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

INSPIRE   PDGID:

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.

References:

MARTIN 1977 NP B127 349 ${{\overline{\mathit K}}}{{\mathit N}}$ Interactions in the Resonance Region. 3. Resonance Spectra Also NP B126 266 ${{\overline{\mathit K}}}{{\mathit N}}$ Interactions in the Resonance Region. 1. Analysis of Data Also NP B126 285 ${{\overline{\mathit K}}}{{\mathit n}}$ Interactions in the Resonance Region. 2. Amplitudes 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 LANGBEIN 1972 NP B47 477 An Energy Independent Coupled Channel Phase Shift Analysis for the ${{\overline{\mathit K}}}{{\mathit N}}$ System