Beck, D. H. (1989) Strange-quark vector currents and parity-violating electron scattering from the nucleon and from nuclei. Physical Review D, 39 (11). pp. 3248-3256. ISSN 0556-2821. http://resolver.caltech.edu/CaltechAUTHORS:BECprd89
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Measurements of the processes p(π,π), p(ν,ν)/p(ν¯,ν¯), and deep-inelastic p→(μ→,μ’) can be interpreted in a manner which requires a significant strange-quark contribution to proton matrix elements. In this paper some implications of strange-quark contributions to proton vector currents and their manifestation in parity-violating electron-scattering experiments are examined. It is found that strange-quark currents of plausible magnitude significantly affect the parity-violating elastic electron scattering from the nucleon in certain kinematic regimes. It is also shown that, while the effects in on-going parity-violating experiments on 9Be and 12C are small, significant strange-quark contributions might be expected in experiments with nuclear targets at higher momentum transfer.
|Additional Information:||©1989 The American Physical Society Received 3 January 1989 I would like to acknowledge conversations with R. Jaffe, A. Manohar, and R. McKeown. This work was supported in part by the National Science Foundation, Grant No. PHY85-05682.|
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|Deposited On:||12 Dec 2006|
|Last Modified:||26 Dec 2012 09:22|
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