A flavour-independent Higgs boson search in e+ e- collisions at s**(1/2) up to 209-GeV

Heister, A.; Schael, S.; Barate, R.; Bruneliere, R.; De Bonis, I.; Decamp, D.; Goy, C.; Jezequel, S.; Lees, J.P.; Martin, F.; Merle, E.; Minard, M.N.; Pietrzyk, B.; Trocme', B.; Boix, G.; Bravo, S.; Casado, M.P.; Chmeissani, M.; Crespo, J.M.; Fernandez, E.; Fernandez Bosman, M.; Garrido, L.; Grauges, E.; Lopez, J.; Martinez, M.; Merino, G.; Miquel, R.; Mir, L.M.; Pacheco, A.; Paneque, D.; Ruiz, H.; Colaleo, A.; Creanza, D.; De Filippis, N.; 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.; Azzurri, P.; Barklow, T.; Buchmuller, O.; Cattaneo, M.; Cerutti, F.; Clerbaux, B.; Drevermann, H.; Forty, R.W.; Frank, M.; Gianotti, F.; Greening, T.C.; Hansen, J.B.; Harvey, J.; Hutchcroft, D.E.; Janot, P.; Jost, B.; Kado, M.; Mato, P.; Moutoussi, A.; Ranjard, F.; Rolandi, L.; Schlatter, D.; Sguazzoni, G.; Tejessy, W.; Teubert, F.; Valassi, A.; Videau, I.; Ward, J.J.; Badaud, F.; Dessagne, S.; Falvard, A.; Fayolle, D.; Gay, P.; Jousset, J.; Michel, B.; Monteil, S.; Pallin, D.; Pascolo, J.M.; Perret, P.; Hansen, J.D.; Hansen, J.R.; Hansen, P.H.; Nilsson, B.S.; Kyriakis, A.; Markou, C.; Simopoulou, E.; Vayaki, A.; Zachariadou, K.; Blondel, A.; Brient, J.C.; Machefert, F.; Rouge', A.; Swynghedauw, M.; Tanaka, R.; Videau, H.; Ciulli, V.; Focardi, E.; Parrini, G.; Antonelli, A.; Antonelli, M.; Bencivenni, G.; Bossi, F.; Capon, G.; Chiarella, V.; Laurelli, P.; Mannocchi, G.; Murtas, G.P.; Passalacqua, L.; Kennedy, J.; Lynch, J.G.; Negus, P.; O'Shea, V.; Thompson, A.S.; Wasserbaech, S.; Cavanaugh, R.; Dhamotharan, S.; Geweniger, C.; Hanke, P.; Hepp, V.; Kluge, E.E.; Leibenguth, G.; Putzer, A.; Stenzel, H.; Tittel, K.; Wunsch, M.; Beuselinck, R.; Cameron, W.; Davies, G.; Dornan, P.J.; Girone, M.; Hill, R.D.; Marinelli, N.; Nowell, J.; Rutherford, S.A.; Sedgbeer, J.K.; Thompson, J.C.; White, R.; Ghete, V.M.; Girtler, P.; Kneringer, E.; Kuhn, D.; Rudolph, G.; Bouhova Thacker, E.; Bowdery, C.K.; Clarke, D.P.; Ellis, G.; Finch, A.J.; Foster, F.; Hughes, G.; Jones, R.W.L.; Pearson, M.R.; Robertson, N.A.; Smizanska, M.; van der Aa, O.; Delaere, C.; Lemaitre, V.; Blumenschein, U.; Holldorfer, F.; Jakobs, K.; Kayser, F.; Kleinknecht, K.; Muller, A.S.; Quast, G.; Renk, B.; Sander, H.G.; Schmeling, S.; Wachsmuth, H.; Zeitnitz, C.; Ziegler, T.; Bonissent, A.; Coyle, P.; Curtil, C.; Ealet, A.; Fouchez, D.; Payre, P.; Tilquin, A.; Ragusa, F.; David, A.; Dietl, H.; Ganis, G.; Huttmann, K.; Lutjens, G.; Manner, W.; Moser, H.G.; Settles, R.; Wolf, G.; Boucrot, J.; Callot, O.; Davier, M.; Duflot, L.; Grivaz, J.F.; Heusse, P.H.; Jacholkowska, A.; Loomis, C.; Serin, L.; Veillet, J.J.; de Vivie de Regie, J.B.; Yuan, C.; Bagliesi, G.; Boccali, T.; Foa', L.; Giammanco, A.; Giassi, A.; Ligabue, F.; Messineo, A.; Palla, F.; Sanguinetti, G.; Sciaba', A.; Tenchini, R.; Venturi, A.; Verdini, P.G.; Awunor, O.; Blair, G.A.; Cowan, G.; Garcia Bellido, A.; Green, M.G.; Jones, L.T.; Medcalf, T.; Misiejuk, A.; Strong, J.A.; Teixeira Dias, P.; Clifft, R.W.; Edgecock, T.R.; Norton, P.R.; Tomalin, I.R.; Bloch Devaux, B.; Boumediene, D.; Colas, P.; Fabbro, B.; Lancon, E.; Lemaire, M.C.; Locci, E.; Perez, P.; Rander, J.; Tuchming, B.; Vallage, B.; Konstantinidis, N.; Litke, A.M.; Taylor, G.; Booth, C.N.; Cartwright, S.; Combley, F.; Hodgson, P.N.; Lehto, M.; Thompson, L.F.; Affholderbach, K.; Bohrer, A.; Brandt, S.; Grupen, C.; Hess, J.; Ngac, A.; Prange, G.; Sieler, U.; Borean, C.; Giannini, G.; He, H.; Putz, J.; Rothberg, J.; Armstrong, S.R.; Berkelman, K.; Cranmer, K.; Ferguson, D.P.S.; Gao, Y.; Gonzalez, S.; Hayes, O.J.; Hu, H.; Jin, S.; Kile, J.; McNamara III, P.A.; Nielsen, J.; Pan, Y.B.; von Wimmersperg Toeller, J.H.; Wiedenmann, W.; Wu, J.; Sau Lan Wu,; Wu, X.; Zobernig, G.; Dissertori, G.

