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558 records were found.

Comment: 4 pages, 4 figures, Invited talk at the Workshop on the CKM Unitarity Triangle, IPPP Durham, April 2003 (eConf C0304052)
We present a method to measure the weak phase gamma in the three-body decay of charged B mesons to the final states D K pi0. These decays are mediated by interfering amplitudes which are color-allowed and hence relatively large. As a result, large CP violation effects that could be observed with high statistical significance are possible. In addition, the three-body decay helps resolve discrete ambiguities that are usually present in measurements of the weak phase. The experimental implications of conducting these measurements with three-body decays are discussed, and the sensitivity of the method is evaluated using a simulation.
Comment: LaTeX, 18 pages, 11 figures (not included, available upon request), talk given by B. Kayser at the Workshop on B Physics at Hadron Accelerators, Snowmass, Colorado, June 21-July 2, 1993, DAPNIA/SPP 93-23, NSF-PT-93-4, UdeM-LPN-TH-93-184
Comment: 8 pages (plain TeX), 1 figure (postscript file appended), DAPNIA/SPP 94-06, NSF-PT-94-2, UdeM-LPN-TH-94-189
Performing a global fit of the experimental branching ratios and CP asymmetries of the charmless B ! PV decays according to QCD factorization, we find it impossible to reach a satisfactory agreement, the confidence level (CL) of the best fit being smaller than 0.1%. The main reason for this failure is the difficulty to accomodate several large experimental branching ratios of the strange channels. Furthermore, experiment was not able to exclude a large direct CP asymmetry in $\overline {B°}\rightarrow gamma+pi−, which is predicted very small by QCD factorisation. Then, trying a fit with QCD factorisation complemented by a charming-penguin inspired model, we reach a best fit which is not excluded by experiment (CL of about 8%) but is not fully convincing. These negative results must be tempered by the remark that some of the experimenta...
Trying a global fit of the experimental branching ratios and CP-asymmetries of the charmless $B\to PV$ decays according to QCD factorization, we find it impossible to reach a satisfactory agreement, the confidence level (CL) of the best fit is smaller than .1 %. This failure reflects the difficulty to accommodate several large experimental branching ratios of the strange channels. Furthermore, experiment was not able to exclude a large direct CP asymmetry in $\bar {B}^0\to\rho^+ \pi^-$, which is predicted very small by QCD factorization. Proposing a fit with QCD factorization complemented by a charming-penguin inspired model we reach a best fit which is not excluded by experiment (CL of about 8 %) but is not fully convincing. These negative results must be tempered by the remark that some of the experimental data used are recent and mi...
Comment: 21 pages, 4 figures; several typos corrected, added one footnote and two references, comments added about PQCD. To appear in Phys.Rev. D
Comment: 8 pages, 2 figures (requires epsfig, psfrag),talk presented at the XXXVIIIth Rencontres de Moriond: Electroweak Interactions and Unified Theories,Les Arcs, France, March 15-22, 2003. To be published in the Proceedings
Comment: 8 pages LPTHE Orsay-94/53, Talk at Beauty 94 Workshop, april 94, Mont St Michel, France
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