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${{\mathit \Sigma}{(1770)}}$ MASS

INSPIRE   PDGID:

B100M

VALUE (MeV) DOCUMENT ID TECN  COMMENT $\bf{ \approx1770}$ OUR ESTIMATE $1738$ $\pm10$ 1 GOPAL 1977 DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel $1770$ $\pm20$ 2 BAILLON 1975 IPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ $1772$ 3 KANE 1972 DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$ 1  Required to fit the isospin-1 total cross section of CARROLL 1976 in the ${{\overline{\mathit K}}}{{\mathit N}}$ channel. The addition of new ${{\mathit K}^{-}}{{\mathit p}}$ polarization and ${{\mathit K}^{-}}{{\mathit n}}$ differential cross-section data in GOPAL 1980 find it to be more consistent with the ${{\mathit \Sigma}{(1660)}}{\mathit P}_{\mathrm 11}$. 2  From solution 1 of BAILLON 1975 ; not present in solution 2. 3  Not required in KANE 1974 , which supersedes KANE 1972 .

References:

GOPAL 1977 NP B119 362 Partial Wave Analyses of ${{\overline{\mathit K}}}{{\mathit N}}$ Two Body Reactions between 1480 and 2170 MeV BAILLON 1975 NP B94 39 Energy Independent Partial Wave Analysis of ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ between 1540 and 2150 MeV KANE 1972 PR D5 1583 Partial Wave Analysis of ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}^{\pm}}{{\mathit \Sigma}^{\mp}}$ between 1.73 and 2.11 Gev