STUDY OF QUARK-HADRON DUALITY BASED ON A CONSTITUENT QUARK MODEL

2005 ◽  
Vol 20 (08n09) ◽  
pp. 1914-1917
Author(s):  
Y. B. DONG
Keyword(s):  
Inelastic Scattering ◽  
Structure Function ◽  
Quark Model ◽  
Constituent Quark ◽  
Resonance Region ◽  
Constituent Quark Model ◽  
Recent Measurement ◽  
Nucleon Structure ◽  
Nucleon Structure Function ◽  
Hadron Duality

The recent measurement of quark-hadron duality is shortly discussed by using a simple constituent quark model. Comparing with the moments of the structure functions in the resonance region and in the deep inelastic scattering region, we study the occurances of Bloom-Gilman quark-hadron duality for the nucleon structure function F2 and g1. Local duality is also analyzed.

scholarly journals EXPLICIT MODEL REALIZING PARTON–HADRON DUALITY

2012 ◽  
Vol 27 (26) ◽  
pp. 1250157 ◽  
Author(s):  
LÁSZLÓ L. JENKOVSZKY ◽  
VOLODYMYR K. MAGAS ◽  
J. TIMOTHY LONDERGAN ◽  
ADAM P. SZCZEPANIAK
Keyword(s):  
Structure Function ◽  
Veneziano Model ◽  
Nucleon Structure ◽  
Explicit Model ◽  
Pedagogical Model ◽  
Nucleon Structure Function ◽  
Mandelstam Analyticity ◽  
Hadron Duality

We present a model that realizes both resonance-Regge (Veneziano) and parton–hadron (Bloom–Gilman) duality. We first review the features of the Veneziano model and we discuss how parton–hadron duality appears in the Bloom–Gilman model. Then we review limitations of the Veneziano model, namely that the zero-width resonances in the Veneziano model violate unitarity and Mandelstam analyticity. We discuss how such problems are alleviated in models that construct dual amplitudes with Mandelstam analyticity (so-called DAMA models). We then introduce a modified DAMA model, and we discuss its properties. We present a pedagogical model for dual amplitudes and we construct the nucleon structure function F2(x, Q2). We explicitly show that the resulting structure function realizes both Veneziano and Bloom–Gilman duality.

scholarly journals Improved statistical quark model for the nucleon structure function

2010 ◽  
Author(s):  
Carlos Mírez ◽  
A. Deppman ◽  
C. Krug ◽  
G. S. Zahn ◽  
J. L. Rios ◽  
...  
Keyword(s):  
Structure Function ◽  
Quark Model ◽  
Nucleon Structure ◽  
Nucleon Structure Function

scholarly journals A measurement of the nucleon structure function from muon-carbon deep inelastic scattering at high Q2

1981 ◽  
Vol 104 (5) ◽  
pp. 403-408 ◽  
Author(s):  
D. Bollini ◽  
P.L. Frabetti ◽  
G. Heiman ◽  
L. Monari ◽  
F.L. Navarria ◽  
...  
Keyword(s):  
Inelastic Scattering ◽  
Structure Function ◽  
Deep Inelastic Scattering ◽  
Nucleon Structure ◽  
Nucleon Structure Function

scholarly journals Transverse Spin Structure Function

2013 ◽  
Vol 2013 ◽  
pp. 1-5
Author(s):  
H. Bagherpour ◽  
M. Saeedhosseini
Keyword(s):  
Structure Function ◽  
Spin Structure ◽  
Resonance Region ◽  
Transverse Spin ◽  
Nucleon Structure ◽  
Spin Structure Function ◽  
Nucleon Structure Function ◽  
Transverse Spin Structure

The transverse spin-dependent nucleon structure function at large is computed within the Wandzura-Wilczek relation, using NLO fit. Also we investigate the twist-3 contribution of via calculating . It turns out that although the twist-3 part of can be negligible for DIS processes, it has a significant value in resonance region.

scholarly journals Statistical Quark Model for the Nucleon Structure Function

2009 ◽  
Author(s):  
Carlos Mirez ◽  
Lauro Tomio ◽  
Luis A. Trevisan ◽  
Tobias Frederico ◽  
Valdir Guimaraes ◽  
...  
Keyword(s):  
Structure Function ◽  
Quark Model ◽  
Nucleon Structure ◽  
Nucleon Structure Function

Quarks in the bootstrap era

2014 ◽  
Vol 29 (31) ◽  
pp. 1430075
Author(s):  
D. Horn
Keyword(s):  
Quark Model ◽  
Strong Interaction ◽  
Constituent Quark ◽  
Regge Pole ◽  
Constituent Quark Model ◽  
Theoretical Development ◽  
Strong Interactions ◽  
The 1960S ◽  
Bootstrap Idea ◽  
Hadron Duality

The quark model emerged from the Gell-Mann–Ne'eman flavor SU(3) symmetry. Its development, in the context of strong interactions, took place in a heuristic theoretical framework, referred to as the Bootstrap Era. Setting the background for the dominant ideas in strong interaction of the early 1960s, we outline some aspects of the constituent quark model. An independent theoretical development was the emergence of hadron duality in 1967, leading to a realization of the Bootstrap idea by relating hadron resonances (in the s-channel) with Regge pole trajectories (in t- and u-channels). The synthesis of duality with the quark-model has been achieved by duality diagrams, serving as a conceptual framework for discussing many aspects of hadron dynamics toward the end of the 1960s.

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