Data di Pubblicazione:
1992
Abstract:
The weak mixing angle has been measured from the charge asymmetry of hadronic events with two different approaches using the DELPHI detector at LEP. Both methods are based on a momentum-weighted charge sum to determine the jet charge in both event hemispheres. In a data sample of 247 300 multihadronic Z0 decays a charge asymmetry of [Q(F)] - [Q(B)] = -0.0076 +/- 0.0012(stat.) +/- O.0005(exp. syst.) +/- 0.0014(frag.) and a raw forward-backward asymmetry of A(FB)raw = 0.0109 +/- 0.0020(stat.) +/- 0.0010(exp.syst.) +/- 0.0017(frag.) have been measured. This result corresponds to a value of sin2-theta(eff) = 0.2345 +/- 0.0030(exp.) +/- 0.0027(frag.) +/- sin2-theta(MSBAR) = 0.2341 +/- 0.0030(exp.) +/- 0.0027(frag.) and to sin2-theta(w) = 1 -m(w)2/m(z)2 = 0.2299 +/- 0.0030(exp.) +/- 0.0027(frag.) +/- 0.0028 (theor.). The experimental error is the quadratic sum of the statistical and the experimental systematic error and the theoretical error originates from a value of m(t) = 130 +/- 40 GeV/c2 and a range of m(H) from 45 GeV/c2 to 100 GeV/c2.
Tipologia CRIS:
03A-Articolo su Rivista
Elenco autori:
P. ABREU;W. ADAM;F. ADAMI;T. ADYE;T. AKESSON;G. D. ALEKSEEV;P. ALLEN;S. ALMEHED;S. J. ALVSVAAG;U. AMALDI;E. ANASSONTZIS;P. ANTILOGUS;W. D. APEL;R. J. APSIMON;B. ASMAN;J. E. AUGUSTIN;A. AUGUSTINUS;P. BAILLON;P. BAMBADE;F. BARAO;R. BARATE;G. BARBIELLINI;D. Y. BARDIN;A. BARONCELLI;O. BARRING;W. BARTL;M. J. BATES;M. BATTAGLIA;M. BAUBILLIER;K. H. BECKS;C. J. BEESTON;M. BEGALLI;P. BEILLIERE;Y. BELOKOPYTOV;P. BELTRAN;D. BENEDIC;J. M. BENLLOCH;M. BERGGREN;D. BERTRAND;F. BIANCHI;M. S. BILENKY;P. BILLOIR;J. BJARNE;D. BLOCH;S. BLYTH;V. BOCCI;P. N. BOGOLUBOV;T. BOLOGNESE;M. BONAPART;M. BONESINI;W. BONIVENTO;P. S. L.;P. BORGEAUD;G. BORISOV;H. BORNER;C. BOSIO;B. BOSTJANCIC;O. BOTNER;B. BOUQUET;C. BOURDARIOS;M. BOZZO;S. BRAIBANT;P. BRANCHINI;K. D. BRAND;R. A. BRENNER;H. BRIAND;C. BRICMAN;R. C. A.;N. BRUMMER;J. M. BRUNET;L. BUGGE;T. BURAN;H. BURMEISTER;J. A. M.;M. CACCIA;M. CALVI;A. J. C.;A. CAMPION;T. CAMPORESI;V. CANALE;F. CAO;F. CARENA;L. CARROLL;C. CASO;E. CASTELLI;M. V. C.;A. CATTAI;F. R. CAVALLO;L. CERRITO;A. CHAN;P. CHARPENTIER;L. CHAUSSARD;J. CHAUVEAU;P. CHECCHIA;G. A. CHELKOV;L. CHEVALIER;P. CHLIAPNIKOV;V. CHOROWICZ;R. CIRIO;M. P. CLARA;P. COLLINS;J. L. CONTRERAS;R. CONTRI;G. COSME;F. COUCHOT;H. B. CRAWLEY;D. CRENNELL;G. CROSETTI;M. CROZON;J. C. MAESTRO;S. CZELLAR;S. DAGORET;E. DAHLJENSEN;B. DALMAGNE;M. DAM;G. DAMGAARD;G. DARBO;E. DAUBIE;P. D. DAUNCEY;M. DAVENPORT;P. DAVID;W. DASILVA;C. DEFOIX;D. DELIKARIS;S. DELORME;P. DELPIERRE;N. DEMARIA;A. DEANGELIS;M. DEBEER;H. DEBOECK;W. DEBOER;C. DECLERCQ;M. D. M.;N. DEGROOT;C. DELAVAISSIERE;B. DELOTTO;A. DEMIN;H. DIJKSTRA;L. DICIACCIO;F. DJAMA;J. DOLBEAU;M. DONSZELMANN;K. DOROBA;M. DRACOS;J. DREES;M. DRIS;Y. DUFOUR;W. DULINSKI;L. O. EEK;P. A. M.;T. EKELOF;G. EKSPONG;A. E. PEISERT;J. P. ENGEL;D. FASSOULIOTIS;M. FEINDT;A. FENYUK;M. F. ALONSO;A. FERRER;T. A. FILIPPAS;A. FIRESTONE;H. FOETH;E. FOKITIS;P. FOLEGATI;F. FONTANELLI;K. A. J.;B. FRANEK;P. FRENKIEL;D. C. FRIES;A. G. FRODESEN;R. FRUHWIRTH;F. FULDAQUENZER;K. FURNIVAL;H. FURSTENAU;J. FUSTER;G. GALEAZZI;D. GAMBA;C. GARCIA;J. GARCIA;C. GASPAR;U. GASPARINI;P. GAVILLET;E. N. GAZIS;J. P. GERBER;P. GIACOMELLI;R. GOKIELI;V. M. GOLOVATYUK;J. J. G.;A. GOOBAR;G. GOPAL;M. GORSKI;V. GRACCO;A. GRANT;F. FRARD;E. GRAZIANI;G. GROSDIDIER;E. GROSS;P. GROSSEWIESMANN;B. GROSSETETE;S. GUMENYUK;J. GUY;F. HAHN;M. HAHN;S. HAIDER;Z. HAJDUK;A. HAKANSSON;A. HALLGREN;K. HAMACHER;G. H. DEMONCHENAULT;F. J. HARRIS;B. W. HECK;T. HENKES;J. J. HERNANDEZ;P. HERQUET;H. HERR;I. HIETANEN;C. O. HIGGINS;E. HIGON;H. J. HILKE;S. D. HODGSON;T. HOFMOKL;R. HOLMES;S. O. HOLMGREN;D. HOLTHUIZEN;P. F. HONORE;J. E. HOOPER;M. HOULDEN;J. HRUBEC;P. O. HULTH;K. HULTQVIST;D. HUSSON;P. IOANNOU;D. ISENHOWER;P. S. IVERSEN;J. N. JACKSON;P. JALOCHA;G. JARLSKOG;P. JARRY;B. JEANMARIE;E. K. JOHANSSON;D. JOHNSON;M. JONKER;L. JONSSON;P. JUILLOT;G. KALKANIS;G. KALMUS;F. KAPUSTA;M. KARLSSON;S. KATSANEVAS;E. C. KATSOUFIS;R. KERANEN;J. KESTEMAN;B. A. KHOMENKO;N. N. KHOVANSKI;B. KING;N. J. KJAER;H. KLEIN;W. KLEMPT;A. KLOVNING;P. KLUIT;J. H. KOEHNE;B. KOENE;P. KOKKINIAS;M. KOPF;M. KORATZINOS;K. KORCYL;A. V. KORYTOV;V. KOSTIUKHIN;M. KOSTRIKOV;C. KOURKOUMELIS;P. H. KRAMER;T. KREUZBERGER;J. KROLIKOWSKI;I. KRONKVIST;J. KRSTIC;U. KRUENERMARQUIS;W. KRUPINSKI;W. KUCEWICZ;K. KURVINEN;C. LACASTA;C. LAMBROPOULOS;J. W. LAMSA;L. LANCERI;V. LAPIN;J. P. LAUGIER;R. LAUHAKANGAS;G. LEDER;F. LEDROIT;R. LEITNER;Y. LEMOIGNE;J. LEMONNE;G. LENZEN;V. LEPELTIER;A. LETESSIERSELVON;E. LIEB;D. LIKO;E. LILLETHUN;J. LINDGREN;R. LINDNER;A. LIPNIACKA;I. LIPPI;R. LLOSA;B. LOERSTAD;M. LOKAJICEK;J. G. LOKEN;A. LOPEZFERNANDEZ;M. A. L.;M. LOS;D. LOUKAS;A. LOUNIS;J. J. LOZANO;P. LUTZ;L. LYONS;G. MAEHLUM;J. MAILLARD;A. MALTEZOS;F. MANDL;
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