Measurements of $$R_{long}$$ and $$\mid V_{cs} \mid$$ from the CCFR Experiment
- Columbia U.
The four structure functions $$F_2$$ , $$R_{Long}$$, $$xF^{\nu}_3$$ , and $$xF^{\bar{\nu}}_3$$ are extracted from measurements of inclusive charged-current $$\nu$$-Fe interactions in the CCFR detector at the Fermilab Tevatron. The analysis produces measurements of the CKM matrix element $$\mid V_{cs} \mid$$ = 1.05 ± 0.10 $$^{+0.07}_{-0.11}$$ and measurements of $$R_{long}$$ made at 0.0 $$\ge$$ x $$\ge$$ 0.425 and $$1 \ge Q^2 \ge 100$$ $GeV^2$ . The new $$R_{long}$$ measurements probe a low-$$x$$ kinematic region ($$x$$ = 0.01) which is important for constraining the gluon distribution.
- 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:
- 1421715
- Report Number(s):
- FERMILAB-THESIS-1997-61; UMI-98-09743; R-1237; CU-403; NEVIS-297; NSF-PHY-95-12810; 454388
- Country of Publication:
- United States
- Language:
- English
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