. 95, 102004 (2005) [4 pages]

Three-Loop Mixing of Dipole Operators

Download: PDF (108 kB) Buy this article Export: BibTeX or EndNote (RIS)

Martin Gorbahn1, Ulrich Haisch2, and Mikołaj Misiak3
1IPPP, Physics Department, University of Durham, DH1 3LE, Durham, UK
2Theoretical Physics Department, Fermilab, Batavia, Illinois 60510, USA
3Institute of Theoretical Physics, Warsaw University, 00-681 Warsaw, Poland

Received 5 May 2005; published 2 September 2005

We calculate the complete three-loop O(αs3) anomalous dimension matrix for the dimension-five dipole operators that arise in the standard model after integrating out the top quark and the heavy electroweak bosons. Our computation completes the three-loop anomalous dimension matrix of operators that govern low-energy |ΔF|=1 flavor-changing processes, and represents an important ingredient of the next-to-next-to-leading order QCD analysis of the B̅ →Xsγ decay.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.95.102004
DOI:
10.1103/PhysRevLett.95.102004
PACS:
12.38.Bx, 13.20.He, 13.25.Hw, 13.40.Em