Download or read book D0 Anti D0 Mixing at BaBar written by and published by . This book was released on 2007 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The BABAR and Belle collaborations have recently found evidence for mixing within the D meson system. We present some of the mixing search techniques used by BABAR and their status as of the beginning of the summer 2007. These have culminated in a measurement in the K[pi] decay final state of the D that is inconsistent with the no-mixing hypothesis with a significance of 3.9 standard deviations.
Download or read book Recent Results on D0 Anti D0 Mixing from BaBar and Belle written by and published by . This book was released on 2013 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evidence for D0 Anti D0 Mixing at Babar written by and published by . This book was released on 2007 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book D0 Anti D0 Mixing Results From BaBar with D0 to K Pi Pi0 written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary search for D°-{bar D}° mixing using the decays D° → K?−?°, additionally presenting Dalitz-plot distributions and a measurement of the branching ratio for this mode. A new tagging technique is used to produce the doubly Cabibbo-suppressed Dalitz plot, which in turn is used to motivate the method used for the D-mixing search. We analyze 230.4 fb−1 of data collected from the BABAR detector at the PEP-II collider. Assuming CP conservation, we find R{sub M}
Download or read book D0 Anti D0 Mixing And Search for CP Violation in D0 Decays Using T Odd Correlations at BaBar written by and published by . This book was released on 2013 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for D0 anti D0 Mixing with the BaBar Experiment written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The results of searches for D°-{bar D}° mixing in the decays D° → K?−?° and D° → K+?−?+?−, using 230 fb−1 of e+e− collisions collected from the BABAR detector at the PEP-II storage ring at SLAC, are presented. The combination of results from these analyses yields a value for the time-integrated mixing rate R{sub M} = (0.020{sub -0.010}{sup +0.011}(stat.))%, and an upper limit R{sub M}
Download or read book D0 Anti D0 Mixing Results From BaBar By Analysis of D0 K Pi Pi0 Dalitz Plot Regions written by M. G. Wilson and published by . This book was released on 2006 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a preliminary search for D{sup 0}-{bar D}{sup 0} mixing using the decays D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0}, additionally presenting Dalitz-plot distributions and a measurement of the branching ratio for this mode. A new tagging technique is used to produce the doubly Cabibbo-suppressed Dalitz plot, which in turn is used to motivate the method used for the D-mixing search. We analyze 230.4 fb{sup -1} of data collected from the BABAR detector at the PEP-II collider. Assuming CP conservation, we find R{sub M}
Download or read book D0 D0bar Mixing written by and published by . This book was released on 2011 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, the B factory experiments BABAR and Belle as well as the CDF collaboration found evidence for mixing in the D meson system. The current status (beginning of summer 2008) of the experimental results of D° mixing is summarized. In this paper, we present an overview of D° mixing. After an introduction to the charm mixing phenomenology and analysis techniques, results of the mixing parameters and CP violation as related to mixing are summarized. They are obtained from hadronic two-body, multi-body final states and from quantum correlated D° decays of the experiments BABAR, Belle, Cleo and CDF. Mixing results from semileptonic D° decays can be found elsewhere.
Download or read book Search for D0 anti D0 Mixing in the Decays D0 K Pi Pi Pi written by B. Aubert and published by . This book was released on 2006 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a search for D{sup 0}-{bar D}{sup 0} mixing in the decays D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup +}{pi}{sup -} using 230.4 fb{sup -1} of data collected with the BABAR detector at the PEP-II e{sup +}e{sup -} collider at SLAC. Assuming CP conservation, we measure the time-integrated mixing rate R{sub M} = (0.019{sub -0.015}{sup +0.016}(stat.) {+-} 0.002(syst.))%, and R{sub M}
Download or read book Search for D0 Anti D0 Mixing Using Semileptonic Decays written by K. T. Flood and published by . This book was released on 2005 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on an 87-fb{sup -1} dataset collected by the Babar detector at the PEP-II asymmetric-energy B-Factory, a search for D{sup 0}-{bar D}{sup 0} mixing has been made using the semileptonic decay modes D*{sup +} {yields} {pi}{sup +}D{sup 0}, D{sup 0} {yields} Ke{nu} (+c.c.). The use of these modes allows unambiguous flavor tagging and a combined fit of the D{sup 0} decay time and D*{sup +}-D{sup 0} mass difference ({Delta}M) distributions. The high-statistics sample of unmixed semileptonic D{sup 0} decays is used to model the {Delta}M distribution and time-dependence of mixed events directly from the data. Neural networks are used to select events and reconstruct the D{sup 0}. A result consistent with no charm mixing has been obtained, R{sub mix} = 0.0023 {+-} 0.0012 {+-} 0.0004. This corresponds to an upper limit of R{sub mix}
Download or read book Limits on D0 Anti D0 Mixing and CP Violation from the Ratio of Lifetimes for Decay to K Pi K K and Pi Pi written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a measurement of D[sup 0]-[bar D][sup 0] mixing parameters using the ratios of lifetimes extracted from samples of D[sup 0] mesons decaying to K[sup -][pi][sup+], K[sup -]K[sup+], and[pi][sup -][pi][sup+]. Using 91 fb[sup -1] of data collected by the BABAR detector at the PEP-II asymmetric-energy B Factory, we obtain a value Y= (0.8[+-] 0.4(stat.)[sub -0.4][sup+0.5](syst.))%, which, in the limit of CP conservation, corresponds to the mixing parameter y=[Delta][Lambda]/2[Lambda]. Using the difference in lifetimes of D[sup 0] and[bar D][sup 0] mesons, we obtain the CP-violation parameter[Delta][Lambda]= ( -0.8[+-] 0.6(stat.)[+-] 0.2(syst.))%.
