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Observation Of B Meson Decays To Omegapi Omegak And Omegak0
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Book Synopsis Observation of B Meson Decays to Omegapi+, OmegaK+, and OmegaK0 by :
Download or read book Observation of B Meson Decays to Omegapi+, OmegaK+, and OmegaK0 written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present preliminary measurements of B meson decays to B[sup+][yields][omega][pi][sup+], B[sup+][yields][omega]K[sup+], and B[sup 0][yields][omega]K[sup 0]. The data were recorded with the BABAR detector and correspond to 88.9 x 10[sup 6] B[bar B] pairs produced in e[sup+]e[sup -] annihilation at the[Upsilon](4S) resonance. They find statistically significant signals for all three channels:[Beta](B[sup+][yields][omega][pi][sup+])= (5.4[+-] 1.0[+-] 0.5) x 10[sup -6], [Beta](B[sup+][yields][omega]K[sup+])= (5.0[+-] 1.0[+-] 0.4) x 10[sup -6], and[Beta](B[sup 0][yields][omega]K[sup 0])= (5.3[sub -1.2][sup+1.4][+-] 0.5) x 10[sup -6]. They also measure time-integrated charge asymmetries[Alpha][sub ch](B[sup+][yields][omega][pi][sup+])= 0.04[+-] 0.17[+-] 0.01 and[Alpha][sub ch](B[sup+][yields][omega]K[sup+])= -0.05[+-] 0.16[+-] 0.01.
Book Synopsis Observation of B Meson Decays to OmegaK* and Improved Measurements for Omegarho and Omegaf0 by :
Download or read book Observation of B Meson Decays to OmegaK* and Improved Measurements for Omegarho and Omegaf0 written by and published by . This book was released on 2009 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present measurements of B meson decays to the final states [omega]K*, [omega][rho], and [omega]f0, where K* indicates a spin 0, 1, or 2 strange meson. The data sample corresponds to 465 x 106 B{bar B} pairs collected with the BABAR detector at the PEP-II ee− collider at SLAC. B meson decays involving vector-scalar, vector-vector, and vector-tensor final states are analyzed; the latter two shed new light on the polarization of these final states. We measure the branching fractions for nine of these decays; five are observed for the first time. For most decays we also measure the charge asymmetry and, where relevant, the longitudinal polarization f{sub L}.
Book Synopsis Two-body B Meson Decays by : Heather S. Krieg
Download or read book Two-body B Meson Decays written by Heather S. Krieg and published by . This book was released on 1999 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation of Exclusive B Meson Decays to Final States Containing a Charmed Baryon by : John Joseph O'Neill (Ph. D. in physics)
Download or read book Observation of Exclusive B Meson Decays to Final States Containing a Charmed Baryon written by John Joseph O'Neill (Ph. D. in physics) and published by . This book was released on 1996 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation of B Meson Decays to Eta Pi and Eta K. by :
Download or read book Observation of B Meson Decays to Eta Pi and Eta K. written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present preliminary measurements of the B meson decays B[sup+][yields][eta][pi][sup+], B[sup+][yields][eta]K[sup+], and B[sup 0][yields][eta]K[sup 0]. The data were recorded with the BABAR detector at PEP II and correspond to 88.9 x 10[sup 6] B[bar B] pairs produced in e[sup+]e[sup -] annihilation through the[Upsilon](4S) resonance. They find the branching fractions[Beta](B[sup+][yields][eta][pi][sup+])= (4.2[sub -0.9][sup+1.0][+-] 0.3) x 10[sup -6] and[Beta](B[sup+][yields][eta]K[sup+])= (2.8[sub -0.7][sup+0.8][+-] 0.2) x 10[sup -6]. They set a 90% CL upper limit of[Beta](B[sup 0][yields][eta]K[sup 0])
Book Synopsis Observation and Study of the Baryonic B-meson Decays B to D(*) P Pbar?? by :
Download or read book Observation and Study of the Baryonic B-meson Decays B to D(*) P Pbar?? written by and published by . This book was released on 2012 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present results for B-meson decay modes involving a charm meson, protons, and pions using 455 x 106 B{bar B} pairs recorded by the BABAR detector at the SLAC PEP-II asymmetric-energy ee− collider. The branching fractions are measured for the following ten decays: {bar B}° → D°p{bar p}, {bar B}° → D*°p{bar p}, {bar B}° → D+p{bar p}?−, {bar B}° → D*+p{bar p}?−, B− → D°p{bar p}?−, B− → D*°pp?−, {bar B}° → D°p{bar p}?−?+, {bar B}° → D*°p{bar p}?−?+, B− → D+p{bar p}?−?−, and B− → D*+p{bar p}?−?−. The four B− and the two five-body B° modes are observed for the first time. The four-body modes are enhanced compared to the three- and the five-body modes. In the three-body modes, the M(p{bar p}) and M(D{sup (*)0}p) invariant mass distributions show enhancements near threshold values. In the four-body mode {bar B}° → D+p{bar p}?−, the M(p?−) distribution shows a narrow structure of unknown origin near 1.5GeV/c2. The distributions for the five-body modes, in contrast to the others, are similar to the expectations from uniform phase-space predictions.
