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Observation of the $\chi_b(3P)$ state at LHCb in $pp$ collisions at $\sqrt{s}=7$~TeV
We report the observation of the new quarkonium $\chi_b(3P)$ state through its decay into $\varUpsilon(1S) \gamma$, with $\varUpsilon(1S)\rightarrow\mu^+\mu^-$, using 0.9~fb$^{-1}$ of data collected with the LHCb detector at $\sqrt{s}=7$~TeV.
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| Lenguaje: | eng |
| Publicado: |
2012
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| Acceso en línea: | http://cds.cern.ch/record/1456078 |