Wave functions of (I,JP) = (12,3?) baryons 2

Using a Poincare-covariant quark + diquark Faddeev equation, we provide structural information on the four lightest (I, JP) = (1 2 , 3 -/+) baryon multiplets. These systems may contain five distinct types of diquarks; 2 but in order to obtain reliable results, it is sufficient to retain only isoscalar-scalar and isovector-axialvector correlations, with the latter being especially important. Viewed with low resolution, the Faddeev equation description of these states bears some resemblance to the associated quark model pictures; namely, they form a set of states related via orbital angular momentum excitation: the negative parity states are primarily P-wave in character, whereas the positive parity states are D wave. However, a closer look reveals far greater structural complexity than is typical of quark model descriptions, with P, D, S, F waves and interferences between them all playing a large role in forming observables. Large momentum transfer resonance electroexcitation measurements can be used to test these predictions and may thereby provide insights into the nature of emergent hadron mass.