Book Synopsis Observation of charmless B meson decays by :
Download or read book Observation of charmless B meson decays written by and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measurements of B Meson Decays to Omega K* and Omega Rho by :
Download or read book Measurements of B Meson Decays to Omega K* and Omega Rho written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We describe searches for B meson decays to the charmless vector-vector final states [omega]K* and [omega][rho] in 89 million B{bar B} pairs produced in e+e− annihilation at √s = 10.58 GeV.
Book Synopsis Observation of B0 ØØK0 and Study of B Meson Decays to the Five Kaons Final State by : 董彥緯
Download or read book Observation of B0 ØØK0 and Study of B Meson Decays to the Five Kaons Final State written by 董彥緯 and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation of Semileptonic Charmless B Meson Decays by : ARGUS Collaboration
Download or read book Observation of Semileptonic Charmless B Meson Decays written by ARGUS Collaboration and published by . This book was released on 1989 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation of B° Meson Decay To?1(1260)?− by :
Download or read book Observation of B° Meson Decay To?1(1260)?− written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a preliminary measurement of the branching fraction of the B meson decay B° -->?1(1260) -->?+?+?−. The data were recorded with the BABAR detector at the SLAC B factory PEP-II and correspond to 124 x 106 B{bar B} pairs produced in e+e− annihilation through the?(4S) resonance. They find the branching fraction B(B° -->?1+(1260)?−) = (42.6 ± 4.2 ± 4.1) x 10−6. The fitted values of the?1(1260) parameters are m{sub {alpha}1} = 1.19 ± 0.02 GeV/c2 and?{sub {alpha}1} = 312 ± 55 MeV/c2.
Book Synopsis Observation And Study of B Meson Decays with Lambda(C) Baryons with the BaBar Detector by :
Download or read book Observation And Study of B Meson Decays with Lambda(C) Baryons with the BaBar Detector written by and published by . This book was released on 2013 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation of Inclusive B Meson Decays Into [lambda]+c̳ Baryons by : ARGUS Collaboration
Download or read book Observation of Inclusive B Meson Decays Into [lambda]+c̳ Baryons written by ARGUS Collaboration and published by . This book was released on 1988 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Observation of B[sup 0] Meson Decay to [alpha][sub 1][sup +](1260) [pi][sup -]. by :
Download or read book Observation of B[sup 0] Meson Decay to [alpha][sub 1][sup +](1260) [pi][sup -]. written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present a preliminary measurement of the branching fraction of the B meson decay B[sup 0] --> [alpha][sup 1][sup +](1260) --> [pi][sup +][pi][sup +][pi][sup -]. The data were recorded with the BABAR detector at the SLAC B factory PEP-II and correspond to 124 x 10[sup 6] B[bar B] pairs produced in e[sup +]e[sup -] annihilation through the [Upsilon](4S) resonance. They find the branching fraction B(B[sup 0] --> [alpha][sub 1][sup +](1260)[pi][sup -]) = (42.6 [+-] 4.2 [+-] 4.1) x 10[sup -6]. The fitted values of the [alpha][sub 1](1260) parameters are m[sub [alpha][sub 1]] = 1.19 [+-] 0.02 GeV/c[sup 2] and [Gamma][sub [alpha][sub 1]] = 312 [+-] 55 MeV/c[sup 2].
