Covariant nucleon electromagnetic form factors from the Goldstone-boson-exchange quark model

被引:151
作者
Wagenbrunn, RF
Boffi, S
Klink, W
Plessas, W
Radici, M
机构
[1] Graz Univ, Inst Theoret Phys, A-8010 Graz, Austria
[2] Univ Pavia, Dipartimento Fis Nucl & Teor, I-27100 Pavia, Italy
[3] Ist Nazl Fis Nucl, Sez Pavia, I-27100 Pavia, Italy
[4] Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA
关键词
nucleon electromagnetic form factors; constituent quark model; point-form quantum mechanics;
D O I
10.1016/S0370-2693(01)00622-0
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We present a study of pro ton and neutron electromagnetic form factors for the recently proposed Goldstone-boson-exchange constituent quark model. Results for charge radii, magnetic moments, and electric as well as magnetic form factors are reported. The calculations are performed in a covariant framework using the point-form approach to relativistic quantum mechanics. All the predictions by the Goldstone-boson-exchange constituent quark model are found to fall remarkably close to existing experimental data. (C) 2001 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:33 / 39
页数:7
相关论文
共 45 条
[11]  
Cardarelli F, 1999, FEW BODY SY, V11, P66
[12]   Relativistic effects on the neutron charge form factor in the constituent quark model [J].
Cardarelli, F ;
Simula, S .
PHYSICS LETTERS B, 1999, 467 (1-2) :1-7
[13]  
CARDARELLI F, NUCLTH0006023
[14]   Poincare-covariant quark models of baryon form factors [J].
Coester, F ;
Riska, DO .
FEW-BODY SYSTEMS, 1998, 25 (1-3) :29-43
[15]   FORMS OF RELATIVISTIC DYNAMICS [J].
DIRAC, PAM .
REVIEWS OF MODERN PHYSICS, 1949, 21 (03) :392-399
[16]   ELECTRIC FORM-FACTOR OF THE NEUTRON FROM THE H-2(E-],E'N-])H-1 REACTION AT Q(2)=0.255 (GEV/C)2 [J].
EDEN, T ;
MADEY, R ;
ZHANG, WM ;
ANDERSON, BD ;
ARENHOVEL, H ;
BALDWIN, AR ;
BARKHUFF, D ;
BEARD, KB ;
BERTOZZI, W ;
CAMERON, JM ;
CHANG, CC ;
DODSON, GW ;
DOW, K ;
FARKHONDEH, M ;
FINN, JM ;
FLANDERS, BS ;
HYDEWRIGHT, C ;
JIANG, WD ;
KEANE, D ;
KELLY, JJ ;
KORSCH, W ;
KOWALSKI, S ;
LOURIE, R ;
MANLEY, DM ;
MARKOWITZ, P ;
MOUGEY, J ;
NI, B ;
PAYERLE, T ;
PELLA, PJ ;
REICHELT, T ;
RUTT, PM ;
SPRAKER, M ;
TIEGER, D ;
TURCHINETZ, W ;
ULMER, PE ;
VANVERST, S ;
WATSON, JW ;
WEINSTEIN, LB ;
WHITNEY, RR .
PHYSICAL REVIEW C, 1994, 50 (04) :R1749-R1753
[17]   MEASUREMENT OF THE NEUTRON MAGNETIC FORM-FACTOR FROM INCLUSIVE QUASI-ELASTIC SCATTERING OF POLARIZED ELECTRONS FROM POLARIZED HE-3 [J].
GAO, H ;
ARRINGTON, J ;
BEISE, EJ ;
BRAY, B ;
CARR, RW ;
FILIPPONE, BW ;
LUNG, A ;
MCKEOWN, RD ;
MUELLER, B ;
PITT, ML ;
JONES, CE ;
DESCHEPPER, D ;
DODSON, G ;
DOW, K ;
ENT, R ;
FARKHONDEH, M ;
HANSEN, JO ;
KORSCH, W ;
KRAMER, LH ;
LEE, K ;
MAKINS, N ;
MILNER, RG ;
TIEGER, DR ;
WELCH, TP ;
CANDELL, E ;
NAPOLITANO, J ;
WOJTSEKHOWSKI, BB ;
TRIPP, C ;
LORENZON, W .
PHYSICAL REVIEW C, 1994, 50 (02) :R546-R549
[18]   Pionic fluctuations of constituent quarks and the neutron charge radius [J].
Glozman, LY ;
Riska, DO .
PHYSICS LETTERS B, 1999, 459 (1-3) :49-54
[19]   Unified description of light- and strange-baryon spectra [J].
Glozman, LY ;
Plessas, W ;
Varga, K ;
Wagenbrunn, RF .
PHYSICAL REVIEW D, 1998, 58 (09)
[20]  
Glozman LY, 1996, PHYS REP, V268, P264