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Strange-quark vector currents and parity-violating electron scattering from the nucleon and from nuclei

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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Abstract

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.


Item Type:Article
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.
Record Number:CaltechAUTHORS:BECprd89
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:BECprd89
Alternative URL:http://dx.doi.org/10.1103/PhysRevD.39.3248
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:6533
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:12 Dec 2006
Last Modified:26 Dec 2012 09:22

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