Investigation of inclusive CP asymmetries in B0 decays

Barate, R.; Decamp, D.; Ghez, P.; Goy, C.; Lees, J.P.; Merle, E.; Minard, M.N.; Pietrzyk, B.; Bravo, S.; Casado, M.P.; Chmeissani, M.; Crespo, J.M.; Fernandez, E.; Fernandez Bosman, M.; Garrido, L.; Grauges, E.; Martinez, M.; Merino, G.; Miquel, R.; Mir, L.M.; Pacheco, A.; Ruiz, H.; Colaleo, A.; Creanza, D.; De Palma, M.; 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.; Boix, G.; Buchmuller, O.; Cattaneo, M.; Cerutti, F.; Dissertori, G.; Drevermann, H.; Forty, R.W.; Frank, M.; Greening, T.C.; Hansen, J.B.; Harvey, J.; Janot, P.; Jost, B.; Lehraus, I.; Mato, P.; Minten, A.; Moutoussi, A.; Ranjard, F.; Rolandi, G.; Schlatter, D.; Schmitt, M.; Schneider, O.; Spagnolo, P.; Tejessy, W.; Teubert, F.; Tournefier, E.; Wright, A.E.; Ajaltouni, Z.; Badaud, F.; Chazelle, G.; Deschamps, O.; Falvard, A.; Gay, P.; Guicheney, C.; Henrard, P.; Jousset, J.; Michel, B.; Monteil, S.; Montret, J.C.; Pallin, D.; Perret, P.; Podlyski, F.; Hansen, J.D.; Hansen, J.R.; Hansen, P.H.; Nilsson, B.S.; Petersen, B.A.; Waananen, A.; Daskalakis, G.; Kyriakis, A.; Markou, C.; Simopoulou, E.; Vayaki, A.; Blondel, A.; Bonneaud, G.; Brient, J.C.; Rouge, A.; Rumpf, M.; Swynghedauw, M.; Verderi, M.; Videau, H.; Focardi, E.; Parrini, G.; Zachariadou, K.; Antonelli, A.; Antonelli, M.; Bencivenni, G.; Bologna, G.; Bossi, F.; Campana, P.; Capon, G.; Chiarella, V.; Laurelli, P.; Mannocchi, G.; Murtas, F.; Murtas, G.P.; Passalacqua, L.; Pepe Altarelli, M.; Halley, A.W.; Lynch, J.G.; Negus, P.; O'Shea, V.; Raine, C.; Teixeira Dias, P.; Thompson, A.S.; Cavanaugh, R.; Dhamotharan, S.; Geweniger, C.; Hanke, P.; Hansper, G.; Hepp, V.; Kluge, E.E.; Putzer, A.; Sommer, J.; Tittel, K.; Werner, S.; Wunsch, M.; Beuselinck, R.; Binnie, D.M.; Cameron, W.; Dornan, P.J.; Girone, M.; Marinelli, N.; Sedgbeer, J.K.; Thompson, J.C.; Thomson, E.J.; Ghete, V.M.; Girtler, P.; Kneringer, E.; Kuhn, D.; Rudolph, G.; Bowdery, C.K.; Buck, P.G.; Finch, A.J.; Foster, F.; Hughes, G.; Jones, R.W.L.; Robertson, N.A.; Giehl, I.; Jakobs, K.; Kleinknecht, K.; Quast, G.; Renk, B.; Rohne, E.; Sander, H.G.; Wachsmuth, H.; Zeitnitz, C.; Bonissent, A.; Carr, J.; Coyle, P.; Leroy, O.; Payre, P.; Rousseau, D.; Talby, M.; Aleppo, M.; Ragusa, F.; Dietl, H.; Ganis, G.; Heister, A.; Huttmann, K.; Lutjens, G.; Mannert, C.; Manner, W.; Moser, H.G.; Schael, S.; Settles, R.; Stenzel, H.; Wiedenmann, W.; Wolf, G.; Azzurri, P.; Boucrot, J.; Callot, O.; Chen, S.; Cordier, A.; Davier, M.; Duflot, L.; Grivaz, J.F.; Heusse, P.; Jacholkowska, A.; Le Diberder, F.; Lefrancois, J.; Lutz, A.M.; Schune, M.H.; Veillet, J.J.; Videau, I.; Yuan, C.; Zerwas, D.; Bagliesi, G.; Boccali, T.; Calderini, G.; Ciulli, V.; Foa, L.; Giassi, A.; Ligabue, F.; Messineo, A.; Palla, F.; Rizzo, G.; Sanguinetti, G.; Sciaba, A.; Sguazzoni, G.; Tenchini, R.; Venturi, A.; Verdini, P.G.; Blair, G.A.; Cowan, G.; Green, M.G.; Medcalf, T.; Strong, J.A.; Von Wimmersperg Toeller, J.H.; Clifft, R.W.; Edgecock, T.R.; Norton, P.R.; Tomalin, I.R.; Brigitte Bloch Devaux,; Colas, P.; Emery, S.; Kozanecki, W.; Lancon, E.; Lemaire, M.C.; Locci, E.; Perez, P.; Rander, J.; Renardy, J.F.; Roussarie, A.; Schuller, J.P.; Schwindling, J.; Trabelsi, A.; Vallage, B.; Black, S.N.; Dann, J.H.; Johnson, R.P.; Kim, H.Y.; Konstantinidis, N.; Litke, A.M.; Mcneil, M.A.; Taylor, G.; Booth, C.N.; Cartwright, S.; Combley, F.; Lehto, M.; Thompson, L.F.; Affholderbach, K.; Boehrer, A.; Brandt, S.; Grupen, C.; Misiejuk, A.; Prange, G.; Sieler, U.; Giannini, G.; Gobbo, B.; Rothberg, J.; Wasserbaech, S.; Armstrong, S.R.; Cranmer, K.; Elmer, P.; Ferguson, D.P.S.; Gao, Y.; Gonzalez, S.; Hayes, O.J.; Hu, H.; Jin, S.; Kile, J.; Mcnamara, P.A.; Nielsen, J.; Orejudos, W.; Pan, Y.B.; Saadi, Y.; Scott, I.J.; Walsh, J.; S. L., W.; Wu, X.; Zobernig, G.

