2010
DOI: 10.1103/physrevc.82.065205
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Examination of higher-order twist contributions in parity-violating deep-inelastic electron-deuteron scattering

Abstract: We show that parity-violating deep-inelastic scattering (PVDIS) of longitudinally polarized electrons from deuterium can in principle be a relatively clean probe of higher twist quark-quark correlations beyond the parton model. As first observed by Bjorken and Wolfenstein, the dominant contribution to the electron polarization asymmetry, proportional to the axial vector electron coupling, receives corrections at twist four from the matrix element of a single four-quark operator. We reformulate the Bjorken-Wolf… Show more

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Cited by 25 publications
(39 citation statements)
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“…Indeed, the polarized electrons have been used for the last many years to study the weak interaction processes which have been, however, limited to the neutral current sector. The study of the parity violating asymmetry in the scattering of polarized electrons from the proton targets has provided important information about the vector and axial-vector neutral current coupling of the electrons to the quarks in the DIS processes [20][21][22][23][24][25][26][27] and the N − ∆ transition form factors in the inelastic processes [7][8][9][10][11][12][13][14][15] as well as the presence of strangeness in the nucleon form factors in the quasielastic processes [28][29][30][31][32]. However, no experimental attempts have been made to study the weak processes induced by the high energy electrons in the charge current sector.…”
Section: Introductionmentioning
confidence: 99%
“…Indeed, the polarized electrons have been used for the last many years to study the weak interaction processes which have been, however, limited to the neutral current sector. The study of the parity violating asymmetry in the scattering of polarized electrons from the proton targets has provided important information about the vector and axial-vector neutral current coupling of the electrons to the quarks in the DIS processes [20][21][22][23][24][25][26][27] and the N − ∆ transition form factors in the inelastic processes [7][8][9][10][11][12][13][14][15] as well as the presence of strangeness in the nucleon form factors in the quasielastic processes [28][29][30][31][32]. However, no experimental attempts have been made to study the weak processes induced by the high energy electrons in the charge current sector.…”
Section: Introductionmentioning
confidence: 99%
“…As with the weak decays, any deviations from the SM asymmetry predictions could point to SUSY (see [6] and references therein), an additional neutral gauge boson (Z ) [66][67][68][69], or some other BSM scenario and, if the corresponding particles are discovered at the LHC, help determine the underlying couplings to SM particles. At the same time, PV electron scattering will continue to provide a new window on poorly-understood aspects of nucleon structure, such as higher twist [70,71] and charge symmetry in parton distribution functions [72].…”
Section: Discussionmentioning
confidence: 99%
“…The SoLID experiment measures the left-right asymmetry obtained from deep inelastic scattering of longitudinally polarized electrons on a deuterium target [31][32][33]. The SoLID collaboration extimates that they will be able to measure the combination of couplings…”
Section: Other Future Parity Violating Experimentsmentioning
confidence: 99%
“…We consider both the Q W ( 133 55 Cs) result and observables from a number of future APV experiments which are expected to perform measurements of weak charges along the isotope chains of Ba [24], Fr [25,26], Ra [27] and Yb [28]. For completeness, we also consider the implications of other experiments measuring parity violation; the Qweak measurement of the proton weak charge at Jefferson Lab [29], the P2 experiment at Mainz [30], and the SoLID deep inelastic measurement at Jefferson Lab [31][32][33]. The presence of a…”
Section: Introductionmentioning
confidence: 99%