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 |
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ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Towards an assessment of the ATLAS data on the branching ratio Γ (Λb0 →ψ (2S) Λ0) / Γ (Λb0 →j /ψ Λ0). / Gutsche, Thomas; Ivanov, Mikhail A.; Körner, Jürgen G.; Lyubovitskij, Valery E.; Santorelli, Pietro.
In: Physical Review D - Particles, Fields, Gravitation and Cosmology, Vol. 92, No. 11, 114008, 01.12.2015.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Towards an assessment of the ATLAS data on the branching ratio Γ (Λb0 →ψ (2S) Λ0) / Γ (Λb0 →j /ψ Λ0)
AU - Gutsche, Thomas
AU - Ivanov, Mikhail A.
AU - Körner, Jürgen G.
AU - Lyubovitskij, Valery E.
AU - Santorelli, Pietro
PY - 2015/12/1
Y1 - 2015/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84950327336&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84950327336&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.92.114008
DO - 10.1103/PhysRevD.92.114008
M3 - Article
VL - 92
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
SN - 1550-7998
IS - 11
M1 - 114008
ER -