For τ leptons produced in e+e− → τ+τ− interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the transverse (within the production plane) and normal (to the production plane) polarization components. A measurement of the transverse-transverse and transverse-normal τ spin correlations in the decay Z → τ+τ−, CTT and CTN, is presented based on the aplanarity angle of the decay products of both τ leptons. Using 80 pb−1 of data collected by ALEPH on the peak of the Z resonance, the results are CTT = 1.06±0.13 (stat) ±0.05(syst), and CTN = 0.08±0.13(stat)±0.04(syst). These values are in agreement with the Standard Model predictions, CTT = 0.99 and CTN = −0.01.

Measurement of the transverse spin correlations in the decay Z → τ+τ− / R Barate;D Buskulic;D Decamp;P Ghez;C Goy;J.-P Lees;A Lucotte;M.-N Minard;J.-Y Nief;B Pietrzyk;M.P Casado;M Chmeissani;P Comas;J.M Crespo;M Delfino;E Fernandez;M Fernandez-Bosman;Ll Garrido;A Juste;M Martinez;R Miquel;Ll.M Mir;S Orteu;C Padilla;I.C Park;A Pascual;J.A Perlas;I Riu;F Sanchez;F Teubert;A Colaleo;D Creanza;M de Palma;G Gelao;G Iaselli;G Maggi;M Maggi;N Marinelli;S Nuzzo;A Ranieri;G Raso;F Ruggieri;G Selvaggi;L Silvestris;P Tempesta;A Tricomi;G Zito;X Huang;J Lin;Q Ouyang;T Wang;Y Xie;R Xu;S Xue;J Zhang;L Zhang;W Zhao;D Abbaneo;R Alemany;U Becker;A.O Bazarko;P Bright-Thomas;M Cattaneo;F Cerutti;G Dissertori;H Drevermann;R.W Forty;M Frank;R Hagelberg;J.B Hansen;J Harvey;P Janot;B Jost;E Kneringer;J Knobloch;I Lehraus;G Lutters;P Mato;A Minten;L Moneta;A Pacheco;J.-F Pusztaszeri;F Ranjard;G Rizzo;L Rolandi;D Rousseau;D Schlatter;M Schmitt;O Schneider;W Tejessy;I.R Tomalin;H Wachsmuth;A Wagner;Z Ajaltouni;A Barrès;C Boyer;A Falvard;C Ferdi;P Gay;C Guicheney;P Henrard;J Jousset;B Michel;S Monteil;J-C Montret;D Pallin;P Perret;F Podlyski;J Proriol;P Rosnet;J.-M Rossignol;T Fearnley;J.D Hansen;J.R Hansen;P.H Hansen;B.S Nilsson;B Rensch;A Wäänänen;G Daskalakis;A Kyriakis;C Markou;E Simopoulou;I Siotis;A Vayaki;A Blondel;G Bonneaud;J.C Brient;P Bourdon;A Rougé;M Rumpf;A Valassi;M Verderi;H Videau;D.J Candlin;M.I Parsons;E Focardi;G Parrini;K Zachariadou;M Corden;C Georgiopoulos;D.E Jaffe;A Antonelli;G Bencivenni;G Bologna;F Bossi;P Campana;G Capon;D Casper;V Chiarella;G Felici;P Laurelli;G Mannocchi;F Murtas;G.P Murtas;L Passalacqua;M Pepe-Altarelli;L Curtis;S.J Dorris;A.W Halley;I.G Knowles;J.G Lynch;V O'Shea;C Raine;J.M Scarr;K Smith;P Teixeira-Dias;A.S Thompson;E Thomson;F Thomson;R.M Turnbull;C Geweniger;G Graefe;P Hanke;G Hansper;V Hepp;E.E Kluge;A Putzer;M Schmidt;J Sommer;K Tittel;S Werner;M Wunsch;R Beuselinck;D.M Binnie;W Cameron;P.J Dornan;M Girone;S Goodsir;E.B Martin;A Moutoussi;J Nash;J.K Sedgbeer;P Spagnolo;A.M Stacey;M.D Williams;V.M Ghete;P Girtler;D Kuhn;G Rudolph;A.P Betteridge;C.K Bowdery;P Colrain;G Crawford;A.J Finch;F Foster;G Hughes;R.W Jones;T Sloan;M.I Williams;A Galla;I Giehl;A.M Greene;C Hoffmann;K Jakobs;K Kleinknecht;G Quast;B Renk;E Rohne;H.