${{\mathit \Lambda}_{{b}}{(5912)}^{0}}$ MASS

INSPIRE search
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ 5912.19 \pm0.17}$ OUR AVERAGE
$5912.19 \pm0.03 \pm0.17$ 1
AAIJ
2020Q
LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$5912.32 \pm0.12 \pm0.17$ 2
SIRUNYAN
2020K
CMS ${{\mathit p}}{{\mathit p}}$ at 13 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$5912.20 \pm0.13 \pm0.17$ 3, 4
AAIJ
2012AL
LHCB Repl. by AAIJ 2020Q
1  AAIJ 2020Q measures $\mathit m({{\mathit \Lambda}_{{b}}{(5912)}^{0}}$ ) $−$ $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $292.589$ $\pm0.029$ $\pm0.010$ MeV. We have adjusted the measurement to our best value of $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $5619.60$ $\pm0.17$ (MeV). Our first error is their experiment's error and our second error is the systematic error from using our best values.
2  SIRUNYAN 2020K measures $\mathit m({{\mathit \Lambda}_{{b}}{(5912)}^{0}}$ ) $−$ $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $292.72$ $\pm0.12$ $\pm0.01$ MeV. We have adjusted the measurement to our best value of $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $5619.60$ $\pm0.17$ (MeV). Our first error is their experiment's error and our second error is the systematic error from using our best values.
3  Observed in ${{\mathit \Lambda}_{{b}}{(5912)}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ decays with $17.6$ $\pm4.8$ candidates with a significance of 5.2 sigma.
4  AAIJ 2012AL measures $\mathit m({{\mathit \Lambda}_{{b}}{(5912)}^{0}}$ ) $−$ $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $292.60$ $\pm0.12$ $\pm0.04$ MeV. We have adjusted the measurement to our best value of $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $5619.60$ $\pm0.17$ (MeV). Our first error is their experiment's error and our second error is the systematic error from using our best values.
References:
AAIJ 2020Q
JHEP 2006 136 Observation of a new baryon state in the $ {\Lambda}_{\mathrm{b}}^0{\pi}^{+}{\pi}^{-} $ mass spectrum
SIRUNYAN 2020K
PL B803 135345 Study of excited $\Lambda_\mathrm{b}^0$ states decaying to $\Lambda_\mathrm{b}^0\pi^+\pi^-$ in proton-proton collisions at $\sqrt{s}=$ 13 TeV
AAIJ 2012AL
PRL 109 172003 Observation of Excited ${{\mathit \Lambda}_{{b}}^{0}}$ Baryons