Precision Measurement of the Weak Mixing Angle in Møller Scattering

P. L. Anthony,R. G. Arnold,C. Arroyo,K. Bega,J. Biesiada,P. E. Bosted,G. Bower,J. Cahoon,R. Carr,G. D. Cates,J.-P. Chen,E. Chudakov,M. Cooke,P. Decowski,A. Deur,W. Emam,R. Erickson,T. Fieguth,C. Field,J. Gao,M. Gary,K. Gustafsson,R. S. Hicks,R. Holmes,E. W. Hughes,T. B. Humensky,G. M. Jones,L. J. Kaufman,L. Keller,Yu. G. Kolomensky,Krishna Kumar,P. LaViolette,D. Lhuillier,R. M. Lombard-Nelsen,Z. Marshall,P. Mastromarino,R. D. McKeown,R. Michaels,J. Niedziela,M. Olson,K. D. Paschke,G. A. Peterson,R. Pitthan,D. Relyea,S. E. Rock,O. Saxton,Jaideep Singh,P. A. Souder,Z. M. Szalata,J. Turner,B. Tweedie,A. Vacheret,D. Walz,T. Weber,J. Weisend,M. Woods,I. Younus; P. L. Anthony; R. G. Arnold; C. Arroyo; K. Bega; J. Biesiada; P. E. Bosted; G. Bower; J. Cahoon; R. Carr; G. D. Cates; J.-P. Chen; E. Chudakov; M. Cooke; P. Decowski; A. Deur; W. Emam; R. Erickson; T. Fieguth; C. Field; J. Gao; M. Gary; K. Gustafsson; R. S. Hicks; R. Holmes; E. W. Hughes; T. B. Humensky; G. M. Jones; L. J. Kaufman; L. Keller; Yu. G. Kolomensky; Krishna Kumar; P. LaViolette; D. Lhuillier; R. M. Lombard-Nelsen; Z. Marshall; P. Mastromarino; R. D. McKeown; R. Michaels; J. Niedziela; M. Olson; K. D. Paschke; G. A. Peterson; R. Pitthan; D. Relyea; S. E. Rock; O. Saxton; Jaideep Singh; P. A. Souder; Z. M. Szalata; J. Turner; B. Tweedie; A. Vacheret; D. Walz; T. Weber; J. Weisend; M. Woods; I. Younus

Precision Measurement of the Weak Mixing Angle in Møller Scattering

Clicks: 127

ID: 272032

2005

We report on a precision measurement of the parity-violating asymmetry in fixed target electron-electron (Møller) scattering: APV=[−131±14(stat)±10(syst)]×10−9, leading to the determination of the weak mixing angle sin2θWeff=0.2397±0.0010(stat)±0.0008(syst), evaluated at Q2=0.026 GeV2. Combining this result with the measurements of sin2θWeff at the Z0 pole, the running of the weak mixing angle is observed with over 6σ significance. The measurement sets constraints on new physics effects at the TeV scale.

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Authors	P. L. Anthony,R. G. Arnold,C. Arroyo,K. Bega,J. Biesiada,P. E. Bosted,G. Bower,J. Cahoon,R. Carr,G. D. Cates,J.-P. Chen,E. Chudakov,M. Cooke,P. Decowski,A. Deur,W. Emam,R. Erickson,T. Fieguth,C. Field,J. Gao,M. Gary,K. Gustafsson,R. S. Hicks,R. Holmes,E. W. Hughes,T. B. Humensky,G. M. Jones,L. J. Kaufman,L. Keller,Yu. G. Kolomensky,Krishna Kumar,P. LaViolette,D. Lhuillier,R. M. Lombard-Nelsen,Z. Marshall,P. Mastromarino,R. D. McKeown,R. Michaels,J. Niedziela,M. Olson,K. D. Paschke,G. A. Peterson,R. Pitthan,D. Relyea,S. E. Rock,O. Saxton,Jaideep Singh,P. A. Souder,Z. M. Szalata,J. Turner,B. Tweedie,A. Vacheret,D. Walz,T. Weber,J. Weisend,M. Woods,I. Younus;P. L. Anthony;R. G. Arnold;C. Arroyo;K. Bega;J. Biesiada;P. E. Bosted;G. Bower;J. Cahoon;R. Carr;G. D. Cates;J.-P. Chen;E. Chudakov;M. Cooke;P. Decowski;A. Deur;W. Emam;R. Erickson;T. Fieguth;C. Field;J. Gao;M. Gary;K. Gustafsson;R. S. Hicks;R. Holmes;E. W. Hughes;T. B. Humensky;G. M. Jones;L. J. Kaufman;L. Keller;Yu. G. Kolomensky;Krishna Kumar;P. LaViolette;D. Lhuillier;R. M. Lombard-Nelsen;Z. Marshall;P. Mastromarino;R. D. McKeown;R. Michaels;J. Niedziela;M. Olson;K. D. Paschke;G. A. Peterson;R. Pitthan;D. Relyea;S. E. Rock;O. Saxton;Jaideep Singh;P. A. Souder;Z. M. Szalata;J. Turner;B. Tweedie;A. Vacheret;D. Walz;T. Weber;J. Weisend;M. Woods;I. Younus;
Journal	physical review letters
Year	2005
DOI	10.1103/physrevlett.95.081601
URL	https://sciprofiles.com/publication/view/c444ca7fdc3f5f2184df3dc97cf1f21e https://doi.org/10.1103/physrevlett.95.081601
Keywords	precision scattering stat weak mixing angle møller 2θweff

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