Download or read book PRELIMINARY STUDY OF D0 K PI PI0 DECAYS WITH DALITZ PLOTS written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle physicists study the smallest particles and most basic rules of their interactions in humankind's current scope. The Charm Analysis Working Group (CWG) of the BaBar Collaboration studies decays involving the charm quark. They currently study mixing in D decays, an interesting and poorly understood phenomenon in current physics models. We, as part of the CWG, investigated the plausibility of using Dalitz plots and the BaBar analysis framework to study mixing in Wrong Sign (WS) D[sup 0][yields] K[pi][pi][sup 0] decays. Others in the CWG have studied mixing in the 2-body decay, D[sup 0][yields] K[pi]. The 3-body decay analyzed with the RooFitDalitz analysis package and Dalitz plots provides more information and another way of separating Doubly Cabibbo Suppressed Decays (DCSD) from mixing--which share the same end products. Through doing many simulations, we have demonstrated the usefulness of this approach. We selected D[sup 0][yields] K[pi][pi][sup 0] events from Simulation Production run No. 4 (SP4) and BaBar's run 1 and run 2. We made Dalitz plots with this data. Now that we better understand Dalitz plots and software, we plan to select WS D[sup 0][yields] K[pi][pi][sup 0] events and perform rate fits as discussed in BaBar Analysis Document (BAD) No. 443, as well as fits for several different decay times and resonances, in order to further distinguish DCSD from mixing.

Download or read book Study of the D0 to Pi Pi Pi0 Decay at BaBar written by and published by . This book was released on 2012 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Dalitz-plot of the decay D° →??−?° measured by the BABAR collaboration shows the structure of a final state having quantum numbers I{sup G}J{sup PC} = 0−02−. An isospin analysis of this Dalitz-plot finds that the fraction of the I = 0 contribution is about 96%. This high I = 0 contribution is unexpected because the weak interaction violates the isospin.

Download or read book Dalitz Plot Analysis of D0 Hadronic Decays D0 K0K pi D0 antiK0K pi and D0 antiK0K K written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Dalitz plot analysis of the D° hadronic decays D° → K°K−?, D° → {bar K}° K+?− and D° → {bar K}° K+ K− is presented. This analysis is based on a data sample of 22 fb−1 collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC running on or near the?(4S) resonance. The events are selected from continuum e+e− annihilations using the decay D*+ → D°?+. Preliminary measurements of the branching fractions of the above hadronic decays are obtained. Preliminary estimates of fractions and phases for resonant and nonresonant contributions to the Dalitz plot are also presented.

Download or read book B0 K Pi Pi0 Dalitz Plot Analysis written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present preliminary results on the Dalitz plot analysis of B° --> K?−?° decays. The data sample comprises 213 million?(4S) --> B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. They report measurements of the inclusive branching fraction, quasi-two-body fractions and CP-violating charge asymmetries for intermediate states including K*(892)+?− and?(770)−K+. Observations of B° decays to the K?S-wave intermediate states, K0*(1430)+?− and K0*(1430)°?°, are reported. Evidence of the decay B° --> K*(892)°?° is seen. They set upper limits at 90% confidence level on branching fractions of the nonresonant and other less significant intermediate states.

Download or read book Dalitz plot Analysis of B0 Anti D0 Pi Pi written by and published by . This book was released on 2010 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report preliminary results from a study of the decay B° → {bar D}°??− using a data sample of 470.9 ± 2.8 million B{bar B} events collected with the BABAR detector at the?(4S) resonance. Using the Dalitz-plot analysis technique, they find contributions from the intermediate resonances D*2(2460)−, D*0(2400)−,?(770)° and f2(1270) as well as a?+?− S-wave term, a {bar D}°?− nonresonant S-wave term and a virtual D*(2010) amplitude. They measure the branching fractions of the contributing decays.

Download or read book Empirical Parameterization of the K to Pi Pi0 Pi0 Decay Dalitz Plot written by and published by . This book was released on 2013 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of the Decay K sup 0 sub L Pi E Nu written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are reported from a Dalitz plot analysis of 17750 K/sup 0//sub e3/ candidates obtained in an experiment designed to study both the semileptonic and 3.pi. decay modes of the K/sup 0//sub L/ with high efficiency across the Dalitz plot.

