PREEQUILIBRIUM AND TEMPERATURE EFFECTS ON THE DISAPPEARING OF GIANT-DIPOLE RESONANCES IN HIGHLY EXCITED NUCLEI

被引：0
|
作者：
BONASERA, A
DITORO, M
SMERZI, A
BRINK, DM
机构：
[1] UNIV CATANIA, DIPARTIMENTO FIS, I-95124 CATANIA, ITALY
[2] UNIV TRENT, DIPARTIMENTO FIS, I-38050 TRENT, ITALY
[3] UNIV OXFORD, DEPT THEORET PHYS, OXFORD, ENGLAND
来源：
NUCLEAR PHYSICS A | 1994年 / 569卷 / 1-2期
关键词：
D O I：
暂无
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：
We show that an increase of the GDR spreading width with excitation energy is expected on the basis of an interplay between one-body and collisional damping. In the Sn region the width reaches the value of the resonance energy at E(x) almost-equal-to 230 MeV and the probability of giant photon emission becomes very small. Pre-equilibrium effects could however play an important role and new experiments with charge asymmetric entrance channels are suggested.
引用
收藏
页码：C215 / C224
页数：10
相关论文
共 50 条
  • [1] PREEQUILIBRIUM EFFECTS ON PROPERTIES OF HOT GIANT-DIPOLE RESONANCES
    CHOMAZ, P
    DITORO, M
    SMERZI, A
    NUCLEAR PHYSICS A, 1993, 563 (03) : 509 - 524
  • [2] THE GIANT-DIPOLE RESONANCE IN HIGHLY EXCITED NUCLEI
    GOSSETT, CA
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1988, 196 : 3 - NUCL
  • [3] GIANT-DIPOLE RESONANCE IN HIGHLY EXCITED HEAVY-NUCLEI
    CHAKRABARTY, DR
    NUCLEAR PHYSICS A, 1988, 482 (1-2) : C81 - C92
  • [4] SYSTEMATIC BEHAVIOR OF THE GIANT-DIPOLE RESONANCE IN HIGHLY EXCITED NUCLEI
    GOSSETT, CA
    BEHR, JA
    FELDMAN, G
    GUNDLACH, JH
    KICINSKAHABIOR, M
    SNOVER, KA
    JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 1988, 14 : S267 - S274
  • [5] GIANT-DIPOLE RESONANCES IN HOT ROTATING NUCLEI
    SCHWALM, D
    PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, 1992, 28 : 1 - 10
  • [6] Preequilibrium particle emission and the giant-dipole resonance in Sn nuclei
    Kelly, MP
    Liang, JF
    Sonzogni, AA
    Snover, KA
    van Schagen, JPS
    Lestone, JP
    PHYSICAL REVIEW C, 1997, 56 (06): : 3201 - 3209
  • [7] SYSTEMATICS OF THE DOUBLE GIANT-DIPOLE RESONANCES IN NUCLEI
    BARTOUV, J
    MORDECHAI, S
    PHYSICAL REVIEW C, 1992, 45 (01): : 197 - 204
  • [8] GIANT-DIPOLE RESONANCES IN EXCITED ER ISOTOPES
    CHAKRABARTY, DR
    THOENNESSEN, M
    SEN, S
    PAUL, P
    BUTSCH, R
    HERMAN, MG
    PHYSICAL REVIEW C, 1988, 37 (04): : 1437 - 1441
  • [9] GIANT-DIPOLE RESONANCES IN VERY HOT NUCLEI
    KASAGI, J
    YOSHIDA, K
    NUCLEAR PHYSICS A, 1994, 569 (1-2) : C195 - C202
  • [10] EFFECTS OF THERMAL FLUCTUATIONS ON GIANT-DIPOLE RESONANCES IN HOT ROTATING NUCLEI
    ALHASSID, Y
    BUSH, B
    NUCLEAR PHYSICS A, 1990, 509 (03) : 461 - 498
12345