Measurement of Excited Hyperons in Photoproduction at CLAS

Conference · Wed Jan 01 00:00:00 EST 2014 · International Journal of Modern Physics: Conference Series

DOI:https://doi.org/10.1142/S2010194514600842· OSTI ID:1122833

Moriya, Kei ^[1]; Schumacher, Reinhard A. ^[2]

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1. Indiana Univ., Bloomington, IN (United States)
2. Carnegie Mellon Univ., Pittsburgh, PA (United States)

Measurement results of photoproduced excited hyperon states using the CLAS detector at Jefferson Lab are shown. The invariant mass distribution of the {Lambda}(1405) has recently been shown to be different for each of the three Sigma pi channels that it decays to, showing that there is prominent interference between the isospin I=0 and I=1 isospin amplitudes. Measurements of the differential and total cross sections of the three hyperons {Lambda}(1405), {Sigma}{sup 0}(1385), and Lambda(1520) are presented and compared. Prospects of future studies using a 12 GeV beam with the GlueX detector are briefly given.

• 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: 1122833
• Report Number(s): JLAB-PHY-13-1790; DOE/OR/23177-2786; arXiv:1309.4472; TRN: US1400261
• Journal Information: International Journal of Modern Physics: Conference Series, Vol. 26; Conference: NSTAR 2013, Valencia (Spain) 27-30 May 2013
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
hyperons
{Lambda}(1405)
{Sigma}(1385)
{Lambda}(1520)
CLAS
GlueX
photoproduction.