Results from CEBAF experiment E89-012: Measurements of deuteron photo-disintegration up to 4 GeV
The first measurements of differential cross sections for deuteron photo-disintegration at photon energies up to 4 GeV were performed at the Thomas Jefferson National Accelerator Facility early in 1996. Cross section results for D(gamma,p)n at proton center of mass angle of 35{sup o}, 53{sup o} and 90{sup o} will be presented. These results are in good agreement with previous measurements at low energy and extend to higher energies where data were previously unavailable. The 90{sup o} degree data show behavior consistent with the constituent counting rules up to 4 GeV and are also in fair agreement with the asymptotic meson exchange model. The 37{sup o} and 53{sup o} data do not show clear signs of counting rule behavior, although a threshold in transverse momentum for the onset of scaling cannot be excluded.
- 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:
- 802136
- Report Number(s):
- JLAB-PHY-97-18; DOE/ER/40150-2248; TRN: US0205694
- Resource Relation:
- Conference: 6th Conference On The Intersections Of Particle And Nuclear Physics (CIPANP 97), Big Sky, MT (US), 05/27/1997--06/02/1997; Other Information: AIP Conf. Proc. 412, 213 (1997); PBD: 1 May 1997
- Country of Publication:
- United States
- Language:
- English
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