doi:10.1016/S0370-2693(02)02241-4

A search for the Higgsstrahlung process e+e- -> HZ is carried out, covering decays of the Higgs boson into any quark pair, a gluon pair or a tau pair. The analysis is based on the 630pb-1 of data collected by the ALEPH detector at LEP at centre-of-mass energies from 189 to 209GeV. A 95% C.L. lower mass limit of 109.1GeV/c2 is obtained for a Higgs boson cross section equal to that expected from the Standard Model if the Higgs boson decays exclusively into hadrons and/or taus, irrespective of the relative branching fractions.

A flavour-independent Higgs boson search in e+ e- collisions at s**(1/2) up to 209-GeV / A. Heister, S. Schael, R. Barate, R. Bruneliere, I. De Bonis, D. Decamp, C. Goy, S. Jezequel, J.P. Lees, F. Martin, E. Merle, M.N. Minard, B. Pietrzyk, B. Trocme', G. Boix, S. Bravo, M.P. Casado, M. Chmeissani, J.M. Crespo, E. Fernandez, M. Fernandez-Bosman, L. Garrido, E. Grauges, J. Lopez, M. Martinez, G. Merino, R. Miquel, L.M. Mir, A. Pacheco, D. Paneque, H. Ruiz, A. Colaleo, D. Creanza, N. De Filippis, 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, P. Azzurri, T. Barklow, O. Buchmuller, M. Cattaneo, F. Cerutti, B. Clerbaux, H. Drevermann, R.W. Forty, M. Frank, F. Gianotti, T.C. Greening, J.B. Hansen, J. Harvey, D.E. Hutchcroft, P. Janot, B. Jost, M. Kado, P. Mato, A. Moutoussi, F. Ranjard, L. Rolandi, D. Schlatter, G. Sguazzoni, W. Tejessy, F. Teubert, A. Valassi, I. Videau, J.J. Ward, F. Badaud, S. Dessagne, A. Falvard, D. Fayolle, P. Gay, J. Jousset, B. Michel, S. Monteil, D. Pallin, J.M. Pascolo, P. Perret, J.D. Hansen, J.R. Hansen, P.H. Hansen, B.S. Nilsson, A. Kyriakis, C. Markou, E. Simopoulou, A. Vayaki, K. Zachariadou, A. Blondel, J.C. Brient, F. Machefert, A. Rouge', M. Swynghedauw, R. Tanaka, H. Videau, V. Ciulli, E. Focardi, G. Parrini, A. Antonelli, M. Antonelli, G. Bencivenni, F. Bossi, G. Capon, V. Chiarella, P. Laurelli, G. Mannocchi, G.P. Murtas, L. Passalacqua, J. Kennedy, J.G. Lynch, P. Negus, V. O'Shea, A.S. Thompson, S. Wasserbaech, R. Cavanaugh, S. Dhamotharan, C. Geweniger, P. Hanke, V. Hepp, E.E. Kluge, G. Leibenguth, A. Putzer, H. Stenzel, K. Tittel, M. Wunsch, R. Beuselinck, W. Cameron, G. Davies, P.J. Dornan, M. Girone, R.D. Hill, N. Marinelli, J. Nowell, S.A. Rutherford, J.K. Sedgbeer, J.C. Thompson, R. White, V.M. Ghete, P. Girtler, E. Kneringer, D. Kuhn, G. Rudolph, E. Bouhova-Thacker, C.K. Bowdery, D.P. Clarke, G. Ellis, A.J. Finch, F. Foster, G. Hughes, R.W.L. Jones, M.R. Pearson, N.A. Robertson, M. Smizanska, O. van der Aa, C. Delaere, V. Lemaitre, U. Blumenschein, F. Holldorfer, K. Jakobs, F. Kayser, K. Kleinknecht, A.S. Muller, G. Quast, B. Renk, H.G. Sander, S. Schmeling, H. Wachsmuth, C. Zeitnitz, T. Ziegler, A. Bonissent, P. Coyle, C. Curtil, A. Ealet, D. Fouchez, P. Payre, A. Tilquin, F. Ragusa, A. David, H. Dietl, G. Ganis, K. Huttmann, G. Lutjens, W. Manner, H.G. Moser, R. Settles, G. Wolf, J. Boucrot, O. Callot, M. Davier, L. Duflot, J.F. Grivaz, Ph. Heusse, A. Jacholkowska, C. Loomis, L. Serin, J.J. Veillet, J.B. de Vivie de Regie, C. Yuan, G. Bagliesi, T. Boccali, L. Foa', A. Giammanco, A. Giassi, F. Ligabue, A. Messineo, F. Palla, G. Sanguinetti, A. Sciaba', R. Tenchini, A. Venturi, P.G. Verdini, O. Awunor, G.A. Blair, G. Cowan, A. Garcia-Bellido, M.G. Green, L.T. Jones, T. Medcalf, A. Misiejuk, J.A. Strong, P. Teixeira-Dias, R.W. Clifft, T.R. Edgecock, P.R. Norton, I.R. Tomalin, B. Bloch-Devaux, D. Boumediene, P. Colas, B. Fabbro, E. Lancon, M.C. Lemaire, E. Locci, P. Perez, J. Rander, B. Tuchming, B. Vallage, N. Konstantinidis, A.M. Litke, G. Taylor, C.N. Booth, S. Cartwright, F. Combley, P.N. Hodgson, M. Lehto, L.F. Thompson, K. Affholderbach, A. Bohrer, S. Brandt, C. Grupen, J. Hess, A. Ngac, G. Prange, U. Sieler, C. Borean, G. Giannini, H. He, J. Putz, J. Rothberg, S.R. Armstrong, K. Berkelman, K. Cranmer, D.P.S. Ferguson, Y. Gao, S. Gonzalez, O.J. Hayes, H. Hu, S. Jin, J. Kile, P.A. McNamara III, J. Nielsen, Y.B. Pan, J.H. von Wimmersperg-Toeller, W. Wiedenmann, J. Wu, Sau Lan Wu, X. Wu, G. Zobernig, G. Dissertori. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 544:1-2(2002 Sep 19), pp. 25-34.

A flavour-independent Higgs boson search in e+ e- collisions at s**(1/2) up to 209-GeV

