Production of the Y(4260) state in B meson decay
We calculate the branching ratio for the production of the meson Y(4260) in the decay B−→Y(4260)K−. We use QCD sum rules approach and we consider the Y(4260) to be a mixture between charmonium and exotic tetraquark, [c¯q¯][qc], states with JPC=1−−. Using the value of the mixing angle determined prev...
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Elsevier
2015-07-01
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| Series: | Physics Letters B |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269315003597 |
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doaj-92174a5b5af54b0aafd0c8498059ade62020-11-24T22:35:22ZengElsevierPhysics Letters B0370-26931873-24452015-07-01747C838710.1016/j.physletb.2015.05.022Production of the Y(4260) state in B meson decayR.M. Albuquerque0M. Nielsen1C.M. Zanetti2Instituto de Física Teórica, Universidade Estadual Paulista (IFT-UNESP), R. Dr. Bento Teobaldo Ferraz, 271-Bl. II Sala 207, 01140-070 São Paulo, SP, BrazilInstituto de Física, Universidade de São Paulo, C.P. 66318, 05389-970 São Paulo, SP, BrazilFaculdade de Tecnologia, Universidade do Estado do Rio de Janeiro, Rod. Presidente Dutra Km 298, Pólo Industrial, 27537-000, Resende, RJ, BrazilWe calculate the branching ratio for the production of the meson Y(4260) in the decay B−→Y(4260)K−. We use QCD sum rules approach and we consider the Y(4260) to be a mixture between charmonium and exotic tetraquark, [c¯q¯][qc], states with JPC=1−−. Using the value of the mixing angle determined previously as: θ=(53.0±0.5)∘, we get the branching ratio B(B→Y(4260)K)=(1.34±0.47)×10−6, which allows us to estimate an interval on the branching fraction 3.0×10−8<BY<1.8×10−6 in agreement with the experimental upper limit reported by BaBar Collaboration.http://www.sciencedirect.com/science/article/pii/S0370269315003597 |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
R.M. Albuquerque M. Nielsen C.M. Zanetti |
| spellingShingle |
R.M. Albuquerque M. Nielsen C.M. Zanetti Production of the Y(4260) state in B meson decay Physics Letters B |
| author_facet |
R.M. Albuquerque M. Nielsen C.M. Zanetti |
| author_sort |
R.M. Albuquerque |
| title |
Production of the Y(4260) state in B meson decay |
| title_short |
Production of the Y(4260) state in B meson decay |
| title_full |
Production of the Y(4260) state in B meson decay |
| title_fullStr |
Production of the Y(4260) state in B meson decay |
| title_full_unstemmed |
Production of the Y(4260) state in B meson decay |
| title_sort |
production of the y(4260) state in b meson decay |
| publisher |
Elsevier |
| series |
Physics Letters B |
| issn |
0370-2693 1873-2445 |
| publishDate |
2015-07-01 |
| description |
We calculate the branching ratio for the production of the meson Y(4260) in the decay B−→Y(4260)K−. We use QCD sum rules approach and we consider the Y(4260) to be a mixture between charmonium and exotic tetraquark, [c¯q¯][qc], states with JPC=1−−. Using the value of the mixing angle determined previously as: θ=(53.0±0.5)∘, we get the branching ratio B(B→Y(4260)K)=(1.34±0.47)×10−6, which allows us to estimate an interval on the branching fraction 3.0×10−8<BY<1.8×10−6 in agreement with the experimental upper limit reported by BaBar Collaboration. |
| url |
http://www.sciencedirect.com/science/article/pii/S0370269315003597 |
| work_keys_str_mv |
AT rmalbuquerque productionofthey4260stateinbmesondecay AT mnielsen productionofthey4260stateinbmesondecay AT cmzanetti productionofthey4260stateinbmesondecay |
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