NEUTRON DEFORMATION PARAMETER FROM COMPARATIVE-STUDY OF PI+ AND PI- INELASTIC-SCATTERING

被引：54
作者：
IVERSEN, S
OBST, A
SETH, KK
THIESSEN, HA
MORRIS, CL
TANAKA, N
SMITH, E
AMANN, JF
BOUDRIE, R
BURLESON, G
DEVEREUX, M
SWENSON, LW
VARGHESE, P
BOYER, K
BRAITHWAITE, WJ
COTTINGAME, W
MOORE, CF
机构：
[1] NORTHWESTERN UNIV,EVANSTON,IL 60201
[2] UNIV CALIF,LOS ALAMOS SCI LAB,LOS ALAMOS,NM 87545
[3] CARNEGIE MELLON UNIV,PITTSBURGH,PA 15213
[4] UNIV COLORADO,BOULDER,CO 80302
[5] NEW MEXICO STATE UNIV,LAS CRUCES,NM 88001
[6] OREGON STATE UNIV,CORVALLIS,OR 97331
[7] UNIV TEXAS,AUSTIN,TX 78712
来源：
PHYSICAL REVIEW LETTERS | 1978年 / 40卷 / 01期
关键词：
D O I：
10.1103/PhysRevLett.40.17
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Differential cross sections for the excitation of the 2+ state in O18 by 230-MeV pions are found to be about 70% larger for - than for +. Since the -nucleon interaction at this energy is dominated by the (3,3) resonance, it is concluded that the results imply that Rn1.3Rp, or alternatively, that (R)n (valence neutrons) 3(R)c(core), where is the deformation parameter and R the equilibrium radius of the deformed potential. We believe that these results constitute the first example of measurement of the neutron deformation parameter. © 1978 The American Physical Society.
引用
收藏
页码：17 / 20
页数：4
相关论文
共 25 条
[11]   DWPI - COMPUTER-PROGRAM TO CALCULATE INELASTIC-SCATTERING OF PIONS FROM NUCLEI [J].
EISENSTEIN, RA ;
MILLER, GA .
COMPUTER PHYSICS COMMUNICATIONS, 1976, 11 (01) :95-112
[12]  
ENGELAND TK, 1976, PHYS REV L, V36, P996
[13]   NUCLEAR COEXISTENCE IN O-18 [J].
ERIKSON, T ;
BROWN, GE .
NUCLEAR PHYSICS A, 1977, 277 (01) :1-14
[14]   MACROSCOPIC AND MICROSCOPIC MODEL ANALYSIS OF POLARIZED PROTONS SCATTERING ON O-18 [J].
ESCUDIE, JL ;
LOMBARD, R ;
PIGNANELLI, M ;
RESMINI, F ;
TARRATS, A .
PHYSICAL REVIEW C, 1974, 10 (05) :1645-1662
[15]   DETERMINATION OF STATIC QUADRUPOLE-MOMENT OF 1.98-MEV 2+ STATE IN O-18 [J].
FLAUM, C ;
BARRETTE, J ;
LEVINE, MJ ;
THORN, CE .
PHYSICAL REVIEW LETTERS, 1977, 39 (08) :446-449
[16]   INELASTIC ELECTRON SCATTERING FROM O1-18 [J].
GROH, JL ;
SINGHAL, RP ;
CAPLAN, HS ;
DOLBILKIN, BS .
CANADIAN JOURNAL OF PHYSICS, 1971, 49 (22) :2743-+
[17]   SCATTERING OF 40.5-MEV ALPHA PARTICLES BY C12 C13 N14 N15 O16 AND O18 [J].
HARVEY, BG ;
MERIWETH.JR ;
MAHONEY, J ;
DENERCY, AB ;
HOREN, DJ .
PHYSICAL REVIEW, 1966, 146 (03) :712-&
[18]   STRUCTURE OF LOW-LYING POSITIVE-PARITY STATES OF O-18 [J].
LAWSON, RL ;
SERDUKE, FJD ;
FORTUNE, HT .
PHYSICAL REVIEW C, 1976, 14 (03) :1245-1263
[19]  
MADSEN VA, 1975, PHYS REV LETT, V34, P1388
[20]   SENSITIVITY OF PI+ AND PI- INELASTIC-SCATTERING TO DIFFERENCES IN NEUTRON AND PROTON AMPLITUDES [J].
MORRIS, CL .
PHYSICAL REVIEW C, 1976, 13 (04) :1755-1758
123