Hard photodisintegration of a proton pair in {sup 3}He
Hard photodisintegration of the deuteron has been extensively studied in order to understand the dynamics of the transition from hadronic to quark-gluon descriptions of the strong interaction. In this work, we discuss the extension of this program to hard photodisintegration of a pp pair in the {sup 3}He nucleus. Experimental confirmation of new features predicted here for the suggested reaction would advance our understanding of hard nuclear reactions. A main prediction, in contrast with low-energy observations, is that the pp breakup cross section is not much smaller than the one for pn break up. In some models, the energy-dependent oscillations observed for pp scattering are predicted to appear in the {gamma} {sup 3}He {yields} pp + n reaction. Such an observation would open up a completely new field in studies of color coherence phenomena in hard nuclear reactions. We also demonstrate that, in addition to the energy dependence, the measurement of the light-cone momentum distribution of the recoil neutron provides an independent test of the underlying dynamics of hard disintegration.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Energy Research (ER) (US)
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 811274
- Report Number(s):
- JLAB-THY-03-34; DOE/ER/40150-2501; nucl-th/0305068; FIU-PHY-050803; NT@UW-03-08; SLAC-PUB-9854; TRN: US0303051
- Resource Relation:
- Other Information: No journal information given for this preprint; PBD: 1 May 2003
- Country of Publication:
- United States
- Language:
- English
Similar Records
Next generation of photodisintegration measurements at Jefferson Lab
Hard photo-disintegration of proton pairs in 3He nuclei