论文标题
追求$λ_c\ toΔK$衰减内的新物理
Pursuit of new physics within the $Λ_c\to ΔK$ decays
论文作者
论文摘要
我们指出$ cp $不对称的链条衰减中的$λ_c^+\至δ^+k（t）（\至toπ^+π^ - ）$是由$λ^+_ c \ toδ^+++++++++} K^ - $λ^ - $，$λ^+eu的分支分支确定$λ^+_ c \ toδ^{0} k^+$模式下的Isospin对称性。避免了循环引起的数量和$ su（3）_f $破坏耐药性效果的歧义。 $ CP $不对称中的$λ_C^+$衰减到$δ^+$和中性Kaons中，通过实验确认了中性Kaons，我们可以检查它是否超出了标准型号，或验证$ cp $ violative效应是由于Cabibbo型和doubly cabbbobobbo-Bosplysplated AmpliT的干扰而导致的amplip amplit amplit ampplit kaon所产生的效果。分支部分的未来测量在减少不确定性方面起着至关重要的作用。
We point out the $CP$ asymmetry in the chain decay of $Λ_c^+\to Δ^+K(t)(\to π^+π^-)$ is determined by the branching fractions of $Λ^+_c\to Δ^{++} K^-$, $Λ^+_c\to Δ^{+} K^0_{S,L}$ and $Λ^+_c\to Δ^{0} K^+$ modes under the isospin symmetry. The ambiguities from loop-induced quantities and $SU(3)_F$ breaking hadronic effects are avoided. Once the $CP$ asymmetry in the $Λ_c^+$ decays into $Δ^+$ and neutral kaons is confirmed by experiments, we can check if it is beyond the Standard Model, or verify the $CP$-violating effect resulted from the interference between the Cabibbo-favored and the doubly Cabibbo-suppressed amplitudes with the neutral kaon mixing. Future measurements of branching fractions play a critical role in reducing the uncertainties.
