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Title: Quark-Hadron Duality in Mesons Electroproduction

Abstract

The aim of the current work is to study quark-hadron duality in meson electroproduction. While duality between inclusive electron-hadron scattering in the resonance and deep inelastic regimes (Bloom-Gilman or quark-baryon duality) is well established, the existence of a similar duality in meson electroproduction has not yet been tested. In the inclusive case, duality implies that singlequark scattering governs the scale of the reaction: the nucleon resonances act at low Q 2 as one would expect from a scaling behavior. In the semi-inclusive case, the nucleon resonances may similarly affect a scaling behavior in the nal meson channel. On the other hand, it could be that (for example) the Δ resonance does not fall anomalously fast in semi-inclusive scattering, which would provide us with important clues about that phenomenon. New evidence for factorization of the cross section at low energy loss into two pieces - quark scattering and quark fragmentation - guides our approach to this measurement. This work addresses two issues, which are possibly related. Firstly, does the cross section still factorize at low energy loss, and can one reproduce the fragmentation functions determined from high energy scattering? Secondly, do the nucleon resonances average around these high energy fragmentation functions?

Authors:
 [1]
  1. Yerevan Physics Inst. (YerPhI) (Armenia)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
955810
Report Number(s):
JLAB-PHY-07-936; DOE/OR/23177-0602
TRN: US1004754
DOE Contract Number:  
AC05-060R23177
Resource Type:
Thesis/Dissertation
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DUALITY; ELECTROPRODUCTION; MESONS; QUARK-HADRON INTERACTIONS

Citation Formats

Navasardyan, Tigran. Quark-Hadron Duality in Mesons Electroproduction. United States: N. p., 2007. Web. doi:10.2172/955810.
Navasardyan, Tigran. Quark-Hadron Duality in Mesons Electroproduction. United States. doi:10.2172/955810.
Navasardyan, Tigran. Mon . "Quark-Hadron Duality in Mesons Electroproduction". United States. doi:10.2172/955810. https://www.osti.gov/servlets/purl/955810.
@article{osti_955810,
title = {Quark-Hadron Duality in Mesons Electroproduction},
author = {Navasardyan, Tigran},
abstractNote = {The aim of the current work is to study quark-hadron duality in meson electroproduction. While duality between inclusive electron-hadron scattering in the resonance and deep inelastic regimes (Bloom-Gilman or quark-baryon duality) is well established, the existence of a similar duality in meson electroproduction has not yet been tested. In the inclusive case, duality implies that singlequark scattering governs the scale of the reaction: the nucleon resonances act at low Q2 as one would expect from a scaling behavior. In the semi-inclusive case, the nucleon resonances may similarly affect a scaling behavior in the nal meson channel. On the other hand, it could be that (for example) the Δ resonance does not fall anomalously fast in semi-inclusive scattering, which would provide us with important clues about that phenomenon. New evidence for factorization of the cross section at low energy loss into two pieces - quark scattering and quark fragmentation - guides our approach to this measurement. This work addresses two issues, which are possibly related. Firstly, does the cross section still factorize at low energy loss, and can one reproduce the fragmentation functions determined from high energy scattering? Secondly, do the nucleon resonances average around these high energy fragmentation functions?},
doi = {10.2172/955810},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}

Thesis/Dissertation:
Other availability
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