skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: New Physics Contributions to the Lifetime Difference in D{sup 0}-D{sup 0} Mixing

Abstract

We present the first general analysis of New Physics contributions to the D{sup 0}-D{sup 0} lifetime difference (equivalently {delta}{gamma}{sub D}). We argue that New Physics (NP) contributions to |{delta}C|=1 processes can dominate the lifetime difference in the flavor SU(3) limit. We provide several specific examples of models that produce sizable effects in {delta}{gamma}{sub D} for realistic values of light quark masses, even if such NP contributions are undetectable in the current round of D{sup 0} decay experiments. This makes {delta}{gamma}{sub D} a viable observable for studies of indirect effects of New Physics.

Authors:
 [1];  [2];  [3];  [4];  [4]
  1. Department of Physics, University of Massachusetts, Amherst, Massachusetts 01003 (United States)
  2. Department of Physics and Astronomy, University of Hawaii at Manoa, Honolulu, Hawaii 96822 (United States)
  3. Department of Physics and Astronomy, Wayne State University, Detroit, Michigan 48201 (United States)
  4. (United States)
Publication Date:
OSTI Identifier:
20951328
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review Letters; Journal Volume: 98; Journal Issue: 18; Other Information: DOI: 10.1103/PhysRevLett.98.181801; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; D NEUTRAL MESONS; D QUARKS; FLAVOR MODEL; LIFETIME; MASS; PARTICLE DECAY; SU-3 GROUPS; U QUARKS

Citation Formats

Golowich, Eugene, Pakvasa, Sandip, Petrov, Alexey A., Michigan Center for Theoretical Physics, and University of Michigan, Ann Arbor, Michigan 48109. New Physics Contributions to the Lifetime Difference in D{sup 0}-D{sup 0} Mixing. United States: N. p., 2007. Web. doi:10.1103/PHYSREVLETT.98.181801.
Golowich, Eugene, Pakvasa, Sandip, Petrov, Alexey A., Michigan Center for Theoretical Physics, & University of Michigan, Ann Arbor, Michigan 48109. New Physics Contributions to the Lifetime Difference in D{sup 0}-D{sup 0} Mixing. United States. doi:10.1103/PHYSREVLETT.98.181801.
Golowich, Eugene, Pakvasa, Sandip, Petrov, Alexey A., Michigan Center for Theoretical Physics, and University of Michigan, Ann Arbor, Michigan 48109. Fri . "New Physics Contributions to the Lifetime Difference in D{sup 0}-D{sup 0} Mixing". United States. doi:10.1103/PHYSREVLETT.98.181801.
@article{osti_20951328,
title = {New Physics Contributions to the Lifetime Difference in D{sup 0}-D{sup 0} Mixing},
author = {Golowich, Eugene and Pakvasa, Sandip and Petrov, Alexey A. and Michigan Center for Theoretical Physics and University of Michigan, Ann Arbor, Michigan 48109},
abstractNote = {We present the first general analysis of New Physics contributions to the D{sup 0}-D{sup 0} lifetime difference (equivalently {delta}{gamma}{sub D}). We argue that New Physics (NP) contributions to |{delta}C|=1 processes can dominate the lifetime difference in the flavor SU(3) limit. We provide several specific examples of models that produce sizable effects in {delta}{gamma}{sub D} for realistic values of light quark masses, even if such NP contributions are undetectable in the current round of D{sup 0} decay experiments. This makes {delta}{gamma}{sub D} a viable observable for studies of indirect effects of New Physics.},
doi = {10.1103/PHYSREVLETT.98.181801},
journal = {Physical Review Letters},
number = 18,
volume = 98,
place = {United States},
year = {Fri May 04 00:00:00 EDT 2007},
month = {Fri May 04 00:00:00 EDT 2007}
}