Model-independent measurement of charm mixing parameters in B ¯ ? D 0 ( ? K S 0 p + p - ) µ - ? ¯ µ X decays
Model-independent measurement of charm mixing parameters in B ¯ ? D 0 ( ? K S 0 p + p - ) µ - ? ¯ µ X decays
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B 中魅力混合参数的模型独立测量?
DOI:
10.1103/physrevd.108.052005
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发表时间:
2023
影响因子:
5
通讯作者:
Aaij R
中科院分区:
文献类型:
--
作者:
Aaij R
A measurement of charm mixing and CP-violating parameters is reported, using B→ D0 (→ KS0π+ π-) μ-νμX decays reconstructed in proton-proton collisions collected by the LHCb experiment during the years 2016 to 2018, corresponding to an integrated luminosity of 5.4 fb-1. The measured mixing and CP-violating parameters are xCP=[4.29±1.48 (stat)±0.26 (syst)]× 10-3, yCP=[12.61±3.12 (stat)±0.83 (syst)]× 10-3, Δx=[-0.77±0.93 (stat)±0.28 (syst)]× 10-3, Δy=[3.01±1.92 (stat)±0.26 (syst)]× 10-3. The results are complementary to and consistent with previous measurements. A combination with the recent LHCb analysis of D∗+→ D0 (→ KS0π+ π-) π+ decays is reported.