Study of CP violation in B0 → DK⋆(892)0 decays with D → Kπ(ππ), ππ(ππ), and KK final states
A measurement of CP-violating observables associated with the interference of B0 → D0K⋆(892)0 and B 0 →...
| Main Authors: | , , , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Springer Science and Business Media LLC
2024
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| Online Access: | https://hdl.handle.net/1721.1/154931 |
| Summary: | A measurement of CP-violating observables associated with the interference of B0 → D0K⋆(892)0 and
B
0
→
D
¯
0
K
⋆
892
0
$$ {B}^0\to {\overline{D}}^0{K}^{\star }{(892)}^0 $$
decay amplitudes is performed in the D0 → K∓π±(π+π−), D0 → π+π−(π+π−), and D0 → K+K− final states using data collected by the LHCb experiment corresponding to an integrated luminosity of 9 fb−1. CP-violating observables related to the interference of
B
s
0
→
D
0
K
¯
⋆
892
0
$$ {B}_s^0\to {D}^0{\overline{K}}^{\star }{(892)}^0 $$
and
B
s
0
→
D
¯
0
K
¯
⋆
892
0
$$ {B}_s^0\to {\overline{D}}^0{\overline{K}}^{\star }{(892)}^0 $$
are also measured, but no evidence for interference is found. The B0 observables are used to constrain the parameter space of the CKM angle γ and the hadronic parameters
r
B
0
DK
⋆
$$ {r}_{B^0}^{DK\star } $$
and
δ
B
0
DK
⋆
$$ {\delta}_{B^0}^{DK\star } $$
with inputs from other measurements. In a combined analysis, these measurements allow for four solutions in the parameter space, only one of which is consistent with the world average. |
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