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The ep→e′pη Reaction at and above the S11(1535) Baryon Resonance

Thompson, Richard ; Fissum, Kevin LU orcid and Zhao, Jianbing (2001) In Physical Review Letters 86(9). p.1702-1706
Abstract
New cross sections for the reaction ep→epη are reported for total center of mass energy W=1.5–1.86GeV and invariant momentum transfer Q2=0.25–1.5(GeV/c)2. This large kinematic range allows extraction of important new information about response functions, photocouplings, and ηN coupling strengths of baryon resonances. Newly observed structure at W∼1.65GeV is shown to come from interference between S and P waves and can be interpreted with known resonances. Improved values are derived for the photon coupling amplitude for the S11(1535) resonance.
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author
; and
author collaboration
publishing date
type
Contribution to journal
publication status
published
subject
in
Physical Review Letters
volume
86
issue
9
pages
1702 - 1706
publisher
American Physical Society
external identifiers
  • scopus:4243935384
ISSN
1079-7114
DOI
10.1103/PhysRevLett.86.1702
project
Production of Mesons with Electromagnetic Beams
language
English
LU publication?
no
id
e700249f-3ad5-4175-bb5b-b250398bf94b
date added to LUP
2019-06-24 11:56:18
date last changed
2022-01-31 22:23:54
@article{e700249f-3ad5-4175-bb5b-b250398bf94b,
  abstract     = {{New cross sections for the reaction ep→epη are reported for total center of mass energy W=1.5–1.86GeV and invariant momentum transfer Q2=0.25–1.5(GeV/c)2. This large kinematic range allows extraction of important new information about response functions, photocouplings, and ηN coupling strengths of baryon resonances. Newly observed structure at W∼1.65GeV is shown to come from interference between S and P waves and can be interpreted with known resonances. Improved values are derived for the photon coupling amplitude for the S11(1535) resonance.}},
  author       = {{Thompson, Richard and Fissum, Kevin and Zhao, Jianbing}},
  issn         = {{1079-7114}},
  language     = {{eng}},
  number       = {{9}},
  pages        = {{1702--1706}},
  publisher    = {{American Physical Society}},
  series       = {{Physical Review Letters}},
  title        = {{The ep→e′pη Reaction at and above the S11(1535) Baryon Resonance}},
  url          = {{http://dx.doi.org/10.1103/PhysRevLett.86.1702}},
  doi          = {{10.1103/PhysRevLett.86.1702}},
  volume       = {{86}},
  year         = {{2001}},
}