# ${{\boldsymbol \Sigma}{(1660)}}$ MASS INSPIRE search

VALUE (MeV) DOCUMENT ID TECN  COMMENT
$\bf{ 1630\text{ to }1690\text{ }(\approx1660) }$ OUR ESTIMATE
$1633$ $\pm3$
 2012
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$
$1665.1$ $\pm11.2$ 1
 1985
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
$1670$ $\pm10$
 1980
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$1679$ $\pm10$
 1978
DPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\overline{\mathit K}}}{{\mathit N}}$
$1676$ $\pm15$
 1977
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$1668$ $\pm25$
 1975
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$
$1670$ $\pm20$
 1974
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}}{{\mathit \pi}}$
• • • We do not use the following data for averages, fits, limits, etc. • • •
$1565$ or $1597$ 2
 1977
DPWA ${{\overline{\mathit K}}}{{\mathit N}}$ multichannel
$1660$ $\pm30$ 3
 1975
IPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$
$1671$ $\pm2$ 4
 1975
DPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$
1  The evidence of KOISO 1985 is weak.
2  The two MARTIN 1977 values are from a T-matrix pole and from a Breit-Wigner fit.
3  From solution 1 of BAILLON 1975 ; not present in solution 2.
4  From solution 2 of PONTE 1975 ; not present in solution 1.
References:
 GAO 2012
PR C86 025201 ${{\mathit \Sigma}}$ Resonances from ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \Lambda}}$ Reactions with Center-of-Mass Energies from 1550 to 1676 MeV
 KOISO 1985
NP A433 619 Search for the ${\mathit P}_{\mathrm 11}{{\mathit \Sigma}{(1660)}}$ Resonance in the Reactions ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Sigma}^{\pm}}{{\mathit \pi}^{\mp}}$ in the Momentum Range 597 to 888 ${\mathrm {MeV}}/\mathit c$
 GOPAL 1980
Toronto Conf. 159 S = -1 Baryons: an Experimental Review
 ALSTON-GARNJOST 1978
PR D18 182 Partial Wave Analysis of the ${{\overline{\mathit K}}}{{\mathit N}}$ System from 360 to 1320 ${\mathrm {MeV}}/\mathit c$
 GOPAL 1977
NP B119 362 Partial Wave Analyses of ${{\overline{\mathit K}}}{{\mathit N}}$ Two Body Reactions between 1480 and 2170 MeV
 MARTIN 1977
NP B127 349 ${{\overline{\mathit K}}}{{\mathit N}}$ Interactions in the Resonance Region. 3. Resonance Spectra
 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
 PONTE 1975
PR D12 2597 Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ from 1647 to 1715 MeV
 VANHORN 1975
NP B87 145 Energy Dependent Partial Wave Analysis of ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ between 1540 and 2215 MeV
 KANE 1974
LBL-2452 LBL-2452