Author: "Kumar, Krishna S." / Topic: electrons - Searchworks@Jio Institute Digital Library Search Results

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Start Over Author "Kumar, Krishna S." Topic electrons

Author: Kumar, Krishna S., Smith, W. H., and Dasu, S. R.
Subjects: *ELECTRONS, *COLLISIONS (Nuclear physics), *SCATTERING (Physics), *DISTRIBUTION (Probability theory), *PROBABILITY theory, *PARTICLES (Nuclear physics)
Abstract: We have carried out a precision of the parity-violating asymmetry APV in the scattering of longitudinally polarized electrons off electrons in a liquid hydrogen target. The measurement was performed with the 50 GeV beam line at SLAC. The final result with the full data set collected in three production runs is APV = - 131 ± 14 (stat) ± 10 (syst) parts per billion. The result leads to new limits on possible contact interactions at the TeV scale. © 2005 American Institute of Physics [ABSTRACT FROM AUTHOR]
Published: 2005
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Author: KUMAR, KRISHNA S.
Subjects: *SCATTERING (Physics), *ELECTRONS, *ELECTROWEAK interactions, *PARTICLES (Nuclear physics), *CATHODE rays
Abstract: We discuss the current status and prospects of an experimental program of parity-violating asymmetry measurements in the scattering of longitudinally polarized electrons off unpolarized fixed targets. In particular, we focus on those measurements where judicious choices of target species and kinematics allows the theoretical predictions to be made purely in terms of fundamental electroweak couplings with little theoretical uncertainty. If such asymmetries are measured with sufficient precision, they are sensitive to new physics at the TeV scale. After reviewing recent results, two new experimental initiatives called MOLLER and SoLID being designed for the Jefferson Laboratory 12 GeV upgrade are discussed. [ABSTRACT FROM AUTHOR]
Published: 2010
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