Nonmanifest left-right model contribution to the lifetime difference in D{sup 0}-D{sup 0} mixing

Journal Article · Sat Dec 01 00:00:00 EST 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.76.117701· OSTI ID:21023977

Yeghiyan, G K ^[1]

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1. Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201 (United States)

The new physics contribution to the lifetime difference in D{sup 0}-D{sup 0} mixing is reexamined within the nonmanifest left-right symmetric model. Diagrams with one of {delta}C=1 transitions, mediated by a propagator with W{sub L}-W{sub R} mixing, are revisited. While these diagrams are believed to give the dominant contribution, compatible with the experimental data, it is shown that, due to Glashow-Iliopoulos-Miani (GIM) cancellation, such diagrams are negligible in sum. Thus, the left-right symmetric model contribution to the lifetime difference in D{sup 0}-D{sup 0} mixing is about 2 orders of magnitude less than actual experimental value for {delta}{gamma}{sub D}.

• OSTI ID: 21023977
• Journal Information: Physical Review. D, Particles Fields, Vol. 76, Issue 11; Other Information: DOI: 10.1103/PhysRevD.76.117701; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D NEUTRAL MESONS
FEYNMAN DIAGRAM
LIFETIME
PROPAGATOR
QUANTUM CHROMODYNAMICS
UNIFIED-FIELD THEORIES