-G Sander;P van Gemmeren;C Zeitnitz;J.J Aubert;C Benchouk;A Bonissent;G Bujosa;D Calvet;J Carr;P Coyle;C Diaconu;F Etienne;N Konstantinidis;O Leroy;F Motsch;P Payre;M Talby;A Sadouki;M Thulasidas;K Trabelsi;M Aleppo;F Ragusa;R Berlich;W Blum;V Büscher;H Dietl;G Ganis;C Gotzhein;H Kroba;G Lütjens;G Lutz;W Männer;H.-G Moser;R Richter;A Rosado-Schlosser;S Schael;R Settles;H Seywerd;R.St Denis;H Stenzel;W Wiedenmann;G Wolf;J Boucrot;O Callot;S Chen;Y Choi;A Cordier;M Davier;L Duflot;J.-F Grivaz;Ph Heusse;A Höcker;A Jacholkowska;M Jacquet;D.W Kim;F Le Diberder;J Lefrançois;A.-M Lutz;I Nikolic;M.-H Schune;S Simion;E Tournefier;J.-J Veillet;I Videau;D Zerwas;P Azzurri;G Bagliesi;G Batignani;S Bettarini;C Bozzi;G Calderini;M Carpinelli;M.A Ciocci;V Ciulli;R Dell'Orso;R Fantechi;I Ferrante;L Foà;F Forti;A Giassi;M.A Giorgi;A Gregorio;F Ligabue;A Lusiani;P.S Marrocchesi;A Messineo;F Palla;G Sanguinetti;A Sciabà;J Steinberger;R Tenchini;G Tonelli;C Vannini;A Venturi;P.G Verdini;G.A Blair;L.M Bryant;J.T Chambers;Y Gao;M.G Green;T Medcalf;P Perrodo;J.A Strong;J.H von Wimmersperg-Toeller;D.R Botterill;R.W Clifft;T.R Edgecock;S Haywood;P Maley;P.R Norton;J.C Thompson;A.E Wright;B Bloch-Devaux;P Colas;S Emery;W Kozanecki;E Lançon;M.C Lemaire;E Locci;P Perez;J Rander;J.-F Renardy;A Roussarie;J.-P Schuller;J Schwindling;A Trabelsi;B Vallage;S.N Black;J.H Dann;R.P Johnson;H.Y Kim;A.M Litke;M.A McNeil;G Taylor;C.N Booth;R Boswell;C.A.J Brew;S Cartwright;F Combley;M.S Kelly;M Lehto;W.M Newton;J Reeve;L.F Thompson;A Böhrer;S Brandt;G Cowan;C Grupen;P Saraiva;L Smolik;F Stephan;M Apollonio;L Bosisio;R Della Marina;G Giannini;B Gobbo;G Musolino;J Rothberg;S Wasserbaech;S.R Armstrong;E Charles;P Elmer;D.P.S Ferguson;S González;T.C Greening;O.J Hayes;H Hu;S Jin;P.A McNamara;J.M Nachtman;J Nielsen;W Orejudos;Y.B Pan;Y Saadi;I.J Scott;J Walsh;Sau Lan Wu;X Wu;J.M Yamartino;G Zobernig. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - ELETTRONICO. - 405:(1997), pp. 191-201. [10.1016/S0370-2693(97)00664-3]

Measurement of the transverse spin correlations in the decay Z → τ+τ−

FOCARDI, ETTORE;CIULLI, VITALIANO;
1997

Abstract

For τ leptons produced in e+e− → τ+τ− interactions there are, in addition to the longitudinal spin correlations, two independent transverse spin correlations associated with the transverse (within the production plane) and normal (to the production plane) polarization components. A measurement of the transverse-transverse and transverse-normal τ spin correlations in the decay Z → τ+τ−, CTT and CTN, is presented based on the aplanarity angle of the decay products of both τ leptons. Using 80 pb−1 of data collected by ALEPH on the peak of the Z resonance, the results are CTT = 1.06±0.13 (stat) ±0.05(syst), and CTN = 0.08±0.13(stat)±0.04(syst). These values are in agreement with the Standard Model predictions, CTT = 0.99 and CTN = −0.01.
