Evidence for a Neutral Meson near 1033 MeV

Possible Existence of a Heavy Neutral Meson

efIiciency of (3.1+0.4)%, compatible with the value e=3.3% computed with the formula given above. Reversely, the experimental result together with the computed efficiency can be considered as a check on the v/c law for the polarization of electrons emitted in p decay. We have made P—y coincidence measurements with Co". The difference in coincidence counting rates (corrected as described in the ...

Neutral Meson Measurement at Phenix

Measurements from the RHIC experiments show strong suppression of high-pT hadrons in central Au+Au collisions. The PHENIX experiment has observed strong suppression of π0 and charged hadron yields in central Au+Au collisions for pT > 5 GeV/c regardless of pT and particle species. The observed suppression is interpreted in terms of energy loss of quarks in a high-density medium. The PHENIX Year-...

Relative yield of charged and neutral heavy meson pairs in e + e − annihilation near threshold

Measurement of Neutral Meson Production in Hadronic

The 7°r, qj, and w meson productions have been studied using 3 million hadronic Z events recorded with L3 detector at LEP. The meson production in the final sample, two-jet and three-jet event samples as well as in each jet have been measured and compared with the JETSET and HERWIG Monte Carlo predictions. The momentum distributions are measured and compared with Monte Carlo prediction and anal...

Cpt Violation , Strings , and Neutral - Meson Systems

Symmetry under the discrete transformation CPT is a general theoretical condition holding for local relativistic field theories of point particles [1]-[7]. This symmetry has been investigated experimentally under different circumstances and to a high degree of precision [8]. The broad theoretical validity of CPT symmetry for particles and the availability of high-precision tests makes CPT viola...