Bagan, E. ; Mann, R. B. ; Steele, T. G. ; Sarkar, U. (1991) Renormalization-group evolution of the gluonic CP-violating operator Physical Review D - Particles, Fields, Gravitation and Cosmology, 43 (7). pp. 2233-2235. ISSN 1550-7998
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Official URL: http://prd.aps.org/abstract/PRD/v43/i7/p2233_1
Related URL: http://dx.doi.org/10.1103/PhysRevD.43.2233
Abstract
The QCD evolution of the dimension-6 CP-violating operator G3=(g/2)fabcε αβγδ GατaGβbτGγ δc is determined using a nonzero-momentum insertion of the composite operator, explicitly accounting for operator mixing in the renormalization of G3. Cancellation of the gauge parameter from the anomalous dimension of G3 is used as a consistency check on the final results. A strong QCD suppression of the CP-violating effects in the neutron electric dipole moment is confirmed, contrary to initial claims of an enhancement.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to The American Physical Society. |
| ID Code: | 45476 |
| Deposited On: | 28 Jun 2011 04:57 |
| Last Modified: | 28 Jun 2011 04:57 |
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