Abstract
In recent years charm physics has undergone a renaissance, which has been catalyzed by an unexpected and impressive set of experimental results from the B factories, the Tevatron, and LHCb. The existence of [Formula: see text] oscillations is now well established, and the recent discovery of CP violation in D0 decays has further renewed interest in the charm sector. In this article, we review the current status of charm-mixing and CP-violation measurements and assess their agreement with theoretical predictions within the Standard Model and beyond. We look forward to the great improvements in experimental precision that can be expected over the coming two decades and to the prospects for corresponding advances in theoretical understanding.
Highlights
With the Cabibbo–Kobayashi–Maskawa (CKM) [5, 6] structures λx = VcxVu∗x
According to the web update of Reference 8, we find for the central values of the CKM elements involving the charm quark Vcd = −0.2245 − 2.6 × 10−5i, Vcs = 0.97359 − 5.9 × 10−6i, Vcb = 0.0416
We find as central values λd = −0.21874 − 2.51 × 10−5 i, 5
Summary
Almost all measurements on CP violation and mixing discussed in this review were performed either at BaBar and Belle, the e+e−B-factory experiments that operated in the first decade of the. Analyses have been performed at LHCb that make use of secondary production, where the charmed particle arises from the semileptonic decay of a b hadron. The cross section for beauty production is around 20 times lower than that of charm, the events are relatively easy to select because of the high efficiency for triggering semileptonic b hadron decays. CEPC in China would have similar capabilities Another idea is to allow a high-intensity proton beam, such as that proposed for the Beam Dump Facility at CERN, to impinge on a system of tungsten targets, which would produce charm hadrons in a quantity comparable to that at LHCb Upgrade II (see discussion of the TauFV experiment in References 26, 27)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
