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

共 36 条

[1] (T,HE-3) REACTIONS ON CA-40,CA-42,CA-44, TI-46,TI-48,TI-50,CR-54, AND FE-54 [J].

AJZENBERGSELOVE, F ;

BROWN, RE ;

FLYNN, ER ;

SUNIER, JW .

PHYSICAL REVIEW C, 1985, 32 (03) :756-780

[2] SEARCH FOR THE BETA-DECAY OF CA-48 [J].

ALBURGER, DE ;

CUMMING, JB .

PHYSICAL REVIEW C, 1985, 32 (04) :1358-1361

[3] PARTICLE-HOLE STRENGTH EXCITED IN THE CA-48(P,N)SC-48 REACTION AT 134 AND 160 MEV - GAMOW-TELLER STRENGTH [J].

ANDERSON, BD ;

CHITTRAKARN, T ;

BALDWIN, AR ;

LEBO, C ;

MADEY, R ;

TANDY, PC ;

WATSON, JW ;

BROWN, BA ;

FOSTER, CC .

PHYSICAL REVIEW C, 1985, 31 (04) :1161-1172

[4] SEARCH FOR DOUBLE BETA DECAY OF CA-48 AND LEPTON CONSERVATION [J].

BARDIN, RK ;

GOLLON, PJ ;

ULLMAN, JD ;

WU, CS .

NUCLEAR PHYSICS A, 1970, A158 (02) :337-&

[5]

Brown B.A., 1985, NUCLEAR SHELL MODELS, P42

[6] CORRECTIONS TO THE FREE-NUCLEON VALUES OF THE SINGLE-PARTICLE MATRIX-ELEMENTS OF THE M1 AND GAMOW-TELLER OPERATORS, FROM A COMPARISON OF SHELL-MODEL PREDICTIONS WITH SD-SHELL DATA [J].

BROWN, BA ;

WILDENTHAL, BH .

PHYSICAL REVIEW C, 1983, 28 (06) :2397-2413

[7] HALF-LIFE LIMITS ON THE ZERO-NEUTRINO AND 2-NEUTRINO DOUBLE-BETA DECAY OF GE-76 [J].

CALDWELL, DO ;

EISBERG, RM ;

GRUMM, DM ;

HALE, DL ;

WITHERELL, MS ;

GOULDING, FS ;

LANDIS, DA ;

MADDEN, NW ;

MALONE, DF ;

PEHL, RH ;

SMITH, AR .

PHYSICAL REVIEW D, 1986, 33 (09) :2737-2739

[8] SUPPRESSION OF THE 2-NEUTRINO DOUBLE BETA-DECAY [J].

CIVITARESE, O ;

FAESSLER, A ;

TOMODA, T .

PHYSICS LETTERS B, 1987, 194 (01) :11-14

[9]

COMFORT JR, 1984, COMPUTER CODE DW81

[10] LIMIT ON NEUTRINOLESS DOUBLE-BETA-DECAY WITH MAJORON EMISSION IN SE-82 [J].

ELLIOTT, SR ;

HAHN, AA ;

MOE, MK .

PHYSICAL REVIEW LETTERS, 1987, 59 (15) :1649-1651

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