Measurement of the Branching Ratios for the Decays J/[psi] → [rho][pi] and J/[psi] → [gamma][eta]' PDF Download
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![Measurement of the Branching Ratios for the Decays J/[psi] → [rho][pi] and J/[psi] → [gamma][eta]' PDF](https://books.google.com/books/content/images/frontcover/HaZ4zQEACAAJ?fife=w150-h200)
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Languages : en
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![Measurement of the Branching Ratios for the Decays J/[psi] → [rho][pi] and J/[psi] → [gamma][eta]' PDF](https://books.google.com/books/content/images/frontcover/HaZ4zQEACAAJ?fife=w80-h100)
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![Measurement of the branching ratios for the decays J/[psi] (3.1) --> f[omega] and J/[psi] (3.1) --> B[pi] PDF](https://books.google.com/books/content/images/frontcover/rsxltwAACAAJ?fife=w80-h100)
Author: J. Burmester
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Languages : en
Pages : 4
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 [into] F[omega] and J/[psi](3.1) [into] Br PDF](https://books.google.com/books/content/images/frontcover/g066GwAACAAJ?fife=w80-h100)
Author: PLUTO Collaboration
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Category :
Languages : en
Pages : 4
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![Measurement of the Branching Ratios Psi-prime ---] E+ E-, Psi-prime ---] J/psi Pi Pi and Psi-prime ---] J/psi Eta PDF](https://books.google.com/books/content/images/frontcover/WNnQwQEACAAJ?fife=w80-h100)
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Languages : en
Pages : 8
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The authors have measured several branching ratios for?' decay using the data collected by FNAL E835 experiment during year 2000, obtaining?(?' 2!ee−) = 0.0068 ± 0.0001 ± 0.0004,?(?' 2!J/??+?−) = 0.292 ± 0.005 ± 0.018,?(?' 2!J/??°?°) = 0.167 ± 0.005 ± 0.014 and?(?' 2!J/??) = 0.028 ± 0.002 ± 0.002. They also present a measurement of the dipion mass distribution in the decays?' 2!J/???
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Languages : en
Pages : 142
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This thesis reports on a measurement of the branching ratio of the Cabibbo-suppressed decay B$+\atop{u}$ 2!J/[Psi][pi]+, where J/[Psi] 2![mu]+[mu]-
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Languages : en
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Results of studies of selected radiative decays of the psi' to charmonium and non-charmonium states which decay into photons are presented. These studies were performed using a sample of 1.8 x 106 produced psi''s collected by the Crystal Ball detector at the SPEAR electron-positron storage ring. The branching ratios of the chi0, chi2, and eta'/sub c/ to two photons have been measured to be (4.5 +- 2.2 +- 2.0) x 10−4, (9.5 +- 2.9 +- 4.5) x 10−4 (first errors statistical, second systematic), and 1 x 10−2 (90% C.L.). The signal from the decay chain psi' .--. .gamma.chi0, chi0 .-->. .pi.°.pi.° has been observed with essentially no background. Using the observed line shape of the radiative photon in this reaction, the full width of the psi0 has been found to be 8.8 +- 1.3 +- 1.5 MeV/c2. In addition, the branching ratios of the chi0 and chi2 to .pi.°.pi.° have been measured to be (3.5 +- 0.3 +- 1.2) x 10−3 and (1.2 +- 0.2 +- 0.4) x 10−3; the branching ratios of the chi0 and chi2 to eta eta have been measured to be (2.8 +- 0.9 +- 1.3) x 10−3 and (8.4 +- 4.2 +- 4.0) x 10−4. The decays of the psi' to four non-charmonium states have been investigated. The branching ratios and upper limits of these decays have been normalized to the branching ratios of the corresponding decays from the J/psi which have been measured using a sample of 2.2 x 106 produced J/psi's collected by the Crystal Ball detector. The ratios of the psi' branching ratios to the J/psi branching ratios for the final states .gamma.eta, .gamma.eta', .gamma.theta, and .gamma.f have been measured to be
![Branching Ratio Measurements of B - J/[psi Eta]K and B± - D0K± with D0 - [pi][pi]−[pi]0 PDF](https://books.google.com/books/content/images/frontcover/B33NSgAACAAJ?fife=w80-h100)
Author: Qinglin Zeng
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Category : Beta decay
Languages : en
Pages : 490
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An experimental study of the decays of the psi'(3684) to other charmonium states is reported. The decays of 106 psi'(3684)'s were observed with the SLAC-LBL Mark II detector at the ee− storage ring SPEAR. Branching ratios have been measured for psi'(3684) decays to .gamma. chi where the chi decays to .gamma. psi(3095) or to hadrons. An upper limit of 0.13% is set on the branching ratio for psi' .-->. .gamma. chi(3455) .-->. .gamma gamma. psi(3095); this is a factor of 6 less than the branching ratio measured by a previous less sensitive experiment. The decay psi' .-->. .gamma. eta/sub c/, eta/sub c/ .-->. hadrons is investigated. The decay psi' .-->. .pi.°psi, which violates isospin conservation, is observed with a branching ratio of (0.15+-0.06)%.
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Languages : en
Pages : 14
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We present a study of B{sub s}° decays to the CP-odd final state J/? f0(980) with J/? →??− and f0(980) →?+?−. Using p{bar p} collision data with an integrated luminosity of 3.8 fb−1 collected by the CDF II detector at the Tevatron we measure a B{sub s}° lifetime of? (B{sub s}° → J/? f0(980)) = 1.70{sub -0.11}{sup +0.12}(stat) ± 0.03(syst) ps. This is the first measurement of the B{sub s}° lifetime in a decay to a CP eigenstate and corresponds in the standard model to the lifetime of the heavy B{sub s}° eigenstate. We also measure the product of branching fractions of B{sub s}° → J/? f0(980) and f0(980) →?+?− relative to the product of branching fractions of B{sub s}° → J/?? and? → K+K− to be R{sub f{sub 0}/?} = 0.257 ± 0.020(stat) ± 0.014(syst), which is the most precise determination of this quantity to date.
