COMBINED MODEL FOR DECAY OF THE GIANT-DIPOLE RESONANCE

被引:11
作者
ISHKHANOV, BS
KAPITONOV, IM
ORLIN, VN
SHVEDUNOV, VI
VARLAMOV, VV
机构
[1] Institute of Nuclear Physics, Moscow State University, Moscow
关键词
D O I
10.1016/0375-9474(79)90657-2
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
A simple model for decay of the giant dipole resonance is described that takes into account the semidirect, pre-equilibrium, and equilibrium mechanisms of the photonucleon emission. The semidirect photoeffect is treated within the framework of the R-matrix theory in the shell model. The wave function for the doorway dipole state is constructed using the generator procedure that offers the possibility to obtain simple formulas for a calculation of the semidirect component of the photonucleon spectra. The problem of the inclusion of isospin effects is treated. A reasonable agreement between theoretical and experimental photoproton spectra has been obtained. © 1979.
引用
收藏
页码:413 / 440
页数:28
相关论文
共 35 条
[21]   ISOSPIN CONSERVATION AND PRE-EQUILIBRIUM DECAY IN (P,P') REACTIONS ON NEUTRON RICH TIN ISOTOPES [J].
KALBACHCLINE, C ;
HUIZENGA, JR ;
VONACH, HK .
NUCLEAR PHYSICS A, 1974, 222 (02) :405-428
[22]   REDUCED WIDTHS OF INDIVIDUAL NUCLEAR ENERGY LEVELS [J].
LANE, AM .
REVIEWS OF MODERN PHYSICS, 1960, 32 (03) :519-566
[23]   EFFECTS OF ISOSPIN ON STATISTICAL NUCLEAR DECAY [J].
LU, CC ;
HUIZENGA, JR ;
STEPHAN, CJ ;
GORSKI, AJ .
NUCLEAR PHYSICS A, 1971, A164 (02) :225-&
[24]   ISOSPIN MIXING IN IN-111 AND INCLUSION OF ADDITIONAL TERMS IN MIXING FORMALISM [J].
LUX, CR ;
PORILE, NT ;
GRIMES, SM .
PHYSICAL REVIEW C, 1977, 15 (04) :1308-1317
[25]   PROTON SEPARATION ENERGIES DERIVED FROM (D,3HE) REACTION ON F-P SHELL NUCLEI AT 52-MEV [J].
MAIRLE, G ;
KASCHL, GT ;
LINK, H ;
MACKH, H ;
SCHMIDTR.U ;
WAGNER, GJ ;
TUREK, P .
NUCLEAR PHYSICS A, 1969, A134 (01) :180-&
[26]   PRE-EQUILIBRIUM DECAY AND EXCITON MODEL [J].
RIBANSKY, I ;
OBLOZINSKY, P ;
BETAK, E .
NUCLEAR PHYSICS A, 1973, A205 (03) :545-560
[27]  
RIBANSKY I, 1974, NUCL PHYS A, V226, P347
[28]   PHOTO-EFFECTS IN MIDDLE-WEIGHT NUCLEI [J].
SCHIFF, LI .
PHYSICAL REVIEW, 1948, 73 (11) :1311-1313
[29]   ANALYSIS OF E1 AND E2 RADIATIVE ALPHA-CAPTURE AND GIANT MULTIPOLE RESONANCES [J].
SHIKAZONO, N ;
TERASAWA, T .
NUCLEAR PHYSICS A, 1975, 250 (02) :260-284
[30]   GIANT DIPOLE STATES OF NI-58 AND NI-60 [J].
TANAKA, Y .
PROGRESS OF THEORETICAL PHYSICS, 1971, 46 (03) :787-&