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${{\mathit \chi}_{{b1}}{(3P)}}$ MASS

INSPIRE   PDGID:

M206M

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $10513.42$ $\pm0.41$ $\pm0.53$ 1 SIRUNYAN 2018 N CMS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit X}}$ • • We do not use the following data for averages, fits, limits, etc. • • $10515.7$ ${}^{+2.2}_{-3.9}$ ${}^{+1.5}_{-2.1}$ 169 2 AAIJ 2014 BG LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit X}}$ $10512.1$ $\pm2.1$ $\pm0.9$ 351 3 AAIJ 2014 BG LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit X}}$ $10511.3$ $\pm1.7$ $\pm2.5$ 182 4 AAIJ 2014 BI LHCB ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit X}}$ $10530$ $\pm5$ $\pm9$ 5 AAD 2012 A ATLS ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit X}}$ $10551$ $\pm14$ $\pm17$ 5 ABAZOV 2012 Q D0 ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit \gamma}}{{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{{\mathit X}}$ 1  Systematic error includes an additional 0.5 MeV for the uncertainty on the ${{\mathit \Upsilon}{(3S)}}$ mass. Also measures ${\mathit m}_{{{\mathit \chi}_{{b2}}{(3P)}}}–{\mathit m}_{{{\mathit \chi}_{{b1}}{(3P)}}}$ = $10.60$ $\pm0.64$ $\pm0.17$ MeV. A total of 372 ${{\mathit \chi}_{{b1}}{(3P)}}$ and ${{\mathit \chi}_{{b2}}{(3P)}}$ events was observed. 2  From ${{\mathit \chi}_{{b1}}{(3P)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(1S,2S)}}{{\mathit \gamma}}$ transitions assuming ${\mathit m}_{{{\mathit \chi}_{{b2}}{(3P)}}}–{\mathit m}_{{{\mathit \chi}_{{b1}}{(3P)}}}$ = $10.5$ $\pm1.5$ MeV and allowing for $\pm30\%$ variation in the ${{\mathit \chi}_{{b2}}{(3P)}}$ production rate relative to that of ${{\mathit \chi}_{{b1}}{(3P)}}$. 3  The mass of the ${{\mathit \chi}_{{b1}}{(3P)}}$ state obtained by combining the results of AAIJ 2014BG with that of AAIJ 2014BI. The first uncertainty is experimental and the second attributable to the unknown mass splitting, assumed to be ${\mathit m}_{{{\mathit \chi}_{{b2}}{(3P)}}}–{\mathit m}_{{{\mathit \chi}_{{b1}}{(3P)}}}$ = $10.5$ $\pm1.5$ MeV. 4  From ${{\mathit \chi}_{{b1}}{(3P)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(3S)}}{{\mathit \gamma}}$ transition assuming ${\mathit m}_{{{\mathit \chi}_{{b2}}{(3P)}}}–{\mathit m}_{{{\mathit \chi}_{{b1}}{(3P)}}}$ = $10.5$ $\pm1.5$ MeV. 5  The mass barycenter of the merged lineshapes from the $\mathit J = 1$ and 2 states.

References:

SIRUNYAN 2018N PRL 121 092002 Observation of the $\chi_\mathrm{b1}$(3P) and $\chi_\mathrm{b2}$(3P) and measurement of their masses AAIJ 2014BG JHEP 1410 088 Measurement of the ${{\mathit \chi}_{{b}}{(3P)}}$ Mass and of the Relative Rate of ${{\mathit \chi}_{{b1}}{(1P)}}$ and ${{\mathit \chi}_{{b2}}{(1P)}}$ Production AAIJ 2014BI EPJ C74 3092 Study of ${{\mathit \chi}_{{b}}}$ Meson Production in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 and 8 TeV and Observation of the Decay ${{\mathit \chi}_{{b}}{(3P)}}$ $\rightarrow$ ${{\mathit \Upsilon}{(3S)}}{{\mathit \gamma}}$ AAD 2012A PRL 108 152001 Observation of a New ${{\mathit \chi}_{{b}}}$ State in Radiative Transitions to ${{\mathit \Upsilon}{(1S)}}$ and ${{\mathit \Upsilon}{(2S)}}$ at ATLAS ABAZOV 2012Q PR D86 031103 Observation of a Narrow Mass State Decaying into ${{\mathit \Upsilon}{(1S)}}+{{\mathit \gamma}}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV