Measurements Of The Branching Fraction And Time Dependent Cp Asymmetries Of B0 To J Psi Pi0 Decays

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Measurements Of The Branching Fraction And Time Dependent Cp Asymmetries Of B0 To J Psi Pi0 Decays

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Author : B. Aubert
language : en
Publisher:
Release Date : 2005

Measurements Of The Branching Fraction And Time Dependent Cp Asymmetries Of B0 To J Psi Pi0 Decays written by B. Aubert and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with categories.

The authors present measurements of the branching fraction and time-dependent CP asymmetries in B{sup 0} {yields} J/{psi} {pi}{sup 0} decays based on (231.8 {+-} 2.6) x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC during the years 1999-2004. We obtain a branching fraction {Beta}(B{sup 0} {yields} J/{psi}{pi}{sup 0}) = (1.94 {+-} 0.22 (stat) {+-} 0.17 (syst)) x 10{sup -5}. They also measure the CP asymmetry parameters C = -0.21 {+-} 0.26 (stat) {+-} 0.09 (syst) and S = -0.68 {+-} 0.30 (stat) {+-} 0.04 (syst). All results presented in this paper are preliminary.

Measurements Of The Branching Fraction And Time Dependent Cp Asymmetries Of B0 To J Psi Pi0 Decays

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Author : K. George
language : en
Publisher:
Release Date : 2006

Measurements Of The Branching Fraction And Time Dependent Cp Asymmetries Of B0 To J Psi Pi0 Decays written by K. George 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.

We present measurements of the branching fraction and time-dependent CP asymmetries in B{sup 0} {yields} J/{psi}{pi}{sup 0} decays based on (231.8 {+-} 2.6) x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We obtain a branching fraction {Beta}(B{sup 0} {yields} J/{psi}{pi}{sup 0}) = (1.94 {+-} 0.22 (stat) {+-} 0.17 (syst)) x 10{sup -5}. We also measure the CP asymmetry parameters C = -0.21 {+-} 0.26 (stat) {+-} 0.06 (syst) and S = -0.68 {+-} 0.30 (stat) {+-} 0.04 (syst).

Branching Fraction And Time Dependent Cp Asymmetry In Neutral B Decays To Psi And A Neutral Pion

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Author :
language : en
Publisher:
Release Date : 2003

Branching Fraction And Time Dependent Cp Asymmetry In Neutral B Decays To Psi And A Neutral Pion 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 invariance of physical laws under the combination of exchange of particles with antiparticles (charge conjugation, C) and reversal of coordinates (parity, P) is called CP symmetry. The violation of CP symmetry was first discovered in 1964 in the neutral kaon system, and is in general one of the great puzzles of particle physics. The recent observation of CP violation in the B meson system has been a simultaneous success for model predictions and experiment. The opportunity now exists to probe details of the underlying mechanisms. This thesis presents measurements of the branching fraction and time-dependent CP-violating asymmetry in neutral B decays to J/[psi][pi]°. The decay amplitude for this channel features both tree and penguin diagram contributions, the interference of which can yield a result for the asymmetry differing from that found in the ''golden mode'' B° 2!J/[psi] K{sub s}°. Using the measured branching fraction and CP asymmetry, constraints are placed on the ratio of penguin to tree amplitudes in B° 2!J/[psi][pi]°. In addition, the impact on the CP asymmetry measurement in B° 2!J/[psi] K{sub s}° is discussed. The results are presented for ee− annihilation data collected with the BABAR detector on the [Upsilon](4S) resonance at the PEP-II asymmetric-energy B Factory at SLAC. The measurement of the branching fraction, based on about 23 million B{bar B} pairs collected between October 1999 and October 2000, yields BF(B° 2!J/[psi][pi]°) = (2.0 ± 0.6 (stat) ± 0.2(syst)) x 10−5. With about 88 million B{bar B} pairs collected during the years 1999-2002, our results for the coefficients of the cosine and sine terms of the CP asymmetry are C{sub J/{psi}[pi]°} = 0.38 ± 0.41 (stat) ± 0.09 (syst) and S{sub J/{psi}[pi]°} = 0.05 ± 0.49 (stat) ± 0.16 (syst).

High Energy Physics Index

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Author :
language : en
Publisher:
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.

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D D K0s Decays At The Belle Experiment

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Author : Martin Ritter
language : en
Publisher:
Release Date : 2013

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D D K0s Decays At The Belle Experiment written by Martin Ritter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

Branching Fraction And Time Dependent Cp Asymmetry In Neutral B Decays To Psi And A Neutral Pion

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Author : Aron L. Soha
language : en
Publisher:
Release Date : 2003

Branching Fraction And Time Dependent Cp Asymmetry In Neutral B Decays To Psi And A Neutral Pion written by Aron L. Soha 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.

Science Citation Index

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Author :
language : en
Publisher:
Release Date : 1992

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 1992 with Science categories.

Vols. for 1964- have guides and journal lists.

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D Stern S Decays At The Belle Experiment

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Author : Martin Ritter
language : en
Publisher:
Release Date : 2013

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D Stern S Decays At The Belle Experiment written by Martin Ritter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with categories.

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D D K0s Decays At The Belle Experiment

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Author : Martin Ritter
language : en
Publisher:
Release Date : 2014

Measurement Of The Branching Fraction And Time Dependent Cp Asymmetry In B0 D D K0s Decays At The Belle Experiment written by Martin Ritter and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.

Measurement Of Branching Fractions And Cp Asymmetries In B Wk Decays And First Observation Of The B0 Psi 2s Pi0 Decay

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Author : Veronika Chobanova
language : en
Publisher:
Release Date : 2015

Measurement Of Branching Fractions And Cp Asymmetries In B Wk Decays And First Observation Of The B0 Psi 2s Pi0 Decay written by Veronika Chobanova 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.