Observation Of The Decay B Sup Yields Pi Sup Pi Sup 0 Study Of B Sup Yields K Sup Pi Sup 0 And Search For B Sup 0 Yields Pi Sup 0 Pi Sup 0

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Observation Of The Decay B Sup Yields Pi Sup Pi Sup 0 Study Of B Sup Yields K Sup Pi Sup 0 And Search For B Sup 0 Yields Pi Sup 0 Pi Sup 0

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Author :
language : en
Publisher:
Release Date : 2003

Observation Of The Decay B Sup Yields Pi Sup Pi Sup 0 Study Of B Sup Yields K Sup Pi Sup 0 And Search For B Sup 0 Yields Pi Sup 0 Pi Sup 0 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 authors present results for the branching fractions and charge asymmetries in B[sup[+-]][yields] h[sup[+-]][pi][sup 0] (where h[sup[+-]]=[pi][sup[+-]], K[sup[+-]]) and a search for the decay B[sup 0][yields][pi][sup 0][pi][sup 0] using a sample of approximately 88 million B[bar B] pairs collected by the BABAR detector at the PEP-II asymmetric-energy B Factor at SLAC. They measure[Beta](B[sup[+-]][yields][pi][sup[+-]][pi][sup 0])= (5.5[sub -0.9][sup+1.0][+-] 0.6) x 10[sup -6], where the first error is statistical and the second is systematic. The B[sup[+-]][yields][pi][sup[+-]][pi][sup 0] signal has a significance of 7.7[sigma] including systematic uncertainties. The authors simultaneously measure the K[sup[+-]][pi][sup 0] branching fraction to be[Beta](B[sup[+-]][yields] K[sup[+-]][pi][sup 0])= (12.8[sub -1.1][sup+1.2][+-] 1.0) x 10[sup -6]. The charge asymmetries are[Alpha][sub[pi][sup[+-]][pi][sup 0]]= -0.03[sub -0.17][sup+0.18][+-] 0.02 and[Alpha][sub[Kappa][sup[+-]][pi][sup 0]]= -0.09[+-] 0.09[+-] 0.01. The authors place a 90% confidence-level upper limit on the branching fraction[Beta](B[sup 0][yields][pi][sup 0][pi][sup 0]) of 3.6 x 10[sup -6].

Observation Of The Decay B Sup 0 Yields Pi Sup 0 Pi Sup 0

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Author :
language : en
Publisher:
Release Date : 2003

Observation Of The Decay B Sup 0 Yields Pi Sup 0 Pi Sup 0 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 an observation of the decay B[sup 0][yields][pi][sup 0][pi][sup 0] based on a sample of 124 million B[bar B] pairs recorded by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. We observe 46[+-] 13[+-] 3 events, where the first error is statistical and the second is systematic, corresponding to a significance of 4.2 standard deviations including systematic uncertainties. We measure the branching fraction[Beta](B[sup 0][yields][pi][sup 0][pi][sup 0])= (2.1[+-] 0.6[+-] 0.3) x 10[sup -6], averaged over B[sup 0] and[bar B][sup 0] decays.

Observation Of B Sup 0 Yields Omega K Sup 0 B Sup Yields Eta Pi Sup And B Sup Yields Eta K Sup And Study Of Related Decays

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Author :
language : en
Publisher:
Release Date : 2004

Observation Of B Sup 0 Yields Omega K Sup 0 B Sup Yields Eta Pi Sup And B Sup Yields Eta K Sup And Study Of Related 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 2004 with categories.

No abstract prepared.

Scientific And Technical Aerospace Reports

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Author :
language : en
Publisher:
Release Date : 1995

Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.

Study Of The Decays B Sup Yields D Sup Pi Sup Pi Sup

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Author :
language : en
Publisher:
Release Date : 2003

Study Of The Decays B Sup Yields D Sup Pi Sup Pi Sup 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 report on analyses of B[sup -] mesons decaying into D*[sup+][pi][sup -][pi][sup -] and D[sup+][pi][sup -][pi][sup -] final states using 89 million B[sup -] decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory. Preliminary measurements are given for the inclusive branching fractions for B[sup -][yields] D*[sup+][pi][sup -][pi][sup -] and B[sup -][yields] D*[sup+][pi][sup -][pi][sup -], and for the exclusive branching fractions for B[sup -][yields] D[sub 1](2420)[sup 0][pi][sup -] and B[sup -][yields] D*[sub 2](2460)[sup 0][pi][sup -], where D[sub 1](2420)[sup 0] and D*[sub 2](2460)[sup 0] are the two narrow c[bar u] P-wave states. The ratio[Beta](B[sup -][yields] D*[sub 2](2460)[sup 0][pi][sup -])/[Beta](B[sup -][yields] D[sub 1](2420)[sup 0][pi][sup -]) is measured to be 0.80[+-] 0.07[+-] 0.16.

Energy Research Abstracts

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Author :
language : en
Publisher:
Release Date : 1989

Energy Research 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 1989 with Power resources categories.

Nuclear Science Abstracts

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Author :
language : en
Publisher:
Release Date : 1976

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 1976 with Nuclear energy categories.

Erda Energy Research Abstracts

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Author : United States. Energy Research and Development Administration
language : en
Publisher:
Release Date : 1977

Erda Energy Research Abstracts written by United States. Energy Research and Development Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1977 with Medicine categories.

Measurements Of B Sup 0 Decays To Pi Sup Pi Sup Pi Sup 0

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Author :
language : en
Publisher:
Release Date : 2001

Measurements Of B Sup 0 Decays To Pi Sup Pi Sup Pi Sup 0 written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

We present preliminary results of searches for exclusive B[sup 0] decays to[pi][sup+][pi][sup -][pi][sup 0] among 22.7 million b[bar b] pairs collected by the BABAR experiment from electron-positron collisions near the[Upsilon](4S) resonance. We measure[Beta](B[sup 0][yields][pi][sup[+-]])= (28.9[+-] 5.4[+-] 4.3) x 10[sup 6], and find no evidence for the presence of any other decay mode in the[pi][sup+][pi][sup -][pi][sup 0] Dalitz plot. Upper limits are determined for the branching fractions of B[sup 0][yields][sup 0][pi][sup 0], non-resonant B[sup 0] decays to[pi][sup+][pi][sup -][pi][sup 0] and of several discrete regions of[pi][sup+][pi][sup -][pi][sup 0] phase-space. We also measure the direct CP-violating asymmetry between the rates of untagged[sup+][pi][sup -] and[sup -][pi][sup+], finding no significant evidence for an effect.

Government Reports Annual Index

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Author :
language : en
Publisher:
Release Date : 199?

Government Reports Annual 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 199? with categories.