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Simon Taylor; Gordon Mutchler; CLAS Collaboration
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States). Funding organisation: USDOE Office of Energy Research ER (United States)2005
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States). Funding organisation: USDOE Office of Energy Research ER (United States)2005
AbstractAbstract
[en] The electromagnetic decays of the Σ0(1385) and Λ(1520) hyperons were studied in photon-induced reactions γ p → K+ Λ(1116)γ in the CLAS detector at the Thomas Jefferson National Accelerator Facility. We report the first observation of the radiative decay of the Σ0(1385) and a measurement of the Λ(1520) radiative decay width. For the Σ0(1385) → Λ(1116)γ transition, we measured a partial width of 479 ± 120(stat)-100+81(sys) keV, larger than all of the existing model predictions. For the Λ(1520) → Λ(1116)γ transition, we obtained a partial width of 167 ± 43(stat)-12+26(sys) keV
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1 Mar 2005; 392.9 Kilobytes; DOE/ER--40150-3204; HEP-EX--0503014; AC05-84ER40150; Available from PURL: https://www.osti.gov/servlets/purl/837857-vtbSfu/native/
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Miscellaneous
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ACCELERATORS, BARYONS, BASIC INTERACTIONS, BOSONS, DECAY, ELECTROMAGNETIC INTERACTIONS, ELEMENTARY PARTICLES, FERMIONS, HADRONS, HYPERONS, INTERACTIONS, KAONS, LAMBDA BARYONS, LINEAR ACCELERATORS, MEASURING INSTRUMENTS, MESONS, PARTICLE DECAY, PARTICLE INTERACTIONS, PARTICLE PRODUCTION, PARTICLE PROPERTIES, PHOTON-BARYON INTERACTIONS, PHOTON-HADRON INTERACTIONS, PSEUDOSCALAR MESONS, SPECTROMETERS, STRANGE MESONS, STRANGE PARTICLES
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