Measurement of ep → e ' p π⁺π⁻ and Baryon Resonance Analysis

Authors

M. Bektasoglu, Old Dominion University
L. Ciciani, Old Dominion University
K. V. Dharmawardane, Old Dominion University
G. E. Dodge, Old Dominion UniversityFollow
T. A. Forest, Old Dominion University
C. E. Hyde-Wright, Old Dominion UniversityFollow
A. Klein, Old Dominion University
A. V. Klimenko, Old Dominion University
S. E. Kuhn, Old Dominion UniversityFollow
R. A. Niyazov, Old Dominion University
L. M. Qin, Old Dominion University
F. Sabatié, Old Dominion University
S. Stepanyan, Old Dominion University
L. B. Weinstein, Old Dominion UniversityFollow
J. Yun, Old Dominion University
et al.
CLAS Collaboration

Document Type

Article

Publication Date

2003

DOI

10.1103/PhysRevLett.91.022002

Publication Title

Physical Review Letters

Volume

91

Issue

2

Pages

1-6

Abstract

The cross section for the reaction ep→ e'pπ⁺π^- was measured in the resonance region for 1.4 2 < 1.5 GeV²/c²using the CLAS detector at Jefferson Laboratory. The data show resonant structures not visible in previous experiments. The comparison of our data to a phenomenological prediction using available information on N* and Δ states shows an evident discrepancy. A better description of the data is obtained either by a sizable change of the properties of the P₁₃(1720) resonance or by introducing a new baryon state, not reported in published analyses.

Comments

© 2003 The American Physical Society

"Yes, the author or the author's employer may use all or part of the APS published article, including the APS-prepared version (e.g., the PDF from the online journal) without revision or modification, on the author's or employer's website as long as a fee is not charged. If a fee is charged, then APS permission must be sought. In all cases, the appropriate bibliographic citation and notice of the APS copyright must be included."

Publisher's version available at: https://doi.org/10.1103/PhysRevLett.91.022002

Original Publication Citation

Dodge, G.E., Hyde-Wright, C.E., Kuhn, S.E., Niyazov, R.A., Stepanyan, S., Weinstein, L.B., et al., CLAS Collaboration (2003). Measurement of ep → e ' p π⁺π⁻ and baryon resonance analysis. Physical Review Letters, 91(2), 1-6, Article 022002. https://doi.org/10.1103/PhysRevLett.91.022002

ORCID

0000-0003-1582-2376 (Dodge), 0000-0001-7282-8120 (Hyde-Wright), 0000-0003-2243-6836 (Kuhn), 0000-0001-5416-2900 (Weinstein)

Repository Citation

Bektasoglu, M.; Ciciani, L.; Dharmawardane, K. V.; Dodge, G. E.; Forest, T. A.; Hyde-Wright, C. E.; Klein, A.; Klimenko, A. V.; Kuhn, S. E.; Niyazov, R. A.; Qin, L. M.; Sabatié, F.; Stepanyan, S.; Weinstein, L. B.; Yun, J.; et al.; and CLAS Collaboration, "Measurement of ep → e ' p π⁺π⁻ and Baryon Resonance Analysis" (2003). Physics Faculty Publications. 514.
https://digitalcommons.odu.edu/physics_fac_pubs/514