Charm rescattering contribution in rare B-c(+) -> K+K-pi(+) decay

Author(s)

Bediaga, I ^[1] ; Frederico, T. ^[2] ; Magalhaes, P. C. ^{[1, 3]}

Affiliation

^[1] Ctr Brasileiro Pesquisas Fis, BR-22290180 Rio De Janeiro, RJ - Brazil

^[2] DCTA, Inst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[3] Tech Univ Munich, Dept Phys, D-85748 Garching - Germany

• Document type: Journal article
• Source: Physics Letters B; v. 785, p. 581-584, OCT 10 2018.
• Web of Science Citations: 0

Abstract

Following the experimental results from LHCb on the rare decay B-c(+) -> K+K-pi(+), we investigate the possibility where this process is dominated by a double charm rescattering. The B-c decay to double charm channels have a weak topology that is favoredin comparison with the direct production of K-K+pi(+) in the final state, suppressed by quark annihilation. The decay amplitude for B+ c. K-K+ p+ with Bcdecaying first to double charm channels is described by charm hadronic triangle loops, which reach the final state of interest after D (D) over bar -> K (K) over bar or D+ D-s(-)-> pi(+)K(-)transitions. We show that these processes give rise to non-resonant amplitudes with a clear signature in the Dalitz plot. In a near future, the new data from LHCb run II will be able to confirme if the main hypotheses of this work is correct and the dominant mechanism to produce K+K+pi(-) from the decay of B+ cis through charm rescattering. (C) 2018 The Authors. Published by Elsevier B.V. (AU)

• FAPESP's process: 17/05660-0 - Theoretical studies of the structure and reactions of exotic nuclei and many-body systems
• Grantee: Brett Vern Carlson
• Support Opportunities: Research Projects - Thematic Grants