One-neutron knockout of 23O

被引：3

作者：

Cortina-Gil, D ^{[1
]}

Fernandez-Vazquez, J

Aumann, T

Baumann, T

Benlliure, J

Borge, MJG

Chulkov, LV

Pramanik, UD

Forssén, C

Fraile, LM

Geissel, H

Gerl, J

Hammache, F

Itahashi, K

Janik, R

Jonson, B

Mandal, S

Markenroth, K

Meister, M

Mocko, M

Münzenberg, G

Ohtsubo, T

Ozawa, A

Prezado, Y

Pribora, V

Riisager, K

Scheit, H

Schneider, R

Schrieder, G

Simon, H

Sitar, B

Stolz, A

Strmen, P

Sümmerer, K

Szarka, I

Weick, H

机构：

[1] Univ Santiago de Compostela, E-15706 Santiago De Compostela, Spain

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

[3] Michigan State Univ, NSCL, E Lansing, MI 48824 USA

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

[5] Kurchatov Inst, RU-123182 Moscow, Russia

[6] Univ Gothenburg, Chalmers Tekn Hogskola, Avd Expt Fys, SE-41296 Gothenburg, Sweden

[7] Univ Tokyo, Dept Phys, Bunkyo Ku, Tokyo 113, Japan

[8] Comenius Univ, Fac Math & Phys, Bratislava 84215, Slovakia

[9] RIKEN, Wako, Saitama 305101, Japan

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

[11] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[12] Tech Univ Munich, Dept Phys E12, D-85748 Garching, Germany

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

来源：

EUROPEAN PHYSICAL JOURNAL A | 2005年 / 25卷 / Suppl 1期

关键词：

D O I：

10.1140/epjad/i2005-06-149-2

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：

Breakup reactions were used to study the ground-state configuration of the neutron-rich isotope O-23. The O-22 fragments produced in one-nucleon removal from O-23 at 938 MeV/nucleon in a carbon target were detected in coincidence with de-exciting gamma rays, allowing to discern between 220 ground-state and excited-states contributions. From the comparison of exclusive experimental momentum distributions for the one-neutron removal channel to theoretical momentum distributions calculated in an Eikonal model for the knockout process, and spin and parity assignment of I-pi = 1/2(+) was deduced for the 230 ground state. This result solved the existent experimental discrepancy.

引用

页码：343 / 346

页数：4

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