Measurement of direct f0(980) photoproduction on the proton
Keywords: waves, protons, photoproduction, wave, detectors, analysis, cross, shear, meson, sections, differential, clas, and, Partial, P-, S-waves
Abstract
We report on the results of the first measurement of exclusive f0(980) meson photoproduction on protons for Eγ=3.0-3.8GeV and -t=0.4-1.0GeV2. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. The resonance was detected via its decay in the Ï€+Ï€- channel by performing a partial wave analysis of the reaction γp→pÏ€+Ï€-. Clear evidence of the f0(980) meson was found in the interference between P and S waves at MÏ€+Ï€-∼1GeV. The S-wave differential cross section integrated in the mass range of the f0(980) was found to be a factor of about 50 smaller than the cross section for the Ï meson. This is the first time the f0(980) meson has been measured in a photoproduction experiment. © 2009 The American Physical Society.
Más información
Título según SCOPUS: | Measurement of direct f0(980) photoproduction on the proton |
Título de la Revista: | PHYSICAL REVIEW LETTERS |
Volumen: | 102 |
Número: | 10 |
Editorial: | AMER PHYSICAL SOC |
Fecha de publicación: | 2009 |
Idioma: | eng |
URL: | http://www.scopus.com/inward/record.url?eid=2-s2.0-63249126580&partnerID=q2rCbXpz |
DOI: |
10.1103/PhysRevLett.102.102001 |
Notas: | SCOPUS |