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Abstract / Description of output
A measurement of the CP-violating observables from B± → D∗K± and B± →D∗π± decays is presented, where D∗(D) is an admixture of D∗0 and ¯D∗0 (D0 and ¯D0) states and is reconstructed through the decay chains D∗ → Dπ0/γ and D → K0S π+π−/K0S K+K−.
The measurement is performed by analysing the signal yield variation across the D decay
phase space and is independent of any amplitude model. The data sample used was col-
lected by the LHCb experiment in proton-proton collisions and corresponds to a total
integrated luminosity of 9 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV. The CKM
angle γ is determined to be (69+13−14)◦ using the measured CP-violating observables. The
hadronic parameters rD∗K±B , rD∗π±B , δD∗K±B , δD∗π±B , which are the ratios and strong phase differences between favoured and suppressed B± decays, are also reported.
The measurement is performed by analysing the signal yield variation across the D decay
phase space and is independent of any amplitude model. The data sample used was col-
lected by the LHCb experiment in proton-proton collisions and corresponds to a total
integrated luminosity of 9 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV. The CKM
angle γ is determined to be (69+13−14)◦ using the measured CP-violating observables. The
hadronic parameters rD∗K±B , rD∗π±B , δD∗K±B , δD∗π±B , which are the ratios and strong phase differences between favoured and suppressed B± decays, are also reported.
| Original language | English |
|---|---|
| Article number | 13 |
| Pages (from-to) | 1-31 |
| Number of pages | 31 |
| Journal | Journal of High Energy Physics |
| Volume | 2023 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 1 Dec 2023 |
Keywords / Materials (for Non-textual outputs)
- B Physics
- CKM Angle Gamma
- CP Violation
- Hadron-Hadron Scattering