doi:10.1007/s100520100644

A search for CP violating effects in the mixing of neutral B mesons is performed using a sample of 4.1 million hadronic Z decays collected with the ALEPH detector from 1991 to 1995. By studying time-dependent asymmetries in flavour-tagged samples of semileptonic and fully inclusive b-hadron decays, two measurements of the semileptonic asymmetry are extracted. No evidence for CP violation is observed, and the combined value is obtained.

Investigation of inclusive CP asymmetries in B0 decays / R. Barate, D. Decamp, P. Ghez, C. Goy, J.P. Lees, E. Merle, M.N. Minard, B. Pietrzyk, S. Bravo, M.P. Casado, M. Chmeissani, J.M. Crespo, E. Fernandez, M. Fernandez Bosman, L. Garrido, E. Grauges, M. Martinez, G. Merino, R. Miquel, L.M. Mir, A. Pacheco, H. Ruiz, A. Colaleo, D. Creanza, M. De Palma, 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, G. Boix, O. Buchmuller, M. Cattaneo, F. Cerutti, G. Dissertori, H. Drevermann, R.W. Forty, M. Frank, T.C. Greening, J.B. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, P. Mato, A. Minten, A. Moutoussi, F. Ranjard, G. Rolandi, D. Schlatter, M. Schmitt, O. Schneider, P. Spagnolo, W. Tejessy, F. Teubert, E. Tournefier, A.E. Wright, Z. Ajaltouni, F. Badaud, G. Chazelle, O. Deschamps, A. Falvard, P. Gay, C. Guicheney, P. Henrard, J. Jousset, B. Michel, S. Monteil, J.C. Montret, D. Pallin, P. Perret, F. Podlyski, J.D. Hansen, J.R. Hansen, P.H. Hansen, B.S. Nilsson, B.A. Petersen, A. Waananen, G. Daskalakis, A. Kyriakis, C. Markou, E. Simopoulou, A. Vayaki, A. Blondel, G. Bonneaud, J.C. Brient, A. Rouge, M. Rumpf, M. Swynghedauw, M. Verderi, H. Videau, E. Focardi, G. Parrini, K. Zachariadou, A. Antonelli, M. Antonelli, G. Bencivenni, G. Bologna, F. Bossi, P. Campana, G. Capon, V. Chiarella, P. Laurelli, G. Mannocchi, F. Murtas, G.P. Murtas, L. Passalacqua, M. Pepe Altarelli, A.W. Halley, J.G. Lynch, P. Negus, V. O'Shea, C. Raine, P. Teixeira Dias, A.S. Thompson, R. Cavanaugh, S. Dhamotharan, C. Geweniger, P. Hanke, G. Hansper, V. Hepp, E.E. Kluge, A. Putzer, J. Sommer, K. Tittel, S. Werner, M. Wunsch, R. Beuselinck, D.M. Binnie, W. Cameron, P.J. Dornan, M. Girone, N. Marinelli, J.K. Sedgbeer, J.C. Thompson, E.J. Thomson, V.M. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, C.K. Bowdery, P.G. Buck, A.J. Finch, F. Foster, G. Hughes, R.W.L. Jones, N.A. Robertson, I. Giehl, K. Jakobs, K. Kleinknecht, G. Quast, B. Renk, E. Rohne, H.G. Sander, H. Wachsmuth, C. Zeitnitz, A. Bonissent, J. Carr, P. Coyle, O. Leroy, P. Payre, D. Rousseau, M. Talby, M. Aleppo, F. Ragusa, H. Dietl, G. Ganis, A. Heister, K. Huttmann, G. Lutjens, C. Mannert, W. Manner, H.G. Moser, S. Schael, R. Settles, H. Stenzel, W. Wiedenmann, G. Wolf, P. Azzurri, J. Boucrot, O. Callot, S. Chen, A. Cordier, M. Davier, L. Duflot, J.F. Grivaz, P. Heusse, A. Jacholkowska, F. Le Diberder, J. Lefrancois, A.M. Lutz, M.H. Schune, J.J. Veillet, I. Videau, C. Yuan, D. Zerwas, G. Bagliesi, T. Boccali, G. Calderini, V. Ciulli, L. Foa, A. Giassi, F. Ligabue, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, A. Sciaba, G. Sguazzoni, R. Tenchini, A. Venturi, P.G. Verdini, G.A. Blair, G. Cowan, M.G. Green, T. Medcalf, J.A. Strong, J.H. von Wimmersperg Toeller, R.W. Clifft, T.R. Edgecock, P.R. Norton, I.R. Tomalin, B. Bloch Devaux, P. Colas, S. Emery, W. Kozanecki, E. Lancon, 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, N. Konstantinidis, A.M. Litke, M.A. Mcneil, G. Taylor, C.N. Booth, S. Cartwright, F. Combley, M. Lehto, L.F. Thompson, K. Affholderbach, A. Boehrer, S. Brandt, C. Grupen, A. Misiejuk, G. Prange, U. Sieler, G. Giannini, B. Gobbo, J. Rothberg, S. Wasserbaech, S.R. Armstrong, K. Cranmer, P. Elmer, D.P.S. Ferguson, Y. Gao, S. Gonzalez, O.J. Hayes, H. Hu, S. Jin, J. Kile, P.A. Mcnamara, J. Nielsen, W. Orejudos, Y.B. Pan, Y. Saadi, I.J. Scott, J. Walsh, S.L. Wu, X. Wu, G. Zobernig. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 20:3(2001), pp. 431-443. [10.1007/s100520100644]

