Abstract
Recently the ATLAS Collaboration at CERN reported on the measurement of the branching ratio RΛb=Γ(Λb0→ψ(2S)Λ0)/Γ(Λb0→J/ψΛ0). The measured branching ratio RΛb=0.501±0.033(stat)±0.019(syst) was found to be lower than the covariant quark model prediction of RΛb=0.8±0.1 calculated by us recently. We present a detailed analysis of the branching ratio RΛb using a model-independent framework for the heavy-to-light form factors based on results from our previous papers.
| Original language | English |
|---|---|
| Article number | 114008 |
| Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
| Volume | 92 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 1 Dec 2015 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Gutsche, T., Ivanov, M. A., Körner, J. G., Lyubovitskij, V. E., & Santorelli, P. (2015). Towards an assessment of the ATLAS data on the branching ratio Γ (Λb0 →ψ (2S) Λ0) / Γ (Λb0 →j /ψ Λ0). Physical Review D - Particles, Fields, Gravitation and Cosmology, 92(11), [114008]. https://doi.org/10.1103/PhysRevD.92.114008