The cross section for φ 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 φ.
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Titolo: | Photoproduction of φ(1020) Mesons on the Proton at Large Momentum Transfer |
Autori: | |
Data di pubblicazione: | 2000 |
Rivista: | |
Abstract: | The cross section for φ 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 φ. |
Handle: | http://hdl.handle.net/11567/392269 |
Appare nelle tipologie: | 01.01 - Articolo su rivista |
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