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The ep -->e'p eta reaction at and above the S11(1535) baryon resonance.
- Source :
-
Physical review letters [Phys Rev Lett] 2001 Feb 26; Vol. 86 (9), pp. 1702-6. - Publication Year :
- 2001
-
Abstract
- New cross sections for the reaction e p-->e p eta are reported for total center of mass energy W = 1.5--1.86 GeV 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 eta N coupling strengths of baryon resonances. Newly observed structure at W approximately 1.65 GeV 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.
Details
- Language :
- English
- ISSN :
- 0031-9007
- Volume :
- 86
- Issue :
- 9
- Database :
- MEDLINE
- Journal :
- Physical review letters
- Publication Type :
- Academic Journal
- Accession number :
- 11290228
- Full Text :
- https://doi.org/10.1103/PhysRevLett.86.1702