GAMOW-TELLER STRENGTH OBSERVED IN THE TI-48(N,P)SC-48 REACTION - IMPLICATIONS FOR THE DOUBLE BETA-DECAY OF CA-48

被引：83
作者：
ALFORD, WP
HELMER, RL
ABEGG, R
CELLER, A
FREKERS, D
GREEN, P
HAUSSER, O
HENDERSON, R
HICKS, K
JACKSON, KP
JEPPESEN, R
MILLER, CA
TRUDEL, A
VETTERLI, M
YEN, S
POURANG, R
WATSON, J
BROWN, BA
ENGEL, J
机构：
[1] TRIUMF,VANCOUVER V6T 2A3,BC,CANADA
[2] KENT STATE UNIV,KENT,OH 44242
[3] MICHIGAN STATE UNIV,NATL SUPERCOND CYCLOTRON LAB,E LANSING,MI 48824
[4] MICHIGAN STATE UNIV,DEPT PHYS & ASTRON,E LANSING,MI 48824
[5] CALTECH,PASADENA,CA 91125
来源：
NUCLEAR PHYSICS A | 1990年 / 514卷 / 01期
关键词：
D O I：
10.1016/0375-9474(90)90331-F
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：
Cross sections for the 48Ti(n, p) reaction have been measured at angles of 0°, 6°, and 12° at an energy of 200 MeV. The measurements are compared with results of DWIA calculations to obtain estimates of transition strengths for L = 0, 1, and ≥2 up to an excitation energy of 25 MeV. Gamow-Teller strength (L = 0) is peaked between 3 and 4 MeV excitation energy, with a significant distribution extending to about 12 MeV. The L = 1 strength is found mainly between 6 and 20 MeV while the cross section for transitions with L ≥2 increases from 10 MeV to the upper limit of the measurements. The distribution of Gamow-Teller strength is in poor agreement with theoretical distributions used to calculate the lifetime for double beta decay of 48Ca. © 1990.
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页码：49 / 65
页数：17
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