General properties of the pion production reaction in nuclear matter

Abstract

The pion production reaction ${\pi }^{+}\to {\pi }^{+}{\pi }^{\pm }$ on ${}^{45}Sc$ was studied at incident pion energies of $T_{{\pi }^{+}}$ = 240, 260, 280, 300, and 320 MeV. The experiment was performed using the $M11$ pion-channel at TRIUMF, and multiparticle events, (${\pi }^{+},{\pi }^{+}{\pi }^{\pm }$) and (${\pi }^{+},{\pi }^{+}{\pi }^{\pm }p$), were detected with the CHAOS spectrometer. Results are reported in the form of both differential and total cross sections, and are compared to theoretical predictions and the reaction phase space. The present investigation of the T-dependence of the ${\pi }^{+}A\to {\pi }^{+}{\pi }^{\pm }{A}^{\prime }$ reaction complements earlier examinations of the A-dependence of the reaction, which was measured using ${}^{2}H$, ${}^{4}He$, ${}^{12}C$, ${}^{16}O$, ${}^{40}Ca$, and ${}^{208}Pb$ targets at $\sim$280 MeV. Some general properties of the pion-induced pion production reaction in nuclear matter will be presented, based on the combined results of the two studies.

arXiv comment23 pages, Latex, accepted for publication in Nucl. Phys. A

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Cited by in corpus (14)

• Hadron properties in the nuclear medium
• In-medium Pion and Partial Restoration of Chiral Symmetry
• Photoproduction of mesons off nuclei
• Photoproduction of pi0pi0 and pi0pi+-pairs off the proton from threshold to the second resonance region
• Double pion photoproduction off 40Ca
• Pion properties at finite nuclear density based on in-medium chiral perturbation theory
• The pi -> pi pi process in nuclei and the restoration of chiral symmetry
• In-medium properties of the light and heavy-light mesons in a light-front quark model
• Pions valence quark distributions in asymmetric nuclear matter at finite temperature
• Double pion photoproduction off nuclei - are there effects beyond final-state interaction?
• In-Medium Properties of Hadrons
• Variation of hadron masses in nuclear matter in the relativistic Hartree approximation
• Impact of isospin asymmetric nuclear medium on pseudoscalar and vector $B$ mesons
• Hadrons in Nuclei: Experiments and Perspectives