Measurement Of Cp Violation Parameters With A Dalitz Plot Analysis Of B To D Pi Pi Pi0 K

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Measurement Of Cp Violation Parameters With A Dalitz Plot Analysis Of B To D Pi Pi Pi0 K

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of Cp Violation Parameters With A Dalitz Plot Analysis Of B To D Pi Pi Pi0 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 2007 with categories.

We report the results of a CP violation analysis of the decay B{sup {+-}} → D{sub??−?°}K{sup {+-}}, where D{sub?+?−?°} indicates a neutral D meson detected in the final state?+?−?°, excluding K{sub S}°?°. The analysis makes use of 324 million e+e− → B{bar B} events recorded by the BABAR experiment at the PEP-II e+e− storage ring. By analyzing the?+?−?° Dalitz plot distribution and the B{sup {+-}} → D{sub?+?−?°} K{sup {+-}} branching fraction and decay rate asymmetry, we calculate parameters related to the phase? of the CKM unitarity triangle. We also measure the magnitudes and phases of the components of the D° → {pi}+{pi}−{pi}° decay amplitude.

Nuclear Science Abstracts

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Author :
language : en
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Release Date : 1966

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 1966 with Nuclear energy categories.

Measurement Of Cp Parameters In B D Pi Pi Pi0 K And Study Of The X 3872 In B J Psi Pi Pi K With The Babar Detector

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Author : Frank Winklmeier
language : en
Publisher:
Release Date : 2006

Measurement Of Cp Parameters In B D Pi Pi Pi0 K And Study Of The X 3872 In B J Psi Pi Pi K With The Babar Detector written by Frank Winklmeier and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

This dissertation presents two analyses performed on data collected with the BABAR detector at the SLAC PEP-II e{sup +}e{sup -} asymmetric-energy B Factory. First, a Dalitz analysis is shown that performs the first measurement of CP violation parameters in the decay B{sup -} {yields} D{sub {pi}{sup +}{pi}{sup -}{pi}{sup 0}}K{sup -} using the decay rate asymmetry and D{sup 0} - {bar D}{sup 0} interference. The results can be used to further constrain the value of the CKM angle {gamma}. The second analysis studies the properties of the X(3872) in neutral and charged B {yields} J/{psi}{pi}{sup +}{pi}{sup -}K decays. Measurements of the branching ratio and mass are presented as well as the search for additional resonances at higher masses.

High Energy Physics Index

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Author :
language : en
Publisher:
Release Date : 1987

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 1987 with Particles (Nuclear physics) categories.

Measurement Of Cp Violating Asymmetries In The B0 To K K K0 Dalitz Plot

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Author : D. Dujmic
language : en
Publisher:
Release Date : 2006

Measurement Of Cp Violating Asymmetries In The B0 To K K K0 Dalitz Plot written by D. Dujmic and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

The authors present a preliminary measurement of CP-violation parameters in the decay B{sup 0} {yields} K{sup +}K{sup -}K{sup 0}, using approximately 347 million B{bar B} events collected by the BABAR detector at SLAC. Reconstructing the neutral kaon as K{sub S}{sup 0} {yields} {pi}{sup +}{pi}{sup -}, K{sub S}{sup 0} {yields} {pi}{sup 0}{pi}{sup 0}, or K{sub L}{sup 0}, they analyze the Dalitz plot distribution and measure fractions to intermediate states. They extract CP parameters from the asymmetries in amplitudes and phases between B{sup 0} and {bar B}{sup 0} decays across the Dalitz plot. For decays to {phi}K{sup 0}, they find {beta}{sub eff} = 0.06 {+-} 0.16 {+-} 0.05, A{sub CP} = -0.18 {+-} 0.20 {+-} 0.10, where the first uncertainty is statistical and the second one is systematic. For decays to f{sub 0}K{sup 0}, they find {beta}{sub eff} = 0.18 {+-} 0.19 {+-} 0.04, A{sub CP} = 0.45 {+-} 0.28 {+-} 0.10. Combining all K{sup +}K{sup -}K{sup 0} events and taking account of the different CP eigenvalues of the individual Dalitz plot components, they find {beta}{sub eff} = 0.361 {+-} 0.079 {+-} 0.037, A{sub CP} = -0.034 {+-} 0.079 {+-} 0.025. The trigonometric reflection at {pi}/2 - {beta}{sub eff} is disfavored at 4.6{sigma}. They also study angular distributions in B{sup 0} {yields} K{sup +}K{sup -}K{sub S}{sup 0} and B{sup +} {yields} {phi}K{sup +} decays and measure the direct CP asymmetry in B{sup +} {yields} {phi}K{sup +} decays, A{sub CP} = 0.046 {+-} 0.046 {+-} 0.017.

