Measurement Of Mixing And Cp Violation In The Two Body D0 Decays To K K Pi Pi And K Pi With The Babar Experiment

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Measurement Of Mixing And Cp Violation In The Two Body D0 Decays To Kk Pipi And Kpi With The Babar Experiment

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Author :
language : en
Publisher:
Release Date : 2012

Measurement Of Mixing And Cp Violation In The Two Body D0 Decays To Kk Pipi And Kpi With The Babar Experiment 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.

In this thesis we present the measurement of D0 - $\bar{D}$0 mixing parameter yCP using the full BABAR data sample. We also searched for CP violation in the D0 → K+K-, [pi]+[pi]- channels, finding the parameter [Delta]Y compatible with zero. In Chapter 1, we briefly review the SM and introduce the theoretical framework of neutral meson mixing and CP violation. The BABAR detector and the performance of each sub-detector are described in Chapter 2. In Chapter 3, we present an overview of the analysis including a brief description of the previous similar BABAR analyses and the expected improvements in the present analysis. The candidate reconstruction and selection are described in Chapter 4, together with the optimization of the signal region. The signal and background event classes are described in Chapter 5, where we also provide the probability density functions used to extract the mixing and CP violating parameter. In Chapter 6 we describe the various crosschecks performed to validate the analysis and the evaluation of the systematic error. Finally in Chapter 7 we present the final results and their interpretation.

High Energy Physics

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Author :
language : en
Publisher: World Scientific
Release Date : 1981

High Energy Physics written by and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with categories.

Measurement Of Mixing And Cp Violation In The Two Body D0 Decays To K K Pi Pi And K Pi With The Babar Experiment

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Author : Giulia Casarosa
language : en
Publisher:
Release Date : 2012

Measurement Of Mixing And Cp Violation In The Two Body D0 Decays To K K Pi Pi And K Pi With The Babar Experiment written by Giulia Casarosa 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.

Searches For New Physics In Cp Violation From Babar

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Author :
language : en
Publisher:
Release Date : 2015

Searches For New Physics In Cp Violation From 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 2015 with categories.

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].

Gautschlieder

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Author :
language : en
Publisher:
Release Date : 1922

Gautschlieder written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1922 with categories.

Deutsche Grundkarte

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Author :
language : en
Publisher:
Release Date : 1989

Deutsche Grundkarte written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.

Search For Cp Violation In B Pi H Decays And B Rho H Decays With Babar Experiment

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Author : C. Yeche
language : en
Publisher:
Release Date : 2003

Search For Cp Violation In B Pi H Decays And B Rho H Decays With Babar Experiment written by C. Yeche 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.

The authors present BABAR experiment studies to observe CP violation in the two-body decays ({pi}K and {pi}{pi}) and the quasi two-body decays ({rho}K and {rho}{pi}) of B mesons. The results are obtained from data samples of about 89(123) million {Upsilon}(4S) {yields} B{bar B} decays collected between 1999 and 2002(2003) with the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC.

Babar Explores Cp Violation

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Author :
language : en
Publisher:
Release Date : 2003

Babar Explores Cp Violation 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.

The most recent results obtained by the BABAR experiment at the PEP-II asymmetric-energy B Factory at SLAC on CP-violating asymmetries and branching fractions for neutral and charged B decays are presented here. The analysis was performed on a data sample of[approx] 88 million[Upsilon](4S)[yields] B[bar B] decays collected between 1999 and 2002. Using b[yields] c[bar c]s decays, we measure sin2[beta]= 0.741[+-] 0.067(stat)[+-] 0.034(syst). We also present sin2[beta] measurements from, b[yields] s[bar s]s and b[yields] c[bar c]d processes. From neutral B meson decays to two-body final states of charged pions and kaons, we derive for the CP violating parameters, S[sub[pi][pi]]= 0.02[+-] 0.34[+-] 0.05[-0.54,+0.58] and C[sub[pi][pi]]= -0.30[+-] 0.25[+-] 0.04[-0.72,+0.12]. First results for B[yields][pi][sup+][pi][sup -][pi][sup 0] and K[sup[+-]][pi][sup[-+]][pi][sup 0] final states dominated by the[rho][sup[+-]] resonance, are also presented.

Cp Violation Mixing And Lifetime Results From Babar

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Author :
language : en
Publisher:
Release Date : 2003

Cp Violation Mixing And Lifetime Results From 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 2003 with categories.

The BABAR collaboration has analyzed 60M B[bar B] pairs collected at the[Upsilon](4S) resonance at the PEP II asymmetric collider at SLAC. Using this data sample they have measured the CP violation parameters sin(2[beta])= 0.75[+-] 0.09[sub STAT][+-] 0.04[sub SYST] and[lambda]= 0.92[+-] 0.06[sub STAT][+-] 0.02[sub SYST] from B[sup 0][yields] c[bar c]+ K[sup 0(*)]+ c.c. decays. From charmless 2-body B decays they measure A[sub K[pi]]= -0.05[+-] 0.06[+-] 0.01( -0.14,+0.05), S[sub[pi][pi]]= -0.01[+-] 0.37[+-] 0.07( -0.66,+0.62), C[sub[pi][pi]]= -0.02[+-] 0.29[+-] 0.07( -0.54,+0.48). A number of B lifetime and mixing parameters, extracted from subsamples of this data set, are also presented.

Limits On D0 Anti D0 Mixing And Cp Violation From The Ratio Of Lifetimes For Decay To K Pi K K And Pi Pi

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Author :
language : en
Publisher:
Release Date : 2003

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 has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

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.))%.