Matches in SemOpenAlex for { <https://semopenalex.org/work/W2039883048> ?p ?o ?g. }
- W2039883048 endingPage "252" @default.
- W2039883048 startingPage "211" @default.
- W2039883048 abstract "A detailed analysis of existing neutral-current data has been performed in order (a) to determine as fully as possible the structure of the hadronic and leptonic neutral currents without recourse to a specific weak-interaction model; (b) to search for the effects of small deviations from the Weinberg-Salam (WS-GIM) model; and (c) to determine the value of ${{sin}^{2}ensuremath{theta}}_{w}$ as accurately as possible. The authors attempt to incorporate the best possible theoretical expressions in the treatment of each of the reactions. For deep-inelastic scattering, for example, the effects of quantum chromodynamics, including the contributions of the $s$ and $c$ quarks, have been included. The sensitivity of the results both to systematic uncertainties in the data and to theoretical uncertainties in the treatment of deep-inelastic scattering, semi-inclusive pion production, $ensuremath{nu}$ elastic scattering from protons, and the asymmetry in polarized $mathrm{eD}$ scattering have been considered; the systematic errors are generally found to be smaller than the statistical uncertainties. In the model-independent analyses the authors find that the hadronic neutral-current parameters are uniquely determined to lie within a small domain consistent with the WS-GIM model. The leptonic couplings are determined to within a twofold ambiguity; one solution, the axial-vector-dominant, is consistent with the WS-GIM model. If factorization is assumed then the axial-dominant solution is uniquely determined and null atomic parity violation experiments are inconsistent with other neutral-current experiments. Within generalized SU(2)ifmmodetimeselsetexttimesfi{}U(1) models we find the following limits on mixing between right-handed singlets and doublets: ${sin}^{2}{ensuremath{alpha}}_{u}ensuremath{le}0.103$, ${sin}^{2}{ensuremath{alpha}}_{d}ensuremath{le}0.348$, and ${sin}^{2}{ensuremath{alpha}}_{e}ensuremath{le}0.064$. Assuming these mixing angles to be zero, a fit to the most accurate data (deep-inelastic and the polarized $mathrm{eD}$ asymmetry) yields $ensuremath{rho}=0.992ifmmodepmelsetextpmfi{}0.017(ifmmodepmelsetextpmfi{}0.011)$ and ${{sin}^{2}ensuremath{theta}}_{w}=0.224ifmmodepmelsetextpmfi{}0.015(ifmmodepmelsetextpmfi{}0.012)$, where $ensuremath{rho}=frac{{M}_{W}^{2}}{{M}_{Z}^{2}}{{cos}^{2}ensuremath{theta}}_{w}$ and the numbers in parentheses are the theoretical uncertainties. The value of $ensuremath{rho}$ is remarkably close to 1.0 and strongly suggests that the Higgs mesons occur only as doublets and singlets. If one makes this assumption, then the limit on $ensuremath{rho}$ implies ${m}_{L}ensuremath{le}500$ GeV, where ${m}_{L}$ is the mass of any heavy lepton with a massless partner. In addition, for $ensuremath{rho}=1.0$, the authors determine ${{sin}^{2}ensuremath{theta}}_{w}=0.229ifmmodepmelsetextpmfi{}0.009(ifmmodepmelsetextpmfi{}0.005)$. Fits which also include the semi-inclusive, elastic, and leptonic data yield very similar results. A two-parameter fit gives $ensuremath{rho}=1.002ifmmodepmelsetextpmfi{}0.015(ifmmodepmelsetextpmfi{}0.011)$ and ${{sin}^{2}ensuremath{theta}}_{w}=0.234ifmmodepmelsetextpmfi{}0.013(ifmmodepmelsetextpmfi{}0.009)$, while a one-parameter fit to ${{sin}^{2}ensuremath{theta}}_{w}$ gives ${{sin}^{2}ensuremath{theta}}_{w}=0.233ifmmodepmelsetextpmfi{}0.009(ifmmodepmelsetextpmfi{}0.005)$. Finally, the authors have found no evidence for a violation of factorization or for the existence of additional $Z$ bosons. Fits to two explicit two-boson models yield the lower limits $frac{{M}_{{Z}_{2}}}{{M}_{{Z}_{1}}}>1.61 mathrm{and} 3.44$ for the mass of the second $Z$ boson. The desirability of a complete analysis of radiative and higher-order weak corrections, which have not been included in the authors' theoretical uncertainties, is emphasized." @default.
- W2039883048 created "2016-06-24" @default.
- W2039883048 creator A5010000294 @default.
- W2039883048 creator A5037555216 @default.
- W2039883048 creator A5042568337 @default.
- W2039883048 creator A5087686834 @default.
- W2039883048 date "1981-04-01" @default.
- W2039883048 modified "2023-09-23" @default.
