Multifragmentation in α(5GeV/u) + Au Reactions

نویسنده

  • Tomoyuki Maruyama
چکیده

We simulate the fragmentation processes in the α + Au collisions at the bombarding energy 5 GeV/u using the simplified RQMD approach. The statistical decay calculation is connected to obtain the final state. From the simulation we find that the residual nucleus created by this collision has a annular eclipse shape, and then expands more strongly to the transverse direction than to the beam-direction. Then the angular-distribution of the intermediate mass fragments has a sideward peak; this result explains the experimental result. Talk in the 2nd Joint RIKEN(Japan)/INFN(Italy) Simposium

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Multifragmentation through Exotic Shape Nuclei in α(5GeV/u) + Au Reactions

We simulate the fragmentation processes in the α + Au collisions at a bombarding energy of 5 GeV/u using the simplified RQMD approach plus the statistical decay model. We find from the simulation that the angulardistribution of the intermediate mass fragments has a sideward peak, more strongly in the transverse direction than in the beam-direction, when the intermediate nucleus formed by the dy...

متن کامل

Isotopic Composition of Fragments in Nuclear Multifragmentation

The isotope yields of fragments, produced in the decay of the quasiprojectile in Au+Au peripheral collisions at 35 MeV/nucleon and those coming from the disassembly of the unique source formed in Xe+Cu central reactions at 30 MeV/nucleon, were measured. We show that the relative yields of neutron-rich isotopes increase with the excitation energy in multifragmentation reaction. In the framework ...

متن کامل

Systematics of fragment observables

Multifragmentation is observed in many reaction types: light ion induced reactions at large incident energies (in the GeV region), central heavy ion collisions from 30 to 100 MeV/u, and peripheral heavy ion collisions between 30 and 1000 MeV/u or above. When nucleus-nucleus collisions are considered, another entrance channel parameter is the corresponding mass asymmetry. The first question whic...

متن کامل

4 p studies of the 1 . 8 – 4 . 8 GeV 3 He 1 natAg , 197 Au reactions . II .

Multifragmentation of Ag and Au nuclei induced by 1.8–4.8 GeV He ions has been studied with the Indiana Silicon Sphere 4p detector array. Rapidity, moving source, and sphericity-coplanarity analyses are consistent with near-simultaneous emission from a source in approximate kinetic equilibrium. For the most dissipative collisions, the spectral peaks are broadened and shifted to very low energie...

متن کامل

Cross section measurements for γ-process studies using a LEPS detector

In this paper we present the ongoing experiments at ATOMKI related to our systematic γ-process studies. These studies are intended to enlarge the limited experimental database from α-induced reactions on nuclei in the heavier mass range of the γ-process. In all presented cases the activation method was used. The details of the cross section measurements and preliminary results on In(α,n)Sb, In(...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1995