Measurement Of The Branching Fraction For The Decay B Sup 0 D Sup D Sup

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Measurement Of The Branching Fraction For The Decay B Sup 0 D Sup D Sup

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Author :
language : en
Publisher:
Release Date : 2001

Measurement Of The Branching Fraction For The Decay B Sup 0 D Sup D 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 2001 with categories.

Decays of the type B[yields] D[sup (*)][bar D](*) can be used to provide a measurement of the parameter sin2[beta] of the Unitarity Triangle that is complementary to the measurement derived from the mode B[sup 0][yields]/K[sub S][sup 0]. In this document we report a measurement of the branching fraction for the decay B[sup 0][yields] D*[sup+]D*[sup -] with the BABAR detector. With data corresponding to an integrated luminosity of 20.7 fb[sup -1] collected at the[Upsilon](4S) resonance during 1999-2000, we have reconstructed 38 candidate signal events in the mode B[sup 0][yields] D*[sup+]D*[sup -] with an estimated background of 6.2[+-] 0.5 events. From these events, we determine the branching fraction to be[Beta](B[sup 0][yields] D*[sup+]D*[sup -])= (8.0[+-] 1.6(stat)[+-] 1.2(syst)) x 10[sup -4] (preliminary). The measured fraction of the component with odd CP parity is 0.27[+-] 0.17(stat)[+-] 0.02(syst).

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.

Proceedings Of The 28th International Conference On High Energy Physics In 2 Volumes

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Author : Zygmunt Ajduk
language : en
Publisher: World Scientific
Release Date : 1997-04-11

Proceedings Of The 28th International Conference On High Energy Physics In 2 Volumes written by Zygmunt Ajduk and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997-04-11 with categories.

The 28th conference from the Rochester series was the major high energy physics conference in 1996. Volume one contains short reports on new theoretical and experimental results. Volume two consists of the review talks presented in the plenary sessions.

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.

Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.

Government Reports Announcements Index

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Author :
language : en
Publisher:
Release Date : 1994

Government Reports Announcements 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 1994 with Science categories.

Government Reports Annual Index

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Author :
language : en
Publisher:
Release Date : 1992

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 1992 with Government reports announcements & index categories.

Erda Energy Research Abstracts

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Author :
language : en
Publisher:
Release Date : 1983

Erda 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 1983 with Power resources categories.

Measurement Of The Branching Fractions For The Decays B Sup 0 D Sup P Bar P Pi Sup B Sup 0 D Sup P Bar P Pi Sup B0 D Sup 0 P Bar P And B Sup 0 D Sup 0 P Bar P

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language : en
Publisher:
Release Date : 2004

Measurement Of The Branching Fractions For The Decays B Sup 0 D Sup P Bar P Pi Sup B Sup 0 D Sup P Bar P Pi Sup B0 D Sup 0 P Bar P And B Sup 0 D Sup 0 P Bar P 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.

The B[sup 0] meson decay modes B[sup 0] --> D*[sup -]p[bar p][pi][sup +], D[sup -]p[bar p][sup +], [bar D]*[sup 0]p[bar p], and B[sup 0] --> [bar D][sup 0]p[bar p] are studied in a sample of 124 x 10[sup 6] B[bar B] pairs collected with the BABAR detector at the PEP-II collider. The decay of B[sup 0] --> D[sup -]p[bar p][pi][sup +] is observed for the first time, with a measured branching fraction B(B[sup 0] --> D[sup -]p[bar p][pi][sup +]) = (3.80 [+-] 0.35 [+-] 0.46) x 10[sup -4]. The following branching fractions are also determined: B(B[sup 0] --> D*[sup -]p[bar p][pi][sup +]) = (5.61 [+-] 0.59 [+-] 0.73) x 10[sup -4], B(B[sup 0] --> [bar D]*[sup 0] p[bar p]) = (0.67 [+-] 0.21 [+-] 0.09) x 10[sup -4], and B(B[sup 0] --> [bar D][sup 0]p[bar p]) = (1.24 [+-] 0.14 [+-] 0.12) x 10[sup -4]. In each decay mode the invariant mass spectra of the charmed mesons and the baryons are compared with a pure phase-space hypothesis in order to gain insight into the B meson decay dynamics. In particular, the Dalitz plots of [bar D]*[sup 0]p versus [bar D]*[sup 0][bar p] for B[sup 0] --> [bar D]*[sup 0]p[bar p] and of [bar D][sup 0]p versus [bar D][sup 0][bar p] for B[sup 0] --> [bar D][sup 0]p[bar p] are presented. All results are preliminary.

Physics Briefs

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language : en
Publisher:
Release Date : 1990

Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990 with Physics categories.

Government Reports Announcements

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Author :
language : en
Publisher:
Release Date : 1973

Government Reports Announcements written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Research categories.