Download or read book Time Dependent B sub S bar B sub S Mixing Using Inclusive and Semileptonic B sup S Decays at SLD written by and published by . This book was released on 1998 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}°-{anti B}{sub s}° mixing using a sample of 250,000 hadronic Z° decays collected by the SLD experiment at the SLC between January 1996 and March 1998. The analyses determine the b-hadron flavor at production by exploiting the large forward-backward asymmetry of polarized Z° 2!b{anti b} decays as well as information from the hemisphere opposite that of the reconstructed B decay. In one analysis, B decay vertices are reconstructed inclusively with a topological technique, and separation between B{sub s}° and {anti B}{sub s}° decays exploits the B{sub s}° 2!D{sub s}− cascade charge structure. The other analysis selects semileptonic decays reconstructed by intersecting a lepton with he trajectory of a topologically reconstructed D meson. The two analyses are combined to exclude the following values of the B{sub s}°-{anti B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}

Download or read book Time Dependent B sub S sup 0 bar B sub S sup 0 Mixing Using Inclusive and Semileptonic B Decays at SLD written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We set a preliminary 95% C.L. exclusion on the oscillation frequency of B[sub s][sup 0]-[bar B][sub s][sup 0] mixing using a sample of 350,000 hadronic Z[sup 0] decays collected by the SLD experiment at the SLC during the 1997-98 run. The analyses determine the b-hadron flavor at production by exploiting the large forward-backward asymmetry of polarized Z[sup 0][yields] b[bar b] decays as well as information from the hemisphere opposite that of the reconstructed B decay. In one analysis, B decay vertices are reconstructed inclusively with a new topological technique, and separation between B[sub s][sup 0] and[bar B][sub s][sup 0] decays exploits the B[sub s][sup 0][yields] D[sub s][sup -] cascade charge structure. In the other analysis, semileptonic decays are selected and the B decay point is reconstructed by intersecting a lepton track with the trajectory of a topologically reconstructed D meson. The two analyses are combined with a third analysis described elsewhere to exclude the following values of the B[sub s][sup 0]-[bar B][sub s][sup 0] mixing oscillation frequency:[Delta]m[sub s]

Download or read book Time Dependent B sub S bar B sub S Mixing Using Inclusive and Semileptonic B Decays at SLD written by and published by . This book was released on 1999 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: We set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}°-{bar B}{sub s}° mixing using a sample of 350,000 hadronic Z° decays collected by the SLD experiment at the SLC during the 1997-98 run. The analyses determine the b-hadron flavor at production by exploiting the large forward-backward asymmetry of polarized Z° 2!b{bar b} decays as well as information from the hemisphere opposite that of the reconstructed B decay. In one analysis, B decay vertices are reconstructed inclusively with a new topological technique, and separation between B{sub s}° and {bar B}{sub s}° decays exploits the B{sub s}° 2!D{sub s}− cascade charge structure. In the other analysis, semileptonic decays are selected and the B decay point is reconstructed by intersecting a lepton track with the trajectory of a topologically reconstructed D meson. The two analyses are combined with a third analysis described elsewhere to exclude the following values of the B{sub s}°-{bar B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}

Download or read book Time Dependent B0s Anti B0s Mixing Using Inclusive and Semileptonic B Decays at SLD written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}° - {bar B}{sub s}° mixing using a sample of 400,000 hadronic Z° decays collected by the SLD experiment at the SLC between 1996 and 1998. The analyses determine the b-hadron flavor at production by exploiting the large forward-backward asymmetry of polarized Z° 2!b{bar b} decays as well as information from the hemisphere opposite that of the reconstructed B decay. In one analysis, B decay vertices are reconstructed inclusively with a topological technique, and separation between B{sub s}° and {bar B}{sub s}° decays exploits the B{sub s}° 2!D{sub s}− cascade charge structure. In the other analysis, semileptonic decays are selected and the B decay point is reconstructed by intersecting a lepton track with the trajectory of a topologically reconstructed D meson. The two analyses are combined with a third analysis described elsewhere to exclude the following values of the B{sub s}° - {bar B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}

Download or read book Measurement of Time dependent B sub D degrees bar B sub D degrees Mixing Using Inclusive Semileptonic Decays written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The time dependence of B[sub d][sup 0] - W[sub d][sup o] mixing has been observed in events containing high-P[sub t] leptons using a highly inclusive vertexing method to determine the B decay position. The initial state B hadron flavor was determined using the large forward-backward asymmetry provided by the highly polarized electron beam of SLC in combination with a jet charge technique. From a sample of 150,000 hadronic Z[degrees] decays observed in the SLD detector at the SLC between 1993 and 1995, a preliminary analysis of the mass difference between the two Bo mass eigenstates yields[Delta]m[sub d]= 0.520[+-] 0.072(stat)[+-] 0.035(syst) ps[sup -1].

