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${{\mathit \Sigma}{(1840)}}$ MASS

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B001M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ \approx1840}$ OUR ESTIMATE $1798$ or $1802$ 1 MARTIN 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $1720$ $\pm30$ 2 BAILLON 1975 IPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ $1840$ $\pm10$ LANGBEIN 1972 IPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel 1  The two MARTIN 1977 values are from a T-matrix pole and from a Breit-Wigner fit. 2  From solution 1 of BAILLON 1975; not present in solution 2.

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