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${{\mathit \Xi}_{{b}}}$ MASSES

${{\mathit \Xi}_{{b}}^{-}}$ MASS

INSPIRE   PDGID:

S060M-

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 5797.0 \pm0.6}$ OUR AVERAGE  Error includes scale factor of 1.7.  See the ideogram below. $5796.70$ $\pm0.39$ $\pm0.23$ AAIJ 2019 AB LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 and 13 TeV $5797.72$ $\pm0.46$ $\pm0.31$ 1 AAIJ 2014 BJ LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8 TeV $5793.4$ $\pm1.8$ $\pm0.7$ 2 AALTONEN 2014 B CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV $5774$ $\pm11$ $\pm15$ 3 ABAZOV 2007 K D0 ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV • • We do not use the following data for averages, fits, limits, etc. • • $5795.8$ $\pm0.9$ $\pm0.4$ 4 AAIJ 2013 AV LHCB Repl. by AAIJ 2019AB $5796.7$ $\pm5.1$ $\pm1.4$ 5 AALTONEN 2011 X CDF Repl. by AALTONEN 2014B $5790.9$ $\pm2.6$ $\pm0.8$ 6 AALTONEN 2009 AP CDF Repl. by AALTONEN 2014B $5792.9$ $\pm2.5$ $\pm1.7$ 7 AALTONEN 2007 A CDF Repl. by AALTONEN 2009AP 1  Reconstructed in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit \Xi}_{{c}}^{0}}{{\mathit \pi}^{-}}$ , ${{\mathit \Xi}_{{c}}^{0}}$ $\rightarrow$ ${{\mathit p}}{{\mathit K}^{-}}{{\mathit K}^{-}}{{\mathit \pi}^{+}}$ decays. Reference ${{\mathit \Lambda}_{{b}}^{0}}$ mass $5619.30$ $\pm0.34$ MeV from AAIJ 2014AA. 2  Uses ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \Xi}^{-}}$ and ${{\mathit \Xi}_{{c}}^{0}}{{\mathit \pi}^{-}}$ decays. 3  Observed in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \Xi}^{-}}$ decays with $15.2$ $\pm4.4$ ${}^{+1.9}_{-0.4}$ candidates, a significance of 5.5 sigma. 4  Measured in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \Xi}^{-}}$ decays. 5  Measured in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit \Xi}_{{c}}^{0}}{{\mathit \pi}^{-}}$ with $25.8$ ${}^{+5.5}_{-5.2}$ candidates. 6  Measured in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \Xi}^{-}}$ decays with $66$ ${}^{+14}_{-9}$ candidates. 7  Observed in ${{\mathit \Xi}_{{b}}^{-}}$ $\rightarrow$ ${{\mathit J / \psi}}{{\mathit \Xi}^{-}}$ decays with $17.5$ $\pm4.3$ candidates, a significance of 7.7 sigma.

${{\mathit \Xi}_{{b}}^{-}}$ MASS (MeV)

References:

AAIJ 2019AB PR D99 052006 Measurement of the mass and production rate of $\Xi_b^-$ baryons AAIJ 2014BJ PRL 113 242002 Precision Measurement of the Mass and Lifetime of the ${{\mathit \Xi}_{{b}}^{-}}$ Baryon AALTONEN 2014B PR D89 072014 Mass and Lifetime Measurements of Bottom and Charm Baryons in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV AAIJ 2013AV PRL 110 182001 Measurement of the ${{\mathit \Lambda}_{{b}}^{0}}$, ${{\mathit \Xi}_{{b}}^{-}}$ and ${{\mathit \Omega}_{{b}}^{-}}$ Baryon Masses AALTONEN 2011X PRL 107 102001 Observation of the ${{\mathit \Xi}_{{b}}^{0}}$ Baryon AALTONEN 2009AP PR D80 072003 Observation of the ${{\mathit \Omega}_{{b}}^{-}}$ Baryon and Measurement of the Properties of the ${{\mathit \Xi}_{{b}}^{-}}$ and ${{\mathit \Omega}_{{b}}^{-}}$ Baryons AALTONEN 2007A PRL 99 052002 Observation and Mass Measurement of the Baryon ${{\mathit \Xi}_{{b}}^{-}}$ ABAZOV 2007K PRL 99 052001 Direct Observation of the Strange ${\mathit {\mathit b}}$ Baryon ${{\mathit \Xi}_{{b}}^{-}}$

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