Distinctive features of Coulomb-related emissions in peripheral heavy ion collisions at Fermi energies

Journal Article · Sat Dec 15 00:00:00 EST 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.061601· OSTI ID:21067953

Piantelli, S; Olmi, A; Casini, G ^[1]; Maurenzig, P R; Bardelli, L; Bini, M; Mangiarotti, A; Pasquali, G; Poggi, G; Stefanini, A A ^[2]

---

1. Sezione INFN di Firenze, Via G. Sansone 1, I-50019 Sesto Fiorentino (Italy)
2. Sezione INFN and Universita di Firenze, Via G. Sansone 1, I-50019 Sesto Fiorentino (Italy)

Light charged particles emitted at about 90 deg. in the frame of the projectile-like fragment in semiperipheral collisions of {sup 93}Nb+{sup 93}Nb at 38A MeV give evidence for the occurrence, in the same class of events, of two different production mechanisms. This is demonstrated by differences in the kinetic energy spectra and in the isotopic composition of the particles. The emission with a softer kinetic energy spectrum and a low N/Z ratio for the hydrogen isotopes is attributed to an evaporation process. The harder emission, with a much higher N/Z ratio, can be attributed to a midvelocity process consisting of a nonisotropic emission, on a short time-scale, from the projectile-like fragment.

• OSTI ID: 21067953
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 76, Issue 6; Other Information: DOI: 10.1103/PhysRevC.76.061601; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHARGED PARTICLES
ENERGY SPECTRA
HYDROGEN ISOTOPES
ION EMISSION
ISOTOPE RATIO
KINETIC ENERGY
MEV RANGE
NIOBIUM 93 REACTIONS
NIOBIUM 93 TARGET
NUCLEAR FRAGMENTATION
NUCLEAR FRAGMENTS