Delta degrees of freedom in antisymmetrized molecular dynamics and (p,p') reactions in the delta region
| dc.creator | Engel, Andreas | |
| dc.creator | Tanaka, Eiji I. | |
| dc.creator | Maruyama, Tomoyuki | |
| dc.creator | Ono, Akira | |
| dc.creator | Horiuchi, Hisashi | |
| dc.date | 1995-05-18 | |
| dc.date.accessioned | 2026-07-07T11:15:21Z | |
| dc.date.available | 2026-07-07T11:15:21Z | |
| dc.description | Delta degrees of freedom are introduced into antisymmetrized molecular dynamics (AMD). This is done by increasing the number of basic states in the AMD wave function, introducing a Skyrme-type delta-nucleon potential, and including $NN\leftrightarrow NΔ$ reactions in the collision description. As a test of the delta dynamics, the extended AMD is applied to (p,p$'$) recations at $E_{\rm lab}=800$ MeV for a $^{12}$C target. It is found that the ratio and the absolute values for delta peak and quasielastic peak (QEP) in the $^{12}$C(p,p$'$) reaction are reproduced for angles $Θ_{\rm lab} \agt 40^\circ$, pointing to a correct treatment of the delta dynamics in the extended AMD. For forward angles the QEP is overestimated. The results of the AMD calculations are compared to one-step Monte Carlo (OSMC) calculations and a detailed analysis of multi-step and delta potential effects is given. As important side results we present a way to apply a Gallilei invariant theory for (N,N$'$) reactions up to $E_{\rm lab} \approx 800$ MeV which ensures approximate Lorentz invariance and we discuss how to fix the width parameter $ν$ of the single particle momentum distribution for outgoing nucleons in the AMD calculation. | |
| dc.description | 28 pages, revtex, 12 figures included, figures are also available upon request as postscript files from the authors (e-mail: engel@ruby.scphys.kyoto-u.ac.jp), submitted to Phys. Rev. C | |
| dc.identifier | https://arxiv.org/abs/nucl-th/9505027 | |
| dc.identifier | http://arxiv.org/abs/nucl-th/9505027 | |
| dc.identifier | Phys.Rev.C52:3231-3248,1995 | |
| dc.identifier | doi:10.1103/PhysRevC.52.3231 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/192360 | |
| dc.subject | Nuclear Theory | |
| dc.title | Delta degrees of freedom in antisymmetrized molecular dynamics and (p,p') reactions in the delta region | |
| dc.type | text |