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Experimental data from the reaction of an 8.0 GeV/c pi- beam incident on a 197Au target have been analyzed in order to investigate the integrated breakup time scale for hot residues. Alpha-particle energy spectra and particle angular distributions supported by a momentum tensor analysis suggest that at large excitation energy, above 3-5 MeV/nucleon, light-charged particles are emitted prior to or at the same time as the emission of the heavy fragments. Comparison with the SMM and GEMINI models is presented. A binary fission-like mechanism fits the experimental data at low excitation energies, but seems unable to reproduce the data at excitation energies above 3-5 MeV/nucleon.
Fragment kinetic energy spectra for reactions induced by 8.0 GeV/c $rm{pi^-}$ beams incident on a $rm{^{197}}$Au target have been analyzed in order to deduce the possible existence and influence of thermal expansion. The average fragment kinetic ener
We have measured an inclusive missing-mass spectrum of the $d(pi^+, K^+)$ reaction at the pion incident momentum of 1.69 GeV/$c$ at the laboratory scattering angles between 2$^circ$ and 16$^circ$ with the missing-mass resolution of 2.7 $pm$ 0.1 MeV/$
Data from the experiment on the 197Au + 197Au reaction at 23 AMeV are analyzed with an aim to find signatures of exotic nuclear configurations such as toroid-shaped objects. The experimental data are compared with predictions of the ETNA code dedicat
We have carried out an experiment to search for a neutron-rich hypernucleus, $^6_{Lambda}$H, by the $^6$Li($pi^-,K^+$) reaction at $p_{pi^-}$ =1.2 GeV/$c$. The obtained missing mass spectrum with an estimated energy resolution of 3.2 MeV (FWHM) showe
We have observed a $K^-pp$-like structure in the $d(pi^+,K^+)$ reaction at 1.69 GeV/$c$. In this reaction $Lambda(1405)$ hyperon resonance is expected to be produced as a doorway to form the $K^-pp$ through the $Lambda^*prightarrow K^-pp$ process. Ho