Gluonic structure of the constituent quark
نویسندگان
چکیده
منابع مشابه
Constituent Quark Structure
In this talk I will motivate the the need for the constituent quark structure. I will also summarize results from the NJL model for the composites of the constituent quark and present an alternative QCD sum rule approach.
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We study the structure of constituent quarks by dressing bare quarks with the Goldstone bosons and its implications for quark distribution functions of hadrons f1(x), g1(x) and h1(x). In particular we discuss effects of the dressing on the nucleon spin structure, and find that contributions to chiral-odd h1(x) is quite different from those to g1(x), which can be measured in the semi-inclusive p...
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has inspired much theoretical and experimental effort to understand the internal spin structure of the nucleon [ 1]. A key issue [ 2] is the role of the axial anomaly in the transition from parton to constituent quark degrees of freedom in low energy QCD. In this paper I explain why some fraction of proton’s spin may be carried by gluon topology. The topological contribution has support only at...
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15 صفحه اولIs Nucleon Spin Structure Inconsistent with Constituent Quark Model?
Hadron structure studies might be traced back to Fermi-Yang [1] and Sakata models [2]. Gell-Mann [3] and Zweig [4] proposed the quark model of hadrons. Lepton-nucleon deep inelastic scattering (DIS) [5] verified the quark structure of hadrons. However the quark revealed in DIS is found to be different from the quark as a carrier of SU(3) symmetry in Gell-Mann-Zweig model. The former is almost a...
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2016
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2016.04.027