Download or read book Search for Bs Mu mu and Bd Mu mu Decays with 2fb 1 of Ppbar Collisions written by and published by . This book was released on 2007 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors have performed a search for B{sub s}° →??− and B° →?+?− decays in p{bar p} collisions at √s = 1.96 TeV using 2 fb−1 of integrated luminosity collected by the CDF II detector at the Fermilab Tevatron Collider. The observed number of B{sub s}° and B° candidates is consistent with background expectations. The resulting upper limits on the branching fractions are?(B{sub s}° →?+?−)
Download or read book Search for B0 s Mu Mu and B0 d Mu Mu Decays in P Anti p Collisions at S 1 2 written by D. Acosta and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors report on a search for B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -} and B{sub d}{sup 0} {yields} {mu}{sup +}{mu}{sup -} decays in p{bar p} collisions at {radical}s = 1.96 TeV using 171 pb{sup -1} of data collected by the CDF II experiment at the Fermilab Tevatron Collider. The decay rates of these rare processes are sensitive to contributions from physics beyond the Standard Model. One event survives all the selection requirements, consistent with the background expectation. They derive branching ratio limits of {Beta}(B{sub s}{sup 0} {yields} {mu}{sup +}{mu}{sup -})
Download or read book Search for B0 s Mu Mu and B0 d Mu Mu Decays in P Anti p Collisions at S 1 2 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for B0 s Mu Mu and B0 d Mu Mu Decays in P Anti p Collisions at S 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 report on a search for B{sub s}° →??− and B{sub d}° →?+?− decays in p{bar p} collisions at √s = 1.96 TeV using 171 pb−1 of data collected by the CDF II experiment at the Fermilab Tevatron Collider. The decay rates of these rare processes are sensitive to contributions from physics beyond the Standard Model. One event survives all the selection requirements, consistent with the background expectation. They derive branching ratio limits of?(B{sub s}° →?+?−)
Download or read book Search for the Decays B0d mu mu B0s mu mu and B0s mu mu phi in Pp Collisions at square Root Of S written by Thomas Speer and published by . This book was released on 2000 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for B s D rightarrow mu mu Decays with 10 fb of p overline p Collisions written by and published by . This book was released on 2013 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for the rare decays of B$^0$$_s$→ [mu]+ [mu]- and B$^0$$_d$ → + [mu]+ [mu]- is presented in p$\bar{p}$ collisions at √s=1.96 TeV corresponding to 10 fb-1 of integrated luminosity collected by the CDF II detector. The observed number of B$^0$$_d$ candidates is consistent with background-only expectations and yields an upper limit on the branching fraction B(B$^0$$_d$ → [mu]+ [mu]-) of 4.2 x 10-9 at 95% confidence level. An excess is observed for the B0s signal region. The probability that background processes alone could produce such an excess or larger is 0.94%. The probability that the combination of background and the expected standard model rate B$^0$$_s$ → [mu]+ [mu]- could produce such an excess or larger is 6.8%. These data are used to determine a central value of B(B$^0$$_s$ → [mu]+ [mu]-) = (1:3+0.9 -0.7) 10-8 as well as a two sided limit at 90% C.L. of 2:2 10-9
Download or read book Search for Bs D Mu Mu Decays with 10 FB of Pp Collisions written by Walter Hopkins and published by . This book was released on 2013 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for the rare decays of B0 [RIGHTWARDS ARROW] [MICRO SIGN]+ [MICRO SIGN][-] and B0 [RIGHTWARDS ARROW] [MICRO SIGN]+ [MICRO SIGN][-] is presented in p p collis d [SQUARE ROOT] sions at s=1.96 TeV corresponding to 10 fb[-]1 of integrated luminosity collected by the CDF II detector. The observed number of B0 candidates is consistent with d background-only expectations and yields an upper limit on the branching fraction B(B0 [RIGHTWARDS ARROW] [MICRO SIGN]+ [MICRO SIGN][-]) of 4.2 x 10[-]9 at 95% confidence level. An excess is observed d for the B0 signal region. The probability that background processes alone could s produce such an excess or larger is 0.94%. The probability that the combination of background and the expected standard model rate B0 [RIGHTWARDS ARROW] [MICRO SIGN]+ [MICRO SIGN][-] could produce s such an excess or larger is 6.8%. These data are used to determine a central value of B(B0 [RIGHTWARDS ARROW] [MICRO SIGN]+ [MICRO SIGN][-]) = (1.3+0.9) x 10[-]8 as well as a two sided limit at 90% C.L. s [-]0 7 of 2.2 x 10[-]9
