NonleptonicBsto charmonium decays: Analysis in pursuit of determining the weak phaseβs

Abstract

We analyze nonleptonic B s decays to a charmonium state and a light meson, induced by the b ! c " cs transition, which are useful to access the B s -" B s mixing phase s . We use generalized factorization and SUð3Þ F symmetry to relate such modes to correspondent B decay channels. We discuss the feasibility of the measurements in the various channels, stressing the importance of comparing different determinations of s in view of the hints of new physics effects recently emerged in the B s sector. Finally, adopting a general parametrization of new physics contributions to the decay amplitudes, we discuss how to experimentally constrain new physics parameters.

Analysis of the nonleptonic charmonium modes Bs0→J/ψf2′(1525) and Morales1, Quintero2, Vera3 et al. 2017Phys. Rev. D8050View full textAdd to dashboardCite

“…(11) indicates that in vector-tensor modes the orbital angular momentum of the wave L = 1, 2, and 3 are simultaneously allowed, as expected.…”

“…[10], there are some important points that have been overlooked and a more detailed analysis of the K + K − invariant mass distributions and Dalitz plot will be provided in the present study. So far, it is known that there is no satisfactory treatment of nonleptonic B s to charmonium decays at present [11]. Keeping this in mind, the factorization approach is used for the description of the nonleptonic charmonium B s decays under study.…”

“…In Sec. III, we study the branching ratio and polarization fractions of the B The nonleptonic decay mode B 0 s → J/ψV , with V = φ(1020), has been widely considered in previous works (see for instance [11]). We briefly discuss its amplitude, which is written in a form that is convenient to compare with the B 0 s → J/ψf ′ 2 (1525) channel, in Sec.…”

S-wave resonance contributions to theB(s)0→JWang1, Li2, Wang3 et al. 2015Phys. Rev. DSelf Cite

“…For discussions on the B s → J/ψf 0 (980)[f 0 (980) → π + π − ] channel, refer to Refs. [21][22][23][24][25]. The chiral unitary approach including final state interaction [26][27][28] was employed to investigate the B 0 (s) → J/ψπ + π − decays recently.…”

Rare Decays andCPViolation in theBsSystem

“…On the other hand, since the f 0 ≡ f 0 (980) is a scalar J P C = 0 ++ state, the final state is CP-odd so that no angular analysis is required in order to disentangle CP eigenstates as in the case of the B 0 s → J/ψφ decay. Consequently, the analysis is simplified considerably and offers an interesting alternative for the determination of φ s [98,99].…”