Very Rare Neutral K-Long Meson Decays (Physics)

这项提议寻求对布鲁克海文国家实验室实验791的继续支持，该实验是对中性K介子非常罕见的衰变的搜索。这个实验有一次工程运行和一次物理运行。另一次物理实验预计将在今年冬天进行。沃西基担任发言人两年，目前仍担任领导职务。该实验寻找K零长衰变为介子和电子(受轻子数守恒禁止)和介子和介子(受标准模型抑制)。后一种模式将用良好的统计数据进行研究；前一种模式是一种质量规模的探测器，远远高于与目前的加速器直接反应所能达到的水平。另一个要研究的模式是中性介子、电子和正电子。这是一种CP破坏衰变；有可能是直接CP破坏可能在此衰变中占主导地位。

This proposal seeks support for continuation of Brookhaven National Laboratory experiment 791, a search for very rare decays of the neutral K meson. This experiment has had an engineering run and one physics run. Another physics run is anticipated this winter. Wojcicki was the spokesman for two years and remains in a leadership role. The experiment searches for K zero-long decaying into muon and electron (forbidden by lepton number conservation) and into muon and muon (suppressed by the standard model). The latter mode will be studied with good statistics; the former is a probe to mass scales much higher than can be achieved in direct reactions with current accelerators. An additional mode to be studied is into neutral pion, electron and positron. This is a CP violating decay; it is possible that direct CP violation may dominate in this decay.