A Measurement Of The Branching Fractions Ofexclusive Bbar To D Pi Lnu Decays In Events With A Fully Reconstructed Bmeson

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A Measurement Of The Branching Fractions Ofexclusive Bbar To D Pi Lnu Decays In Events With A Fully Reconstructed Bmeson

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Author :
language : en
Publisher:
Release Date : 2008

A Measurement Of The Branching Fractions Ofexclusive Bbar To D Pi Lnu Decays In Events With A Fully Reconstructed Bmeson 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 report a measurement of the branching fractions for {bar B} → D{sup (*)}?l−{bar ?}{sub l} decays based on 341.1 fb−1 of data collected at the ?(4S) resonance with the BABAR detector at the PEP-II e+e− storage rings. Events are tagged by fully reconstructing one of the B mesons in a hadronic decay mode. The obtain ?(B− → D°l−{bar ?}{sub l}) = (2.33 ± 0.09{sub stat.} ± 0.09{sub syst.})%, ?(B− → D*°l−{bar ?}{sub l}) = 5.83 ± 0.15{sub stat.} ± 0.30{sub syst.}%, ?({bar B}° → D+l−{bar ?}{sub l}) = (2.21 ± 0.11{sub stat.} ± 0.12{sub syst.})% ?({bar B}° → D*+l−{bar ?}{sub l}) = 5.49 ± 0.16{sub stat.} ± 0.25{sub syst.}%, ?(B− → D+?−l−{bar ?}{sub l}) = (0.42 ± 0.06{sub stat.} ± 0.03{sub syst.})%, ?(B− → D*+ ?−l−{bar ?}{sub l}) = (0.59 ± 0.05{sub stat.} ± 0.04{sub syst.})%, ?({bar B}° → D°?+l−{bar ?}{sub l}) = (0.43 ± 0.08{sub stat.} ± 0.03{sub syst.})% and ?({bar B}° → D*° ?+l−{bar ?}{sub l}) = (0.48 ± 0.08{sub stat.} ± 0.04{sub syst.})%.

Measurement Of The Relative Branching Fractions Of Bbar To D D D L Nubar L Decays In Events With A Fully Reconstructed B Meson

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Author :
language : en
Publisher:
Release Date : 2007

Measurement Of The Relative Branching Fractions Of Bbar To D D D L Nubar L Decays In Events With A Fully Reconstructed B Meson 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 determine the relative branching fractions of semileptonic B decays to charmed final states. The measurement is performed on the recoil from a fully reconstructed B meson in a sample of 362 million B{bar B} pairs collected at the [Upsilon](4S) resonance with the BABAR detector. A simultaneous fit to a set of discriminating variables is performed on a sample of {bar B} → DXl−{bar {nu}}{sub {ell}} decays to determine the contributions from the different channels.

Measurement Of The Branching Fractions Of Bbar D L Nubar L Decays In Events Tagged By A Fully Reconstructed B Meson

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Author :
language : en
Publisher:
Release Date : 2008

Measurement Of The Branching Fractions Of Bbar D L Nubar L Decays In Events Tagged By A Fully Reconstructed B Meson 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.

We report a measurement of the branching fractions of {bar B} 2!D** l−{bar {nu}}{sub l} decays based on 417 fb−1 of data collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II ee− storage rings. Events are selected by fully reconstructing one of the B mesons in a hadronic decay mode. A fit to the invariant mass differences m(D{sup (*)})-m(D{sup (*)}) is performed to extract the signal yields of the different D** states. We observe the {bar B} 2!D**{ell}−{bar {nu}}{sub {ell}} decay modes corresponding to the four D** states predicted by Heavy Quark Symmetry with a significance greater than six standard deviations including systematic uncertainties.

La P Tite Du Sixi Me

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Author :
language : en
Publisher:
Release Date : 1917

La P Tite Du Sixi Me written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1917 with categories.

Branching Fraction For B Pi0 L Nu Measured In Upsilon 4s Bbbar Events Tagged By B D0 L Nubar X Decays

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Author : J. C. Chen
language : en
Publisher:
Release Date : 2005

Branching Fraction For B Pi0 L Nu Measured In Upsilon 4s Bbbar Events Tagged By B D0 L Nubar X Decays written by J. C. Chen 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.

We report a preliminary branching fraction of (1.80 {+-} 0.37{sub stat.} {+-} 0.23{sub syst.}) x 10{sup -4} for the charmless exclusive semileptonic B{sup +} {yields} {pi}{sup 0}{ell}{sup +}{nu} decay, where {ell} can be either a muon or an electron. This result is based on data corresponding to an integrated luminosity of 81 fb{sup -1} collected at the {Upsilon}(4S) resonance with the BABAR detector. The analysis uses B{bar B} events that are tagged by a B meson reconstructed in the semileptonic B{sup -} {yields} D{sup 0}{ell}{sup -}{bar {nu}}(X) decays, where X can be either a {gamma} or a {pi}{sup 0} from a D* decay.

Measurement Of The Branching Fractions For B0 D Pi And B0 D Rho

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Author :
language : en
Publisher:
Release Date : 2001

Measurement Of The Branching Fractions For B0 D Pi And B0 D Rho 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.

Using 5.2 fb[sup -1] annihilation data recorded with the BABAR detector at the PEP-II storage ring while operating on the[Upsilon](4S) resonance, a sample of fully reconstructed B[sup 0] decays in the hadronic modes B[sup 0][yields] D*[sup -][pi][sup+] and B[sup 0][yields] D*[sup -][rho][sup+] have been reconstructed. In this paper, a study of these events is reported, including preliminary measurements of the absolute branching fractions for these modes, which are found to be B(B[sup 0][yields] D*[sup -][pi][sup+]= 2.9[+-] 0.3[+-] 0.3) x 10[sup -3] and B(B[sup 0][yields] D*[sup -][rho][sup+])= (11.2[+-] 1.1[+-] 2.5) x 10[sup -3].

An Inclusive Measurement Of The Branching Fraction For The B 602 S 222 Using The Recoil Of Fully Reconstructed B Meson Decays

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Author : Clare Louise Brown
language : en
Publisher:
Release Date : 2005

An Inclusive Measurement Of The Branching Fraction For The B 602 S 222 Using The Recoil Of Fully Reconstructed B Meson Decays written by Clare Louise Brown 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.

An Inclusive Measurement Of The Branching Fraction For The B U2192 S Using The Recoil Of Fully Reconstructed B Meson Decays

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Author : Clare Louise Brown
language : en
Publisher:
Release Date : 2005

An Inclusive Measurement Of The Branching Fraction For The B U2192 S Using The Recoil Of Fully Reconstructed B Meson Decays written by Clare Louise Brown 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.

Crippen Wedi Ei Gondemnio I Farw Am Lofruddio A Darnio Ei Wraig A I Chladdu Yn Seler Ei Dy

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Author :
language : en
Publisher:
Release Date : 18??

Crippen Wedi Ei Gondemnio I Farw Am Lofruddio A Darnio Ei Wraig A I Chladdu Yn Seler Ei Dy written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 18?? with Capital punishment categories.

Study Of Bbar To Xu L Nubar Decays In Bbbar Events Tagged By A Fully Reconstructed B Meson Decay And Determination Of

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Author :
language : en
Publisher:
Release Date : 2012

Study Of Bbar To Xu L Nubar Decays In Bbbar Events Tagged By A Fully Reconstructed B Meson Decay And Determination Of 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.

We report measurements of partial branching fractions for inclusive charmless semileptonic B decays {bar B} → X{sub u}l{bar {nu}}, and the determination of the CKM matrix element.