We are reporting on a new determination of sin2ϑw from the ratio of vμe to ve scattering cross sections. A new detector designed for this purpose was exposed tothe Wide Band Neutrino Beamof the 450 GeV (CERN SPS. An analysis of data taken in 1987 and 1988 is presented based on 762 vμe and 1017 ve events. From the ratio of σ(vμe) to σ(vμe) we determined sin2ϑw=0.233+/-0.012 (stat) +/- 0.008 (syst) without radiative correction. With radiative correction for mt=mH=100 GeV we find sin2ϑw=0.232+/-0.012(stat)+/-0.008(syst).

A NEW DETERMINATION OF THE ELECTROWEAK MIXING ANGLE FROM MUON-NEUTRINO ELECTRON-SCATTERING / D., Geiregat; P., Vilain; G., Wilquet; F., Bergsma; U., Binder; H., Burkard; Y., Eisenberg; W., Flegel; H., Grote; T., Mouthuy; H., Øveras; J., Panman; R., Santacesaria; K., Winter; G., Zacek; Zacek, ; R., Beyer; V., Blobel; F. W., Büsser; C., Foos; L., Gerland; T., Layda; F., Niebergall; G., Raëdel; P., Stahëlin; A., Tadsen; T., Voss; T., Delbar; D., Favart; G., Gregoire; E., Knoops; P., Gorbunov; E., Grigoriev; V., Khovansky; A., Maslennikov; A., Rosanov; W., Lippich; A., Nathaniel; A., Staude; M., Caria; B., Eckart; A., Ereditato; E., Gorini; F., Grancagnolo; R., Iasevoli; V., Palladino; P., Strolin; Capone, Antonio; D., DE PEDIS; E., DI CAPUA; Dore, Ubaldo; Loverre, Pier Ferruccio; A., RAMBALDI FRENKEL; G., Piredda; D., Zanello. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - STAMPA. - B232(1989), pp. 539-548. [10.1016/0370-2693(89)90457-7]

A NEW DETERMINATION OF THE ELECTROWEAK MIXING ANGLE FROM MUON-NEUTRINO ELECTRON-SCATTERING

CAPONE, Antonio;DORE, Ubaldo;LOVERRE, Pier Ferruccio;
1989

Abstract

We are reporting on a new determination of sin2ϑw from the ratio of vμe to ve scattering cross sections. A new detector designed for this purpose was exposed tothe Wide Band Neutrino Beamof the 450 GeV (CERN SPS. An analysis of data taken in 1987 and 1988 is presented based on 762 vμe and 1017 ve events. From the ratio of σ(vμe) to σ(vμe) we determined sin2ϑw=0.233+/-0.012 (stat) +/- 0.008 (syst) without radiative correction. With radiative correction for mt=mH=100 GeV we find sin2ϑw=0.232+/-0.012(stat)+/-0.008(syst).
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11573/246259
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