Showing papers by "Wolfgang Wagner published in 1982"
TL;DR: In this paper, the jet character of the hadronic final states produced ine+e− annihilations is studied in terms of jet measures such as thrust, sphericity, jet opening angle and jet masses, in the energy range 7.7 to 31.6 GeV.
Abstract: The jet character of the hadronic final states produced ine+e− annihilations is studied in terms of jet measures such as thrust, sphericity, jet opening angle and jet masses, in the energy range 7.7 to 31.6 GeV. All distributions and averages have been corrected for detector effects and initial state radiation. The energy dependence of the averages of these jet quantities is used to estimate the contributions due to perturbative QCD and fragmentation effects. Correlations between the jet measures and the multiplicity of charged hadrons are also presented.
28 citations
01 Jun 1982
TL;DR: In this paper, a semi-empirical equation has been established to calculate very accurately the ideal gas heat capacity of molecular oxygen in the temperature range from 30 K to 3000 K. The new equation contains special terms derived from statistical-thermodynamic considerations in order to represent that part of cp0 resulting from the vibration energy of the molecule and the energy of electronic excitation.
Abstract: A semi-empirical equation has been established to calculate very accurately the ideal-gas heat capacity cp0 of molecular oxygen in the temperature range from 30 K to 3000 K. The new equation contains special terms derived from statistical-thermodynamic considerations in order to represent that part of cp0 resulting from the vibration energy of the molecule and the energy of electronic excitation. The cp0-values calculated with the new equation have been compared with values directly calculated by evaluation of the partition functions for fixed temperatures listed in known tabulations. Because of the “physical” background of the equation extrapolations beyond 3000 K are possible. Corresponding expressions for the ideal-gas enthalpy and entropy of oxygen are also given.
7 citations
TL;DR: In this paper, the electron, muon, and charged-hadron pair production rates in two-phonon interactions for invariant masses above 2.0 GeV were measured.
5 citations