Observation of the Decay J/[psi] [changes Into] [eta]c [changes Into] [eta][phi][phi] and Spin-parity Assignment for the [eta]c |
Common terms and phrases
algorithm angular resolution approximately axial BADC Barrel shower counter beam Bhabha scattered branching ratio cables calibration cell number cham charge division charmonium cm thick cosmic rays CRUZ The University Crystal Ball current division data logging dE/dx decaying K's drift chamber drift velocity efficiency electronics end-plates energy feedthroughs field wires Figure flow rate flux return fraction of decayed glueballs gluon hadronic Hexcell high voltage hits holes hypothesis inner layer input invariant mass left-right ambiguity length Lorentz angle M(nc magnetic main drift chamber measurement methane MeV/c momentum mounted mrad per track MTACS Muon outer layers outputs parameters particles photon plates pulse height radially radiative decays radius reconstruction resolution sense wires signal solid curve staggered stainless steel stainless steel guard steel guard wires stereo layers storage ring Sylguard time-of-flight time-zero TOF Counter track finding trigger triplet tube University Library μη