Observation of B ̄ (s) 0 → J / ψ f 1 (1285) decays and measurement of the f 1 (1285) mixing angle
- R. Aaij,
- B. Adeva,
- M. Adinolfi,
- C. Adrover,
- A. Affolder,
- Z. Ajaltouni
- National Institute for Subatomic Physics,
- University of Santiago de Compostela,
- University of Bristol,
- CNRS,
- University of Liverpool,
- Université Clermont Auvergne
Research Output:
Contribution to journal
Article
Peer-reviewPublication metrics
Metrics
SciVal
FWCI
1.14
SciVal
Author count
669
SciVal
Citations
38
SciVal
Paper percentile
74
Abstract
Decays of B̄s0 and B̄0 mesons into J/ψ π+π-π+π- final states, produced in pp collisions at the LHC, are investigated using data corresponding to an integrated luminosity of 3 fb-1 collected with the LHCb detector. B̄(s)0→J/ψf1(1285) decays are seen for the first time, and the branching fractions are measured. Using these rates, the f1(1285) mixing angle between strange and nonstrange components of its wave function in the qq̄ structure model is determined to be ±(24.0-2.6-0.8+3.1+0.6). Implications on the possible tetraquark nature of the f1(1285) are discussed.
Publication Information
Output type
Research Output:
Contribution to journal
Article
Peer-reviewOriginal language
EnglishArticle number
091802Journal (Volume, Issue Number)
Physical Review Letters (Volume 112, Issue 9)Publication milestones
- Published - 04/03/2014
Publication status
Published - 04/03/2014
ISSN
0031-9007Publication IDs
- Scopus: 84896355777
- WOS: 000332687200018
Funding Details
FundersFunding numbers
Deutsche Forschungsgemeinschaft
-National Natural Science Foundation of China
-NSF
1205805
NSF
-STFC
PP/E000347/1, ST/H001069/2, ST/H001026/1, ST/K001256/1, ST/K001361/1, ST/K001604/1, ST/G005974/1, LHCb, ST/L006340/1, ST/L001144/1, ST/K00073X/1, ST/K004646/1, ST/K502236/1, ST/H001093/2, ST/M001431/1, ST/K001418/1, ST/K00140X/1, ST/M001474/1, LHCb Upgrades, ST/H001093/1, ST/J004332/1, ST/I505572/1, ST/K003410/1, ST/K00137X/1, ST/H001026/2, ST/F007094/1, ST/L003392/1
STFC
-SNF
141096
SNF
-