The strange beauty of the proton

被引：0
作者：
Bijker, Roelof [1 ,2 ]
Ferretti, Jacopo [1 ,2 ]
Santopinto, Elena
机构：
[1] Univ Nacl Autonoma Mexico, Inst Ciencias Nucl, AP 70-543, Mexico City 04510, DF, Mexico
[2] Ist Nazl Fis Nucl, I-16146 Genoa, Italy
来源：
BEAUTY IN PHYSICS: THEORY AND EXPERIMENT: IN HONOR OF FRANCESCO LACHELLO ON THE OCCASION OF HIS 70TH BIRTHDAY | 2012年 / 1488卷
关键词：
Phenomenological quark models; light quarks; protons and neutrons; VIOLATING ELECTRON-SCATTERING; ZWEIG-IIZUKA RULE; FORM-FACTORS; FLAVOR ASYMMETRY; MAGNETIC-MOMENTS; HADRONIC LOOPS; NUCLEON; SPECTROSCOPY;
D O I：
10.1063/1.4759380
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The contribution of strange quarks to the proton is addressed in two different models of the nucleon, a phenomenological two-component model in which the nucleon is described in terms of an intrinsic three-quark structure surrounded by a meson cloud, and the unquenched quark model in which the effects of the sea quarks are taken into account through a P-3(0) quark-antiquark pair creation mechanism. The results for the strange magnetic moment and the strangeness radius of the proton are found to be small, in agreement with the latest experimental results from parity-violating electron scattering and recent lattice calculations.
引用
收藏
页码：35 / 43
页数：9
相关论文
共 53 条
[31]   NUCLEAR AND NUCLEON SCATTERING OF HIGH-ENERGY ELECTRONS [J].
HOFSTADTER, R .
ANNUAL REVIEW OF NUCLEAR SCIENCE, 1957, 7 :231-316
[32]   ANALYSIS OF ELECTROMAGNETIC NUCLEON FORM-FACTORS [J].
HOHLER, G ;
PIETARINEN, E ;
SABBASTEFANESCU, I ;
BORKOWSKI, F ;
SIMON, GG ;
WALTHER, VH ;
WENDLING, RD .
NUCLEAR PHYSICS B, 1976, 114 (03) :505-534
[33]   Electro-magnetic nucleon form factors and their spectral functions in soliton models [J].
Holzwarth, G .
ZEITSCHRIFT FUR PHYSIK A-HADRONS AND NUCLEI, 1996, 356 (03) :339-350
[34]   Electromagnetic form factors of the nucleon and Compton scattering [J].
Hyde-Wright, CE ;
de Jager, K .
ANNUAL REVIEW OF NUCLEAR AND PARTICLE SCIENCE, 2004, 54 :217-267
[35]   SEMI-PHENOMENOLOGICAL FITS TO NUCLEON ELECTROMAGNETIC FORM-FACTORS [J].
IACHELLO, F ;
JACKSON, AD ;
LANDE, A .
PHYSICS LETTERS B, 1973, B 43 (03) :191-196
[36]   Spin structure of the nucleon-status and recent results [J].
Kuhn, S. E. ;
Chen, J. -P. ;
Leader, E. .
PROGRESS IN PARTICLE AND NUCLEAR PHYSICS, VOL 63, NO 1, 2009, 63 (01) :1-50
[37]   Flavor asymmetry of antiquark distributions in the nucleon [J].
Kumano, S .
PHYSICS REPORTS-REVIEW SECTION OF PHYSICS LETTERS, 1998, 303 (04) :183-257
[38]   Strange electric form factor of the proton [J].
Leinweber, D. B. ;
Boinepalli, S. ;
Thomas, A. W. ;
Wang, P. ;
Williams, A. G. ;
Young, R. D. ;
Zanotti, J. M. ;
Zhang, J. B. .
PHYSICAL REVIEW LETTERS, 2006, 97 (02)
[39]   Precise determination of the strangeness magnetic moment of the nucleon [J].
Leinweber, DB ;
Boinepalli, S ;
Cloet, IC ;
Thomas, AW ;
Williams, AG ;
Young, RD ;
Zanotti, JM ;
Zhang, JB .
PHYSICAL REVIEW LETTERS, 2005, 94 (21)
[40]   Global analysis of nucleon strange form factors at low Q2 [J].
Liu, Jianglai ;
McKeown, Robert D. ;
Ramsey-Musolf, Michael J. .
PHYSICAL REVIEW C, 2007, 76 (02)
123456