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.

引用

页码：49 / 65

页数：17

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