Details

Autor(en) / Beteiligte

• Peng, J.C.
• Leitch, M.J.
• Bowman, J.D.
• Irom, F.
• Kapustinsky, J.
• Li, T.K.
• Liu, L.C.
• Mishra, C.S.
• Simmons, J.E.
• Wong, Z.F.
• Smith, C.
• Whitney, R.R.

Titel

Coherent. eta. -meson production in the reaction. pi. sup minus + sup 3 He r arrow. eta. + t

Ist Teil von

• Physical review letters, 1989-11, Vol.63:21

Ort / Verlag

United States

Erscheinungsjahr

1989

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The reaction {pi}{sup {minus}}+{sup 3}He{r arrow}{eta}+{ital t} has been observed by detecting {eta}{r arrow}2{gamma} decays. The observed forward-angle cross sections vary from {similar to}100 {mu}b/sr at 680 MeV/{ital c} to {similar to}2 {mu}b/sr at 590 MeV/{ital c}. Distorted-wave impulse-approximation calculations reproduce the shape but underestimate the magnitude of the observed cross section. These cross sections are approximately 100 times larger than those for the reaction {ital p}+{ital d}{r arrow}{eta}+{sup 3}He measured at similar {eta} center-of-mass energies.