The forward-backward asymmetry for charm quarks at the Z

Barate, R.; Buskulic, D.; Decamp, D.; Ghez, P.; Goy, C.; Lees, J.; Lucotte, A.; Merle, E.; Minard, M.; Nief, J.; Pietrzyk, B.; Alemany, R.; Boix, G.; Casado, M.; Chmeissani, M.; Crespo, J.; Delfino, M.; Fernandez, E.; Fernandez Bosman, M.; Garrido, L.; Grauges, E.; Juste, A.; Martinez, M.; Merino, G.; Miquel, R.; Mir, L.; Park, I.; Pascual, A.; Riu, I.; Sanchez, F.; Colaleo, A.; Creanza, D.; de Palma, M.; Gelao, G.; Iaselli, G.; Maggi, G.; Maggi, M.; Nuzzo, S.; Ranieri, A.; Raso, G.; Ruggieri, F.; Selvaggi, G.; Silvestris, L.; Tempesta, P.; Tricomi, A.; Zito, G.; Huang, X.; Lin, J.; Ouyang, Q.; Wang, T.; Xie, Y.; Xu, R.; Xue, S.; Zhang, J.; Zhang, L.; Zhao, W.; Abbaneo, D.; Becker, U.; Bright Thomas, P.; Casper, D.; Cattaneo, M.; Cerutti, F.; Ciulli, V.; Dissertori, G.; Drevermann, H.; Forty, R.; Frank, M.; Hagelberg, R.; Halley, A.; Hansen, J.; Harvey, J.; Janot, P.; Jost, B.; Lehraus, I.; Mato, P.; Minten, A.; Moneta, L.; Pacheco, A.; Ranjard, F.; Rolandi, L.; Rousseau, D.; Schlatter, D.; Schmitt, M.; Schneider, O.; Tejessy, W.; Teubert, F.; Tomalin, I.; Wachsmuth, H.; Ajaltouni, Z.; Badaud, F.; Chazelle, G.; Deschamps, O.; Falvard, A.; Ferdi, C.; Gay, P.; Guicheney, C.; Henrard, P.; Jousset, J.; Michel, B.; Monteil, S.; Montret, J.; Pallin, D.; Perret, P.; Podlyski, F.; Proriol, J.; Rosnet, P.; Hansen, J.; Hansen, J.; Hansen, P.; Nilsson, B.; Rensch, B.; Waananen, A.; Daskalakis, G.; Kyriakis, A.; Markou, C.; Simopoulou, E.; Siotis, I.; Vayaki, A.; Blondel, A.; Bonneaud, G.; Brient, J.; Bourdon, P.; Rouge, A.; Rumpf, M.; Valassi, A.; Verderi, M.; Videau, H.; Focardi, E.; Parrini, G.; Zachariadou, K.; Corden, M.; Georgiopoulos, C.; Jaffe, D.; Antonelli, A.; Bencivenni, G.; Bologna, G.; Bossi, F.; Campana, P.; Capon, G.; Chiarella, V.; Felici, G.; Laurelli, P.; Mannocchi, G.; Murtas, F.; Murtas, G.; Passalacqua, L.; Pepe Altarelli, M.; Curtis, L.; Lynch, J.; Negus, P.; O'Shea, V.; Raine, C.; Scarr, J.; Smith, K.; Teixeira Dias, P.; Thompson, A.; Thomson, E.; Buchmuller, O.; Dhamotharan, S.; Geweniger, C.; Graefe, G.; Hanke, P.; Hansper, G.; Hepp, V.; Kluge, E.; Putzer, A.; Sommer, J.; Tittel, K.; Werner, S.; Wunsch, M.; Beuselinck, R.; Binnie, D.; Cameron, W.; Dornan, P.; Girone, M.; Goodsir, S.; Martin, E.; Marinelli, N.; Moutoussi, A.; Nash, J.; Sedgbeer, J.; Spagnolo, P.; Williams, M.; Ghete, V.; Girtler, P.; Kneringer, E.; Kuhn, D.; Rudolph, G.; Betteridge, A.; Bowdery, C.; Buck, P.; Colrain, P.; Crawford, G.; Finch, A.; Foster, F.; Hughes, G.; Jones, R.; Robertson, N.; Williams, M.; Giehl, I.; Hoffmann, C.; Jakobs, K.; Kleinknecht, K.; Quast, G.; Renk, B.; Rohne, E.; Sander, H.; van