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Journal articles
Measurement of Direct f0(980) Photoproduction on the Proton
M. Battaglieri
S. Bouchigny
1
A. Fradi
1
M. Guidal
1
C. Hadjidakis
1
H. S. Jo
1
M. Maccormick
1
B. Moreno
1
S.A. Morrow
1, 2
S. Niccolai
1
R. de Masi
2
F. X. Girod
2
P. Konczykowski
2
J. M. Laget
2
F. Sabatié
2
1
IPNO - Institut de Physique Nucléaire d'Orsay (IPN - 15, rue Georges Clemenceau - 91406 ORSAY CEDEX - France)
- UP11 - Université Paris-Sud - Paris 11 (Bâtiment 300 - 91405 Orsay cedex - France)
- IN2P3 - Institut National de Physique Nucléaire et de Physique des Particules du CNRS (France)
- CNRS - Centre National de la Recherche Scientifique : UMR8608 (France)
2
DPHN - Département de Physique Nucléaire (ex SPhN) (France)
- IRFU - Institut de Recherches sur les lois Fondamentales de l'Univers : DRF/IRFU/DPHN (CEA Saclay
F-91191 Gif sur Yvette cedex - France)
- CEA - Commissariat à l'énergie atomique et aux énergies alternatives : DRF/IRFU (Centre de Saclay Centre de Grenoble Centre de Cadarache etc - France)
- Université Paris-Saclay (Espace Technologique, Bat. Discovery - RD 128 - 2e ét., 91190 Saint-Aubin - France)
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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http://hal.in2p3.fr/in2p3-00868900
Contributor : Sophie Heurteau <>
Submitted on : Wednesday, October 2, 2013 - 10:40:14 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:30 PM
Contributor : Sophie Heurteau <>
Submitted on : Wednesday, October 2, 2013 - 10:40:14 AM
Last modification on : Wednesday, September 16, 2020 - 4:08:30 PM
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- HAL Id : in2p3-00868900, version 1
- DOI : 10.1103/PhysRevLett.102.102001
Citation
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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