pdgLive Home   >   Baryon Summary Table   >   ${{\mathit \Sigma}^{-}}$   >   $\phi $ ANGLE FOR ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$ (tan$\phi $ = $\beta $ $/$ $\gamma $)

${{\mathit \Sigma}^{-}}$ DECAY PARAMETERS

See the ``Note on Baryon Decay Parameters'' in the neutron Listings. Older, outdated results have been omitted.

$\phi $ ANGLE FOR ${{\mathit \Sigma}^{-}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{-}}$ (tan$\phi $ = $\beta $ $/$ $\gamma $)

INSPIRE   PDGID:

S020F-

VALUE ($^\circ{}$) EVTS DOCUMENT ID TECN  COMMENT $\bf{ 10 \pm15}$ OUR AVERAGE $+5$ $\pm23$ 1092 1 BERLEY 1970 B HBC ${{\mathit n}}$ rescattering $14$ $\pm19$ 1385 BANGERTER 1969 B HBC ${{\mathit K}^{-}}{{\mathit p}}$ 0.4 ${\mathrm {GeV/}}\mathit c$ 1  BERLEY 1970B changed from $-5$ to $+5^\circ{}$ to agree with our sign convention.

References:

BERLEY 1970B PR D1 2015 Decay Parameters in the Nonleptonic Decay Modes of the Charged ${{\mathit \Sigma}}$ Hyperons BANGERTER 1969B PR 187 1821 Decay Parameters for ${{\mathit \Sigma}^{\pm}}$ $\rightarrow$ ${{\mathit n}}{{\mathit \pi}^{\pm}}$

Except where otherwise noted, content of the 2023 Review of Particle Physics is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT (Japan), INFN (Italy), JPS and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2023. See LBNL disclaimers.