학술논문
High momentum transfer RT,Lresponse functions for 3,4He
Document Type
Article
Author
Meziani, Z.-E.; Chen, J.P.; Beck, D.; Boyd, G.; Chinitz, L.M.; Day, D.B.; Dennis, L.C.; Dodge, G.E.; Fillipone, B.W.; Giovanetti, K.L.; Jourdan, J.; Kemper, K.W.; Koh, T.; Lorenzon, W.; McCarthy, J.S.; McKeown, R.D.; Milner, R.G.; Minehart, R.C.; Morgenstern, J.; Mougey, J.; Potterveld, D.H.; Rondon-Aramayo, O.A.; Sealock, R.M.; Sick, I.; Smith, L.C.; Thornton, S.T.; Walker, R.C.; Woodward, C.
Source
Nuclear Physics A; March 1993, Vol. 553 Issue: 1 p701-704, 4p
Subject
Language
ISSN
03759474
Abstract
The tantalizing problem of the “quenching” of the Coulomb sum rule observed in medium weight nuclei is investigated in light nuclei at high momentum transfer. Inclusive electron scattering cross sections for 3,4He have been measured in the quasielastic region at electron energies between 0.9 GeV and 4.3 GeV, and scattering angles of 15° and 85°. Longitudinal (RL) and transverse (RT) response functions have been extracted using a Rosenbluth separation at constant ‖q‖of 1.050 (GeV/c). The ratio of the longitudinal to the transverse reduced response functions in the negative yregion reaches unity. The experimental Coulomb sum rule although with large uncertainty and conversly to the case of medium weight nuclei, saturates at high momentum to the He nucleus total charge namely Z=2.