Recent studies of the leptonic decays of photoproduced vector and pseudoscalar mesons off of 1H at Jefferson Lab

Abstract:

Jefferson Lab's experiment E04-005, the largest integrated luminosity real photon CLAS experiment to date, provided a large sample of leptonic data; allowing for studies of the ρ-ω interference in the dileptonic decay channel, as well as charge radius and comparative branching ratio studies of the η and η′ through the Dalitz decay channel. An experimental study of the ρ-ω provides valuable input for theoretical models and calculations in addition to establishing a comparative basis for medium modification studies of vector mesons off of heavier targets. The total statistics collected for the η dalitz exceed the world's published statistics by an order of magnitude, while the η′ Daltiz decay is observed and measured for the first time.

Año de publicación:

2012

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Fuente:

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