论文标题
$ b^\ pm \ to k^\ pm k^\ mp k^\ pm $中前向后不对称的基于数据的分析
Data-based analysis of Forward-Backward Asymmetry in $B^\pm \to K^\pm K^\mp K^\pm$
论文作者
论文摘要
基于LHCB数据，对衰减$ b^\ pm \ to k^\ pm k^\ mp k^\ pm $中前向后不对称（FBA）的分析是根据LHCB数据进行的。发现发现，对于$ k^+ k^ - $对不变质量观察到的大型FBA左右，可以通过均匀旋转和奇数旋转之间的振幅的干扰来解释1.5 GEV的大约1.5 GEV，前者可以是spin-0 $ f_0 $ f_0（1500）$ resonance $ resonance and spine $ s $ - $ s $ spinecy，而list-1 spincy是一个spinecance，这是一个spincance^spinecance，listance是一个spincance laster。 （1450）$。该分析表明，衰减通道$ b^\ pm \ toρ^0（1450）k^\ pm $的存在，带有$ c \！p $ $ a_ {cp}（b^\ pm \ toρ^0（1450）k^\ pm）=（-3.4 \ pm3.0）\％$ $ $ $ $。这与Babar在Phys中的结论矛盾。 Rev. D 85，112010，根据该分析显示SPIN-1共振$ρ^0（1450）$没有信号。我们建议我们的实验同事对此渠道进行更仔细的分析。我们还建议在其他三体衰减渠道和迷人的介子中执行FBA（以及FB- $ C \！P $）的测量，因为这有助于共振分析。
An analysis of the Forward-Backward Asymmetry (FBA) in the decay $B^\pm \to K^\pm K^\mp K^\pm$ is carried out based on the LHCb data. It is found that the large FBA observed for the invariant mass of the $K^+ K^-$ pair around 1.5 GeV can be explained by the interference of the amplitudes between the resonances with even and odd spins, where the former can be the spin-0 $f_0(1500)$ resonance plus a non-resonance $s$-wave, while the latter is a spin-1 resonance which is probably $ρ^0 (1450)$. The analysis shows the existence of the decay channel $B^\pm\to ρ^0(1450) K^\pm$, with $C\!P$ asymmetry of $A_{CP}(B^\pm\to ρ^0(1450) K^\pm)=(-3.4\pm3.0)\%$. This is in contradiction with the conclusion of BaBar in Phys. Rev. D 85, 112010, according to which the analysis showed no signal of the spin-1 resonance $ρ^0(1450)$. We suggest our experimental colleagues to perform a closer analysis to this channel. We also suggest to perform the measurements of the FBAs (as well as the FB-$C\!P$As) in other three-body decay channels of beauty and charmed mesons, as it is helpful for resonance analysis.
