Rare B Decays to States Containing a J/[psi] Meson
Author: Jinlong Zhang
Publisher:
Published: 2002
Total Pages: 372
ISBN-13:
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Rare B Decays to States Containing a J/psi Meson
Author:
Publisher:
Published: 2003
Total Pages: 26
ISBN-13:
DOWNLOAD EBOOKRare B Decays to States Containing a J/psi
Author:
Publisher:
Published: 2004
Total Pages: 18
ISBN-13:
DOWNLOAD EBOOKMeasurement of $b$ Hadron Lifetimes in Exclusive Decays Containing a $J/\psi$ in $p-̂$ Pbar Collisions at $\sqrt{s}
Author:
Publisher:
Published: 2010
Total Pages:
ISBN-13:
DOWNLOAD EBOOKRare Hadronic B Decays
Author: A. J. Bevan
Publisher:
Published: 2006
Total Pages:
ISBN-13:
DOWNLOAD EBOOKRare hadronic B-meson decays allow us to study CP violation. The class of B-decays final states containing two vector mesons provides a rich set of angular correlation observables to study. This article reviews some of the recent experimental results from the BABAR and Belle collaborations.
Decays of J/psi (3100) to Baryon Final States
Author:
Publisher:
Published: 1982
Total Pages:
ISBN-13:
DOWNLOAD EBOOKWe present results for the decays of psi(3100) into baryon and hyperon final states. The sample studied here consists of 1.3 million produced psi decays. The decays into nonstrange baryons agree well with currently established results, but with better statistics. In addition, significant resonance formation in multibody final states is observed. The decay psi .-->. anti pp.gamma., the first direct photon decay of the psi involving baryons in the final state, is presented and the theoretical implications of the decays are briefly explored. Several new decays of the psi involving strange baryons are explored, including the first observations of three body final states involving hyperons. The I-spin symmetry of the strong decay psi .-->. baryons has clearly been observed. The reduced matrix elements for psi .-->. B anti B are presented for final states of different SU(3) content. The B anti B8 results are in excellent agreement with the psi being an SU(3) singlet as are the results for psi .-->. B10 anti B10. We present the first evidence for the SU(3) violating decays of the type psi .-->. B8 anti B10 + c.c. Angular distributions for psi .-->. B8 anti B8 are presented and compared with theoretical predictions. Statistics are limited, but the data tends to prefer other than a 1 + Cos2theta distribution.
Evidence for the Rare Decay, B--] J/psi Eta K.
Author:
Publisher:
Published: 2003
Total Pages: 14
ISBN-13:
DOWNLOAD EBOOKWe report evidence for the B meson decays, B{sup ±} 2!J/[psi][eta]K{sup ±} and B° 2!J/[psi][eta]K{sub S}°, using 90 million B{bar B} events collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II ee− asymmetric-energy storage ring. We obtain preliminary branching fractions in the charged and neutral channels of (10.8 ± 2.3(stat.) ± 2.4(syst.)) x 10−5 and (8.4 {+-} 2.6(stat.) {+-} 2.7(syst.)) x 10−5, respectively.
Observation of the Three-body Rare Decay B-] J/psi Phi K.
Author:
Publisher:
Published: 2010
Total Pages: 19
ISBN-13:
DOWNLOAD EBOOKThe authors report the study of the B meson decays B{sup ±} 2!J/[psi][phi]K{sup ±}, B° 2!J/[psi][phi]K° using 433 million of B{bar B} events collected at the [Upsilon](4S) resonance with the BABAR detector at the PEP-II ee− asymmetric-energy collider. They obtain the branching fraction measurements: [Beta](B{sup ±} 2!J[psi][phi]K{sup ±}) = (5.6 {+-} 0.9(stat) {+-} 0.3(sys)) x 10−5, [Beta](B{sup {+-}} 2!J[psi][phi]K°) = (5.4 {+-} 1.2(stat) {+-} 0.4(sys)) x 10−5.
Decays of J
Author:
Publisher:
Published: 1982
Total Pages:
ISBN-13:
DOWNLOAD EBOOKWe present results for the decays of psi(3100) into baryon and hyperon final states. The sample studied here consists of 1.3 million produced psi decays. The decays into nonstrange baryons agree well with currently established results, but with better statistics. In addition, significant resonance formation in multibody final states is observed. The decay psi .-->. anti pp.gamma., the first direct photon decay of the psi involving baryons in the final state, is presented and the theoretical implications of the decays are briefly explored. Several new decays of the psi involving strange baryons are explored, including the first observations of three body final states involving hyperons. The I-spin symmetry of the strong decay psi .-->. baryons has clearly been observed. The reduced matrix elements for psi .-->. B anti B are presented for final states of different SU(3) content. The B anti B results are in excellent agreement with the psi being an SU(3) singlet as are the results for psi .-->. B10 anti B10. We present the first evidence for the SU(3) violating decays of the type psi .-->. B8 anti B10 + c.c. Angular distributions for psi .-->. B8 anti B8 are presented and compared with theoretical predictions. Statistics are limited, but the data tends to prefer other than a 1 + Cos2theta distribution.
Study of Hadronic and Rare B Decays in BABAR.
Author:
Publisher:
Published: 2001
Total Pages: 5
ISBN-13:
DOWNLOAD EBOOKWe present results from BaBar experiment for the measurement of inclusive and exclusive branching fractions of B mesons into final states containing J/[psi], [psi](2S) and [chi]c. The contributions of CP even and odd amplitudes in the decay B° 2!J/[psi]K*° are determined from an angular analysis. We report the measurements of the branching ratios B° 2!D* D*− and D* D*− K{sub S}°, and the study of exclusive two-body and quasi-two-body charmless decays. The branching fraction of the decay B° 2!K*°[gamma] has been determined and the corresponding CP asymmetry has been measured.
