论文标题

使用$ \ hat {t} $ - $ b^{0} \ to p \ bar p k^{+}π^{ - } $搜索$ cp $违规

Search for $CP$ violation using $\hat{T}$-odd correlations in $B^{0} \to p \bar p K^{+} π^{-}$ decays

论文作者

LHCb collaboration

论文摘要

搜索$ cp $和$ p $违反魅力四体$ b^{0} \ to p \ bar p k^{+}π^{ - } $衰减的搜索是使用三型不对称的观察力进行的。它基于LHCB实验收集的Proton-Proton碰撞数据,质量为$ 7 $,$ 8 $和$ 13 $ TEV,对应于$ 8.4 $ fb $^{ - 1} $的总体集成发光度。 $ cp $ - 和$ p $ - 义务的不对称是在集成相空间和特定区域中测量的。违反$ CP $的证据没有证据。 $ p $ - 违规行为的意义为5.8标准偏差

A search for $CP$ and $P$ violation in charmless four-body $B^{0} \to p \bar p K^{+} π^{-}$ decays is performed using triple-product asymmetry observables. It is based on proton-proton collision data collected by the LHCb experiment at centre-of-mass energies of $7$, $8$ and $13$ TeV, corresponding to a total integrated luminosity of $8.4$ fb$^{-1}$. The $CP$- and $P$-violating asymmetries are measured both in the integrated phase space and in specific regions. No evidence is seen for $CP$ violation. $P$-parity violation is observed at a significance of 5.8 standard deviations

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