Asymmetric Fission in the 78Kr+40Ca reactions at 5.5 MeV/nucleon
- Roy R.
- Pierroutsakou D.
- Romoli M.
- D’Onofrio A.
- Parlog M.
- Neindre N. Le
- Lautesse P.
- Kravchuk V.L.
- Sanctis J. De
- De Angelis G.
- Bougault R.
- Dayras R.
- Barlini S.
- Borderie B.
- Beck C.
- Spadaccini G.
- Rosato E.
- Vigilante M.
- Commara M. La
- del Campo J. Gomez
- Chbihi A.
- Frankland J.D.
- Bonnet E.
- Schmitt C.
- Mazurek K.
- Wieleczko J.P.
- Ademard G.
DOIAbstract
The cross section, kinetic energy distribution and angular distribution of fragments with atomic number 3 ≤ Z ≤ 28 emitted in the reaction 78Kr + 40Ca at the bombarding energy of 5.5 MeV/nucleon and coincidence between light charged particles and fragments were measured by means of the 4π-INDRA array to study the decay mechanism of medium mass excited nucleus. Global features indicate a high degree of relaxation and are compatible with a binary fission from compound nucleus. The mean value of the kinetic energy distributions of fragments indicates dominance of Coulomb interaction, while the width of the distribution signals large fluctuations. Inclusive cross-section distributions of fragments with charge 3 ≤ Z ≤ 28 are bell-shaped and a st...
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