Pionic Fusion of Heavy Ions

A. C. Hayes; A. Galindo-Uribarri; C. St-Pierre (Universite Laval); D. Fox; D. Horn; D. R. Bowman; G. C. Ball; G. Savard (Chalk River Laboratories) L. Beaulieu; W. G. Davies; Y. Larochelle

arxiv: nucl-ex/9608004 · v1 · submitted 1996-08-13 · ⚛️ nucl-ex

Pionic Fusion of Heavy Ions

D. Horn , G. C. Ball , D. R. Bowman , W. G. Davies , D. Fox , A. Galindo-Uribarri , A. C. Hayes , G. Savard (Chalk River Laboratories) L. Beaulieu

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Y. Larochelle C. St-Pierre (Universite Laval)

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keywords energyfusioncrossheavyionspionicproductionabove

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We report the first experimental observation of the pionic fusion of two heavy ions. The 12C(12C,24Mg)pi0 and 12C(12C,24Na)pi+ cross sections have been measured to be 208 +/- 38 and 182 +/- 84 picobarns, respectively, at E_cm = 137 MeV. This cross section for heavy-ion pion production, at an energy just 6 MeV above the absolute energy-conservation limit, constrains possible production mechanisms to incorporate the kinetic energy of the entire projectile-target system as well as the binding energy gained in fusion.

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Pionic Fusion of Heavy Ions

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