Charm Lifetimes and Mixing
نویسنده
چکیده
Abstract. A review of the latest results on charm lifetimes and D-mixing is presented. The e+e− collider experiments are now able to measure charm lifetimes quite precisely, however comparisons with the latest results from fixed-target experiments show that possible systematic effects could be evident. The new D-mixing results from the B-factories have changed the picture that is emerging. Although the new world averaged value of yCP is now consistent with zero, there is still a very interesting and favoured scenario if the strong phase difference between the Doubly-Cabibbosuppressed and the Cabibbo-flavoured D0 → Kπ decay is large.
منابع مشابه
Heavy Quark Lifetimes, Mixing and CP Violation
This paper emphasizes four topics that represent some of the year’s highlights in heavy quark physics. First of all, a review is given of charm lifetime measurements and how they lead to better understanding of the mechanisms of charm decay. Secondly, the CLEO collaboration’s new search for charm mixing is reported, which significantly extends the search for new physics in that sector. Thirdly,...
متن کاملNew FOCUS results on charm mixing and CP violation
We present a summary of recent results on CP violation and mixing in the charm quark sector based on a highstatistics sample collected by photoproduction experiment FOCUS (E831 at Fermilab). We have measured the difference in lifetimes for the D decays: D → K−π+ and D → K−K+. This translates into a measurement of the yCP mixing parameter in the D D̄ system, under the assumptions that K−K+ is an ...
متن کاملStatus of Charm Flavor Physics
The role of charm in testing the Standard Model description of quark mixing and CP violation through measurements of lifetimes, decay constants and semileptonic form factors is reviewed. Together with Lattice QCD, charm has the potential this decade to maximize the sensitivity of the entire flavor physics program to new physics. and pave the way for understanding physics beyond the Standard Mod...
متن کاملCharm Decays
To write a review on charm decays is not an easy task because of the large amount (fortunately!) of experimental results in the recent years. I was forced to make a selection of topics. I am going to discuss with the eyes of an experimentalist: D-D 0 mixing, CP violation, rare decays, charm lifetimes, semileptonic decays, hadronic decays, and the big surprise of the DsJ states. Obviously there ...
متن کاملSe p 19 96 Heavy Flavour Decays - Introduction and Summary
We review some selected topics in the decays of heavy flavours, beauty and charm, which are of principal interest at HERA-B and HERA. The topics in B physics include: an update on the quark mixing matrix and CP violating phases, issues bearing on an improved resolution on the CP-violating phase ∆(sin 2β), prospects of measuring radiative and semileptonic rare B decays, the B 0 s-B 0 s mixing ra...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2001