Abstract
Abstract
Nowadays High Energy Physics experiments can accumulate unprecedented statistics of heavy flavour decays that allows to apply new methods, based on the study of very rare phenomena, which used to be just desperate. In this paper we propose a new method to measure composition of K0-$$ \overline{K} $$
K
¯
0, produced in a decay of heavy hadrons. This composition contains important information, in particular about weak and strong phases between amplitudes of the produced K0 and $$ \overline{K} $$
K
¯
0. We consider possibility to measure these parameters with time-dependent K0 → π+π− analysis. Due to C P -violation in kaon mixing time-dependent decay rates of K0 and $$ \overline{K} $$
K
¯
0 differ, and the initial amplitudes revealed in the CP-violating decay pattern. We perform phenomenological study of K0 decay evolution initially produced as a combination $$ a\left.|{K}^0(t)\right\rangle +b\left.|{\overline{K}}^0(t)\right\rangle $$
a
K
0
t
+
b
K
¯
0
t
, where a and b, complex amplitudes, could also be dependent on decay time of heavy mother particle. In particular we consider cases of charmed hadrons decays: D+ → K0π+, $$ {D}_s^{+} $$
D
s
+
→ K0K+, Λ → pK0 and with some assumptions D0 → K0π0. This can be used to test the sum rule for charmed mesons and to obtain input for the full constraint of the two body amplitudes of D-mesons.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Reference25 articles.
1. Y. Grossman and D.J. Robinson, SU(3) Sum Rules for Charm Decay, JHEP 04 (2013) 067 [arXiv:1211.3361] [INSPIRE].
2. LHCb collaboration, Observation of CP-violation in Charm Decays, Phys. Rev. Lett. 122 (2019) 211803 [arXiv:1903.08726] [INSPIRE].
3. M. Golden and B. Grinstein, Enhanced CP-violations in Hadronic Charm Decays, Phys. Lett. B 222 (1989) 501 [INSPIRE].
4. G. Hiller, M. Jung and S. Schacht, SU(3)-flavor anatomy of nonleptonic charm decays, Phys. Rev. D 87 (2013) 014024 [arXiv:1211.3734] [INSPIRE].
5. J. Brod, Y. Grossman, A.L. Kagan and J. Zupan, A Consistent Picture for Large Penguins in D → π+π−, K? + K−, JHEP 10 (2012) 161 [arXiv:1203.6659] [INSPIRE].
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献