D-> h + h-pi0的CP含量
CP content of D->h+h-pi0
摘要:
通过CLEO-c实验收集的量子相关psi(3770)-> DDbar衰变被用于执行F+的测量,自共轭衰变D-> pi + pi-pi0和D-> K + K-pi0的分数CP偶含量。对于pi + pi-pi0和K + K-pi0,分别获得0.973 +/-0.017和0.732 +/-0.055的值。特别地,D-> pi + pi-pi 0的高CP偶含量使其成为用于提高伽马的精度和用于测量D衰变中的CP破坏的有希望的模式。
英文摘要:
Quantum-correlated psi(3770)->DDbar decays collected by the CLEO-c experiment are used to perform measurements of F+, the fractional CP-even content of the self-conjugate decays D->pi+pi-pi0 and D->K+K-pi0. Values of 0.973+/-0.017 and 0.732+/-0.055 are obtained for pi+pi-pi0 and K+K-pi0, respectively. The high CP-even content of D->pi+pi-pi0, in particular, makes this a promising mode for improving the precision on gamma and for measurements of CP violation in D decay.
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