Measuring sin{sup 2}{theta}{sub W} with parity violation in deep inelastic scattering with baseline spectrometers at JLab 12 Gev.
The couplings of leptons to quarks are fundamental parameters of the electroweak interaction. Within the framework of the Standard Model, these couplings can be related to sin{sup 2} {theta}{sub W}. Parity violation (PV) in deep inelastic scattering (DIS) is proportional to these couplings and hence sensitive to sin{sup 2} {theta}{sub W}. PV-DIS, first measured at SLAC in the mid-1970's, was used to establish the Standard Model. The high quality and intensity of the upgraded 11 GeV CEBAF beam at Jefferson Laboratory will make it an ideal tool for PV studies. In DIS the asymmetry from parity violation is large (A{sub PV} {approx} 10{sup -4} Q{sup 2}), allowing precise measurements with modest beam time. This talk will explore a PV-DIS measurement which can be made using the baseline spectrometers that will exist as part of the 12 GeV JLab upgrade.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 971130
- Report Number(s):
- ANL/PHY/CP-119366; TRN: US1001034
- Resource Relation:
- Conference: 3rd International Workshop from Parity Violation to Hadronic Structure and More...(Part III) (PAVI 2006); May 16, 2006 - May 20, 2006; Milos, Greece
- Country of Publication:
- United States
- Language:
- ENGLISH
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