Hyperon Photo- and Electro- Production Experiments at CLAS

Conference · Mon Mar 01 00:00:00 EST 2010 · Nucl.Phys.A

DOI:https://doi.org/10.1016/j.nuclphysa.2010.01.197· OSTI ID:979566

Schumacher, Reinhard

Developments in strangeness photo- and electro- production off the proton, as investigated using the CLAS system in Hall B at Jefferson Lab, are discussed in this paper. By measuring sufficient spin observables one can decompose the reaction mechanism into elementary amplitudes. We discuss progress toward this end in recent data from CLAS, including cross sections and spin observables. We next discuss new results on the mass distribution of the Λ(1405), which shows signs of being a composite meson-baryon object of mixed isospin. The work on other hyperons such as the Ξ resonances will be mentioned, and future prospects outlined.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 979566
• Report Number(s): JLAB-PHY-09-1129; DOE/OR/23177-1205; TRN: US1003209
• Journal Information: Nucl.Phys.A, Vol. 835, Issue 1-4; Conference: HYP-X, 14-18 Sep 2009, Tokai, Ibaraki, Japan
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
CROSS SECTIONS
HYPERONS
ISOSPIN
MASS DISTRIBUTION
PRODUCTION
REACTION KINETICS
SPIN
STRANGENESS
hyperons
photoproduction
electroproduction
CLAS
spin observables
Λ(1405)
baryon resonances