Skip to main content
Article
Implications of D-0-(D)over-bar(0) mixing for new physics
PHYSICAL REVIEW D
  • E Golowich
  • J Hewett
  • S Pakvasa
  • AA Petrov
Publication Date
2007
Abstract

We provide a comprehensive, up-to-date analysis of possible new physics contributions to the mass difference ΔMD in D0-D̅ 0 mixing. We consider the most general low-energy effective Hamiltonian and include leading-order QCD running of effective operators. We then explore an extensive list of possible new physics models that can generate these operators, which we organize as including extra fermions, extra gauge bosons, extra scalars, extra space dimensions and extra symmetries. For each model we place restrictions on the allowed parameter space using the recent evidence for observation of D meson mixing. In many scenarios, we find strong constraints that surpass those from other search techniques and provide an important test of flavor-changing neutral currents in the up-quark sector. We also review the recent BABAR and Belle findings, and describe the current status of the standard model predictions of D0-D̅ 0 mixing.

Comments
This is the pre-published version achieved from ArXiv. The published version is located at http://prd.aps.org/abstract/PRD/v76/i9/e095009
Pages
-
Citation Information
E Golowich, J Hewett, S Pakvasa and AA Petrov. "Implications of D-0-(D)over-bar(0) mixing for new physics" PHYSICAL REVIEW D Vol. 76 Iss. 9 (2007)
Available at: http://works.bepress.com/eugene_golowich/50/