Preliminary Study Of D0 K Pi Pi0 Decays With Dalitz Plots

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Preliminary Study Of D0 K Pi Pi0 Decays With Dalitz Plots

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Author :
language : en
Publisher:
Release Date : 2003

Preliminary Study Of D0 K Pi Pi0 Decays With Dalitz Plots written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

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.

Nuclear Science Abstracts

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language : en
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Release Date : 1975-05

Nuclear Science Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975-05 with Nuclear energy categories.

High Energy Physics Index

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language : en
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Release Date : 1986

High Energy Physics Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Nuclear physics categories.

Bibliografia Brasileira De F Sica

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language : en
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Release Date : 1978

Bibliografia Brasileira De F Sica written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Physics categories.

Conference Papers Index

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language : en
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Release Date : 1978

Conference Papers Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978 with Engineering categories.

Monthly. Papers presented at recent meeting held all over the world by scientific, technical, engineering and medical groups. Sources are meeting programs and abstract publications, as well as questionnaires. Arranged under 17 subject sections, 7 of direct interest to the life scientist. Full programs of meetings listed under sections. Entry gives citation number, paper title, name, mailing address, and any ordering number assigned. Quarterly and annual indexes to subjects, authors, and programs (not available in monthly issues).

Dalitz Plot Analysis Of D0 Hadronic Decays D0 K0k Pi D0 Antik0k Pi And D0 Antik0k K

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language : en
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Release Date : 2002

Dalitz Plot Analysis Of D0 Hadronic Decays D0 K0k Pi D0 Antik0k Pi And D0 Antik0k K written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

A Dalitz plot analysis of the D[sup 0] hadronic decays D[sup 0][yields] K[sup 0]K[sup -][pi][sup+], D[sup 0][yields][bar K][sup 0] K[sup+][pi][sup -] and D[sup 0][yields][bar K][sup 0] K[sup+] K[sup -] is presented. This analysis is based on a data sample of 22 fb[sup -1] collected with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC running on or near the[Upsilon](4S) resonance. The events are selected from continuum e[sup+]e[sup -] annihilations using the decay D*[sup+][yields] D[sup 0][pi][sup+]. 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.

Dalitz Plot Analysis Of B0 Anti D0 Pi Pi

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Author :
language : en
Publisher:
Release Date : 2010

Dalitz Plot Analysis Of B0 Anti D0 Pi Pi written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

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.

Study Of The D0 To Pi Pi Pi0 Decay At Babar

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language : en
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Release Date : 2012

Study Of The D0 To Pi Pi Pi0 Decay At Babar written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.

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.

Study Of The Decay K Sup 0 Sub L Pi E Nu

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language : en
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Release Date : 1976

Study Of The Decay K Sup 0 Sub L Pi E Nu written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1976 with categories.

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.

Dalitz Analysis Of D0 To K 0 Atop S Pi Pi And Measurement Of The Ckm Angle Gamma A In Charged B Decays To D K Decays

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Author :
language : en
Publisher:
Release Date : 2007

Dalitz Analysis Of D0 To K 0 Atop S Pi Pi And Measurement Of The Ckm Angle Gamma A In Charged B Decays To D K Decays written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with categories.

Despite more than thirty years having elapsed since the discovery of CP violation, our understanding about the source and the nature of this phenomenon is still very limited. In the standard model of particle physics, CP violation is due to the presence of an non-irreducible weak phase in the Cabibbo-Kabayashi-Maskawa(CKM) matrix. Up to now, all the experimental results are in good agreement with the standard model. However, it is important for us to over-constrain the CKM quark-mixing matrix and explore the possibility of new physics beyond the standard model. The B meson provides an ideal place to measure CP violation due to its heavy mass and potentially large CP-violating effects. In particular, the angle [gamma] of the Unitary Triangle relating the elements of the CKM matrix is extremely crucial in terms of CP violation and constraints on the new physics models. Various methods using B- → D0K- decays have been proposed to measure based on the interference between the Vcb and Vub amplitudes. Despite the simple concept, the measurement turns out to be experimentally challenging due to the small branching fraction and the small value of [tau]B, the amplitude ratio between the two contributing Feynman diagrams. In this thesis a novel technique to measure [gamma] in B- → D(*) K- decay using a Dalitz plot analysis of D0 → K{sub s}[pi]+[pi]- is presented. Until the turn on of LHC b [1] later in the decade, this remains the most promising method to measure [gamma]. This thesis is roughly separated into two parts. The first part involves a study of hadron spectroscopy and the Dalitz plot analysis of the D0→ K$0\atop{S}$[pi]+[pi]-. The second part of the thesis involves the measurement of [gamma] in B- → D(*) K- using the results of the D0 → K$0\atop{S}$[pi]+[pi]- dalitz plot analysis.