Gemmeren, P.; Zeitnitz, C.; Aubert, J.; Benchouk, C.; Bonissent, A.; Bujosa, G.; Carr, J.; Coyle, P.; Etienne, F.; Leroy, O.; Motsch, F.; Payre, P.; Talby, M.; Sadouki, A.; Thulasidas, M.; Trabelsi, K.; Aleppo, M.R.A.; Antonelli, M.; Ragusa, F.; Berlich, R.; Buscher, V.; Cowan, G.; Dietl, H.; Ganis, G.; Lutjens, G.; Mannert, C.; Manner, W.; Moser, H.; Schael, S.; Settles, R.; Seywerd, H.; Stenzel, H.; Wiedenmann, W.; Wolf, G.; Boucrot, J.; Callot, O.; Chen, S.; Cordier, A.; Davier, M.; Duflot, L.; Grivaz, J.; Heusse, P.; Hocker, A.; Jacholkowska, A.; Kim, D.; Le Diberder, F.; Lefrancois, J.; Lutz, A.; Schune, M.; Tournefier, E.; Veillet, J.; Videau, I.; Zerwas, D.; Azzurri, P.; Bagliesi, G.; Batignani, G.; Bettarini, S.; Boccali, T.; Bozzi, C.; Calderini, G.; Carpinelli, M.; Ciocci, M.; Dell'Orso, R.; Fantechi, R.; Ferrante, I.; Foa, L.; Forti, F.; Giassi, A.; Giorgi, M.; Gregorio, A.; Ligabue, F.; Lusiani, A.; Marrocchesi, P.; Messineo, A.; Palla, F.; Rizzo, G.; Sanguinetti, G.; Sciaba, A.; Sguazzoni, G.; Tenchini, R.; Tonelli, G.; Vannini, C.; Venturi, A.; Verdini, P.; Blair, G.; Bryant, L.; Chambers, J.; Green, M.; Medcalf, T.; Perrodo, P.; Strong, J.; von Wimmersperg Toeller, J.; Botterill, D.; Clifft, R.; Edgecock, T.; Norton, P.; Thompson, J.; Wright, A.; Boch Devaux, B.; Colas, P.; Emery, S.; Kozanecki, W.; Lancon, E.; Lemaire, M.; Locci, E.; Perez, P.; Rander, J.; Renardy, J.; Roussarie, A.; Schuller, J.; Schwindling, J.; Trabelsi, A.; Vallage, B.; Black, S.; Dann, J.; Johnson, R.; Kim, H.; Konstantinidis, N.; Litke, A.; Mcneil, M.; Taylor, G.; Booth, C.; Cartwright, S.; Combley, F.; Kelly, M.; Lehto, M.; Thompson, L.; Affholderbach, K.; Bohrer, A.; Brandt, S.; Grupen, C.; Saraiva, P.; Smolik, L.; Stephan, F.; Giannini, G.; Gobbo, B.; Musolino, G.; Rothberg, J.; Wasserbaech, S.; Armstrong, S.; Charles, E.; Elmer, P.; Ferguson, D.; Gao, Y.; Gonzalez, S.; Greening, T.; Hayes, O.; Hu, H.; Jin, S.; Mcnamara, P.; Nachtman, J.; Nielsen, J.; Orejudos, W.; Pan, Y.; Saadi, Y.; Scott, I.; Walsh, J.; Wu, S.; Wu, X.; Zobernig, G.