Science Citation Index

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Author :
language : en
Publisher:
Release Date : 1993

Science Citation 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 1993 with Science categories.

Vols. for 1964- have guides and journal lists.

Measurement Of Cp Violation In Neutral B Mesons Decaying To Phi K Short And Of Branching Fraction Of And Cp Violation In Neutral B Mesons Decaying To F0 980 K Short

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Author : Paul E. Kutter
language : en
Publisher:
Release Date : 2006

Measurement Of Cp Violation In Neutral B Mesons Decaying To Phi K Short And Of Branching Fraction Of And Cp Violation In Neutral B Mesons Decaying To F0 980 K Short written by Paul E. Kutter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with categories.

Study Of Cp Violation In Dalitz Plot Analyses Of B0 To K K Ks B To K K K And B To Ksksk

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language : en
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Release Date : 2012

Study Of Cp Violation In Dalitz Plot Analyses Of B0 To K K Ks B To K K K And B To Ksksk 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.

Measurement Of Cp Violating Asymmetries In B0 To Rho Pi 0 Using A Time Dependent Dalitz Plot Analysis

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of Cp Violating Asymmetries In B0 To Rho Pi 0 Using A Time Dependent Dalitz Plot Analysis 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.

We report a measurement of CP-violating asymmetries in B° → (??)° →??−?° decays using a time-dependent Dalitz plot analysis. The results are obtained from a data sample of 375 million?(4S) → B{bar B} decays, collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We measure 26 coefficients of the bilinear form-factor terms occurring in the time-dependent decay rate of the B° meson. We derive the physically relevant quantities from these coefficients. In particular, we measure a constraint on the angle? of the Unitarity Triangle.

Measurement Of Cp Violating Asymmetries In The B0 K K Ks Dalitz Plot

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Author :
language : en
Publisher:
Release Date : 2008

Measurement Of Cp Violating Asymmetries In The B0 K K Ks Dalitz Plot written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.

The authors present a preliminary measurement of CP-violation parameters in the decay B° → KK−K{sub S}°, using approximately 465 million B{bar B} events collected by the BABAR detector at SLAC. Reconstructing the neutral kaon as K{sub S}° →?+?− or K{sub S}° →?°?°, they analyze the Dalitz plot distribution and measure fractions to intermediate states. They extract CP parameters from the asymmetries in amplitudes and phases between B° and {bar B}° decays across the Dalitz plot. From a fit to the whole Dalitz plot, they measure?{sub eff} = 0.44 ± 0.07 ± 0.02, A{sub CP} = 0.03 ± 0.07 ± 0.02, where the first uncertainties are statistical and the second ones are systematic. For decays to?K{sub S}°, they measure?{sub eff} = 0.13 ± 0.13 ± 0.02, A{sub CP} = 0.14 ± 0.19 ± 0.02. For decays to f0K{sub S}°, they measure?{sub eff} = 0.15 ± 0.13 ± 0.03, A{sub CP} = 0.01 ± 0.26 ± 0.07. From a fit to the region of the Dalitz plot with m{sub K{sup +}K−}> 1.1 GeV/c2, they measure?{sub eff} = 0.52 ± 0.08 ± 0.03, A{sub CP} = 0.05 ± 0.09 ± 0.04.