Collective dipole Bremsstrahlung in fusion reactions

被引：63
作者：
Baran, V
Brink, DM
Colonna, M
Di Toro, M
机构：
[1] Lab Nazl Sud, I-95123 Catania, Italy
[2] Univ Catania, Catania, Italy
[3] NIPNE HH, Bucharest, Romania
[4] Univ Oxford, Oxford, England
来源：
PHYSICAL REVIEW LETTERS | 2001年 / 87卷 / 18期
关键词：
D O I：
10.1103/PhysRevLett.87.182501
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We estimate the dipole radiation emitted in fusion processes. We show that a classical bremsstrahlung approach can account for both the preequilibrium and the thermal photon emission. We give an absolute evaluation of the preequilibrium component due to the charge asymmetry in the entrance channel, and we study the energy and mass dependence in order to optimize the observation. This dynamical dipole radiation could be a relevant cooling mechanism in the fusion path. We stress the interest in experiments with the new available radioactive beams.
引用
收藏
页码：182501 / 1
页数：4
相关论文
共 26 条
  • [1] Preequilibrium γ ray emission in complete and incomplete fusion reactions in the collision 12C+64Ni at 8 MeV/nucleon
    Amorini, F
    Cabibbo, M
    Cardella, G
    Di Pietro, A
    Figuera, P
    Musumarra, A
    Papa, M
    Pappalardo, G
    Rizzo, F
    Tudisco, S
    [J]. PHYSICAL REVIEW C, 1998, 58 (02): : 987 - 995
  • [2] The dynamical dipole mode in dissipative heavy-ion collisions
    Baran, V
    Cabibbo, M
    Colonna, M
    Di Toro, M
    Tsoneva, N
    [J]. NUCLEAR PHYSICS A, 2001, 679 (3-4) : 373 - 392
  • [3] Giant dipole emission as a probe of the entrance channel dynamics
    Baran, V
    Colonna, M
    DiToro, M
    Guarnera, A
    Smerzi, A
    [J]. NUCLEAR PHYSICS A, 1996, 600 (01) : 111 - 130
  • [4] A GUIDE TO MICROSCOPIC MODELS FOR INTERMEDIATE ENERGY HEAVY-ION COLLISIONS
    BERTSCH, GF
    DASGUPTA, S
    [J]. PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1988, 160 (04): : 189 - 233
  • [5] TIME-DEPENDENT HARTREE-FOCK DESCRIPTION OF CHARGE EQUILIBRATION IN HEAVY-ION COLLISIONS
    BONCHE, P
    NGO, N
    [J]. PHYSICS LETTERS B, 1981, 105 (01) : 17 - 21
  • [6] BORTIGNON PF, 1995, NUCL PHYS A, V583, pC101
  • [7] LIMITING TEMPERATURE FOR THE EXISTENCE OF COLLECTIVE MOTION IN HOT NUCLEI
    BORTIGNON, PF
    BRACCO, A
    BRINK, D
    BROGLIA, RA
    [J]. PHYSICAL REVIEW LETTERS, 1991, 67 (24) : 3360 - 3363
  • [8] BRINK D, 1990, NUCL PHYS A, V519, pC3, DOI 10.1016/0375-9474(90)90611-O
  • [9] BRINK DM, 1988, NUCL PHYS A, V482, pC3, DOI 10.1016/0375-9474(88)90571-4
  • [10] Entrance channel effects in fusion-evaporation processes
    Cabibbo, M
    Baran, V
    Colonna, M
    Di Toro, M
    [J]. NUCLEAR PHYSICS A, 1998, 637 (03) : 374 - 392
123