Preequilibrium cluster emission in massive transfer reactions near the Coulomb barrier energy

Performance of VAMOS for reactions near the Coulomb barrier

VAMOS (VAriable MOde Spectrometer) is a large solid angle ray-tracing spectrometer employing numerical methods for reconstructing the particle trajectory. Complete identification of reaction products has been achieved by trajectory reconstruction. Equipped with a versatile detection system, VAMOS is capable of identifying reaction products from diverse reactions using beams at GANIL. The techni...

1n and 2n transfer with the Borromean nucleus 6He near the Coulomb barrier.

Angular distributions for 1n and 2n transfer are reported for the 6He+65Cu system at E_{lab}=22.6 MeV. For the first time, triple coincidences between alpha particles, neutrons, and characteristic gamma rays from the targetlike residues were used to separate the contributions arising from 1n and 2n transfer. The differential cross sections for these channels, elastic scattering, and fusion were...

1n- and 2n-transfer with the Borromean nucleus He near the Coulomb barrier

Forward peaking of near Coulomb energy protons in (n,p) reactions at 14.1 MeV

We apply a modified statistical model of compound nucleus reactions to analyse low energy proton angular distributions from the 93Nb(n, p), Ag(n, p) and In(n, p) reactions at En=14.1 MeV. The forward peaking at the maximum of the proton evaporation spectrum at Ep = 6–8 MeV is reproduced and interpreted as an indication of the decay of thermalized-nonequilibrated nuclear states.

Dynamic Study on Fusion Reactions for Zr around Coulomb Barrier *

By using the updated improved Quantum Molecular Dynamics model in which a surface-symmetry potential term has been introduced for the first time, the excitation functions for fusion reactions of 40,48Ca+90,96Zr at energies around the Coulomb barrier have been studied. The experimental data of the fusion cross sections for 40Ca+90,96Zr have been reproduced remarkably well without introducing any...