Direct experimental evidence for strong admixture of different parity states in 11Li

被引：185

作者：

Simon, H ^{[1
]}

Aleksandrov, D

Aumann, T

Axelsson, L

Baumann, T

Borge, MJG

Chulkov, LV

Collatz, R

Cub, J

Dostal, W

Eberlein, B

Elze, TW

Emling, H

Geissel, H

Grünschloss, A

Hellström, M

Holeczek, J

Holzmann, R

Jonson, B

Kratz, JV

Kraus, G

Kulessa, R

Leifels, Y

Leistenschneider, A

Leth, T

Mukha, I

Münzenberg, G

Nickel, F

Nilsson, T

Nyman, G

Petersen, B

Pfützner, M

Richter, A

Riisager, K

Scheidenberger, C

Schrieder, G

Schwab, W

Smedberg, MH

Stroth, J

Surowiec, A

Tengblad, O

Zhukov, MV

机构：

[1] Tech Univ Darmstadt, Inst Kernphys, D-64289 Darmstadt, Germany

[2] Kurchatov Inst, R-123182 Moscow, Russia

[3] Johannes Gutenberg Univ Mainz, Inst Kernchem, D-55099 Mainz, Germany

[4] Gothenburg Univ, Chalmers Tekn Hohskola, Inst Fys, S-41296 Gothenburg, Sweden

[5] Gesell Schwerionenforsch mbH, D-64291 Darmstadt, Germany

[6] CSIC, Inst Estructura Mat, E-28006 Madrid, Spain

[7] Goethe Univ Frankfurt, Inst Kernphys, D-60486 Frankfurt, Germany

[8] Silesian Univ, Inst Phys, PL-40007 Katowice, Poland

[9] Jagiellonian Univ, Inst Phys, PL-30059 Krakow, Poland

[10] Aarhus Univ, Inst Phys & Astron, DK-8000 Aarhus C, Denmark

[11] CERN, Div EP, CH-1211 Geneva 23, Switzerland

来源：

PHYSICAL REVIEW LETTERS | 1999年 / 83卷 / 03期

关键词：

D O I：

10.1103/PhysRevLett.83.496

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Peripheral fragmentation of a 287 MeV/nucleon beam of the halo nucleus Li-11 incident on a carbon target has been studied in a fragment-neutron coincidence experiment. The momentum distribution of the Li-10 fragments gives access to the momentum distribution of the removed neutron in Li-11. From the shape of the distribution, the (1s(1/2))(2) contribution to the mixture of (1s(1/2))(2) and (0p(1/2))(2) components in the ground-state wave function was determined to he (45 +/- 10)%. The angular correlation between the knocked out neutron and the one from the decay of Li-10 shows a skew distribution signaling interference of these two different parity states.

引用

页码：496 / 499

页数：4

共 19 条

[1] Invariant mass spectrum and α-n correlation function studied in the fragmentation of 6He on a carbon target [J].

Aleksandrov, D ;

Aumann, T ;

Axelsson, L ;

Baumann, T ;

Borge, MJG ;

Chulkov, LV ;

Cub, J ;

Dostal, W ;

Eberlein, B ;

Elze, TW ;

Emling, H ;

Geissel, H ;

Goldberg, VZ ;

Golovkov, M ;

Grunschloss, A ;

Hellstrom, M ;

Holeczek, J ;

Holzmann, R ;

Jonson, B ;

Korshenninikov, AA ;

Kratz, JV ;

Kraus, G ;

Kulessa, R ;

Leifels, Y ;

Leistenschneider, A ;

Leth, T ;

Mukha, I ;

Munzenberg, G ;

Nickel, F ;

Nilsson, T ;

Nyman, G ;

Petersen, B ;

Pfutzner, M ;

Richter, A ;

Riisager, K ;

Scheidenberger, C ;

Schrieder, G ;

Schwab, W ;

Simon, H ;

Smedberg, MH ;

Steiner, M ;

Stroth, J ;

Surowiec, A ;

Suzuki, T ;

Tengblad, OO ;

Zhukov, MV .

NUCLEAR PHYSICS A, 1998, 633 (02) :234-246

[2]

Aoi N, 1997, NUCL PHYS A, V616, pC181, DOI 10.1016/S0375-9474(97)00087-0

[3] Manifestation of the halo structure in momentum distributions from 6He fragmentation [J].

Aumann, T ;

Chulkov, LV ;

Pribora, VN ;

Smedberg, MH .

NUCLEAR PHYSICS A, 1998, 640 (01) :24-36

[4] Elucidating halo structure by beta decay: beta gamma from the Li-11 decay [J].

Borge, MJG ;

Fynbo, H ;

GuillemaudMueller, D ;

Hornshoj, P ;

Humbert, F ;

Jonson, B ;

Leth, TE ;

MartinezPinedo, G ;

Nilsson, T ;

Nyman, G ;

Poves, A ;

RamosLerate, I ;

Riisager, K ;

Schrieder, G ;

Smedberg, M ;

Tengblad, O .

PHYSICAL REVIEW C, 1997, 55 (01) :R8-R11

[5] Angular correlations in peripheral fragmentation of halo nuclei [J].

Chulkov, LV ;

Schrieder, G .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1997, 359 (03) :231-234

[6] Large spin alignment of the unbound He-5 fragment after fragmentation of 240 MeV/nucleon He-6 [J].

Chulkov, LV ;

Aumann, T ;

Aleksandrov, D ;

Axelsson, L ;

Baumann, T ;

Borge, MJG ;

Collatz, R ;

Cub, J ;

Dostal, W ;

Eberlein, B ;

Elze, TW ;

Emling, H ;

Geissel, H ;

Goldberg, VZ ;

Golovkov, M ;

Grunschloss, A ;

Hellstrom, M ;

Holeczek, J ;

Holzmann, R ;

Jonson, B ;

Korsheninnikov, AA ;

Kratz, JV ;

Kraus, G ;

Kulessa, R ;

Leifels, Y ;

Leistenschneider, A ;

Leth, T ;

Mukha, I ;

Munzenberg, G ;

Nickel, F ;

Nilsson, T ;

Nyman, G ;

Peterson, B ;

Pfutzner, M ;

Richter, A ;

Riisager, K ;

Scheidenberger, C ;

Schrieder, G ;

Schwab, W ;

Simon, H ;

Smedberg, MH ;

Steiner, M ;

Stroth, J ;

Surowiec, A ;

Suzuki, T ;

Tengblad, O .

PHYSICAL REVIEW LETTERS, 1997, 79 (02) :201-204

[7] Momentum content of single-nucleon halos [J].

Hansen, PG .

PHYSICAL REVIEW LETTERS, 1996, 77 (06) :1016-1019

[8] NUCLEAR HALOS [J].

HANSEN, PG ;

JENSEN, AS ;

JONSON, B .

ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 1995, 45 :591-634

[9] Breakup reactions of the halo nuclei Be-11 and B-8 [J].

Hencken, K ;

Bertsch, G ;

Esbensen, H .

PHYSICAL REVIEW C, 1996, 54 (06) :3043-3050

[10] Halos and halo excitations [J].

Jonson, B ;

Riisager, K .

PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1998, 356 (1744) :2063-2081

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