de Jager, CW
Permanent link to this recordhttp://hdl.handle.net/20.500.12613/6059
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AbstractWe present a study of high energy photodisintegration of proton-pairs through the γ + 3He → p + p + n channel. Photon energies, Eγ, from 0.8 to 4.7 GeV were used in kinematics corresponding to a proton pair with high relative momentum and a neutron nearly at rest. The s-11 scaling of the cross section, as predicted by the constituent counting rule for two nucleon photodisintegration, was observed for the first time. The onset of the scaling is at a higher energy and the cross section is significantly lower than for deuteron (pn pair) photodisintegration. For Eγ below the scaling region, the scaled cross section was found to present a strong energy-dependent structure not observed in deuteron photodisintegration. © 2010 Elsevier B.V.
Citation to related workElsevier BV
Has partPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
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