Download or read book Measurement of Time dependent B sub D bar B sub D Mixing Using Inclusive Semileptonic Decays written by and published by . This book was released on 1996 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: The time dependence of B{sub d}° - W{sub d}{sup o} mixing has been observed in events containing high-P{sub t} leptons using a highly inclusive vertexing method to determine the B decay position. The initial state B hadron flavor was determined using the large forward-backward asymmetry provided by the highly polarized electron beam of SLC in combination with a jet charge technique. From a sample of 150,000 hadronic Z° decays observed in the SLD detector at the SLC between 1993 and 1995, a preliminary analysis of the mass difference between the two Bo mass eigenstates yields [Delta]m{sub d} = 0.520 ± 0.072(stat) ± 0.035(syst) ps−1.

Download or read book Time Dependent B sup 0 Bar B sup 0 Mixing at SLD written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We report several preliminary studies of the time dependence of B[sub s][sup 0]-[bar B][sub s][sup 0] and B[sub d][sup 0]-[bar B][sub d][sup 0] mixing using a sample of 400,000 hadronic Z decays collected by the SLD experiment at the SLC. The study of B[sub d][sup 0]-[bar B][sub d][sup 0] mixing determines a value of[Delta]m[sub d]= 0.503[+-] 0.028(stat)[+-] 0.020(sys)ps[sup -1]. In the study of B[sub s][sup 0]-[bar B][sub s][sup 0] mixing, oscillation frequencies up to[Delta]m[sub s]

Download or read book Time Dependent B sub S bar B sub S Oscillations Using Exclusively Reconstructed D sub S Decays at SLD written by and published by . This book was released on 2000 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: We set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}° - {bar B}{sub s}° mixing using a sample of 400,000 hadronic Z° decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B{sub s}° mesons are partially reconstructed by combining a fully reconstructed D{sub s} with other B{sub s}° decay tracks. The D{sub s} decays are reconstructed via the [phi][pi] and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z° 2!b{bar b} decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B{sub s}° at the decay vertex is determined by the charge of the D{sub s}. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B{sub s}°-{bar B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}

Download or read book Time Dependent B Bar B Mixing at SLD 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 report several preliminary studies of the time dependence of B{sub s}°-{bar B}{sub s}° and B{sub d}°-{bar B}{sub d}° mixing using a sample of 400,000 hadronic Z decays collected by the SLD experiment at the SLC. The study of B{sub d}°-{bar B}{sub d}° mixing determines a value of [Delta]m{sub d} = 0.503 ± 0.028(stat) ± 0.020(sys)ps−1. In the study of B{sub s}°-{bar B}{sub s}° mixing, oscillation frequencies up to [Delta]m{sub s}

Download or read book Time Dependent B sub S sup 0 bar B sub S sup 0 Oscillations Using Exclusively Reconstructed D sub S sup Decays at SLD written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We set a preliminary 95% C.L. exclusion on the oscillation frequency of B[sub s][sup 0] -[bar B][sub s][sup 0] mixing using a sample of 400,000 hadronic Z[sup 0] decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B[sub s][sup 0] mesons are partially reconstructed by combining a fully reconstructed D[sub s] with other B[sub s][sup 0] decay tracks. The D[sub s] decays are reconstructed via the[phi][pi] and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z[sup 0][yields] b[bar b] decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B[sub s][sup 0] at the decay vertex is determined by the charge of the D[sub s]. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B[sub s][sup 0]-[bar B][sub s][sup 0] mixing oscillation frequency:[Delta]m[sub s]

Download or read book A Search for Time Dependent B sub S sup 0 bar B sub S sup 0 Oscillations Using Exclusively Reconstructed D sub S sup AT SLD written by and published by . This book was released on 2002 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors set a preliminary 95% C.L. exclusion on the oscillation frequency of B[sub s][sup 0] -[bar B][sub s][sup 0] mixing using a sample of 400,000 hadronic Z[sup 0] decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B[sub s][sup 0] mesons are partially reconstructed by combining a fully reconstructed D[sub s] with other B[sub s][sup 0] decay products. The D[sub s] decays are reconstructed via the[phi][pi] and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z[sup 0][yields] b[bar b] decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B[sub s][sup 0] at the decay vertex is determined by the charge of the D[sub s]. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B[sub s][sup 0]-[bar B][sub s][sup 0] mixing oscillation frequency:[Delta]m[sub s]

Download or read book A Search for Time Dependent B sub S bar B sub S Oscillations Using Exclusively Reconstructed D sub S AT SLD written by and published by . This book was released on 2002 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors set a preliminary 95% C.L. exclusion on the oscillation frequency of B{sub s}° - {bar B}{sub s}° mixing using a sample of 400,000 hadronic Z° decays collected by the SLD experiment at the SLC during the 1996-98 run. In this analysis, B{sub s}° mesons are partially reconstructed by combining a fully reconstructed D{sub s} with other B{sub s}° decay products. The D{sub s} decays are reconstructed via the [phi][pi] and K*K channels. The b-hadron flavor at production is determined by exploiting the large forward-backward asymmetry of polarized Z° 2!b{bar b} decays as well as information from the hemisphere opposite to the reconstructed B decay. The flavor of the B{sub s}° at the decay vertex is determined by the charge of the D{sub s}. A total of 361 candidates passed the final event selection cuts. This analysis excludes the following values of the B{sub s}°-{bar B}{sub s}° mixing oscillation frequency: [Delta]m{sub s}

