Measurement of the branching ratios for the decays J/[psi] (3.1) --> f[omega] and J/[psi] (3.1) --> B[pi]
Author : J. Burmester
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Page : 4 pages
File Size : 42,43 MB
Release : 1977
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Author : J. Burmester
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Page : 4 pages
File Size : 42,43 MB
Release : 1977
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Author : PLUTO Collaboration
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Page : 4 pages
File Size : 27,82 MB
Release : 1977
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Page : pages
File Size : 14,81 MB
Release : 1976
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Page : 142 pages
File Size : 39,5 MB
Release : 1996
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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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Page : 8 pages
File Size : 37,28 MB
Release : 2005
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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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Page : pages
File Size : 40,10 MB
Release : 1988
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Measurements of the two body decays of the J/[psi] into vector and pseudoscalar meson pairs are presented. Using the measured branching ratios, a phenomenological model of J//psi/ decays indicates that the [eta] and [eta]' are composed only of light and strange quarks, without a gluonium contribution in the [eta]' wavefunction. A measurement of J//psi/ .-->. .gamma pi./sup +/.pi./sup -/.pi./sup +/.pi./sup -/ is presented. The f1 (1285) is observed and its spin and parity are investigated. The /eta//sub c/ is observed to decay to /rho/°/rho/°, and first indications of /eta//sub c/ decays to f2f2 are presented. The spin and parity of the /eta//sub c/ are investigated. 5 figs., 3 figs., 1 tab.
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Page : pages
File Size : 43,10 MB
Release : 1981
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Author : Qinglin Zeng
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Page : 490 pages
File Size : 40,60 MB
Release : 2005
Category : Beta decay
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Page : pages
File Size : 14,90 MB
Release : 2002
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We present a measurement of the branching fraction for the decay of the neutral B meson into the final state J/[psi][pi][sup+][pi][sup -]. The data set contains approximately 56 million B[bar B] pairs produced at the[Upsilon](4S) resonance and recorded with the BABAR detector at the PEP-II asymmetric-energy e[sup+]e[sup -] storage ring. The result of this analysis is[Beta](B[sup 0][yields] J/[psi][pi][sup+][pi][sup -])= (4.6[+-] 0.7[+-] 0.6) x 10[sup -5], where the first error is statistical and the second is systematic. In addition we measure[Beta](B[sup 0][yields] J?[psi][rho][sup 0])= (1.6[+-] 0.6[+-] 0.4) x 10[sup -5].
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Page : 8 pages
File Size : 29,46 MB
Release : 2007
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The authors study the decays B° → J/???− and B+ → J/??+?°, including intermediate resonances, using a sample of 382 million B{bar B} pairs recorded by the BABAR detector at the PEP-II e+e− B factory. They measure the branching fractions?(B° → J/??°) = (2.7 ± 0.3 ± 0.17) x 10−5 and?(B+ → J/??+) = (5.0 ± 0.7 ± 0.31) x 10−5. The authors also set the following upper limits at the 90% confidence level:?(B° → J/??+?− non-resonant)