1997
405
191
201
R Barate;D Buskulic;D Decamp;P Ghez;C Goy;J.-P Lees;A Lucotte;M.-N Minard;J.-Y Nief;B Pietrzyk;M.P Casado;M Chmeissani;P Comas;J.M Crespo;M Delfino;E Fernandez;M Fernandez-Bosman;Ll Garrido;A Juste;M Martinez;R Miquel;Ll.M Mir;S Orteu;C Padilla;I.C Park;A Pascual;J.A Perlas;I Riu;F Sanchez;F Teubert;A Colaleo;D Creanza;M de Palma;G Gelao;G Iaselli;G Maggi;M Maggi;N Marinelli;S Nuzzo;A Ranieri;G Raso;F Ruggieri;G Selvaggi;L Silvestris;P Tempesta;A Tricomi;G Zito;X Huang;J Lin;Q Ouyang;T Wang;Y Xie;R Xu;S Xue;J Zhang;L Zhang;W Zhao;D Abbaneo;R Alemany;U Becker;A.O Bazarko;P Bright-Thomas;M Cattaneo;F Cerutti;G Dissertori;H Drevermann;R.W Forty;M Frank;R Hagelberg;J.B Hansen;J Harvey;P Janot;B Jost;E Kneringer;J Knobloch;I Lehraus;G Lutters;P Mato;A Minten;L Moneta;A Pacheco;J.-F Pusztaszeri;F Ranjard;G Rizzo;L Rolandi;D Rousseau;D Schlatter;M Schmitt;O Schneider;W Tejessy;I.R Tomalin;H Wachsmuth;A Wagner;Z Ajaltouni;A Barrès;C Boyer;A Falvard;C Ferdi;P Gay;C Guicheney;P Henrard;J Jousset;B Michel;S Monteil;J-C Montret;D Pallin;P Perret;F Podlyski;J Proriol;P Rosnet;J.-M Rossignol;T Fearnley;J.D Hansen;J.R Hansen;P.H Hansen;B.S Nilsson;B Rensch;A Wäänänen;G Daskalakis;A Kyriakis;C Markou;E Simopoulou;I Siotis;A Vayaki;A Blondel;G Bonneaud;J.C Brient;P Bourdon;A Rougé;M Rumpf;A Valassi;M Verderi;H Videau;D.J Candlin;M.I Parsons;E Focardi;G Parrini;K Zachariadou;M Corden;C Georgiopoulos;D.E Jaffe;A Antonelli;G Bencivenni;G Bologna;F Bossi;P Campana;G Capon;D Casper;V Chiarella;G Felici;P Laurelli;G Mannocchi;F Murtas;G.P Murtas;L Passalacqua;M Pepe-Altarelli;L Curtis;S.J Dorris;A.W Halley;I.G Knowles;J.G Lynch;V O'Shea;C Raine;J.M Scarr;K Smith;P Teixeira-Dias;A.S Thompson;E Thomson;F Thomson;R.M Turnbull;C Geweniger;G Graefe;P Hanke;G Hansper;V Hepp;E.E Kluge;A Putzer;M Schmidt;J Sommer;K Tittel;S Werner;M Wunsch;R Beuselinck;D.M Binnie;W Cameron;P.J Dornan;M Girone;S Goodsir;E.B Martin;A Moutoussi;J Nash;J.K Sedgbeer;P Spagnolo;A.M Stacey;M.D Williams;V.M Ghete;P Girtler;D Kuhn;G Rudolph;A.P Betteridge;C.K Bowdery;P Colrain;G Crawford;A.J Finch;F Foster;G Hughes;R.W Jones;T Sloan;M.I Williams;A Galla;I Giehl;A.M Greene;C Hoffmann;K Jakobs;K Kleinknecht;G Quast;B Renk;E Rohne;H.