Radiative strength functions in 93-98Mo -: art. no. 044307

被引：154

作者：

Guttormsen, M

Chankova, R

Agvaanluvsan, U

Algin, E

Bernstein, LA

Ingebretsen, F

Lönnroth, T

Messelt, S

Mitchell, GE

Rekstad, J

Schiller, A

Siem, S

Sunde, AC

Voinov, A

Odegård, S

机构：

[1] Univ Oslo, Dept Phys, N-0316 Oslo, Norway

[2] Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

[3] N Carolina State Univ, Raleigh, NC 27695 USA

[4] Triangle Univ Nucl Lab, Durham, NC 27708 USA

[5] Osmangazi Univ, Dept Phys, TR-26480 Meselik, Eskisehir, Turkey

[6] Ohio Univ, Dept Phys & Astron, Athens, OH 45701 USA

[7] Joint Inst Nucl Res, Frank Lab Neutron Phys, Dubna 141980, Moscow Region, Russia

来源：

PHYSICAL REVIEW C | 2005年 / 71卷 / 04期

关键词：

D O I：

10.1103/PhysRevC.71.044307

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：

Radiative strength functions (RSFs) in Mo93-98 have been extracted using the (He-3,alpha gamma) and (He-3,He-3'gamma) reactions. The RSFs are U shaped as function of gamma energy with a minimum at around E-gamma=3 MeV. The minimum values increase with neutron number because of the increase in the low-energy tail of the giant electric dipole resonance with nuclear deformation. The unexpected strong increase in strength below E-gamma=3 MeV, here called soft pole, is established for all Mo93-98 isotopes. The soft pole is present at all initial excitation energies in the 5-8-MeV region.

引用

页数：7

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