Download or read book Rare B Meson Decays with eta Prime Or eta Mesons written by Andrei Gritsan and published by . This book was released on 2000 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of B Meson Decays with Excited Eta and Eta prime Mesons written by and published by . This book was released on 2008 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using 383 million B{bar B} pairs from the BABAR data sample, they report results for branching fractions of six charged B-meson decay modes, where a charged kaon recoils against a charmless resonance decaying to K{bar K}* or [eta][pi][pi] final states with mass in the range (1.2-1.8) GeV/c2. They observe a significant enhancement at the low K{bar K}* invariant mass which is interpreted as B 2K, find evidence for the decay B+ 2K+, and place upper limits on the decays B+ 2K+, B+ 2!f1(1285)K+, B+ 2!f1(1420)K+, and B+ 2K+.
Download or read book Measurements of the Branching Fractions of Exclusive Charmless B Meson Decays with Eta prime Or Omega Mesons written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We present the results of searches for B decays to charmless two-body final states containing [eta] or [omega] mesons, based on 20.7 fb−1 of data collected with the BABAR detector. We find the branching fractions [Beta](B 2![eta] K) = (70 ± 8 ± 5) x 10−6, [Beta](B° 2![eta] K°) = (42−11{sup +13} ± 4) x 10−6, and [Beta](B+ 2![omega][pi]+) = (6.6{sub -1.8}{sup +2.1} ± 0.7) x 10−6 where the first error quoted is statistical and the second systematic. We give measurements of four additional modes for which the 90% confidence level upper limits are [Beta](B° 2![omega] K°)
Download or read book G n alogie de Dippre Originaire de Picardie Election et g n ralit d Amiens 9 octobre 1698 written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rare Decays of the ETA and ETA Prime Mesons at Cleo II written by Dennis W. Ugolini and published by . This book was released on 1999 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of Branching Fractions and Charge Asymmetries in B Meson Decays To eta prime K eta prime rho And eta pi 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 branching fractions and charge asymmetries for the B meson decays B[yields][eta][prime] K*, B[yields][eta][prime][rho], and B[sup+][yields][eta][prime][pi][sup+]. The data were recorded with the BABAR detector at PEP-II and correspond to 89 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 0][yields][eta]K*[sup 0])= (19.0[sub -2.1][sup+2.2][+-] 1.3) x 10[sup -6], [Beta](B[sup+][yields][eta]K*[sup+])= (25.7[sub -3.6][sup+3.8][+-] 1.8) x 10[sup -6] with 90% confidence, and[Beta](B[sup+][yields][eta][prime][pi][sup+])= (2.8[sub -1.0][sup+1.3][+-] 0.3) x 10[sup -6] (
Download or read book Search for B Meson Decays to Eta Eta K written by B. Aubert and published by . This book was released on 2006 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors describe searches for decays of B mesons to the charmless final states {eta}'{eta}'K. The data consist of 228 million B{bar B} pairs produced in e{sup +}e{sup -} annihilation, collected with the BABAR detector at the Stanford Linear Accelerator Center. The 90% confidence level upper limits for the branching fractions are {Beta}(B{sup 0} {yields} {eta}'{eta}'K{sup 0})
Download or read book Search for the B Meson Decay to Eta Phi written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present preliminary results of a search for the decay B[sup 0] [yields] [eta][prime][phi]. The data were recorded with the BABAR detector at the PEP-II asymmetric-energy B-meson Factory at SLAC and correspond to 89 million B[bar B] pairs produced in e[sup +]e[sup -] annihilation at the [Upsilon](4S) resonance. We find no evidence for a signal and set a 90% CL upper limit of [Beta](B[sup 0] [yields] [eta][prime][psi])
Download or read book Rare B Decays to States Containing a J psi Meson 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 report a study of the B meson decays, B[sup+][yields] J/[psi][phi]K[sup+], B[sup 0][yields] J/[psi][phi]K[sub S][sup 0], B[sup 0][yields] J/[psi][phi], B[sup 0][yields] J/[psi][eta] and B[sup 0][yields] J/[psi][eta][prime] using 56 million B[bar B] events collected at the[Upsilon](4S) resonance with the BABAR detector at the PEP-II e[sup+]e[sup -] asymmetric-energy storage ring. They measure the branching fractions[Beta](B[sup+][yields] J/[psi][phi]K[sup+])= (4.4[+-] 1.4(stat)[+-] 0.5(syst)) x 10[sup -5] and[Beta](B[sup 0][yields] J/[psi][phi]K[sub S][sup 0])= (5.1[+-] 1.9(stat)[+-] 0.5(syst)) x 10[sup -5], and set upper limits at 90% confidence level for the branching fractions[Beta](B[sup 0][yields] J/[psi][phi])
Download or read book Rare Decay Modes of the eta meson written by Bing-lin Young and published by . This book was released on 1966 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book On Decays of B Mesons to a Strange Meson and an Eta Or Eta Meson at Babar written by and published by . This book was released on 2009 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: We describe studies of the decays of B mesons to final states [eta]K{sup *}(892), [eta]K{sup *}0(S-wave), [eta]K{sup *}2(1430), and [eta]'K based on data collected with the BABAR detector at the PEP-II asymmetric-energy ee− collier at the Stanford Linear Accelerator Center. We measure branching fractions and charge asymmetries for the decays B 2![eta]K{sup *}, where K{sup *} indicates a spin 0, 1, or 2 K[pi] system, making first observations of decays to final states [eta]K{sup *0}0(S-wave), [eta]K{sup *+}0 (S-wave), and [eta]K{sup *0}2(1430). We measure the time-dependent CP-violation parameters S and C for the decays B° 2![eta]'K°, observing CP violation in a charmless B decay with 5[sigma] significance considering both statistical and systematic uncertainties.
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}.
Download or read book B Meson Decays to eta K eta rho eta pi omega pi and phi pi written by and published by . This book was released on 2004 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evidence for the Rare Decay B J psi Eta K written by and published by . This book was released on 2003 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: We 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.
Download or read book B Meson Decays to Quasi Two Body Charmless Final States at BaBar written by A. Lazzaro and published by . This book was released on 2005 with total page 3 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors present results for measurement of the decays to charmless final states of B{sup 0} meson to {eta}K{sup 0}, {eta}{omega}, a{sub 1}{sup +}(1260){pi}{sup -} with a{sub 1}{sup +}(1260) {yields} {pi}{sup +}{pi}{sup +}{pi}{sup -}, and of B{sup +} to {eta}{rho}{sup +}, {eta}{prime}{pi}{sup +}. Analyses are based on data taken with the BABAR detector at the PEP-II asymmetric e{sup +}e{sup -} collider at SLAC.
Download or read book B meson Decays to Eta Rho Eta F0 and Eta K written by and published by . This book was released on 2010 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
