QCD radiative corrections to muon polarization asymmetry in KL--> micro+ micro- decay.
QCD radiative corrections to muon polarization asymmetry in KL--> micro+ micro- decay.
复制标题
QCD 辐射校正 KL 中 μ 子偏振不对称性--> 微微衰变。
DOI：
10.1103/physrevd.41.3388
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发表时间：
1990
期刊：
影响因子：
--
通讯作者：
Ng
中科院分区：
文献类型：
--
作者：
Huang;Viswanathan;Geng;Ng
We have studied both perturbative and nonperturbative QCD radiative corrections to the {ital CP}-violating polarization asymmetry {ital P}{sub {ital L}} of the outgoing muon in {ital K}{sub {ital L}}{r arrow}{mu}{sup +}{mu}{sup {minus}} decay due to a light spin-0 boson and heavy {ital t} quark. We find that the perturbative QCD effects vanish whereas the nonperturbative ones as calculated by the sum-rule method give significant enhancement in the energy region {mu}{lt}1 GeV/{ital c}{sup 2} to {ital P}{sub {ital L}}.
We have studied both perturbative and nonperturbative QCD radiative corrections to the {ital CP}-violating polarization asymmetry {ital P}{sub {ital L}} of the outgoing muon in {ital K}{sub {ital L}}{r arrow}{mu}{sup +}{mu}{sup {minus}} decay due to a light spin-0 boson and heavy {ital t} quark. We find that the perturbative QCD effects vanish whereas the nonperturbative ones as calculated by the sum-rule method give significant enhancement in the energy region {mu}{lt}1 GeV/{ital c}{sup 2} to {ital P}{sub {ital L}}.