-G Sander;P van Gemmeren;C Zeitnitz;J.J Aubert;C Benchouk;A Bonissent;G Bujosa;D Calvet;J Carr;P Coyle;C Diaconu;F Etienne;N Konstantinidis;O Leroy;F Motsch;P Payre;M Talby;A Sadouki;M Thulasidas;K Trabelsi;M Aleppo;F Ragusa;R Berlich;W Blum;V Büscher;H Dietl;G Ganis;C Gotzhein;H Kroba;G Lütjens;G Lutz;W Männer;H.-G Moser;R Richter;A Rosado-Schlosser;S Schael;R Settles;H Seywerd;R.St Denis;H Stenzel;W Wiedenmann;G Wolf;J Boucrot;O Callot;S Chen;Y Choi;A Cordier;M Davier;L Duflot;J.-F Grivaz;Ph Heusse;A Höcker;A Jacholkowska;M Jacquet;D.W Kim;F Le Diberder;J Lefrançois;A.-M Lutz;I Nikolic;M.-H Schune;S Simion;E Tournefier;J.-J Veillet;I Videau;D Zerwas;P Azzurri;G Bagliesi;G Batignani;S Bettarini;C Bozzi;G Calderini;M Carpinelli;M.A Ciocci;V Ciulli;R Dell'Orso;R Fantechi;I Ferrante;L Foà;F Forti;A Giassi;M.A Giorgi;A Gregorio;F Ligabue;A Lusiani;P.S Marrocchesi;A Messineo;F Palla;G Sanguinetti;A Sciabà;J Steinberger;R Tenchini;G Tonelli;C Vannini;A Venturi;P.G Verdini;G.A Blair;L.M Bryant;J.T Chambers;Y Gao;M.G Green;T Medcalf;P Perrodo;J.A Strong;J.H von Wimmersperg-Toeller;D.R Botterill;R.W Clifft;T.R Edgecock;S Haywood;P Maley;P.R Norton;J.C Thompson;A.E Wright;B Bloch-Devaux;P Colas;S Emery;W Kozanecki;E Lançon;M.C Lemaire;E Locci;P Perez;J Rander;J.-F Renardy;A Roussarie;J.-P Schuller;J Schwindling;A Trabelsi;B Vallage;S.N Black;J.H Dann;R.P Johnson;H.Y Kim;A.M Litke;M.A McNeil;G Taylor;C.N Booth;R Boswell;C.A.J Brew;S Cartwright;F Combley;M.S Kelly;M Lehto;W.M Newton;J Reeve;L.F Thompson;A Böhrer;S Brandt;G Cowan;C Grupen;P Saraiva;L Smolik;F Stephan;M Apollonio;L Bosisio;R Della Marina;G Giannini;B Gobbo;G Musolino;J Rothberg;S Wasserbaech;S.R Armstrong;E Charles;P Elmer;D.P.S Ferguson;S González;T.C Greening;O.J Hayes;H Hu;S Jin;P.A McNamara;J.M Nachtman;J Nielsen;W Orejudos;Y.B Pan;Y Saadi;I.J Scott;J Walsh;Sau Lan Wu;X Wu;J.M Yamartino;G Zobernig
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/638707
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 13
  • ???jsp.display-item.citation.isi??? 11
social impact