Photoproduction of K*+ Lambda and K+Sigma(1385) in the reaction gamma p-->K+Lambda pi0 at Jefferson Lab
The search for missing nucleon resonances using coupled channel analysis has mostly been concentrated on N{pi} and KY channels, while the contributions of K*Y and KY* channels have not been investigated thoroughly mostly due to the lack of data. With an integrated luminosity of about 75 pb{sup -1}, the photoproduction data using a proton target recently collected by the CLAS Collaboration at Jefferson Lab with a photon energy range of 1.5-3.8 GeV provided large statistics for the study of light hyperon photoproduction through exclusive reactions. The reaction {gamma}p {yields} K{sup +}{Lambda}{pi}{sup 0} has been investigated. Preliminary results of the K*{sup +} {Lambda} and K{sup +}{Sigma}(1385) cross sections are not negligible compared with the KY channels. The {Lambda}{pi}{sup 0} invariant mass spectrum is dominated by the {Sigma}(1385) signal and no significant structure was found around the {Sigma}(1480) region.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE - Office of Energy Research (ER)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 861938
- Report Number(s):
- JLAB-PHY-06-3; DOE/ER/40150-3660; TRN: US0600089
- Resource Relation:
- Conference: Nstar 2005, 12-Oct-05, Tallahhassee, Florida
- Country of Publication:
- United States
- Language:
- English
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