Phys. Rev. C 93, 045201 (2016) - Sensitivity of the COSY dibaryon candidate to $np$ elastic scattering measurements

Sensitivity of the COSY dibaryon candidate to $n p$ elastic scattering measurements

R. L. Workman, W. J. Briscoe, and I. I. Strakovsky

Phys. Rev. C 93, 045201 – Published 1 April 2016

Abstract

The case for a dibaryon resonance, appearing in $n p$ scattering, has support from a WASA-at-COSY measurement of the polarization quantity $A_{y}$ over a center-of-mass energy region suggested by structures seen earlier in two-pion production experiments. Here we compare fits with and without an associated pole in order to clarify the impact of these COSY data. We then consider what further $n p$ scattering measurements would most clearly distinguish between the pole and non-pole fit results.

Received 24 January 2016

DOI:https://doi.org/10.1103/PhysRevC.93.045201

©2016 American Physical Society

Physics Subject Headings (PhySH)

Particle production

Particle data analysis

Nuclear PhysicsParticles & Fields

Authors & Affiliations

R. L. Workman, W. J. Briscoe, and I. I. Strakovsky

Institute for Nuclear Studies, Department of Physics, The George Washington University, Washington, DC 20052, USA

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Issue

Vol. 93, Iss. 4 — April 2016

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