Spectroscopy of the unbound nucleus 11N by the 12C(14N, 15C)11N transfer reaction

被引:35
作者
Lepine-Szily, A
Oliveira, JM
Ostrowski, AN
Bohlen, HG
Lichtenthaler, R
Blazevic, A
Borcea, C
Guimaraes, V
Kalpakchieva, R
Lapoux, V
MacCormick, M
Oliveira, F
von Oertzen, W
Orr, NA
Roussel-Chomaz, P
Stolla, T
Winfield, JS
机构
[1] Univ Sao Paulo, IFUSP, BR-05315970 Sao Paulo, Brazil
[2] Univ Sorocaba, Dept Ciencias & Matemat, Sorocaba, Brazil
[3] Univ Edinburgh, Dept Phys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland
[4] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany
[5] Inst Atom Phys, Bucharest, Romania
[6] UNIP Objet, BR-04026002 Sao Paulo, Brazil
[7] Joint Inst Nucl Res, Flerov Lab Nucl React, Dubna 141980, Russia
[8] CENS, CEA, DSM, DAPNIA,SPHN, F-91191 Gif Sur Yvette, France
[9] GANIL, F-14021 Caen, France
[10] Inst Sci Mat & Rayonnement, LPC, F-14050 Caen, France
关键词
D O I
10.1103/PhysRevLett.80.1601
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A spectroscopic study of the proton-rich, particle unstable nucleus N-11 has been performed using the multinucleon transfer reaction C-12(N-14,C-15)N-11 at 30A MeV incident energy at GANIL. Levels of N-11 are observed as well defined resonances in the spectrum of the C-15 ejectiles. They are localized at 2.18(5), 3.63(5), 4.39(5), 5.12(8), and 5.87(15) MeV above the C-10 + p threshold. The comparison of the measured widths with R-matrix calculations allows the estimation of spins and parities for these resonances.
引用
收藏
页码:1601 / 1604
页数:4
相关论文
共 17 条
[1]   ENERGY-LEVELS OF LIGHT-NUCLEI A = 11-12 [J].
AJZENBERGSELOVE, F .
NUCLEAR PHYSICS A, 1990, 506 (01) :1-158
[2]   DIRECT REACTIONS ON BE-10 [J].
AUTON, DL .
NUCLEAR PHYSICS A, 1970, A157 (01) :305-&
[3]   Study of the unbound nucleus N-11 by elastic resonance scattering [J].
Axelsson, L ;
Borge, MJG ;
Fayans, S ;
Goldberg, VZ ;
Grevy, S ;
GuillemaudMueller, D ;
Jonson, B ;
Kallman, KM ;
Lonnroth, T ;
Lewitowicz, M ;
Manngard, P ;
Markenroth, K ;
Martel, I ;
Mueller, AC ;
Mukha, I ;
Nilsson, T ;
Nyman, G ;
Orr, NA ;
Riisager, K ;
Rogatchev, GV ;
SaintLaurent, MG ;
Serikov, IN ;
Sorlin, O ;
Tengblad, O ;
Wenander, F ;
Winfield, JS ;
Wolski, R .
PHYSICAL REVIEW C, 1996, 54 (04) :R1511-R1514
[4]   Energies and widths of low-lying levels in Be-11 and N-11 - Comment [J].
Barker, FC .
PHYSICAL REVIEW C, 1996, 53 (03) :1449-1451
[5]   T=3/2 STATES IN MASS-11 NUCLEI [J].
BENENSON, W ;
KASHY, E ;
KONGASIO.DH ;
MOALEM, A ;
NANN, H .
PHYSICAL REVIEW C, 1974, 9 (06) :2130-2133
[6]   SPEG - AN ENERGY-LOSS SPECTROMETER FOR GANIL [J].
BIANCHI, L ;
FERNANDEZ, B ;
GASTEBOIS, J ;
GILLIBERT, A ;
MITTIG, W ;
BARRETTE, J .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 1989, 276 (03) :509-520
[7]  
BOHLEN HG, 1995, NUCL PHYS A, V583, pC775
[8]   The exotic nuclei Be-11 and N-11 in a microscopic cluster model [J].
Descouvemont, P .
NUCLEAR PHYSICS A, 1997, 615 (02) :261-276
[9]   ENERGIES AND WIDTHS OF LOW-LYING LEVELS IN BE-11 AND N-11 [J].
FORTUNE, HT ;
KOLTENUK, D ;
LAU, CK .
PHYSICAL REVIEW C, 1995, 51 (06) :3023-3025
[10]   1D5/2-2S1/2 SPLITTING IN LIGHT-NUCLEI [J].
FORTUNE, HT .
PHYSICAL REVIEW C, 1995, 52 (04) :2261-2263