Investigation of inclusive CP asymmetries in B0 decays

R. Barate;D. Decamp;P. Ghez;C. Goy;J. P. Lees;E. Merle;M. N. Minard;B. Pietrzyk;S. Bravo;M. P. Casado;M. Chmeissani;J. M. Crespo;E. Fernandez;M. Fernandez Bosman;L. Garrido;E. Grauges;M. Martinez;G. Merino;R. Miquel;L. M. Mir;A. Pacheco;H. Ruiz;A. Colaleo;D. Creanza;M. De Palma;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;G. Boix;O. Buchmuller;M. Cattaneo;F. Cerutti;G. Dissertori;H. Drevermann;R. W. Forty;M. Frank;T. C. Greening;J. B. Hansen;John Harvey;P. Janot;B. Jost;I. Lehraus;P. Mato;A. Minten;A. Moutoussi;F. Ranjard;Gigi Rolandi;D. Schlatter;M. Schmitt;O. Schneider;P. Spagnolo;W. Tejessy;F. Teubert;E. Tournefier;A. E. Wright;Z. Ajaltouni;F. Badaud;G. Chazelle;O. Deschamps;A. Falvard;P. Gay;C. Guicheney;P. Henrard;J. Jousset;B. Michel;S. Monteil;J. C. Montret;D. Pallin;P. Perret;F. Podlyski;J. D. Hansen;J. R. Hansen;P. H. Hansen;B. S. Nilsson;B. A. Petersen;A. Waananen;G. Daskalakis;A. Kyriakis;C. Markou;E. Simopoulou;A. Vayaki;A. Blondel;G. Bonneaud;J. C. Brient;A. Rouge;M. Rumpf;M. Swynghedauw;M. Verderi;H. Videau;E. Focardi;G. Parrini;K. Zachariadou;A. Antonelli;M. Antonelli;G. Bencivenni;G. Bologna;F. Bossi;P. Campana;G. Capon;V. Chiarella;P. Laurelli;G. Mannocchi;F. Murtas;G. P. Murtas;L. Passalacqua;M. Pepe Altarelli;A. W. Halley;J. G. Lynch;P. Negus;V. O'Shea;C. Raine;P. Teixeira Dias;A. S. Thompson;R. Cavanaugh;S. Dhamotharan;C. Geweniger;P. Hanke;G. Hansper;V. Hepp;E. E. Kluge;A. Putzer;J. Sommer;K. Tittel;S. Werner;M. Wunsch;R. Beuselinck;D. M. Binnie;W. Cameron;P. J. Dornan;M. Girone;N. Marinelli;J. K. Sedgbeer;J. C. Thompson;Evelyn J. Thomson;V. M. Ghete;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;C. K. Bowdery;P. G. Buck;A. J. Finch;F. Foster;G. Hughes;R. W. L. Jones;N. A. Robertson;I. Giehl;K. Jakobs;K. Kleinknecht;G. Quast;B. Renk;E. Rohne;H. G. Sander;H. Wachsmuth;C. Zeitnitz;A. Bonissent;J. Carr;P. Coyle;O. Leroy;P. Payre;D. Rousseau;M. Talby;M. Aleppo;F. Ragusa;H. Dietl;G. Ganis;A. Heister;K. Huttmann;G. Lutjens;C. Mannert;W. Manner;H. G. Moser;S. Schael;R. Settles;H. Stenzel;W. Wiedenmann;G. Wolf;P. Azzurri;J. Boucrot;O. Callot;S. Chen;A. Cordier;M. Davier;L. Duflot;J. F. Grivaz;P. Heusse;A. Jacholkowska;F. Le Diberder;J. Lefrancois;A. M. Lutz;M. H. Schune;J. J. Veillet;I. Videau;C. Yuan;D. Zerwas;Giuseppe Bagliesi;T. Boccali;G. Calderini;V. Ciulli;L. Foa;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Rizzo;G. Sanguinetti;A. Sciaba;G. Sguazzoni;R. Tenchini;A. Venturi;P. G. Verdini;G. A. Blair;G. Cowan;M. G. Green;T. Medcalf;J. A. Strong;J. H. von Wimmersperg Toeller;R. W. Clifft;T. R. Edgecock;P. R. Norton;I. R. Tomalin;Brigitte Bloch Devaux;P. Colas;S. Emery;W. Kozanecki;E. Lancon;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;N. Konstantinidis;A. M. Litke;M. A. McNeil;G. Taylor;C. N. Booth;S. Cartwright;F. Combley;M. Lehto;L. F. Thompson;K. Affholderbach;Armin Boehrer;S. Brandt;C. Grupen;A. Misiejuk;G. Prange;U. Sieler;G. Giannini;B. Gobbo;J. Rothberg;S. Wasserbaech;S. R. Armstrong;K. Cranmer;P. Elmer;D. P. S. Ferguson;Y. Gao;S. Gonzalez;O. J. Hayes;H. Hu;S. Jin;J. Kile;P. A. McNamara;J. Nielsen;W. Orejudos;Y. B. Pan;Y. Saadi;I. J. Scott;J. Walsh;S. L. Wu;X. Wu;G. Zobernig

2001

Abstract

A search for CP violating effects in the mixing of neutral B mesons is performed using a sample of 4.1 million hadronic Z decays collected with the ALEPH detector from 1991 to 1995. By studying time-dependent asymmetries in flavour-tagged samples of semileptonic and fully inclusive b-hadron decays, two measurements of the semileptonic asymmetry are extracted. No evidence for CP violation is observed, and the combined value is obtained.

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	Parole chiave
	
				particle physics ; LEP ; standard model CP violation ; CKM matrix
			
	Settori scientifico-disciplinari dell'articolo (sola visualizzazione)
	
				Settore FIS/01 - Fisica Sperimentale
			
	Data di pubblicazione
	
				2001
			
	Rivista in ANCE
	
				THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS
			
	DOI
	
				https://dx.doi.org/10.1007/s100520100644
			
	Tipologia
	
				Article (author)
			
	Appare nelle tipologie:
	
				01 - Articolo su periodico

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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/149362

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