Structure of A NN ( 90 ° )
1981; American Physical Society; Volume: 23; Issue: 9 Linguagem: Inglês
10.1103/physrevd.23.2075
ISSN1538-4500
Autores Tópico(s)Quantum Chromodynamics and Particle Interactions
ResumoIt is suggested that, just as the differential cross section at 90\ifmmode^\circ\else\textdegree\fi{} for proton-proton elastic scattering oscillates, so does the spin-correlation parameter ${A}_{\mathrm{NN}}$ at 90\ifmmode^\circ\else\textdegree\fi{}. The oscillations appear to be around the quark-model value of $\frac{1}{3}$, with a periodicity corresponding to an interaction radius of about 0.8 fm.
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