Reduced occupancy of the deeply bound 0d5/2 neutron state in 32Ar -: art. no. 042501

被引：106

作者：

Gade, A ^{[1
]}

Bazin, D

Brown, BA

Campbell, CM

Church, JA

Dinca, DC

Enders, J

Glasmacher, T

Hansen, PG

Hu, Z

Kemper, KW

Mueller, WF

Olliver, H

Perry, BC

Riley, LA

Roeder, BT

Sherrill, BM

Terry, JR

Tostevin, JA

Yurkewicz, KL

机构：

[1] Michigan State Univ, Natl Superconducting Cyclotron Lab, E Lansing, MI 48824 USA

[2] Michigan State Univ, Dept Phys & Astron, E Lansing, MI 48824 USA

[3] Florida State Univ, Dept Phys, Tallahassee, FL 32306 USA

[4] Ursinus Coll, Dept Phys & Astron, Collegeville, PA 19426 USA

[5] Univ Surrey, Sch Elect & Phys Sci, Dept Phys, Guildford GU2 7XH, Surrey, England

来源：

PHYSICAL REVIEW LETTERS | 2004年 / 93卷 / 04期

基金：

英国工程与自然科学研究理事会; 美国国家科学基金会;

关键词：

D O I：

10.1103/PhysRevLett.93.042501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Be-9(Ar-32,Ar-31)X reaction, leading to the 5/2(+) ground state of a nucleus at the proton drip line, has a cross section of 10.4(13) mb at a beam energy of 65.1 MeV/nucleon. This translates into a spectroscopic factor that is only 24(3)% of that predicted by the many-body shell-model theory. We introduce refinements to the eikonal reaction theory used to extract the spectroscopic factor to clarify that this very strong reduction represents an effect of nuclear structure. We suggest that it reflects correlation effects linked to the high neutron separation energy (22.0 MeV) for this state.

引用

页码：042501 / 1

页数：4

共 33 条

[1] The S800 spectrograph [J].

Bazin, D ;

Caggiano, JA ;

Sherrill, BM ;

Yurkon, J ;

Zeller, A .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2003, 204 :629-633

[2] RECONSTRUCTIVE CORRECTION OF ABERRATIONS IN NUCLEAR-PARTICLE SPECTROGRAPHS [J].

BERZ, M ;

JOH, K ;

NOLEN, JA ;

SHERRILL, BM ;

ZELLER, AF .

PHYSICAL REVIEW C, 1993, 47 (02) :537-544

[3] EFFECTS OF THE N-N POTENTIAL CORE ON THE SPECTROSCOPIC SUM-RULES FOR ONE-NUCLEON TRANSFER [J].

BIRSE, MC ;

CLEMENT, CF .

NUCLEAR PHYSICS A, 1981, 351 (01) :112-126

[4] STUDY OF THE GIANT GAMOW-TELLER RESONANCE IN NUCLEAR BETA-DECAY - THE CASE OF AR-32 [J].

BJORNSTAD, T ;

BORGE, MJG ;

DESSAGNE, P ;

VONDINCKLAGE, RD ;

EWAN, GT ;

HANSEN, PG ;

HUCK, A ;

JONSON, B ;

KLOTZ, G ;

KNIPPER, A ;

LARSSON, PO ;

NYMAN, G ;

RAVN, HL ;

RICHARDSERRE, C ;

RIISAGER, K ;

SCHARDT, D ;

WALTER, G .

NUCLEAR PHYSICS A, 1985, 443 (02) :283-301

[5] Masses of 32Ar and 33Ar for fundamental tests -: art. no. 260801 [J].

Blaum, K ;

Audi, G ;

Beck, D ;

Bollen, G ;

Herfurth, F ;

Kellerbauer, A ;

Kluge, HJ ;

Sauvan, E ;

Schwarz, S .

PHYSICAL REVIEW LETTERS, 2003, 91 (26)

[6] Spin and magnetic moment of 31Al ground state [J].

Borremans, D ;

Teughels, S ;

Smirnova, NA ;

Balabanski, DL ;

Coulier, N ;

Daugas, JM ;

Santos, FD ;

Georgiev, G ;

Lewitowicz, M ;

Matea, I ;

Penionzhkevich, YE ;

Schmidt-Ott, WD ;

Sobolev, Y ;

Stanoiu, M ;

Vyvey, K ;

Neyens, G .

PHYSICS LETTERS B, 2002, 537 (1-2) :45-50

[7] New Skyrme interaction for normal and exotic nuclei [J].

Brown, BA .

PHYSICAL REVIEW C, 1998, 58 (01) :220-231

[8] Interaction cross sections for light neutron-rich nuclei [J].

Brown, BA ;

Typel, S ;

Richter, WA .

PHYSICAL REVIEW C, 2002, 65 (01) :146121-146125

[9] Absolute spectroscopic factors from nuclear knockout reactions [J].

Brown, BA ;

Hansen, PG ;

Sherrill, BM ;

Tostevin, JA .

PHYSICAL REVIEW C, 2002, 65 (06) :4

[10]

BROWN BA, 1988, ANNU REV NUCL PART S, V38, P29

← 1 2 3 4 →