Download or read book Observation of the Cabibbo suppressed Decay D Decays to Phi Pi written by Christos H. Georgiopoulos and published by . This book was released on 1987 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observations of New Cabibbo Suppressed Decays of the D Meson written by Scott Alan Plaetzer and published by . This book was released on 1985 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book First Observation of the Cabibbo suppressed Decays Xi c Sigma Pi Pi and Xi c Sigma Pi Pi and Measurement of Their Branching Ratios written by and published by . This book was released on 2008 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report the first observation of two Cabibbo-suppressed decay modes,?{sub c} →?+?−?+ and?{sub c}+ →?−?+?+. They observe 56 ± 13 over a background of 21, and 23 ± 7 over a background of 12 events, respectively, for the signals. The data were accumulated using the SELEX spectrometer during the 1996-1997 fixed target run at Fermilab, chiefly from a 600 GeV/c?− beam. The branching ratios of the decays relative to the Cabibbo-favored?{sub c}+ →?−?+?+ are measured to be B(?{sub c}+ →?+?−?+)/B(?{sub c}+ →?−?+?+) = 0.50 ± 0.20, and B(?{sub c}+ →?−?+?+)/B(?{sub c}+ →?−?+?+) = 0.23 ± 0.11, respectively. They also report branching ratios for the same decay modes of the?{sub c}+ relative to?{sub c}+ → pK−?+.
Download or read book Search for D bar D Mixing and a Measurement of the Doubly Cabibbo suppressed Decay Rate in D 2 K pi Decays written by and published by . This book was released on 2003 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for D sup 0 bar D sup 0 Mixing and a Measurement of the Doubly Cabibbo suppressed Decay Rate in D sup 0 yields K pi Decays 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 results of a search for D[sup 0]-[bar D][sup 0] mixing and a measurement of R[sub D], the ratio of doubly Cabibbo-suppressed decays to Cabibbo-favored decays, based on an analysis of D[sup 0][yields] K[sup+][pi][sup -] decays in 57.1 fb[sup -1] of data collected at or just below the[Upsilon](4S) resonance with the BABAR detector at the PEP-II collider. Our results are compatible with no mixing and no CP violation. At the 95% confidence level, allowing for CP violation, we find the mixing parameters x[prime][sup 2]
Download or read book First Observation of the Cabibbo Suppressed Decay B DK written by Abner Soffer and published by . This book was released on 1998 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of the Doubly and Singly Cabibbo Suppressed Decays D K Pi Pi and D s K Pi Pi in the FOCUS Experiment written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract Not Provided.
Download or read book Study of the Doubly and Singly Cabibbo Suppressed Decays D K Pi Pi and D s K Pi Pi in the FOCUS Experiment written by Laura Edera and published by . This book was released on 2005 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis illustrates a complete study of the doubly and singly Cabibbo suppressed decays D{sup +} and D{sub s}{sup +} {yields} K{sup +} {pi}{sup -}{pi}{sup +}. Data for this analysis have been collected by the fixed-target high-energy photoproduction experiment FOCUS at Fermilab. The authors have selected the D{sup +} and D{sub s}{sup +} samples with cuts to obtain a sufficiently high statistics, a good signal to noise ratio and, at the same time, eliminate possible contaminations from the more copious and favored decays. The D{sup +} yield consists of 189 {+-} 24 events, with a signal to noise ratio {approx} 1; the D{sub s}{sup +} yield is 567 {+-} 31 and the signal to noise ratio is {approx} 2.5. The authors have measured {Lambda}(D{sup +} {yields} K{sup +}{pi}{sup -}{pi}{sup +})/{Lambda}(D{sup +} {yields} K{sup -}{pi}{sup +}{pi}{sup +}) = 0.0065 {+-} 0.0008 {+-} 0.004 and {Lambda}(D{sub s}{sup +} {yields} K{sup +}{pi}{sup -}{pi}{sup +})/{Lambda}(D{sub s}{sup +} {yields} K{sup +}K{sup -}{pi}{sup +}) = 0.127 {+-} 0.007 {+-} 0.014, improving the previous determinations of a factor of 2 and 5, respectively. The author has also performed a Dalitz plot analysis for both decays. The amplitude analysis for D{sub s}{sup +} {yields} K{sup +}{pi}{sup -}{pi}{sup +} represents the first available measurement for this channel.