Book Synopsis Rare B Meson Decays With Omega Mesons by : Lei Zhang
Download or read book Rare B Meson Decays With Omega Mesons written by Lei Zhang and published by . This book was released on 2006 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare charmless hadronic B decays are particularly interesting because of their importance in understanding the CP violation, which is essential to explain the matter-antimatter asymmetry in our universe, and of their roles in testing the ''effective'' theory of B physics. The study has been done with the BABAR experiment, which is mainly designed for the study of CP violation in the decays of neutral B mesons, and secondarily for rare processes that become accessible with the high luminosity of the PEP-II B Factory. In a sample of 89 million produced B{bar B} pairs on the BABAR experiment, we observed the decays B{sup 0} {yields} {omega}K{sup 0} and B{sup +} {yields} {omega}{rho}{sup +} for the first time, made more precise measurements for B{sup +} {yields} {omega}h{sup +} and reported tighter upper limits for B {yields} {omega}K* and B{sup 0} {yields} {omega}{rho}{sup 0}.
Book Synopsis Study of B Meson Decays to Ppbarh Final States by : Tetiana B. Hryn'ova
Download or read book Study of B Meson Decays to Ppbarh Final States written by Tetiana B. Hryn'ova and published by . This book was released on 2006 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: B mesons are unique among well-established non-quarkonium mesons in their ability to decay into baryons. Baryonic B decays offer a wide range of interesting areas of study: they can be used to test our theoretical understanding of rare decay processes involving baryons, search for direct CP violation and study low-energy QCD. This thesis presents measurements of branching fractions and a study of the decay dynamics of the charmless three-body decays of B meson into p{bar p}h final states, where h = {pi}{sup +}, K{sup +}, K{sub S}{sup 0}, K*{sup 0} or K*{sup +}. With a sample of 232 million {Upsilon}(4S) {yields} B{bar B} events collected with the BaBar detector, we report the first observation of the B {yields} p{bar p}K*{sup 0} decay, and provide improved measurements of branching fractions of the other modes. The distribution of the three final-state particles is of particular interest since it provides dynamical information on the possible presence of exotic intermediate states such as the hypothetical pentaquark states {Theta}*{sup ++} and {Theta}{sup +}in the m{sub pK{sup +}} and m{sub pK{sub S}{sup 0}} spectra, respectively, or glueball states (such as the tensor glueball f{sub J}(2220)) in the m{sub p{bar p}} spectrum. No evidence for exotic states is found and upper limits on the branching fractions are set. An enhancement at low p{bar p} mass is observed in all the B {yields} p{bar p}h modes, and its shape is compared between the decay modes and with the shape of the time-like proton form factor. A Dalitz plot asymmetry in B {yields} p{bar p}K{sup +} mode suggests dominance of the penguin amplitude in this decay and disfavors the possibility that the low mass p{bar p} enhancement originates from the presence of a resonance below threshold (such as the recently seen baryonium candidate at 1835 MeV/c{sup 2}). We also identify decays of the type B {yields} X{sub c{bar c}}h {yields} p{bar p}h, where h = K{sup +}, K{sub S}{sup 0}, K*{sup 0} or K*{sup +}, and X{sub c{bar c}} = {eta}{sub c} or J/{psi}. In particular, we report on the evidence of the B {yields} {eta}{sub c}K*{sup +} decay and provide a measurement of the width of {eta}{sub c}.
Book Synopsis Observation of B+ to B_1+K0 and Search for B-meson Decays to B_10K0 and B_1pi0 by :
Download or read book Observation of B+ to B_1+K0 and Search for B-meson Decays to B_10K0 and B_1pi0 written by and published by . This book was released on 2008 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the results of searches for decays of B mesons to final states with a b1 meson and a neutral pion or kaon. The data, collected with the BABAR detector at the Stanford Linear Accelerator Center, represent 465 million B{bar B} pairs produced in ee− annihilation. The results for the branching fractions are, in units of 10−6, [Beta](B 2!b1+K°) = 9.6 ± 1.7 ± 0.9, [Beta](B° 2!b1°K°) = 5.1 ± 1.8 ± 0.5 (
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