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Title: Near threshold electroproduction of the omega meson at Q2 {approx} 0.5 GeV2

Abstract

Electroproduction of the omega meson was investigated in the p(e,e'p)omega reaction. The measurement was performed at a 4-momentum transfer Q2 {approx} 0.5 GeV2. Angular distributions of the virtual photon-proton center-of-momentum cross sections have been extracted over the full angular range. These distributions exhibit a strong enhancement over t-channel parity exchange processes in the backward direction. According to a newly developed electroproduction model, this enhancement provides significant evidence of resonance formation in the gamma* p -> omega p reaction channel.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
823590
Report Number(s):
JLAB-PHY-04-11; DOE/ER/40150-2660; nucl-ex/0403003
TRN: US0401771
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Resource Relation:
Other Information: No journal information given for this preprint; PBD: 1 Mar 2004
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANGULAR DISTRIBUTION; CROSS SECTIONS; ELECTROPRODUCTION; MESONS; PARITY; RESONANCE; T CHANNEL

Citation Formats

Ambrozewicz, P, Mitchell, J, Dunne, J, Markowitz, P, Martoff, C J, Reinhold, J, Zeidman, B, and Jefferson Laboratory E91-016 Collaboration). Near threshold electroproduction of the omega meson at Q2 {approx} 0.5 GeV2. United States: N. p., 2004. Web.
Ambrozewicz, P, Mitchell, J, Dunne, J, Markowitz, P, Martoff, C J, Reinhold, J, Zeidman, B, & Jefferson Laboratory E91-016 Collaboration). Near threshold electroproduction of the omega meson at Q2 {approx} 0.5 GeV2. United States.
Ambrozewicz, P, Mitchell, J, Dunne, J, Markowitz, P, Martoff, C J, Reinhold, J, Zeidman, B, and Jefferson Laboratory E91-016 Collaboration). Mon . "Near threshold electroproduction of the omega meson at Q2 {approx} 0.5 GeV2". United States. https://www.osti.gov/servlets/purl/823590.
@article{osti_823590,
title = {Near threshold electroproduction of the omega meson at Q2 {approx} 0.5 GeV2},
author = {Ambrozewicz, P and Mitchell, J and Dunne, J and Markowitz, P and Martoff, C J and Reinhold, J and Zeidman, B and Jefferson Laboratory E91-016 Collaboration)},
abstractNote = {Electroproduction of the omega meson was investigated in the p(e,e'p)omega reaction. The measurement was performed at a 4-momentum transfer Q2 {approx} 0.5 GeV2. Angular distributions of the virtual photon-proton center-of-momentum cross sections have been extracted over the full angular range. These distributions exhibit a strong enhancement over t-channel parity exchange processes in the backward direction. According to a newly developed electroproduction model, this enhancement provides significant evidence of resonance formation in the gamma* p -> omega p reaction channel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {3}
}