Download or read book Search for B0 sub sub 2 and B0 sub d sub 2 mu mu Decays in P Anti p Collisions with CDF II written by and published by . This book was released on 2005 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report on a search for B0s → ?+ ?- and B0d → mu+mu- decays in p anti-p collisions at √s = 1.96 TeV using 364.4 pb -1 of data collected by the CDF II dectector at Fermilab Tevatron Collider. After applying all selection requirements, we observe no candidates inside the B0s or B0d mass windows. The resulting upper limits on the branching fractions are ?(B0s → ?+?-) 1.5 x 10sup-7/sup and ?(B0subd/sub → ?+?-) 3.9 x 10
Download or read book Search for B s and B to Dimuon Decays in Pp Collisions at 7 TeV written by and published by . This book was released on 2011 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: A search for the rare decays B(s) to dimuons and B0 to dimuons is performed in pp collisions at sqrt(s)=7 TeV, with a data sample corresponding to an integrated luminosity of 1.14 inverse femtobarns, collected by the CMS experiment at the LHC. In both cases, the number of events observed after all selection requirements is consistent with expectations from background and standard-model signal predictions. The resulting upper limits on the branching fractions are B(B(s) to mu+̂ mu-̂)
Download or read book Search for Bs Mu Mu at written by and published by . This book was released on 2007 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: We report results from a search for the decay B°{sub S} →??− using 1.3 fb−1 of p{bar p} collisions at √s = 1.96 TeV collected by the D0 experiment at the Fermilab Tevatron Collider. We find two candidate events, consistent with the expected background of 1.24 ± 0.99, and set an upper limit on the branching fraction of B(B{sub S}° →?+?−)
Download or read book Search for the Rare Decay B s 0 to mu mu at written by and published by . This book was released on 2013 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Search for B yields X mu sup mu sup and B sup 0 yields mu sup mu sup Decays in P anti P Collisions At radical S written by and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We have searched for the flavor-changing neutral current decays b[yields] X[mu][sup+][mu][sup -] and B[sup 0][yields][mu][sup+][mu][sup -] in p[anti p] collisions at[radical]s= 1.8 TeV with the D0 detector at Fermilab. Using our observed[mu][sup+][mu][sup -] mass spectrum and the measured b production cross section we determine the 90% confidence limit for the branching fraction B(b[yields] s[mu][sup+][mu][sup -])
Download or read book Search for the Rare Decays B Mu Mu K B0 Mu Mu K 0 892 and B0 s Mu Mu Phi at CDF written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors search for b → s??− transitions in B meson (B+, B°, or B{sub s}°) decays with 924 pb−1 of p{bar p} collisions at √s = 1.96 TeV collected with the CDF II detector at the Fermilab Tevatron. They find excesses with significances of 4.5, 2.9, and 2.4 standard deviations in the B+ →?+?−K+, B° →?+?−K*(892)°, and B{sub s}° →?+?−? decay modes, respectively. Using B → J/?h (h - K+, K*(892)°,?) decays as normalization channels, they report branching fractions for the previously observed B+ and B° decays as normalization channels, they report branching fractions for the previously observed B+ and B° decays,?(B+ →?+?−K+) = (0.59 ± 0.15 ± 0.04) x 10−6, and?(B° →?+?−K*(892)°) = (0.81 ± 0.30 ± 0.10) x 10−6, where the first uncertainty is statistical, and the second is systematic. These measurements are consistent with the world average results, and are competitive with the best available measurements. They set an upper limit on the relative branching fraction?(B{sub s}°→?+?−?)/?(B{sub s}°→J/??)
Download or read book Study of the Rare Decays of B 0 s and B 0 Into Muon Pairs from Data Collected During the LHC Run 1 with the ATLAS Detector written by and published by . This book was released on 2016 with total page 31 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, a study of the decays B0s 2![mu]+[mu]- and B0 2![mu]+[mu]- has been performed using data corresponding to an integrated luminosity of 25 fb-1 of 7 and 8 TeV proton-proton collisions collected with the ATLAS detector during the LHC Run 1. For the B0 dimuon decay, an upper limit on the branching fraction is set at B(B0 2![mu]+[mu]- )
Download or read book Search for the Rare Decay B s to mu mu written by and published by . This book was released on 2013 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Measurement of the B 0 mathrmS to mu mu Decay Properties and Search for the B 0 to mu mu Decay in Proton proton Collisions at sqrts written by Armen Tumasyan and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book B Mu Mu and B Tau Nu Decays written by and published by . This book was released on 2009 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: An overview of the most recent experimental results on Branching Fractions of rare fully leptonic B decays is given; constraints on the parameters of some New Physics models are presented. Perspectives with new accelerator programs are discussed.
