Remark on the matrix element of O_11
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
64
Journal Issue
9
Date Issued
1990
Author(s)
G. Valencia
Abstract
The gluon dipole operator ${O}_{11}$ has received much attention recently because it can have a large coefficient in some SUSY extensions of the standard model. We estimate the matrix element of ${O}_{11}$ using naive dimensional analysis and find that, numerically, it is very close to the commonly used result of Bertolini, Eeg, and Fabbrichesi. We do not find any evidence to suggest that the latter is an underestimate.
Type
journal article