doi:10.1016/S0370-2693(98)00818-1

The data set collected with the ALEPH detector from 1991 to 1995 at LEP has been analysed to measure the charm forward-backward asymmetry at the Z. Out of a total of 4.1 million hadronic Z decays, about 36000 high momentum D(*+) D(+) and D(0) decays were reconstructed, of which 80% originate from Z --> <c(c)over bar> events. The forward-backward asymmetry was measured at three energy points: A(FB)(c)(root s = 89.37 GeV) = (-1.0 +/- 4.4)% A(FB)(c)(root s = 91.22 GeV) = (6.3 +/- 1.0)% A(FB)(c)(root s = 92.96 GeV) = (11.0 +/- 3.4)%. From this analysis, a value of the effective electroweak mixing angle sin(2)theta(W)(eff) = 0.2321 +/- 0.0016 is extracted.

The forward-backward asymmetry for charm quarks at the Z / R. Barate, D. Buskulic, D. Decamp, P. Ghez, C. Goy, J. Lees, A. Lucotte, E. Merle, M. Minard, J. Nief, B. Pietrzyk, R. Alemany, G. Boix, M. Casado, M. Chmeissani, J. Crespo, M. Delfino, E. Fernandez, M. Fernandez-Bosman, L. Garrido, E. Grauges, A. Juste, M. Martinez, G. Merino, R. Miquel, L. Mir, I. Park, A. Pascual, I. Riu, F. Sanchez, A. Colaleo, D. Creanza, M. de Palma, G. Gelao, G. Iaselli, G. Maggi, M. Maggi, 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, U. Becker, P. Bright-Thomas, D. Casper, M. Cattaneo, F. Cerutti, V. Ciulli, G. Dissertori, H. Drevermann, R. Forty, M. Frank, R. Hagelberg, A. Halley, J. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, P. Mato, A. Minten, L. Moneta, A. Pacheco, F. Ranjard, L. Rolandi, D. Rousseau, D. Schlatter, M. Schmitt, O. Schneider, W. Tejessy, F. Teubert, I. Tomalin, H. Wachsmuth, Z. Ajaltouni, F. Badaud, G. Chazelle, O. Deschamps, A. Falvard, C. Ferdi, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, S. Monteil, J. Montret, D. Pallin, P. Perret, F. Podlyski, J. Proriol, P. Rosnet, J. Hansen, J. Hansen, P. Hansen, B. Nilsson, B. Rensch, A. Waananen, G. Daskalakis, A. Kyriakis, C. Markou, E. Simopoulou, I. Siotis, A. Vayaki, A. Blondel, G. Bonneaud, J. Brient, P. Bourdon, A. Rouge, M. Rumpf, A. Valassi, M. Verderi, H. Videau, E. Focardi, G. Parrini, K. Zachariadou, M. Corden, C. Georgiopoulos, D. Jaffe, A. Antonelli, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, G. Felici, P. Laurelli, G. Mannocchi, F. Murtas, G. Murtas, L. Passalacqua, M. Pepe-Altarelli, L. Curtis, J. Lynch, P. Negus, V. O'Shea, C. Raine, J. Scarr, K. Smith, P. Teixeira-Dias, A. Thompson, E. Thomson, O. Buchmuller, S. Dhamotharan, C. Geweniger, G. Graefe, P. Hanke, G. Hansper, V. Hepp, E. Kluge, A. Putzer, J. Sommer, K. Tittel, S. Werner, M. Wunsch, R. Beuselinck, D. Binnie, W. Cameron, P. Dornan, M. Girone, S. Goodsir, E. Martin, N. Marinelli, A. Moutoussi, J. Nash, J. Sedgbeer, P. Spagnolo, M. Williams, V. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, A. Betteridge, C. Bowdery, P. Buck, P. Colrain, G. Crawford, A. Finch, F. Foster, G. Hughes, R. Jones, N. Robertson, M. Williams, I. Giehl, C. Hoffmann, K. Jakobs, K. Kleinknecht, G. Quast, B. Renk, E. Rohne, H. Sander, P. van Gemmeren, C. Zeitnitz, J. Aubert, C. Benchouk, A. Bonissent, G. Bujosa, J. Carr, P. Coyle, F. Etienne, O. Leroy, F. Motsch, P. Payre, M. Talby, A. Sadouki, M. Thulasidas, K. Trabelsi, M.R.A. Aleppo, M. Antonelli, F. Ragusa, R. Berlich, V. Buscher, G. Cowan, H. Dietl, G. Ganis, G. Lutjens, C. Mannert, W. Manner, H. Moser, S. Schael, R. Settles, H. Seywerd, H. Stenzel, W. Wiedenmann, G. Wolf, J. Boucrot, O. Callot, S. Chen, A. Cordier, M. Davier, L. Duflot, J. Grivaz, P. Heusse, A. Hocker, A. Jacholkowska, D. Kim, F. Le Diberder, J. Lefrancois, A. Lutz, M. Schune, E. Tournefier, J. Veillet, I. Videau, D. Zerwas, P. Azzurri, G. Bagliesi, G. Batignani, S. Bettarini, T. Boccali, C. Bozzi, G. Calderini, M. Carpinelli, M. Ciocci, R. Dell'Orso, R. Fantechi, I. Ferrante, L. Foa, F. Forti, A. Giassi, M. Giorgi, A. Gregorio, F. Ligabue, A. Lusiani, P. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, A. Sciaba, G. Sguazzoni, R. Tenchini, G. Tonelli, C. Vannini, A. Venturi, P. Verdini, G. Blair, L. Bryant, J. Chambers, M. Green, T. Medcalf, P. Perrodo, J. Strong, J. von Wimmersperg-Toeller, D. Botterill, R. Clifft, T. Edgecock, P. Norton, J. Thompson, A. Wright, B. Boch-Devaux, P. Colas, S. Emery, W. Kozanecki, E. Lancon, M. Lemaire, E. Locci, P. Perez, J. Rander, J. Renardy, A. Roussarie, J. Schuller, J. Schwindling, A. Trabelsi, B. Vallage, S. Black, J. Dann, R. Johnson, H. Kim, N. Konstantinidis, A. Litke, M. McNeil, G. Taylor, C. Booth, S. Cartwright, F. Combley, M. Kelly, M. Lehto, L. Thompson, K. Affholderbach, A. Bohrer, S. Brandt, C. Grupen, P. Saraiva, L. Smolik, F. Stephan, G. Giannini, B. Gobbo, G. Musolino, J. Rothberg, S. Wasserbaech, S. Armstrong, E. Charles, P. Elmer, D. Ferguson, Y. Gao, S. Gonzalez, T. Greening, O. Hayes, H. Hu, S. Jin, P. McNamara, J. Nachtman, J. Nielsen, W. Orejudos, Y. Pan, Y. Saadi, I. Scott, J. Walsh, S. Wu, X. Wu, G. Zobernig. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 434:3/4(1998), pp. 415-425.

