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${{\mathit \Sigma}{(1620)}}$ MASS

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B032M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ 1600\text{ to }1650\text{ }(\approx1620) }$ OUR ESTIMATE $1681$ $\pm6$ SARANTSEV 2019 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $1600$ $\pm15$ ZHANG 2013 A DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $1600$ $\pm6$ 1 MORRIS 1978 DPWA ${{\mathit K}^{-}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{-}}$ $1608$ $\pm5$ 2 CARROLL 1976 DPWA Isospin-1 total $\sigma{}$ $1630$ $\pm10$ LANGBEIN 1972 IPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $1620$ KIM 1971 DPWA K-matrix analysis • • We do not use the following data for averages, fits, limits, etc. • • $1633$ $\pm10$ 3 CARROLL 1976 DPWA Isospin-1 total $\sigma{}$ 1  MORRIS 1978 obtains an equally good fit without including this resonance. 2  Total cross-section bump with ($\mathit J$+1/2) $\Gamma _{{\mathrm {el}}}$ $/$ $\Gamma _{{\mathrm {total}}}$ is 0.06 seen by CARROLL 1976. 3  Total cross-section bump with ($\mathit J$+1/2) $\Gamma _{{\mathrm {el}}}$ $/$ $\Gamma _{{\mathrm {total}}}$ is 0.04 seen by CARROLL 1976.

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