Projekt per år
Sammanfattning
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.
Originalspråk | engelska |
---|---|
Sidor (från-till) | 1702-1706 |
Tidskrift | Physical Review Letters |
Volym | 86 |
Nummer | 9 |
DOI | |
Status | Published - 2001 |
Externt publicerad | Ja |
Ämnesklassifikation (UKÄ)
- Subatomär fysik
Fingeravtryck
Utforska forskningsämnen för ”The ep→e′pη Reaction at and above the S11(1535) Baryon Resonance”. Tillsammans bildar de ett unikt fingeravtryck.Projekt
- 1 Aktiva
-
Production of Mesons with Electromagnetic Beams
Fissum, K. (Forskare)
1988/06/01 → …
Projekt: Forskning
Fil