The forward-backward asymmetry for charm quarks at the Z

R. Barate;D. Buskulic;D. Decamp;P. Ghez;C. Goy;J. Lees;A. Lucotte;E. Merle;M. Minard;J. Nief;B. Pietrzyk;R. Alemany;G. Boix;M. Casado;M. Chmeissani;J. Crespo;M. Delfino;E. Fernandez;M. Fernandez Bosman;L. Garrido;E. Grauges;A. Juste;M. Martinez;G. Merino;R. Miquel;L. Mir;I. Park;A. Pascual;I. Riu;F. Sanchez;A. Colaleo;D. Creanza;M. de Palma;G. Gelao;G. Iaselli;G. Maggi;M. Maggi;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;U. Becker;P. Bright Thomas;D. Casper;M. Cattaneo;F. Cerutti;V. Ciulli;G. Dissertori;H. Drevermann;R. Forty;M. Frank;R. Hagelberg;A. Halley;J. Hansen;J. Harvey;P. Janot;B. Jost;I. Lehraus;P. Mato;A. Minten;L. Moneta;A. Pacheco;F. Ranjard;L. Rolandi;D. Rousseau;D. Schlatter;M. Schmitt;O. Schneider;W. Tejessy;F. Teubert;I. Tomalin;H. Wachsmuth;Z. Ajaltouni;F. Badaud;G. Chazelle;O. Deschamps;A. Falvard;C. Ferdi;P. Gay;C. Guicheney;P. Henrard;J. Jousset;B. Michel;S. Monteil;J. Montret;D. Pallin;P. Perret;F. Podlyski;J. Proriol;P. Rosnet;J. Hansen;J. Hansen;P. Hansen;B. Nilsson;B. Rensch;A. Waananen;G. Daskalakis;A. Kyriakis;C. Markou;E. Simopoulou;I. Siotis;A. Vayaki;A. Blondel;G. Bonneaud;J. Brient;P. Bourdon;A. Rouge;M. Rumpf;A. Valassi;M. Verderi;H. Videau;E. Focardi;G. Parrini;K. Zachariadou;M. Corden;C. Georgiopoulos;D. Jaffe;A. Antonelli;G. Bencivenni;G. Bologna;F. Bossi;P. Campana;G. Capon;V. Chiarella;G. Felici;P. Laurelli;G. Mannocchi;F. Murtas;G. Murtas;L. Passalacqua;M. Pepe Altarelli;L. Curtis;J. Lynch;P. Negus;V. O'Shea;C. Raine;J. Scarr;K. Smith;P. Teixeira Dias;A. Thompson;E. Thomson;O. Buchmuller;S. Dhamotharan;C. Geweniger;G. Graefe;P. Hanke;G. Hansper;V. Hepp;E. Kluge;A. Putzer;J. Sommer;K. Tittel;S. Werner;M. Wunsch;R. Beuselinck;D. Binnie;W. Cameron;P. Dornan;M. Girone;S. Goodsir;E. Martin;N. Marinelli;A. Moutoussi;J. Nash;J. Sedgbeer;P. Spagnolo;M. Williams;V. Ghete;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;A. Betteridge;C. Bowdery;P. Buck;P. Colrain;G. Crawford;A. Finch;F. Foster;G. Hughes;R. Jones;N. Robertson;M. Williams;I. Giehl;C. Hoffmann;K. Jakobs;K. Kleinknecht;G. Quast;B. Renk;E. Rohne;H. Sander;P. van Gemmeren;C. Zeitnitz;J. Aubert;C. Benchouk;A. Bonissent;G. Bujosa;J. Carr;P. Coyle;F. Etienne;O. Leroy;F. Motsch;P. Payre;M. Talby;A. Sadouki;M. Thulasidas;K. Trabelsi;M.R.A. Aleppo;M. Antonelli;F. Ragusa;R. Berlich;V. Buscher;G. Cowan;H. Dietl;G. Ganis;G. Lutjens;C. Mannert;W. Manner;H. Moser;S. Schael;R. Settles;H. Seywerd;H. Stenzel;W. Wiedenmann;G. Wolf;J. Boucrot;O. Callot;S. Chen;A. Cordier;M. Davier;L. Duflot;J. Grivaz;P. Heusse;A. Hocker;A. Jacholkowska;D. Kim;F. Le Diberder;J. Lefrancois;A. Lutz;M. Schune;E. Tournefier;J. Veillet;I. Videau;D. Zerwas;P. Azzurri;G. Bagliesi;G. Batignani;S. Bettarini;T. Boccali;C. Bozzi;G. Calderini;M. Carpinelli;M. Ciocci;R. Dell'Orso;R. Fantechi;I. Ferrante;L. Foa;F. Forti;A. Giassi;M. Giorgi;A. Gregorio;F. Ligabue;A. Lusiani;P. Marrocchesi;A. Messineo;F. Palla;G. Rizzo;G. Sanguinetti;A. Sciaba;G. Sguazzoni;R. Tenchini;G. Tonelli;C. Vannini;A. Venturi;P. Verdini;G. Blair;L. Bryant;J. Chambers;M. Green;T. Medcalf;P. Perrodo;J. Strong;J. von Wimmersperg Toeller;D. Botterill;R. Clifft;T. Edgecock;P. Norton;J. Thompson;A. Wright;B. Boch Devaux;P. Colas;S. Emery;W. Kozanecki;E. Lancon;M. Lemaire;E. Locci;P. Perez;J. Rander;J. Renardy;A. Roussarie;J. Schuller;J. Schwindling;A. Trabelsi;B. Vallage;S. Black;J. Dann;R. Johnson;H. Kim;N. Konstantinidis;A. Litke;M. McNeil;G. Taylor;C. Booth;S. Cartwright;F. Combley;M. Kelly;M. Lehto;L. Thompson;K. Affholderbach;A. Bohrer;S. Brandt;C. Grupen;P. Saraiva;L. Smolik;F. Stephan;G. Giannini;B. Gobbo;G. Musolino;J. Rothberg;S. Wasserbaech;S. Armstrong;E. Charles;P. Elmer;D. Ferguson;Y. Gao;S. Gonzalez;T. Greening;O. Hayes;H. Hu;S. Jin;P. McNamara;J. Nachtman;J. Nielsen;W. Orejudos;Y. Pan;Y. Saadi;I. Scott;J. Walsh;S. Wu;X. Wu;G. Zobernig

