Measurement of the CKM angle γ in B± → DK*(892)± decays

De Angelis, C.;Dettori, F.;Fabiano, F.;Manca, G.;Oldeman, R.;Saitta, B.;
2025-01-01

Abstract

Measurements of CP observables and the CKM angle γ are performed in B± → DK∗ (892)± decays, where D represents a superposition of D0 and D 0 states, using the LHCb dataset collected during Run 1 (2011–2012) and Run 2 (2015–2018). A study of this channel is presented with the D meson reconstructed in two-body fnal states K±π ∓, K+K− and π +π −; four-body fnal states K±π ∓π ±π ∓ and π +π −π +π −; and threebody fnal states K0 S π +π − and K0 SK+K−. This analysis includes the frst observation of the suppressed B± → [π ±K∓]DK∗± and B± → [π ±K∓π ±π ∓]DK∗± decays. The combined result gives γ = (63 ± 13)◦ .
2025
Inglese
2025
2
Esperti anonimi
scientifica
B Physics; CKM Angle Gamma; CP Violation; Hadron-Hadron Scattering
Null, Null; Aaij, R.; Abdelmotteleb, A. S. W.; Abellan Beteta, C.; Abudinén, F.; Ackernley, T.; Adefisoye, A. A.; Adeva, B.; Adinolfi, M.; Adlarson, P ...espandi
1.1 Articolo in rivista
info:eu-repo/semantics/article
1 Contributo su Rivista::1.1 Articolo in rivista
262
1132
open
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