Download or read book Analysis of D0 K Pi Pi0 Decays written by Michael Galante Wilson and published by . This book was released on 2005 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analyzing D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} decays, herein are presented the methods and results of a search for D{sup 0}-{bar D}{sup 0} mixing, a measurement of the branching ratio R {equivalent_to} {Lambda}(D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0})/{Lambda}(D{sup 0} {yields} K{sup -}{pi}{sup +}{pi}{sup 0}), and measurements of the contributions from D{sup 0} {yields} K{sup +}{rho}{sup -}, K*{sup +}{pi}{sup -}, K*{sup 0}{pi}{sup 0}; 230.4 fb{sup -1} of data collected from the BABAR detector at the PEP-II collider during 2000-2004 (Runs 1-4) are analyzed. An event-level tagging technique is developed, which facilitates the accurate determination of doubly Cabibbo-suppressed resonance contributions by suppressing background from Cabibbo-favored decays. The branching ratio is measured as R = (0.214 {+-} 0.008 (stat) {+-} 0.008 (syst))%, with (46.1 {+-} 3.3 (stat) {+-} 2.9 (syst))% of D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} decays proceeding through the channel D{sup 0} {yields} K*{sup +}{pi}{sup -}. The data are consistent with the null-D-mixing hypothesis at a confidence level of 10%, and the expected value of {+-} {radical}(x{sup 2} + y{sup 2}) is measured as -0.013 {+-} 0.010 (stat), indicating negative interference between mixing and doubly Cabibbo-suppressed decay. The expected value of the integrated mixing rate is (x{sup 2} + y{sup 2})/2 = (0.013 {+-} 0.013 (stat))%.
Download or read book Studies of the Cabibbo Suppressed Decays D Pi0 Lepton Neutrino and D Eta E Electron neutrino written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Using 4.8 fb[sup -1] of data taken with the CLEO II detector, the branching fraction for the Cabibbo suppressed decay D[sup+][yields][pi][sup 0][ell][sup+][nu] measured relative to the Cabibbo favored decay D[sup+][yields][bar K][sup 0][ell][sup+][nu] is found to be 0.046[+-] 0.014[+-] 0.017. Using V[sub cs] and V[sub cd] from unitarity constraints, we determinef[sub+][sup[pi]](0)/f[sub+][sup K] (0)[sup 2]= 0.9[+-] 0.3[+-] 0.3 We also present a 90% confidence level upper limit for the branching ratio of the decay D[sup+][yields][eta]e[sup+][nu][sub e] relative to that for D[sup+][yields][pi][sup 0]e[sup+][nu][sub e] of 1.5.
Download or read book First Observation of the Cabibbo Suppressed Decay B Meson Going to D Meson Kaon written by Abner Soffer and published by . This book was released on 1998 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: We also present a review of the cosmological motivation and particle physics aspects of CP-violation measurements, intended for the non-physicist.
Download or read book High Energy Physics Index written by and published by . This book was released on 1993 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observation of Cabibbo Suppressed Beta Delta Kappa Decays at Belle written by BELLE and published by . This book was released on 2000 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A study of cabibbo suppressed DO decays D decays written by Deutsches Elektronen-Synchrotron (Hamburg). and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preliminary Results on the Decays D sup yields K sup pi sup pi sup minus D sup yields K sup K sup K sup written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Preliminary results on the Doubly Cabibbo Suppressed Decays (DCSD) D[sup +] [yields] K[sup +][pi][sup +][pi][sup [minus]] and D[sup +] [yields] K[sup +]K[sup +]K[sup [minus]] from roughly 40% of the E791 data set are summarized. The authors present an analysis of candidate events from E791 data in these decay modes. They show that there is a clear signal in the D[sup +] [yields] K[sup +][pi][sup +][pi][sup [minus]] mode and discuss backgrounds and sources of error in the results. They disagree with a published signal level in the D[sup +] [yields] K[sup +]K[sup +]K[sup [minus]] mode.
Download or read book Doubly Cabibbo Suppressed Decays of the Charged D Meson written by James Stephen Wiener and published by . This book was released on 1994 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1986 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt:
