Study of CP violation in B0 → DK⋆(892)0 decays with D → Kπ(ππ), ππ(ππ), and KK final states
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13130_2024_Article_23300.pdf
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Author(s)
Aaij, R.
Abdelmotteleb, A. S. W.
Abellan Beteta, C.
Abudinén, F.
Ackernley, T.
Adeva, B.
Adinolfi, M.
Adlarson, P.
Agapopoulou, C.
Aidala, C. A.
Date Issued
May 3, 2024
Journal
Journal of High Energy Physics
Publisher
Springer Science and Business Media LLC
Citation
The LHCb collaboration., Aaij, R., Abdelmotteleb, A.S.W. et al. Study of CP violation in B0 → DK⋆(892)0 decays with D → Kπ(ππ), ππ(ππ), and KK final states. J. High Energ. Phys. 2024, 25 (2024).
Version
Final published version
Abstract
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.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Terms of Use
Creative Commons Attribution
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DOI of Published Version
https://doi.org/10.1007/jhep05(2024)025
