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Measurement of Direct f0(980) Photoproduction on the Proton

Abstract : We report on the results of the first measurement of exclusive f0(980) meson photoproduction on protons for Eγ=3.0-3.8 GeV and -t=0.4-1.0 GeV2. Data were collected with the CLAS detector at the Thomas Jefferson National Accelerator Facility. The resonance was detected via its decay in the π+π- channel by performing a partial wave analysis of the reaction γp→pπ+π-. Clear evidence of the f0(980) meson was found in the interference between P and S waves at Mπ+π-∼1 GeV. 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 ρ meson. This is the first time the f0(980) meson has been measured in a photoproduction experiment.
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Contributor : Sophie Heurteau Connect in order to contact the contributor
Submitted on : Wednesday, October 2, 2013 - 10:40:14 AM
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M. Battaglieri, S. Bouchigny, A. Fradi, M. Guidal, C. Hadjidakis, et al.. Measurement of Direct f0(980) Photoproduction on the Proton. Physical Review Letters, American Physical Society, 2009, 102, pp.102001. ⟨10.1103/PhysRevLett.102.102001⟩. ⟨in2p3-00868900⟩



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