baryons 2013 - Nuclear Physics - University of Glasgow

EPECUR: p p and p K 0 • “Formation” – type experiment, resonances in s-channel.• Extremely high invariant mass resolution ~0.6 MeV – feasible to define the width.• High statistical precision -- can define the quantum numbers.• Magnetless spectrometer with drift chambers and liquid hydrogen target.• Very small amount of matter on the particle paths -- optimized for low energy.Resonance parameters within safe reach by the experiment:ElasticscatteringKproductionWidth (2-20) MeV (2-20) MeVElastic width, Г el >0.1 MeV >0.02 MeVElasticity, X >0.05 >0.01This provides a good coverage of both theoretical and experimental expectations.Not narrow resonances only …• Precise cross section measurements: ± p ± p: d/d – 0.5% statistical precision and 1 MeV momentum step p K 0 : REAC – 1% statistical precision and the same step• -polarization in the reaction p K 0 - an order of magnitude betterprecision then the best data available now - NIMROD (78)• Very important new generation data for PWABARYONS 2013 Dmitry Svirida, ITEP, Moscow 3