Low-lying dipole excitations of the Ti-48 nucleus: Investigation by the method of resonance fluorescence

被引：0

作者：

Ishkhanov, BS ^{[1
]}

Kapitonov, IM ^{[1
]}

Rodionov, DA ^{[1
]}

Shirokov, EV ^{[1
]}

Yurev, BA ^{[1
]}

Govor, LI ^{[1
]}

Demidov, AM ^{[1
]}

Zhuravlev, OK ^{[1
]}

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV, INST NUCL PHYS, MOSCOW 119899, RUSSIA

来源：

PHYSICS OF ATOMIC NUCLEI | 1996年 / 59卷 / 07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：

A nuclear-resonance-fluorescence experiment with Ti-48 nuclei exposed to bremsstrahlung that has an endpoint energy of 6.6 MeV and which is generated by a continuous-wave electron beam of the injector of a race-track microtron is described. Excitation of five spin-1 levels is observed. The widths of these levels with respect to decay to the ground state and the reduced probabilities of gamma transitions are determined. In the energy region below 6.5 MeV, the total reduced probability of M1 transitions is found to be 1.06 +/- 0.08 mu(N)(2). The M1 transitions in the Ti-48 nucleus are interpreted as a manifestation of the orbital-type magnetic dipole excitations that are peculiar to deformed nuclei. The structure of the M1 spectrum of Ti-48 indicates that this nucleus is an axially asymmetric rotor whose quadrupole-deformation and nonaxiality parameters are delta = 0.26 +/- 0.04 and gamma = 19 degrees +/- 2 degrees, respectively.

引用

页码：1109 / 1116

页数：8

共 50 条

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