${{\mathit \Lambda}_{{b}}{(5920)}^{0}}$ MASS

INSPIRE search
VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ 5920.09 \pm0.17}$ OUR AVERAGE
$5920.09 \pm0.02 \pm0.17$ 1
AAIJ
2020Q
LHCB ${{\mathit p}}{{\mathit p}}$ at 7, 8, 13 TeV
$5920.16 \pm0.07 \pm0.17$ 2
SIRUNYAN
2020K
CMS ${{\mathit p}}{{\mathit p}}$ at 13 TeV
• • We do not use the following data for averages, fits, limits, etc. • •
$5919.4 \pm0.5 \pm0.2$ 3, 4
AALTONEN
2013V
CDF ${{\mathit p}}{{\overline{\mathit p}}}$ at 1.96 TeV
$5920.00 \pm0.09 \pm0.17$ 5, 6
AAIJ
2012AL
LHCB Repl. by AAIJ 2020Q
1  AAIJ 2020Q measures $\mathit m({{\mathit \Lambda}_{{b}}{(5920)}^{0}}$ ) $−$ $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $300.492$ $\pm0.019$ $\pm0.010$ 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 $\mathit m({{\mathit \Lambda}_{{b}}{(5920)}^{0}}$ ) $−$ $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $300.56$ $\pm0.07$ $\pm0.01$ 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  Measured in ${{\mathit \Lambda}_{{b}}{(5920)}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ decays with $17.3$ ${}^{+5.3}_{-4.6}$ events, with a significance of 3.5 sigma.
4  AALTONEN 2013V measures $\mathit m({{\mathit \Lambda}_{{b}}{(5920)}^{0}}$ )$−\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ )$−2\mathit m({{\mathit \pi}}$ ) = $20.68$ $\pm0.35$ $\pm0.30$ MeV. We have adjusted the measurement to our best values of $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $5619.60$ $\pm0.17$ (MeV) and $\mathit m({{\mathit \pi}}$ ) = $139.57039$ $\pm0.00018$ (MeV). Our first error is their experiment's error and our second error is the systematic error from using our best values.
5  Observed in ${{\mathit \Lambda}_{{b}}{(5920)}^{0}}$ $\rightarrow$ ${{\mathit \Lambda}_{{b}}^{0}}{{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ decays with $52.5$ $\pm8.1$ candidates with a significance of 10.2 sigma.
6  AAIJ 2012AL measures $\mathit m({{\mathit \Lambda}_{{b}}{(5920)}^{0}}$ ) $−$ $\mathit m({{\mathit \Lambda}_{{b}}^{0}}$ ) = $300.40$ $\pm0.08$ $\pm0.04$ 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
AALTONEN 2013V
PR D88 071101 Evidence for a Bottom Baryon Resonance ${{\mathit \Lambda}^{*}_{{b}}}$ in CDF Data
AAIJ 2012AL
PRL 109 172003 Observation of Excited ${{\mathit \Lambda}_{{b}}^{0}}$ Baryons