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Further studies of GEM performance in dense noble gases
V. Aulchenko, A. Bondar, A. Buzulutskov +3
We further study the performance of single, double and triple Gas Electron Multiplier (GEM) detectors in pure noble gases at high pressures, in the range of 1-10 atm. We confirm th…
Measurement of Branching Fractions and Charge Asymmetries for Two-Body B Meson Decays with Charmonium
Belle Collaboration
We report branching fractions and charge asymmetries for exclusive decays of charged and neutral B mesons to two-body final states containing a charmonium meson, J/psi or psi(2S).…
Study of ion feedback in multi-GEM structures
A. Bondar, A. Buzulutskov, L. Shekhtman +1
We study the feedback of positive ions in triple and quadruple Gas Electron Multiplier (GEM) detectors. The effects of GEM hole diameter, detector gain, applied voltages, number of…
Measurement of Branching Fractions for Decays
F. Fang, T. Hojo
We report measurements of branching fractions for charged and neutral decays where the meson is reconstructed in the $K_S^0 K^{\pm}π^{\mp}, K^+ K^- π^0, K^{*0} K…
Measurement of the Electroweak Penguin Process B --> X(s) l+ l-
J. Kaneko, Belle Collaboration
We report the first measurement of the branching fraction for the inclusive decay B --> X(s) l+ l-, where l is either an electron or a muon and X(s) is a hadronic recoil system tha…
Observation of B -> D^{(*)} K^- K^{0(*)} decays
Belle Collaboration, A. Drutskoy
The B -> D^{(*)} K^- K^{(*)0} decays have been observed for the first time. The branching fractions of the B -> D^{(*)} K^- K^{(*)0} decay modes are measured. Significant signals a…