A Measurement of Nuclear Structure Functions in the Large $$X$$ Large $$Q^{2}$$ Kinematic Region in Neutrino Deep Inelastic Scattering
- Cincinnati U.
Data from the CCFR E770 Neutrino Deep Inelastic Scatter- ing (DIS) experiment at Fermilab contain large Bjorken x, high $Q^2$ events. A comparison of the data with a model, based on no nuclear effects at large $$x$$, shows an excess of events in the data. Addition of Fermi gas motion of the nucleons in the nucleus to the model does not explain the model's deficit. Adding higher momentum tail due to the formation of "quasi-deuterons" makes the agreement better. Certain models based on "multi- quark clusters" and "few-nucleon correlations" predict an exponentially falling behavior for $$F_2$$ as $$F_2 \sim e^{s(x -x_0)}$$ at large $$x$$. We measure a $$s$$ = 8.3 $$\pm$$ 0.8 for the best fit to our data. This corresponds to a value of $$F_2$$($$x = 1, Q^2 > 50) \approx 2$$ x $$10^{-3}$$ in neutrino DIS. These values agree with results from theoretical models and the $SLAC$ $E133$ experiment but seem to be different from the result of the BCDMS experiment
- Research Organization:
- Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
- DOE Contract Number:
- AC02-07CH11359
- OSTI ID:
- 1421709
- Report Number(s):
- FERMILAB-THESIS-1993-10; UMI-98-14474; 454576
- Country of Publication:
- United States
- Language:
- English
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