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- Spokesperson
- M. Battaglieri
- Abstract
- The cross section for phi meson photoproduction on the proton has been measured for the first time up to a four-momentum transfer -t = 4 GeV2, using the CLAS detector at the Thomas Jefferson National Accelerator Facility. At low four-momentum transfer, the differential cross section is well described by Pomeron exchange. At large four-momentum transfer, above -t = 1.8 GeV2, the data support a model where the Pomeron is resolved into its simplest component, two gluons, which may couple to any quark in the proton and in the phi.
- Publication
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- E. Anciant, T. Auger, G. Audit, M. Battaglieri, J. M. Laget, C. Marchand, and CLAS Collaboration Photoproduction of Phi(1020) Mesons on the Proton at Large Momentum Transfer // Phys.Rev.Let.85,4682(2000)
- Quantities
- dσ/dt
Measurements
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ID | Quantity | Beam | Target | Final state |
Q2min, GeV2 |
Q2max, GeV2 |
Wmin, GeV |
Wmax, GeV |
---|---|---|---|---|---|---|---|---|
E70M1 | dσ/dt | γ | p | φ(1020) p | 0.0 | 0.0 | 2.66 | 2.86 |
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