Erratum

Cheng, L.; Sawchuk, A.A.

doi:10.1006/jpdc.1993.1016

Cited by 2 publications

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“…Moreover, in covariant LFQM [31], the spurious contribution which depends on the orientation of the light front is elegantly eliminated by including zero-mode contributions. This covariant model has been successfully extended to study the decay constants and form factors of various mesons [37][38][39][40][41][42][43][44][45][46][47][48][49]. Through this study of B c → B s J in LFQM, we believe that one will not only obtain the information as regards the decay dynamics in the presence of a heavy spectator but will also provide a side-check for the classification of the heavy-light mesons.…”

Section: Introductionmentioning

confidence: 99%

$$B_c\rightarrow B_{sJ}$$ B c → B s J

2016

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We suggest to study the B s and its excitations B s J in the B c decays. We calculate the B c → B s J and B c → B J form factors within the covariant light-front quark model, where the B s J and B J denote an s-wave or p-wavebs andbd meson, respectively. The form factors at q 2 = 0 are directly computed while their q 2 -distributions are obtained by extrapolation. The derived form factors are then used to study semileptonic B c → (B s J , B J )¯ ν decays, and nonleptonic B c → B s J π . Branching fractions and polarizations are predicted in the standard model. We find that the branching fractions are sizable and might be accessible at the LHC experiment and future high-energy e + e − colliders with a high luminosity at the Z -pole. The future experimental measurements are helpful to study the nonperturbative QCD dynamics in the presence of a heavy spectator and also of great value for the study of spectroscopy.

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Section: Introductionmentioning

confidence: 99%

$$B_c\rightarrow B_{sJ}$$ B c → B s J

2016

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“…Theoretically, the WA contributions with possible strong phase have attracted a lot of attention in the past few years, for instance, in Refs. [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. Traditionally, both ρ A and φ A are treated as universal parameters for different kinds of annihilation topologies.…”

Section: Introductionmentioning

confidence: 99%

Study of the weak annihilation contributions in charmless $$\varvec{B_s\rightarrow VV}$$ B s → V V decays

Chang

et al. 2017

Eur. Phys. J. C

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In this paper, in order to probe the spectatorscattering and weak annihilation contributions in charmless B s → V V (where V stands for a light vector meson) decays, we perform the χ 2 -analyses for the endpoint parameters within the QCD factorization framework, under the constraints from the measuredB s → ρ 0 φ, φ K * 0 , φφ and K * 0K * 0 decays. The fitted results indicate that the endpoint parameters in the factorizable and nonfactorizable annihilation topologies are non-universal, which is also favored by the charmless B → P P and PV (where P stands for a light pseudo-scalar meson) decays observed in previous work. Moreover, the abnormal polarization fractions f L ,⊥ (B s → K * 0K * 0 ) = (20.1±7.0)%, (58.4±8.5)% measured by the LHCb collaboration can be reconciled through the weak annihilation corrections. However, the branching ratio ofB s → φ K * 0 decay exhibits a tension between the data and theoretical result, which dominates the contributions to χ 2 min in the fits. Using the fitted endpoint parameters, we update the theoretical results for the charmless B s → V V decays, which will be further tested by the LHCb and Belle-II experiments in the near future.

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Erratum

Cited by 2 publications

References 0 publications

$$B_c\rightarrow B_{sJ}$$ B c → B s J

$$B_c\rightarrow B_{sJ}$$ B c → B s J

Study of the weak annihilation contributions in charmless $$\varvec{B_s\rightarrow VV}$$ B s → V V decays

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