The third particle in deep inelastic collisions

Fission and emission of H and He in the reactions of 215 MeV16O with181Ta,208Pb and238U

“…Typically in the forward hemisphere (forward here means in the direction of the lighter collision partner), the energy spectra show a broad, high-energy component , and in the backward hemisphere there is a more narrow, nearly isotropic lower-energy component [2,4,5,8,17,19,20,38,[55][56][57][58][59][60][61][62][63][64][65][66]. The forward-peaked component has been shown to include some sequential evaporation from the target and/or projectile-like fragments [7,16,24,30,33,37,44,52,54,[67][68][69][70][71][72][73][74][75][76][77][78][79] and also some direct (or prethermalization) emission that occurs during the initial impact [13, 15, 19, 25, 26, 29, 33-35, 37, 38, 40, 45, 52, 54, 74, 77, 80-94]. The spectra in the backward hemisphere include some evaporation from fission-like fragments [-95, 96], but often contain a significant amount of emission from the composite system prio...…”

Competition between inertial and PEP emission in incomplete fusion reactions

“…On this formula one can note several points: -the number of particules is proportional to the mass of nucleus 1 in disagreement with experiment [10,20,21]. -N is independant of the entrance angular momentum.…”

Preequilibrium Emission in the Fusion Reactions in the SystemN14+AlBillerey1, Cerruti2, Chevarier3 et al. 1981Phys. Rev. Lett.Self Cite11010View full textAdd to dashboardCite

“…Comparing the energy spectra and angular distributions with the model predictions, we extract a preequilibrium cross section of 150 ±40 mb for He and an upper limit of 40 mb for H. As we have reported recently, the a emission in the deep-inelastic collisions in this system includes a similar nonequilibrium component whose origin has not been determined. 4 The origin of the fast particles measured in coincidence with the evaporation residues, however, can be interpreted in the well-known framework of preequilibrium emission as discussed below.…”

“…In fact, fragment-fragment coincidence results show that contributions from deep-inelastic processes (DIP) to the lightest products explain the data adequately. 4 For Mg nuclei detected at angles backward of 15° in the laboratory this contribution has been estimated to be 30%.…”