Peripherality of breakup reactions
نویسنده
چکیده
Breakup calculations of loosely bound nuclei (B and Be) are performed with two different descriptions of the projectile. The descriptions differ strongly in the interior of the wave function, but exhibit identical asymptotic properties (ANC, and phase shifts). Calculations are performed for both nuclei at intermediate (40–70 MeV/nucleon) and low (26 MeV) energies with heavy and light targets. No dependence on the projectile description is observed. This result confirms that breakup reactions probe only the external part of the wave function. The extraction of spectroscopic factors from these measurements is therefore meaningless.
منابع مشابه
Clinical peripherality: development of a peripherality index for rural health services
BACKGROUND The configuration of rural health services is influenced by geography. Rural health practitioners provide a broader range of services to smaller populations scattered over wider areas or more difficult terrain than their urban counterparts. This has implications for training and quality assurance of outcomes. This exploratory study describes the development of a "clinical peripherali...
متن کاملLattice Boltzmann Simulation of Deformation and Breakup of a Droplet under Gravity Force Using Interparticle Potential Model
Abstract In this paper interparticle potential model of the lattice Boltzmann method (LBM) is used to simulate deformation and breakup of a falling droplet under gravity force. First this model is applied to ensure that the surface tension effect is properly implemented in this model. Two tests have been considered. First, it has been checked an initial square drop in a 2D domain can freely def...
متن کاملMechanisms for Direct Breakup Reactions
We review some simple mechanisms of breakup in nuclear reactions. We mention the spectator breakup, which is described in the post-form DWBA. The relation to other formulations is also indicated. An especially important mechanism is Coulomb dissociation. It is a distinct advantage that the perturbation due to the electric field of the nucleus is exactly known. Therefore firm conclusions can be ...
متن کاملDescription of Four-Body Breakup Reaction with the Method of Continuum-Discretized Coupled-Channels
We present a method of smoothing discrete breakup S-matrix elements calculated by the method of continuum-discretized coupled-channels (CDCC). This smoothing method makes it possible to apply CDCC to four-body breakup reactions. The reliability of the smoothing method is confirmed for two cases, Ni(d, pn) at 80 MeV and the E1 transition of He. We apply CDCC with the smoothing method to a He bre...
متن کاملSimulation and Analysis of Breakup Reactions with the Program CDXS+
Electromagnetic breakup reactions of stable and exotic nuclei at medium to high projectile energies provide a wealth of information for nuclear structure and astrophysics. E.g., it is possible to study ground-state spectroscopic factors, nucleon-core interactions [1] or to extract low-energy radiative capture cross sections [2]. In order to prepare the actual experiments and to analyze the obta...
متن کامل