An analysis of Bs decays in the left-right-symmetric model with spontaneous CP violation

Non-leptonic B-s decays into CP eigenstates that are caused by (b) over bar --> (c) over bar c (s) over bar quark-level transitions, such as B-s --> Ds+Ds-, J/psi eta(()'()) or J/psi phi, provide a powerful tool to search for "new physics", as the CP-violating effects in these modes are tiny in the Standard Model. We explore these effects for a particular scenario of new physics, the left-right-symmetric model with spontaneous CP violation. In our analysis, we take into account all presently available experimental constraints on the parameters of this model, i.e. those implied by K- and B-decay observables: we find that CP asymmetries as large as O(40%) may arise in the B-s channels, whereas the left-right-symmetric model favours a small CP asymmetry in the "gold-plated" mode B-d --> J/psi K-s. Such a pattern would be in favour of B-physics experiments at hadron machines, where the B-s modes an very accessible. (C) 2000 Elsevier Science B.V. All rights reserved.