1998

Abstract

The data set collected with the ALEPH detector from 1991 to 1995 at LEP has been analysed to measure the charm forward-backward asymmetry at the Z. Out of a total of 4.1 million hadronic Z decays, about 36000 high momentum D(*+) D(+) and D(0) decays were reconstructed, of which 80% originate from Z --> events. The forward-backward asymmetry was measured at three energy points: A(FB)(c)(root s = 89.37 GeV) = (-1.0 +/- 4.4)% A(FB)(c)(root s = 91.22 GeV) = (6.3 +/- 1.0)% A(FB)(c)(root s = 92.96 GeV) = (11.0 +/- 3.4)%. From this analysis, a value of the effective electroweak mixing angle sin(2)theta(W)(eff) = 0.2321 +/- 0.0016 is extracted.

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Scheda completa (DC)

	Settori scientifico-disciplinari dell'articolo
	
				Settore FIS/01 - Fisica Sperimentale
Settore FIS/04 - Fisica Nucleare e Subnucleare
			
	Data di pubblicazione
	
				1998
			
	Rivista in ANCE
	
				PHYSICS LETTERS. SECTION B
			
	DOI
	
				https://dx.doi.org/10.1016/S0370-2693(98)00818-1
			
	Tipologia
	
				Article (author)
			
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				01 - Articolo su periodico

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