Searches for Rare Leptonic and Semileptonic Charm Decays at BaBar
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 2007 |
| Genre | : |
| ISBN | : |
Download Searches for Rare Leptonic and Semileptonic Charm Decays at BaBar Book in PDF, ePub and Kindle
Searches For Rare Leptonic And Semileptonic Charm Decays At Babar PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Searches For Rare Leptonic And Semileptonic Charm Decays At Babar PDF full book. Access full book title Searches For Rare Leptonic And Semileptonic Charm Decays At Babar.
Searches for Rare Or Forbidden Semileptonic Charm Decays
| Author | : |
| Publisher | : |
| Total Pages | : 15 |
| Release | : 2011 |
| Genre | : |
| ISBN | : |
Download Searches for Rare Or Forbidden Semileptonic Charm Decays Book in PDF, ePub and Kindle
We present searches for rare or forbidden charm decays of the form X{sub c} 2!h{sup ±}l{sup {-+}}l{sup ({prime})+}, where X{sub c} is a charm hardron (D+, D{sub s}+, or [Lambda]{sub c}+), h{sup {+-}} is a pion, kaon, or proton, and l{sup ({prime}){+-}} is an electron or muon. The analysis is based on 384 fb−1 of e+e− annihilation data collected at or close to the [Upsilon](4S) resonance with the BABAR detector at the SLAC National Accelerator Laboratory. No significant signal is observed for any of the 35 decay modes that are investigated. We establish 90% confidence-level upper limits on the branching fractions between 1 x 10−6 and 44 x 10−6 depending on the channel. In most cases, these results represent either the first limits or significant improvements on existing limits for the decay modes studied.
Searches for Rare and Forbidden B and Charm Decays at the BaBar Experiment
| Author | : |
| Publisher | : |
| Total Pages | : 4 |
| Release | : 2014 |
| Genre | : |
| ISBN | : |
Download Searches for Rare and Forbidden B and Charm Decays at the BaBar Experiment Book in PDF, ePub and Kindle
Search for D0 - D0bar Mixing and Rare Charm Decays
| Author | : U. Egede |
| Publisher | : |
| Total Pages | : |
| Release | : 2004 |
| Genre | : |
| ISBN | : |
Download Search for D0 - D0bar Mixing and Rare Charm Decays Book in PDF, ePub and Kindle
Based on a dataset acquired by the BABAR experiment running on and near the {Upsilon}(4S) resonance from 1999-2002, an upper limit is set on the rate of D{sup 0}-{bar D}{sup 0} mixing using the decay mode D*{sup +} {yields} D{sup 0}{pi}{sup +}, followed by a semi-leptonic decay of the D{sup 0}. Results are compared to previous BABAR analysis using hadronic decays. We also set limits on the flavor-changing neutral current decays D{sup 0} {yields} e{sup +}e{sup -} ({mu}{sup +}{mu}{sup -}) and the lepton-flavor violation decays D{sup 0} {yields} e{sup {+-}}{mu}{sup {-+}}.
Charm Decays at BABAR.
| Author | : Charles (M.) |
| Publisher | : |
| Total Pages | : |
| Release | : 2004 |
| Genre | : |
| ISBN | : |
Download Charm Decays at BABAR. Book in PDF, ePub and Kindle
The results of several studies of charmed mesons and baryons at BABAR are presented. First, searches for the rare decays D{sup 0} {yields} l{sup +}l{sup -} are presented and new upper limits on these processes are established. Second, a measurement of the branching fraction of the isospin-violating hadronic decay D*{sub s}(2112){sup +} {yields} D{sub s}{sup +}{pi}{sup 0} relative to the radiative decay D*{sub s}(2112){sup +} {yields} D{sub s}{sup +}{gamma} is made. Third, the decays of D*{sub sJ}(2317){sup +} and D{sub sJ}(2460){sup +} mesons are studied and ratios of branching fractions are measured. Fourth, Cabibbo-suppressed decays of the {Lambda}{sub c}{sup +} are examined and their branching fractions measured relative to Cabibbo-allowed modes. Fifth, the {Chi}{sub c}{sup 0} is studied through its decays to {Chi}{sup -}{pi}{sup +} and {Omega}{sup -}K{sup +}; in addition to measuring the ratio of branching fractions for {Chi}{sub c}{sup 0} produced from the c{bar c} continuum, the uncorrected momentum spectrum is measured, providing clear confirmation of {Chi}{sub c}{sup 0} production in B decays.
Proceedings of the International Workshop on Tau-Charm Physics
| Author | : Yi-Fang Wang |
| Publisher | : |
| Total Pages | : 346 |
| Release | : 2006 |
| Genre | : Hadron spectroscopy |
| ISBN | : |
Download Proceedings of the International Workshop on Tau-Charm Physics Book in PDF, ePub and Kindle
Searches for D0 - Anti-D0 Mixing, Rare Charm And Tau Decays
| Author | : |
| Publisher | : |
| Total Pages | : 4 |
| Release | : 2007 |
| Genre | : |
| ISBN | : |
Download Searches for D0 - Anti-D0 Mixing, Rare Charm And Tau Decays Book in PDF, ePub and Kindle
I discuss the results on D°-{bar D}° mixing through hadronic as well as semi-leptonic charm decays, rare flavor-changing neutral currents in the charm sector and the lepton flavor violating [tau] decaying to charged lighter leptons. The results from both BABAR and Belle are presented in this review.
Leptonic B Decays at BaBar
| Author | : |
| Publisher | : |
| Total Pages | : 4 |
| Release | : 2003 |
| Genre | : |
| ISBN | : |
Download Leptonic B Decays at BaBar Book in PDF, ePub and Kindle
The authors present results on searches for the rare B decays B° → ll− (l = e or?) and B+ → K+?{bar?} in?(4S) decays. The data used in these analyses were collected with the BABAR detector at the PEP-II e+e− storage ring during the years 2000 and 2001. The B° → l+l− search was performed using an integrated luminosity of 54.4 fb−1 accumulated at the?(4S) resonance (about 60 million B{bar B} pairs) while the B+ → K+?{bar?} search was performed with 50.7 fb−1 (about 56 million B{bar B} pairs). Both analyses use an additional 6.4 fb−1 of data accumulated about 40 MeV below resonance. They see no evidence for a signal in either the B → l+l− or B → K+{nu}{bar {nu}} decay modes and set the following upper limits at the 90% CL:?(B° → e+e−)
The Babar Physics Book
| Author | : Paul F. Harrison |
| Publisher | : |
| Total Pages | : 550 |
| Release | : 1998 |
| Genre | : CP violation (Nuclear physics) |
| ISBN | : |
Download The Babar Physics Book Book in PDF, ePub and Kindle
Rare Decays And Exotic States With BaBar
| Author | : S. H. Robertson |
| Publisher | : |
| Total Pages | : 12 |
| Release | : 2006 |
| Genre | : |
| ISBN | : |
Download Rare Decays And Exotic States With BaBar Book in PDF, ePub and Kindle
Results from the BABAR experiment are presented for searches for several rare FCNC B and D meson decays, including the modes B{sup 0} {yields} {ell}{sup +}{ell}{sup -} and D{sup 0} {yields} {ell}{sup +}{ell}{sup -}, B {yields} ({rho}, {omega}){gamma} and B{sup +} {yields} (K, {pi}){sup +}{nu}{bar {nu}}. Limits on lepton flavor violation in neutrino-less {tau} decays are also discussed. Finally, results of BABAR searches for the strange pentaquark states {Theta}{sup +}(1540), {Xi}{sup --}(1860) and {Xi}{sup 0}(1860) are summarized.
