Photoproduction of the φ(1020) Near Threshold

Conference · Sun Mar 01 04:00:00 EST 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3122164· OSTI ID:2001491

Tedeschi, David J.; Fiore, Roberto; Ivanov, Igor; Papa, Alessandro; Soffer, Jacques

The photoproduction of phi-mesons on the proton was measured at The Thomas Jefferson National Accelerator Facility using a liquid hydrogen target and the CEBAF Large Acceptance Spectrometer (CLAS). The energy of the tagged, bremsstrahlung photons ranged from phi-threshold to 3.8 GeV, and the phi(1020) was identified in the channels phi-->K+K? and phi-->KsK1. The differential cross sections were determined in bins of photon energy and momentum transfer. It is demonstrated that the behavior for low momentum transfer is consistent with diffractive production while the larger momentum transfer indicate the need for mechanisms beyond single Pomeron exchange.

• Research Organization: Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 2001491
• Report Number(s): JLAB-PHY-08-943; DOE/OR/23177-0860
• Conference Information: Journal Name: AIP Conference Proceedings Journal Issue: 1 Journal Volume: 1105
• Country of Publication: United States
• Language: English