Download or read book Dalitz Plot Analysis of the Decay B0 B0bar to K Pi Pi0 written by and published by . This book was released on 2008 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report a Dalitz-plot analysis of the charmless hadronic decays of neutral B mesons to K{sup ±}?{sup {-+}}?°. With a sample of (231.8 ± 2.6) x 106?(4S) → B{bar B} decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC, they measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes for B° and {bar B}° decays and determine the corresponding CP-averaged branching fractions and charge asymmetries. The inclusive branching fraction and CP-violating charge asymmetry are measured to be?(B° → K?−?°) = (35.7{sub -1.5}{sup +2.6} ± 2.2) x 10−6, and?{sub CP} = -0.030{sub -0.051}{sup +0.045} ± 0.055 where the first errors are statistical and the second systematic. They observe the decay B° → K*°(892)?° with the branching fraction?(B° → K*°(892)?°) = (3.6{sub -0.8}{sup +0.7} ± 0.4) x 10−6. This measurement differs from zero by 5.6 standard deviations (including the systematic uncertainties). The selected sample also contains B° → {bar D}°?° decays where {bar D}° → K+?−, and they measure?(B° → {bar D}°?°) = (2.93 ± 0.17 {+-} 0.18) x 10−4.

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 Study of the Decay K written by and published by . This book was released on 1976 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are reported from a Dalitz plot analysis of 17750 K°/sub e3/ candidates obtained in an experiment designed to study both the semileptonic and 3.pi. decay modes of the K°/sub L/ with high efficiency across the Dalitz plot.

Download or read book Dalitz Plot Analysis of B 0 d to K pi pi 0 Decays written by Zhitang Yu and published by . This book was released on 2006 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes a Dalitz plot analysis of B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} decays. The data sample comprises 213 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at the Stanford Linear Accelerator Center in California (SLAC). Preliminary results are presented for measurements of the inclusive branching fraction, quasi-two-body fractions and CP-violating charge asymmetries for intermediate states including K*(892){sup +}{pi}{sup -} and {rho}(770){sup -}K{sup +}. Observations of B{sup 0} decays to the K{pi} S-wave intermediate states, K*{sub 0}(1430){sup +}{pi}{sup -} and K*{sub 0}(1430){sup 0}{pi}{sup 0}, are reported. Evidence of the decay B{sup 0} {yields} K*(892){sup 0}{pi}{sup 0} is seen. We set upper limits at 90% confidence level on branching fractions of the nonresonant and other less significant intermediate states.

Download or read book Dalitz Plot Analysis of the Decay D K pi pi written by Daniel Podolsky and published by . This book was released on 1998 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Measurement of the Strong Phase Delta kaon Pion Through the Decay of Quantum correlated Neutral D anti D Meson Pairs written by Eric Justin White and published by ProQuest. This book was released on 2008 with total page 125 pages. Available in PDF, EPUB and Kindle. Book excerpt: We exploit quantum correlations in coherent D 0D0 pairs produced at the psi(3770) resonance to measure the strong phase difference deltaKpi between D0 → K+pi- and D 0 → K-pi+ decays. Using 818 pb-1 of e+e- collisions collected by the CLEO-c detector, we report a measurement of deltaKpi extracted from a Dalitz plot fit of KSpi+pi- in the joint decay D0,D0 → K+/-pi∓, KSpi +pi-. We find a preliminary result of deltaKpi = (32.1 +/- 21.6 +/- 12)°, where the first error is statistical and the second is systematic.

Download or read book Dalitz Analysis of Ds K K Pi written by and published by . This book was released on 2011 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: We perform a Dalitz plot analysis of about 100,000 D{sub s}+ decays to K+K−?+ and measure the complex amplitudes of the intermediate resonances which contribute to this decay mode. We also measure the relative branching fractions of D{sub s}+ → K+K+?− and D{sub s}+ → K+K+K−. For this analysis we use a 384 fb−1 data sample, recorded by the BABAR detector at the PEP-II asymmetric-energy e+e− collider running at center-of-mass energies near 10.58 GeV.

Download or read book First Observation of the Charmless Decay B to K pi 0 pi 0 and Study of Its Dalitz Plot Structure written by and published by . This book was released on 2012 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results for the first measurement of the inclusive branching and CP asymmetry of the charmless 3-body decay B+ → K+[pi]0[pi]0 are presented. The analysis uses a data sample with an integrated luminosity of 429.0 fb-1, recorded by the BABAR detector at the PEP-II asymmetric B Factory. This sample corresponds to 470.9 ±} 2.8 million B$\bar{B}$ pairs. Measurements of the branching fractions (B) and CP asymmetries (ACP) of some of the intermediate resonances in the K+[pi]0[pi]0 Dalitz plot are also presented.

Download or read book An Experimental Study of the Decay D0 K K K pi written by Shiral C. Devmal and published by . This book was released on 2000 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Study of K Decays Into Three Pions written by Anatol Zinchenko and published by . This book was released on 1960 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: