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

INSPIRE   PDGID:

S019M

The fit uses ${{\mathit \Sigma}^{+}}$, ${{\mathit \Sigma}^{0}}$, ${{\mathit \Sigma}^{-}}$, and ${{\mathit \Lambda}}$ mass and mass-difference measurements.

VALUE (MeV) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 1189.37 \pm0.07}$ OUR FIT  Error includes scale factor of 2.2. $\bf{ 1189.37 \pm0.06}$ OUR AVERAGE  Error includes scale factor of 1.8.  See the ideogram below. $1189.33$ $\pm0.04$ 607 1 BOHM 1972 EMUL $1189.16$ $\pm0.12$ HYMAN 1967 HEBC $1189.61$ $\pm0.08$ 4205 SCHMIDT 1965 HBC See note with ${{\mathit \Lambda}}$ mass $1189.48$ $\pm0.22$ 58 2 BHOWMIK 1964 EMUL $1189.38$ $\pm0.15$ 144 2 BARKAS 1963 EMUL 1  BOHM 1972 is updated with our 1973 ${{\mathit K}^{-}}$, ${{\mathit \pi}^{-}}$, and ${{\mathit \pi}^{0}}$ masses (Reviews of Modern Physics 45 S1 (1973)). 2  These masses have been raised 30 keV to take into account a 46 keV increase in the proton mass and a 21 keV decrease in the ${{\mathit \pi}^{0}}$ mass (note added 1967 edition, Reviews of Modern Physics 39 1 (1967)).

${{\mathit \Sigma}^{+}}$ mass (MeV)

References:

BOHM 1972 NP B48 1 Determination of the Masses of the Charged ${{\mathit \Sigma}}$ Hyperons Also IIHE-73.2 Nov A Determination of the Masses of the Charged ${{\mathit \Sigma}}$ Hyperons $−$ a Reevaluation HYMAN 1967 PL 25B 376 Mass Measurements Using the Range Energy Relation in a Helium Bubble Chamber SCHMIDT 1965 PR 140 B1328 Precise Hyperon Masses BHOWMIK 1964 NP 53 22 The Lifetimes of Charged ${{\mathit \Sigma}}$ Hyperons BARKAS 1963 PRL 11 26 Resolution of the ${{\mathit \Sigma}^{-}}$-Mass Anomaly Also Thesis UCRL 9450 Charged ${{\mathit \Sigma}}$-Hyperon Production and Decay: Energetics, Lifetimes, and Branching Ratios