# ${{\overline{\boldsymbol p}}}$ ${{\boldsymbol p}}$ $\rightarrow$ ${{\boldsymbol \pi}}{{\boldsymbol \pi}}$ INSPIRE search

VALUE (MeV) DOCUMENT ID TECN  COMMENT
• • • We do not use the following data for averages, fits, limits, etc. • • •
$\sim$$296  1994 RVUE {{\overline{\mathit p}}} {{\mathit p}} \rightarrow {{\mathit \pi}}{{\mathit \pi}} \sim$$40$ 1
 1994
RVUE $0.36 - 1.55$ ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$
$\sim$$250 2  1980 B RVUE \sim$$200$ 2
 1980 C
RVUE
1  See however KLOET 1996 who fit ${{\mathit \pi}^{+}}{{\mathit \pi}^{-}}$ only and find waves only up to $\mathit J = 3$ to be important but not significantly resonant.
2  $\mathit I(\mathit J{}^{P}) = 1(1{}^{-})$ from simultaneous analysis of ${{\mathit p}}$ ${{\overline{\mathit p}}}$ $\rightarrow$ ${{\mathit \pi}^{-}}{{\mathit \pi}^{+}}$ and ${{\mathit \pi}^{0}}{{\mathit \pi}^{0}}$ .
References:
 HASAN 1994
PL B334 215 Amplitudes for ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ from 0.36 to 2.5 ${\mathrm {GeV/}}\mathit c$
 OAKDEN 1994
NP A574 731 Amplitude Analysis of Data on ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ at Low Energy
 MARTIN 1980B
NP B176 355 Structures in ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$
 MARTIN 1980C
NP B169 216 Exploration of the ${{\overline{\mathit p}}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit \pi}}{{\mathit \pi}}$ Channel in the Resonance Region