NEW SOFT MODE IN THE LI-11 NUCLEUS EXCITED THROUGH (P, P') REACTION

被引：13

作者：

FAYANS, SA ^{[1
]}

ERSHOV, SN ^{[1
]}

SVINAREVA, EF ^{[1
]}

机构：

[1] DUBNA JOINT NUCL RES INST,DUBNA,USSR

来源：

PHYSICS LETTERS B | 1992年 / 292卷 / 3-4期

关键词：

D O I：

10.1016/0370-2693(92)91168-9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Inclusive proton energy spectra from the Li-11(p, p') reaction at E(p) = 60 and 100 MeV are calculated using the distorted wave method and particle-hole nucleon transition densities in a self-consistent mean field. It is shown that the excitation of a cluster of resonances with various spin-parities just above continuum threshold, i.e. a new soft mode, causes a very distinct bump in these spectra with the main contribution, at small scattering angles theta(cm), coming from the soft monopole transitions.

引用

页码：239 / 241

页数：3

共 21 条

[1] OBSERVATION OF FORWARD NEUTRONS FROM THE BREAK-UP OF THE LI-11 NEUTRON HALO [J].

ANNE, R ;

ARNELL, SE ;

BIMBOT, R ;

EMLING, H ;

GUILLEMAUDMUELLER, D ;

HANSEN, PG ;

JOHANNSEN, L ;

JONSON, B ;

LEWITOWICZ, M ;

MATTSSON, S ;

MUELLER, AC ;

NEUGART, R ;

NYMAN, G ;

POUGHEON, F ;

RICHTER, A ;

RIISAGER, K ;

SAINTLAURENT, MG ;

SCHRIEDER, G ;

SORLIN, O ;

WILHELMSEN, K .

PHYSICS LETTERS B, 1990, 250 (1-2) :19-23

[2] REACTION CROSS-SECTION MEASUREMENTS OF THE NEUTRON-RICH ISOTOPES LI-8,LI-9,LI-11, AT 80 MEV NUCLEON [J].

BLANK, B ;

GAIMARD, JJ ;

GEISSEL, H ;

SCHMIDT, KH ;

STELZER, H ;

SUMMERER, K ;

BAZIN, D ;

DELMORAL, R ;

DUFOUR, JP ;

FLEURY, A ;

HUBERT, F ;

CLERC, HG ;

STEINER, M .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1991, 340 (01) :41-50

[3] SCATTERING AND REACTION DYNAMICS FOR THE C-12+P SYSTEM [J].

COMFORT, JR ;

KARP, BC .

PHYSICAL REVIEW C, 1980, 21 (06) :2162-2176

[4]

Efimov V., 1990, Comments on Nuclear and Particle Physics, V19, P271

[5]

EFIMOV VN, 1971, SOV J NUCL PHYS+, V12, P589

[6] GIANT LOW-ENERGY RESONANCES IN NEAR-DRIP-LINE NUCLEI - A NEW SOFT MODE [J].

FAYANS, SA .

PHYSICS LETTERS B, 1991, 267 (04) :443-446

[7] HIGH MULTIPOLARITY NUCLEAR-EXCITATIONS IN THE CONTINUUM [J].

FAYANS, SA ;

PALICHIK, VV ;

PYATOV, NI .

ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1982, 308 (02) :145-148

[8]

FAYANS SA, 1991, OCT P NOTR DAM WORKS

[9] THE NEUTRON HALO OF EXTREMELY NEUTRON-RICH NUCLEI [J].

HANSEN, PG ;

JONSON, B .

EUROPHYSICS LETTERS, 1987, 4 (04) :409-414

[10] ELECTROMAGNETIC DISSOCIATION AND SOFT GIANT-DIPOLE RESONANCE OF THE NEUTRON-DRIPLINE NUCLEUS LI-11 [J].

KOBAYASHI, T ;

SHIMOURA, S ;

TANIHATA, I ;

KATORI, K ;

MATSUTA, K ;

MINAMISONO, T ;

SUGIMOTO, K ;

MULLER, W ;

OLSON, DL ;

SYMONS, TJM ;

WIEMAN, H .

PHYSICS LETTERS B, 1989, 232 (01) :51-55

← 1 2 3 →