We report the first large-acceptance measurement of the beam–spin asymmetry for deuteron photodisintegration (ȳd → pn) in the photon energy range 420 < E<sub>γ</sub> < 620 MeV. The measurement provides important new constraints on the mechanisms of photodisintegration above the Δ resonance and on the photocoupling of the recently discovered d<sup>∗</sup>(2380) hexaquark....
Annand, J. R. M.; Arends, H. J.; Beck, R.; Borisov, N.; Braghieri, A.; Briscoe, W. J.; Cherepnya, S.; Collicott, Cristina; Costanza, S.; Downie, E. J.; Sarty, Adam James, 1965-(American Physical Society, 2015-05-26)
Annand, J. R. M.; Arends, H. J.; Beck, R.; Borisov, N.; Braghieri, A.; Briscoe, W. J.; Cherepnya, S.; Collicott, Cristina; Costanza, S.; Downie, E. J.; Sarty, Adam James, 1965-(American Physical Society, 2016-05-31)