Download or read book Preliminary Measurement of Time dependent B sub D sup 0 B sub D sup 0 Mixing Using Topology and Charge Selected Semi leptonic B Decays written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The time dependence of B[sub d][sup 0]-B[sub d][sup 0] mixing has been measured using a sample of 150,000 hadronic Z[sup 0] decays collected by the SLD experiment at the SLC between 1993 and 1995. The analysis identifies the semileptonic decays of B mesons with high (p, p[sub t]) leptons and reconstructs the B meson decay length and charge by vertexing the lepton with a partially reconstructed D meson. Vertex charge is used to enrich the selection of neutral over charged B mesons. This method results in a sample of 581 neutral decays with high charge purity. The B candidate is tagged at production with a combined tag that exploits the large polarized b forward-backward asymmetry in conjunction with the opposite hemisphere b jet charge. The final state is tagged by the sign of the high (p, p[sub t]) lepton. From their preliminary analysis the authors find a mass difference between the two B[sub d][sup 0] mass eigenstates of, [Delta]m[sub d]= 0.452[+-] 0.074(stat)[+-] 0.049(syst) ps[sup[minus]1].

Download or read book Search for Bs Mixing with Inclusive Leptons at SLD written by and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have performed a sensitive search for B[sub s][sup 0] -[bar B][sub s][sup 0] mixing using a sample of 400,000 hadronic Z[sup 0] decays collected by the SLD experiment at the SLC between 1996 and 1998. B[sub s][sup 0] and[bar B][sub s][sup 0] events were produced by Z[sup 0][yields] b[bar b] decays where each side hadronized independently to b hadrons. The analysis determines the b hadron flavor at production by exploiting the large polarized forward-backward asymmetry of the b quark as well as information from the hemisphere opposite that of the reconstructed B decay. The final state b quark flavor is determined by the charge of a high p[sub T] lepton. A novel, highly efficient vertexing technique has been developed to locate the B decay vertex by exploiting the high p[sub T] lepton and the semileptonic decay topology. No significant mixing signal was found and the following ranges of the oscillation frequency of B[sub s][sup 0]-[bar B][sub s][sup 0] mixing are excluded at 95% CL from the analysis presented in this thesis:[Delta]m[sub s]

Download or read book Measurement of Time Dependent B D 0 Anti B D 0 Mixing at SLD written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The time dependence of B[sub d][sup o]-[bar B][sub d][sup o] mixing has been observed in events containing high P[sub t] leptons using a highly inclusive vertexing method to determine the B decay length and boost. The initial state B hadron flavour is determined using the large forward-backward asymmetry provided by the highly polarized electron beams of SLC in combination with a jet charge technique. From a sample of 150,000 hadronic Z[sup o] decays observed in the SLD detector at the SLC between 1993 and 1995, the mass difference between the two B[sub d][sup o] mass eigenstates has been measured to be [Delta]m[sub d] = 0.486 [+-] 0.065(stat) [+-] 0.035(syst) ps[sup -1].

Download or read book Preliminary Measurement of Time dependent B sub D B sub D Mixing Using Topology and Charge Selected Semi leptonic B Decays written by and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The time dependence of B{sub d}°-B{sub d}° mixing has been measured using a sample of 150,000 hadronic Z° decays collected by the SLD experiment at the SLC between 1993 and 1995. The analysis identifies the semileptonic decays of B mesons with high (p, p{sub t}) leptons and reconstructs the B meson decay length and charge by vertexing the lepton with a partially reconstructed D meson. Vertex charge is used to enrich the selection of neutral over charged B mesons. This method results in a sample of 581 neutral decays with high charge purity. The B candidate is tagged at production with a combined tag that exploits the large polarized b forward-backward asymmetry in conjunction with the opposite hemisphere b jet charge. The final state is tagged by the sign of the high (p, p{sub t}) lepton. From their preliminary analysis the authors find a mass difference between the two B{sub d}° mass eigenstates of, [Delta]m{sub d} = 0.452 ± 0.074(stat) ± 0.049(syst) ps−1.

Download or read book Measurement of Time Dependent B D 0 Anti B D 0 Mixing at SLD written by Ming Xiong Liu and published by . This book was released on 2003 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The time dependence of B{sub d}{sup o}-{bar B}{sub d}{sup o} mixing has been observed in events containing high P{sub t} leptons using a highly inclusive vertexing method to determine the B decay length and boost. The initial state B hadron flavour is determined using the large forward-backward asymmetry provided by the highly polarized electron beams of SLC in combination with a jet charge technique. From a sample of 150,000 hadronic Z{sup o} decays observed in the SLD detector at the SLC between 1993 and 1995, the mass difference between the two B{sub d}{sup o} mass eigenstates has been measured to be {Delta}m{sub d} = 0.486 {+-} 0.065(stat) {+-} 0.035(syst) ps{sup -1}.