Study of Charm Baryons with the BaBar Experiment
نویسنده
چکیده
We report on several studies of charm baryon production and decays by the BABAR collaboration. We confirm previous observations of the Ξ ′ 0/+ c , Ξ c (2980) + and Ξ c (3077) + baryons, measure branching ratios for Cabibbo-suppressed Λ + c decays and use baryon decays to study the properties of the light-quark baryons, Ω − and Ξ(1690) 0 .
منابع مشابه
Work supported in part by US Department of Energy contract DE-AC02-76SF00515. CP Violation and Mixing in Charm Meson Decays from BABAR
Received Day Month Year Revised Day Month Year Mixing and CP violation in charm meson decays provide a unique probe of possible physics beyond the standard model. In this paper, we give a brief review of the current measurements from the BABAR experiment.
متن کاملRecent Developments in Heavy Quark and Quarkonium Production
Recent measurements of J/ψ production in ee colliders pose a challenge to the NRQCD factorization theorem for quarkonium production. Discrepancies between leading order calculations of color-octet contributions and the momentum distribution of J/ψ observed by Belle and BaBar are resolved by resumming large perturbative and nonperturbative corrections that are enhanced near the kinematic endpoin...
متن کاملCharm Physics Results from CLEO The CLEO Collaboration
We present recent results in the charm sector from the CLEO Collaboration. The data used were collected by the CLEO II and III detectors at the Cornell Electron Storage Ring (CESR). Measurements of form factors and branching fractions in semileptonic decays of D-meson and charmed-baryons, searches for CP violation and rare decays, and Dalitz analyses of D-meson decays are discussed, as well as ...
متن کاملBottomonium Studies at BaBar
Selected studies in bottomonium physics carried out by the BaBar experiment at the SLAC PEP-II e + e − collider are presented. They include bottomonium decays to open charm, and the search for the h b (1P) and the discovery of η b (1S).
متن کاملCharm Meson Spectroscopy at BABAR and CLEO-c
During the last few years many newD, Ds, charmonium, and charmed baryon excited states have been discovered. Some of these states were not expected theoretically; their masses, widths, quantum numbers, and decay modes did not fit the existing spectroscopic classification, which was based mostly on potential model calculations. The theoretical models had to be improved and new approaches have be...
متن کامل