#### ${{\mathit \Sigma}{(2080)}}$ MASS

VALUE (MeV) DOCUMENT ID TECN  COMMENT
 $\bf{ 2060\text{ to }2120\text{ }(\approx2090) }$ OUR ESTIMATE
$2091$ $\pm7$ 1
 1976
DPWA ${{\mathit K}^{-}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{-}}$
$2070\text{ to }2120$
 1976
IPWA ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$
$2120$ $\pm40$
 1975
IPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ (sol. 1)
$2140$ $\pm40$
 1975
IPWA ${{\overline{\mathit K}}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ (sol. 2)
$2082$ $\pm4$
 1970
DPWA See CORDEN 1976
$2070$ $\pm30$
 1970
DPWA ${{\mathit K}^{-}}$ ${{\mathit N}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$
 1 Preferred solution 3; see CORDEN 1976 for other possibilities, including a ${\mathit D}_{\mathrm 15}$ at this mass.
References:
 CORDEN 1976
NP B104 382 Measurements of the Reactions ${{\mathit K}^{-}}$ ${{\mathit n}}$ ${{\mathit \pi}^{-}}$ ${{\mathit \Lambda}}$ in the $\mathit E_{{\mathrm {cm}}}$ Range 2050 to 2175 MeV and Partial Wave Analysis of this Reaction between 1875 and 2175 MeV
 DEBELLEFON 1976
NP B109 129 Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ : Zeroes and Partial Waves from 0.4 to 2.5 ${\mathrm {GeV/}}\mathit c$
 Also
NP B90 1 New Data on the Reaction ${{\mathit K}^{-}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{0}}$ from 1.934 to 2.516 ${\mathrm {GeV/}}\mathit c$ and Partial Wave Analysis for this Reaction, between 2070 and 2436 MeV $\mathit E_{{\mathrm {cm}}}$
 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
 COX 1970
NP B19 61 A Partial Wave Analysis of the Reaction ${{\mathit K}^{-}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}^{-}}$ in the $\mathit E_{{\mathrm {cm}}}$ Region from 1900 to 2100 MeV
 LITCHFIELD 1970
NP B22 269 Partial Wave Analysis of ${{\mathit K}^{-}}$ ${{\mathit n}}$ $\rightarrow$ ${{\mathit \Lambda}}{{\mathit \pi}}$ between 1.0 and 1.85 ${\mathrm {GeV/}}\mathit c$