Photoproduction of the Lambda(1405) measured at CLAS

Conference · Sun Aug 01 00:00:00 EDT 2010

DOI:https://doi.org/10.1143/PTPS.186.234· OSTI ID:1026820

Kei Moriya, CLAS Collaboration

Using the CLAS detector system in Hall B at Jefferson Lab, we have done a high statistics measurement of the photoproduction of K{sup +} {Lambda}(1405) on a proton target. The reconstructed invariant mass in the three different {Sigma} {pi} decay modes has been measured, as well as the differential cross section. Our goal is to understand the nature of the {Lambda}(1405), which has been a longstanding puzzle for decades. Its peculiar mass distribution is not well understood, and studies have shown that it may possess strong dynamical components, which could be extracted from our data. Various aspects of our analysis are discussed, and preliminary results are shown.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1026820
• Report Number(s): JLAB-PHY-10-1324; DOE/OR/23177-1853; TRN: US1105137
• Resource Relation: Conference: New Frontiers In QCD 2010: Exotic Hadron Systems And Dense Matter, 18 Jan - 19 Mar 2010, Kyoto, Japan
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
DECAY
DIFFERENTIAL CROSS SECTIONS
HADRONS
LAMBDA-1405 BARYONS
KAONS PLUS
MASS DISTRIBUTION
PHOTOPRODUCTION
PROTONS
QUANTUM CHROMODYNAMICS
STATISTICS