Download or read book Searches for New Physics in CP Violation from BaBar written by and published by . This book was released on 2015 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of recent searches for new physics in CP violation in charm decays from the BABAR experiment are presented. These results include a measurement of D0 - anti D0 mixing and searches for CP violation in two-body D0 decays, a search for CP violation in the charm decays D" 2!KS0K " and D s" 2!KS0K", KS0[pi]", and a search for direct CP violation in the singly-Cabibbo suppressed D" 2!K+K-[pi]"decays. These studies are based on the fi nal dataset collected by BABAR at the PEP-II B factory at SLAC in the period 1999-2008. No evidence of CP violation is found in these charm decays. The measured mixing parameter yCP = [0.72 " 0.18(stat) " 0.12(syst)]% excludes the no-mixing null hypothesis with a signifi cance of 3.3[sigma].
Download or read book Search for D0 Anti D0 Mixing and Branching Ratio Measurement in the Decay D0 to K Pi Pi0 written by and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a search for D°-{bar D}° mixing using regions of phase space in which the rate of doubly Cabibbo-suppressed decays D° → K+?−?° relative to Cabibbo-favored decays D° → K− ?+?° is reduced. They analyze 230.4 fb−1 of data collected with the BABAR detector at the PEP-II e+e− collider at SLAC. They present results with and without the assumption of CP conservation. Assuming CP conservation, they measure the time-integrated mixing rate R{sub M} = (0.023{sub -0.014}{sup +0.018}(stat.) ± 0.004(syst.))%, and R{sub M}
Download or read book Searches for Direct CP Violation in D Decays And for D0 Anti D0 Mixing written by M. V. Purohit and published by . This book was released on 2005 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present preliminary results of a search for direct CP violation in D{sup +} {yields} K{sup +}K{sup -} {pi}{sup +} decays using 87 fb{sup -1} of data acquired by the Babar experiment running on and near the {Upsilon}(4S) from 1999-2002. The authors report the asymmetries in the signal mode and in the main resonant subchannels. Based on the same dataset, they also report a new 90% CL upper limit of 0.0042 on the rate of D{sup 0}-{bar D}{sup 0} mixing using the decay modes D*{sup +} {yields} D{sup 0}{pi}{sup +}, D{sup 0} {yields} [K/K*]ev (+c.c.).
Download or read book Flavor Physics and the TeV Scale written by George W. S. Hou and published by Springer. This book was released on 2019-02-26 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of this monograph discusses the usefulness of heavy flavor as a probe of TeV-scale physics, exploring a number of recently-uncovered “flavor anomalies” that are suggestive of possible TeV-scale phenomena. The large human endeavor at the Large Hadron Collider has not turned up any New Physics, except the last particle of the Standard Model, the Higgs boson. Revised and updated throughout, this book puts the first results from the LHC into perspective and provides an outlook for a new era of flavor physics. The author readdresses many questions raised in the first edition and poses new ones. As before, the experimental perspective is taken, with a focus on processes, rather than theories or models, as a basis for exploration, and two-thirds of the book is concerned with b -^ s or bs sb transitions. In the face of the advent of Belle II and other flavor experiments, this book becomes a part of a dialogue between the energy/collider and intensity/flavor frontiers that will continue over the coming decade. Researchers with an interest in modern particle physics will find this book particularly valuable.
Download or read book Searches for D0 Anti D0 Mixing Rare Charm And Tau Decays written by and published by . This book was released on 2007 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Search for D0D0 Mixing with the Babar Detector Using the Hadronic Decay D0 yields K pi and Measurement of the Doubly Cabibbo Suppressed Decay Rate of D0 yields K pi written by Massimiliano Turri and published by . This book was released on 2001 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:
