Measurement of CP asymmetries and branching fraction ratios of B- decays to two charm mesons

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Zunica, G. (författare): Univ Manchester, Dept Phys & Astron, Manchester, Lancs, England

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Springer, 2023
2023
Engelska.
Ingår i: Journal of High Energy Physics (JHEP). - : Springer. - 1126-6708 .- 1029-8479. ; :9

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Abstract Ämnesord

Stäng

The CP asymmetries of seven B- decays to two charm mesons are measured using data corresponding to an integrated luminosity of 9 fb(-1) of proton-proton collisions collected by the LHCb experiment. Decays involving a D*(0) or D-s(*-) meson are analysed by reconstructing only the D-0 or D-s(-) decay products. This paper presents the first measurement of A(CP) (B- -> D-s(*-) D-0) and A(CP) (B- -> D-s(-) D*(0)), and the most precise measurement of the other five CP asymmetries. There is no evidence of CP violation in any of the analysed decays. Additionally, two ratios between branching fractions of selected decays are measured.

Av författaren/redakt...: Aaij, R.; Adlarson, Patrik; Eklund, Lars; Kupsc, Andrzej; Zunica, G.

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