Diffractive dissociation of alpha particles as a test of isophobic short-range correlations inside nuclei

• DOI: 10.1016/j.physletb.2020.135423
• Publication Date: 2020-04-14T20:29:52Z
• Authors: Jennifer Rittenho...; Stanley J. Brodsky; Guy F. de Téramond; Iván Schmidt
• Keywords: EMC effect; Nuclear force; Nuclear Structure

The CLAS collaboration at Jefferson Laboratory has compared nuclear parton distributions for a range of targets and found that the EMC effect measured in deep inelastic lepton-nucleus scattering strongly "isophobic" nature. This surprising observation suggests short-range correlations between neighboring $n$ $p$ nucleons wavefunctions are much stronger to $p-p$ or $n-n$ correlations. In this paper we propose definitive experimental test nucleon-nucleon explanation isophobic nature effect: diffractive dissociation on target $A$ high energy $\rm ^4He$ nuclei pairs with relative transverse momentum, $\alpha + A \to n p A' X $. comparison $n-p$ events directly tests postulated breaking isospin symmetry. experiment also alternative QCD-level explanations effect. particular it will proposal hidden-color degrees freedom based isospin-zero $[ud]$ diquarks.