Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2002-07-17
Physics
High Energy Physics
High Energy Physics - Phenomenology
7 pages, no figures, Invited talk at Flavor Physics and CP violation (FPCP), Philadelphia, May 2002
Scientific paper
The Standard Model contribution to D0-anti-D0 mixing is dominated by the contributions of light s and d quarks. Neglecting the tiny effects due to b quark, both mass and lifetime differences vanish in the limit of SU(3) symmetry. Thus, the main challenge in the Standard Model calculation of the mass and width difference in the D0-anti-D0 system is to estimate the size of SU(3) breaking effects. We prove that D meson mixing occurs in the Standard Model only at second order in SU(3) violation. We consider the possibility that phase space effects may be the dominant source of SU(3) breaking. We find that y=Delta Gamma/2Gamma of the order of one percent is natural in the Standard Model, potentially reducing the sensitivity to new physics of measurements of D meson mixing. We also discuss the possibility of observing lifetime differences and CP violation in charmed mesons both at the currently operating and proposed facilities.
No associations
LandOfFree
D0-anti-D0 mixing does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with D0-anti-D0 mixing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and D0-anti-D0 mixing will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-561642