标题： FNAL E773在中性K介子系统中的CPT检验 显示英文标题

标题： CPT Tests in the Neutral Kaon System by FNAL E773

摘要： FNAL实验E773测量了中性K介子衰变中CP破坏参数eta_{+-}和eta_{00}的相位Phi_{+-} = (43.35 +- 0.70 +- 0.79) 度和Phi_{00}-Phi_{+-} = (0.67 +- 0.85 +- 1.1) 度。 这些初步结果检验了CPT对称性，未发现违反的证据。 此外，我们还给出了Delta m = m_L - m_S = (0.5286 +- 0.0029 +- 0.0022)*E+10 hbar/秒和tau_S = (0.8929 +- 0.0014 +- 0.0014)*E-10 秒的初步测量结果。 上述结果的第一种误差为统计误差，第二种误差为系统误差。 显示英文摘要

摘要： The FNAL experiment E773 has measured the phases Phi_{+-} = (43.35 +- 0.70 +- 0.79) degree and Phi_{00}-Phi_{+-} = (0.67 +- 0.85 +- 1.1) degree of the CP violating parameters eta_{+-} and eta_{00} in the decay of neutral kaons into two charged or neutral pions. These preliminary results test CPT symmetry and show no evidence for a violation. In addition we present a preliminary measurement of Delta m = m_L - m_S = (0.5286 +- 0.0029 +- 0.0022)*E+10 hbar/sec and tau_S = (0.8929 +- 0.0014 +- 0.0014)*E-10 sec. The first errors are statistical and the second errors are systematic for above results.