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${{\mathit \Sigma}_{{b}}}$ MASS

${{\mathit \Sigma}_{{b}}^{+}}$ MASS

INSPIRE   PDGID:

S026M+

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 5810.56 \pm0.25}$ OUR AVERAGE $5810.55$ $\pm0.11$ $\pm0.23$ 1 AAIJ 2019 A LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV $5811.3$ ${}^{+0.9}_{-0.8}$ $\pm1.7$ 2 AALTONEN 2012 F CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV • • We do not use the following data for averages, fits, limits, etc. • • $5807.8$ ${}^{+2.0}_{-2.2}$ $\pm1.7$ 3 AALTONEN 2007 K CDF Repl. by AALTONEN 2012F 1  Measured using fully reconstructed ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \Lambda}_{{c}}^{+}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ decays. 2  Measured using fully reconstructed ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit \pi}^{-}}$ and ${{\mathit \Lambda}_{{c}}^{+}}$ $\rightarrow$ ${{\mathit K}^{-}}{{\mathit \pi}^{+}}$ decays. 3  Observed four ${{\mathit \Lambda}_{{b}}^{0}}{{\mathit \pi}^{\pm}}$ resonances in the fully reconstructed decay mode ${{\mathit \Lambda}_{{b}}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{c}}^{+}}{{\mathit \pi}^{-}}$ , where ${{\mathit \Lambda}_{{c}}^{+}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ .

References:

AAIJ 2019A PRL 122 012001 Observation of two resonances in the $\Lambda_b^0 \pi^\pm$ systems and precise measurement of $\Sigma_b^\pm$ and $\Sigma_b^{*\pm}$ properties AALTONEN 2012F PR D85 092011 Measurement of the Masses and Widths of the Bottom Baryons ${{\mathit \Sigma}_{{b}}^{\pm}}$ and ${{\mathit \Sigma}_{{b}}^{*\pm}}$ AALTONEN 2007K PRL 99 202001 Observation of the Heavy Baryons ${{\mathit \Sigma}_{{b}}}$ and ${{\mathit \Sigma}_{{b}}^{*}}$

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