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

DOWNLOAD

Download Measurement Of The Branching Fractions For The Decays B D P Bar P B D P Bar P B0 D P Bar P And B D P Bar P PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Measurement Of The Branching Fractions For The Decays B D P Bar P B D P Bar P B0 D P Bar P And B D P Bar P book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page

Recueil Factice D Articles De Presse Concernant Henriette Berthias

DOWNLOAD
Author :
language : en
Publisher:
Release Date :

Recueil Factice D Articles De Presse Concernant Henriette Berthias written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with 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

DOWNLOAD
Author :
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.

Measurement Of The B Rightarrow P Bar P K Branching Fraction And Study Of The Decay Dynamics

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2005

Measurement Of The B Rightarrow P Bar P K Branching Fraction And Study Of The Decay Dynamics written by 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.

With a sample of 232 x 106 [Upsilon](4S) 2!B{bar B} events collected with the BABAR detector, we study the decay B 2!p{bar p}K excluding charmonium decays to p{bar p}. We measure a branching fraction [Beta](B+ 2!p{bar p}K+) = (6.7 ± 0.5 ± 0.4) x 10−6. An enhancement at low p{bar p} mass is observed and the Dalitz plot asymmetry suggests dominance of the penguin amplitude in this B decay. We search for a pentaquark candidate [Theta]*{sup ++} decaying into pK+ in the mass range 1.43 to 2.00 GeV/c2 and set limits on [Beta](B+ 2![Theta]*{sup ++} {bar p}) x [Beta]([Theta]*{sup ++} 2!pK+) at the 10−7 level.

Observation And Study Of Baryonic B Decays

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2009

Observation And Study Of Baryonic B 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 2009 with categories.

We present a study of ten B-meson decays to a D{sup (*)}, a proton-antiproton pair, and a system of up to two pions using BABAR's data set of 455 x 106 B{bar B} pairs. Four of the modes {bar B}° → D°p{bar p}, {bar B}° → D*°p{bar p}, {bar B}° → Dp{bar p}?−, {bar B}° → D{sup ast+}p{bar p}?− are studied with improved statistics compared to previous measurements; six of the modes (B− → D°p{bar p}?−, B− → D*°p{bar p}?−, {bar B}° → D°p{bar p}?−?+, {bar B}° → D*°p{bar p}?−?+, B− → D+p{bar p}?−?−, B− → D{sup ast+}p{bar p}?−?−) are first observations. The branching fractions for 3- and 5-body decays are suppressed compared to 4-body decays. Kinematic distributions for 3-body decays show non-overlapping threshold enhancements in m(p{bar p}) and m(D{sup (*)0}p) in the Dalitz plots. For 4-body decays, m(p?−) mass projections show a narrow peak with mass and full width of (1497.4 ± 3.0 ± 0.9)MeV/c2 and (47 ± 12 ± 4)MeV/c2, respectively, where the first (second) errors are statistical (systematic). For 5-body decays, mass projections are similar to phase space expectations. All results are preliminary.

Measurement Of The B0 Lambda Bar P Pi Branching Fraction Andstudy Of The Decay Dynamics

DOWNLOAD
Author : M. Bondioli
language : en
Publisher:
Release Date : 2006

Measurement Of The B0 Lambda Bar P Pi Branching Fraction Andstudy Of The Decay Dynamics written by M. Bondioli 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 a measurement of the B{sup 0} {center_dot} {bar {Lambda}}p{pi}{sup -} branching fraction performed using the BABAR detector at the PEP-II asymmetric energy e{sup +}e{sup -} collider. Based on a 232 million B{bar B} pairs data sample we measure: {center_dot} (B{sup 0} {center_dot} {bar {Lambda}}p{pi}{sup -}) = [3.30 {center_dot} 0.53(stat.) {center_dot} 0.31 (syst.)] {center_dot} 10{sup -6}. A measurement of the differential spectrum as a function of the di-baryon invariant mass m({Lambda}p) is also presented; this shows a near-threshold enhancement similar to that observed in other baryonic B decays.

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

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2004

Measurement Of The Branching Fractions For The Decays B D P Bar P B D P Bar P B0 D P Bar P And B D 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° meson decay modes B° --> D*−p{bar p}?, D−p{bar p}+, {bar D}*°p{bar p}, and B° --> {bar D}°p{bar p} are studied in a sample of 124 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II collider. The decay of B° --> D−p{bar p}?+ is observed for the first time, with a measured branching fraction B(B° --> D−p{bar p}?+) = (3.80 ± 0.35 ± 0.46) x 10−4. The following branching fractions are also determined: B(B° --> D*−p{bar p}?+) = (5.61 ± 0.59 ± 0.73) x 10−4, B(B° --> {bar D}*° p{bar p}) = (0.67 ± 0.21 ± 0.09) x 10−4, and B(B° --> {bar D}°p{bar p}) = (1.24 ± 0.14 ± 0.12) x 10−4. 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}*°p versus {bar D}*°{bar p} for B° --> {bar D}*°p{bar p} and of {bar D}°p versus {bar D}°{bar p} for B° --> {bar D}°p{bar p} are presented. All results are preliminary.

Measurements Of The Decays B0 D0barppbar B0 D 0ppbar B0 D Ppbar Pi And B0 D Ppbar Pi

DOWNLOAD
Author : B. Aubert
language : en
Publisher:
Release Date : 2006

Measurements Of The Decays B0 D0barppbar B0 D 0ppbar B0 D Ppbar Pi And B0 D Ppbar Pi 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 2006 with categories.

The authors present measurements of branching fractions of B{sup 0} decays to multi-body final states containing protons, based on 232 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. They measure the branching fractions {Beta}(B{sup 0} {yields} {bar D}{sup 0} p{bar p}) = (1.13 {+-} 0.06 {+-} 0.08) x 10{sup -4} {Beta}(B{sup 0} {yields} {bar D}*{sup 0} p{bar p}) = (1.01 {+-} 0.10 {+-} 0.09) x 10{sup -4}, {Beta}(B{sup 0} {yields} D{sup -} p{bar p}{pi}{sup +}) = (3.38 {+-} 0.14 {+-} 0.29) x 10{sup -4}, and {Beta}(B{sup 0} {yields} D*{sup -} p{bar p}{pi}{sup +}) = (4.81 {+-} 0.22 {+-} 0.44) x 10{sup -4} where the first error is statistical and the second systematic. They present a search for the charmed pentaquark state, {Theta}{sub c}(3100) observed by H1 and put limits on the branching fraction {Beta}(B{sup 0} {yields} {Theta}{sub c}{bar p}{pi}{sup +}) x {Beta}({Theta}{sub c} {yields} D*{sup -}p)

Measurement Of The Ratio Of Branching Fractions B D0 K Pi

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2006

Measurement Of The Ratio Of Branching Fractions B D0 K Pi written by 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.

The authors present a measurement of R{sub B}, the ratio of the branching fraction for the rare decay D° → K?− to that for the Cabibbo-favored decay D° → K−?+. Charge conjugate decays are implicitly included. A signal of 2005 ± 104 events for the decay D° → K+?− is obtained using the CDF II detector at the Fermilab Tevatron collider. The data set corresponds to an integrated luminosity of 0.35 fb−1 produced in {bar p}p collisions at √s = 1.96 TeV. Assuming no mixing, they find R{sub B} = [4.05 ± 0.21(stat) ± 0.11(syst)] x 10−3. This measurement is consistent with the world average, and comparable in accuracy with the best measurements from other experiments.

Branching Fraction Measurement Of B0 To D Pi And B To D 0pi And Isospin Analyses Of B To D Pi Decays

DOWNLOAD
Author : B. Aubert
language : en
Publisher:
Release Date : 2006

Branching Fraction Measurement Of B0 To D Pi And B To D 0pi And Isospin Analyses Of B To D Pi 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 2006 with categories.

Using 65 million {Upsilon}(4S) {yields} B{bar B} events collected with the BABAR detector at the PEP-II e{sup +}e{sup -} storage ring at the Stanford Linear Accelerator Center, they measure the color-favored branching fractions {Beta}({bar B}{sup 0} {yields} D{sup +}{pi}{sup -}) = (2.63 {+-} 0.05 {+-} 0.22) x 10{sup -3}, {Beta}({bar B}{sup 0} {yields} D*{sup +}{pi}{sup -}) = (2.79 {+-} 0.08 {+-} 0.18) x 10{sup -3}, {Beta}(B{sup -} {yields} D{sup 0}{pi}{sup -}) = (4.90 {+-} 0.07 {+-} 0.23) x 10{sup -3} and {Beta}(B{sup -} {yields} D*{sup 0} {pi}{sup -}) = (5.52 {+-} 0.17 {+-} 0.43) x 10{sup -3}, where the first error is statistical and the second is systematic. With these results and the current world average for the branching fraction for the color-suppressed decay {bar B}{sup 0} {yields} D{sup (*)0}{pi}{sup 0}, the cosines of the strong phase difference {delta} between the I = 1/2 and I = 3/2 isospin amplitudes are determined to be cos{sigma} = 0.860{sub -0.006-0.028}{sup +0.007+0.029} for the {bar B} {yields} D{pi} process and cos{sigma} = 0.917{sub -0.016-0.051}{sup +0.018+0.059} for the {bar B} {yields} D*{pi} process. The results for cos{delta} suggest that final-state interactions are presented in the D{pi} system.

A Study Of Bar B Sup 0 D Sup 0 Bar K Sup 0 Decays

DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2004

A Study Of Bar B Sup 0 D Sup 0 Bar K Sup 0 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.

The authors presented evidence for the decay [bar B][sup 0] --> D*[sup 0][bar K][sup 0] as well as new measurements of the branching fractions for the decays [bar B][sup 0] --> D[sup 0][bar K][sup 0] and D[sup 0][bar K]*[sup 0]. Their measurements are in agreement with the expectation derived from a cited reference and with previous measurements. They use the central value of their measurement for B([bar B][sup 0] --> [bar D][sup 0]K*[sup 0]) and obtain [tau]