- W2039883048 title "A theoretical and experimental review of the weak neutral current: a determination of its structure and limits on deviations from the minimal<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mi mathvariant=normal>SU</mml:mi><mml:mrow><mml:msub><mml:mrow><mml:mn /><mml:mo>(</mml:mo><mml:mn>2</mml:mn><mml:mo>)</mml:mo><mml:mn /></mml:mrow><mml:mrow><mml:mi>L</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mo>×</mml:mo><mml:mi mathvariant=normal>U</mml:mi><mml:mn /><…" @default.
- W2039883048 cites W145748593 @default.
- W2039883048 cites W1486766728 @default.
- W2039883048 cites W1491319806 @default.
- W2039883048 cites W1503936510 @default.
- W2039883048 cites W1605193690 @default.
- W2039883048 cites W1963721585 @default.
- W2039883048 cites W1964912313 @default.
- W2039883048 cites W1964930709 @default.
- W2039883048 cites W1965187398 @default.
- W2039883048 cites W1965441862 @default.
- W2039883048 cites W1967590022 @default.
- W2039883048 cites W1968155160 @default.
- W2039883048 cites W1968179795 @default.
- W2039883048 cites W1968511342 @default.
- W2039883048 cites W1968609149 @default.
- W2039883048 cites W1969353886 @default.
- W2039883048 cites W1969521642 @default.
- W2039883048 cites W1969749413 @default.
- W2039883048 cites W1970041366 @default.
- W2039883048 cites W1970814971 @default.
- W2039883048 cites W1971547821 @default.
- W2039883048 cites W1972500339 @default.
- W2039883048 cites W1977078173 @default.
- W2039883048 cites W1977399897 @default.
- W2039883048 cites W1977736301 @default.
- W2039883048 cites W1978013428 @default.
- W2039883048 cites W1978222347 @default.
- W2039883048 cites W1979320459 @default.
- W2039883048 cites W1979697273 @default.
- W2039883048 cites W1981263741 @default.
- W2039883048 cites W1982614276 @default.
- W2039883048 cites W1983386306 @default.
- W2039883048 cites W1984076862 @default.
- W2039883048 cites W1984213469 @default.
- W2039883048 cites W1984804428 @default.
- W2039883048 cites W1984997655 @default.
- W2039883048 cites W1985714031 @default.
- W2039883048 cites W1989508019 @default.
- W2039883048 cites W1991639009 @default.
- W2039883048 cites W1991655935 @default.
- W2039883048 cites W1991744465 @default.
- W2039883048 cites W1992152154 @default.
- W2039883048 cites W1993299993 @default.
- W2039883048 cites W1993475853 @default.
- W2039883048 cites W1993920581 @default.
- W2039883048 cites W1994712736 @default.
- W2039883048 cites W1995278042 @default.
- W2039883048 cites W1995984146 @default.
- W2039883048 cites W1996863684 @default.
- W2039883048 cites W1997701672 @default.
- W2039883048 cites W1998795334 @default.
- W2039883048 cites W1999443366 @default.
- W2039883048 cites W2001825268 @default.
- W2039883048 cites W2002794843 @default.
- W2039883048 cites W2003145806 @default.
- W2039883048 cites W2003552036 @default.
- W2039883048 cites W2004299313 @default.
- W2039883048 cites W2006249088 @default.
- W2039883048 cites W2006370394 @default.
- W2039883048 cites W2006643198 @default.
- W2039883048 cites W2007108431 @default.
- W2039883048 cites W2007224615 @default.
- W2039883048 cites W2008163166 @default.
- W2039883048 cites W2008534530 @default.
- W2039883048 cites W2011930065 @default.
- W2039883048 cites W2012075784 @default.
- W2039883048 cites W2012555773 @default.
- W2039883048 cites W2012842469 @default.
- W2039883048 cites W2013759835 @default.
- W2039883048 cites W2013829843 @default.
- W2039883048 cites W2016027465 @default.
- W2039883048 cites W2017031639 @default.
- W2039883048 cites W2017130992 @default.
- W2039883048 cites W2017917829 @default.
- W2039883048 cites W2017994493 @default.
- W2039883048 cites W2018383113 @default.
- W2039883048 cites W2019525386 @default.
- W2039883048 cites W2019784208 @default.
- W2039883048 cites W2020070719 @default.
- W2039883048 cites W2021080441 @default.
- W2039883048 cites W2021258318 @default.
- W2039883048 cites W2021290050 @default.
- W2039883048 cites W2021782230 @default.
- W2039883048 cites W2022054465 @default.
- W2039883048 cites W2023206127 @default.
- W2039883048 cites W2023823453 @default.
- W2039883048 cites W2024109277 @default.
- W2039883048 cites W2024886263 @default.
- W2039883048 cites W2025060158 @default.