A. Heister;S. Schael;R. Barate;R. Bruneliere;I. De Bonis;D. Decamp;C. Goy;S. Jezequel;J. P. Lees;F. Martin;E. Merle;M. N. Minard;B. Pietrzyk;B. Trocme';G. Boix;S. Bravo;M. P. Casado;M. Chmeissani;J. M. Crespo;E. Fernandez;M. Fernandez Bosman;L. Garrido;E. Grauges;J. Lopez;M. Martinez;G. Merino;R. Miquel;L. M. Mir;A. Pacheco;D. Paneque;H. Ruiz;A. Colaleo;D. Creanza;N. De Filippis;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;P. Azzurri;T. Barklow;O. Buchmuller;M. Cattaneo;F. Cerutti;B. Clerbaux;H. Drevermann;R. W. Forty;M. Frank;F. Gianotti;T. C. Greening;J. B. Hansen;J. Harvey;D. E. Hutchcroft;P. Janot;B. Jost;M. Kado;P. Mato;A. Moutoussi;F. Ranjard;L. Rolandi;D. Schlatter;G. Sguazzoni;W. Tejessy;F. Teubert;A. Valassi;I. Videau;J. J. Ward;F. Badaud;S. Dessagne;A. Falvard;D. Fayolle;P. Gay;J. Jousset;B. Michel;S. Monteil;D. Pallin;J. M. Pascolo;P. Perret;J. D. Hansen;J. R. Hansen;P. H. Hansen;B. S. Nilsson;A. Kyriakis;C. Markou;E. Simopoulou;A. Vayaki;K. Zachariadou;A. Blondel;J. C. Brient;F. Machefert;A. Rouge';M. Swynghedauw;R. Tanaka;H. Videau;V. Ciulli;E. Focardi;G. Parrini;A. Antonelli;M. Antonelli;G. Bencivenni;F. Bossi;G. Capon;V. Chiarella;P. Laurelli;G. Mannocchi;G. P. Murtas;L. Passalacqua;J. Kennedy;J. G. Lynch;P. Negus;V. O'Shea;A. S. Thompson;S. Wasserbaech;R. Cavanaugh;S. Dhamotharan;C. Geweniger;P. Hanke;V. Hepp;E. E. Kluge;G. Leibenguth;A. Putzer;H. Stenzel;K. Tittel;M. Wunsch;R. Beuselinck;W. Cameron;G. Davies;P. J. Dornan;M. Girone;R. D. Hill;N. Marinelli;J. Nowell;S. A. Rutherford;J. K. Sedgbeer;J. C. Thompson;R. White;V. M. Ghete;P. Girtler;E. Kneringer;D. Kuhn;G. Rudolph;E. Bouhova Thacker;C. K. Bowdery;D. P. Clarke;G. Ellis;A. J. Finch;F. Foster;G. Hughes;R. W. L. Jones;M. R. Pearson;N. A. Robertson;M. Smizanska;O. van der Aa;C. Delaere;V. Lemaitre;U. Blumenschein;F. Holldorfer;K. Jakobs;F. Kayser;K. Kleinknecht;A. S. Muller;G. Quast;B. Renk;H. G. Sander;S. Schmeling;H. Wachsmuth;C. Zeitnitz;T. Ziegler;A. Bonissent;P. Coyle;C. Curtil;A. Ealet;D. Fouchez;P. Payre;A. Tilquin;F. Ragusa;A. David;H. Dietl;G. Ganis;K. Huttmann;G. Lutjens;W. Manner;H. G. Moser;R. Settles;G. Wolf;J. Boucrot;O. Callot;M. Davier;L. Duflot;J. F. Grivaz;P.h. Heusse;A. Jacholkowska;C. Loomis;L. Serin;J. J. Veillet;J. B. de Vivie de Regie;C. Yuan;G. Bagliesi;T. Boccali;L. Foa';A. Giammanco;A. Giassi;F. Ligabue;A. Messineo;F. Palla;G. Sanguinetti;A. Sciaba';R. Tenchini;A. Venturi;P. G. Verdini;O. Awunor;G. A. Blair;G. Cowan;A. Garcia Bellido;M. G. Green;L. T. Jones;T. Medcalf;A. Misiejuk;J. A. Strong;P. Teixeira Dias;R. W. Clifft;T. R. Edgecock;P. R. Norton;I. R. Tomalin;B. Bloch Devaux;D. Boumediene;P. Colas;B. Fabbro;E. Lancon;M. C. Lemaire;E. Locci;P. Perez;J. Rander;B. Tuchming;B. Vallage;N. Konstantinidis;A. M. Litke;G. Taylor;C. N. Booth;S. Cartwright;F. Combley;P. N. Hodgson;M. Lehto;L. F. Thompson;K. Affholderbach;A. Bohrer;S. Brandt;C. Grupen;J. Hess;A. Ngac;G. Prange;U. Sieler;C. Borean;G. Giannini;H. He;J. Putz;J. Rothberg;S. R. Armstrong;K. Berkelman;K. Cranmer;D. P. S. Ferguson;Y. Gao;S. Gonzalez;O. J. Hayes;H. Hu;S. Jin;J. Kile;P. A. McNamara III;J. Nielsen;Y. B. Pan;J. H. von Wimmersperg Toeller;W. Wiedenmann;J. Wu;Sau Lan Wu;X. Wu;G. Zobernig;G. Dissertori

2002

Abstract

A search for the Higgsstrahlung process e+e- -> HZ is carried out, covering decays of the Higgs boson into any quark pair, a gluon pair or a tau pair. The analysis is based on the 630pb-1 of data collected by the ALEPH detector at LEP at centre-of-mass energies from 189 to 209GeV. A 95% C.L. lower mass limit of 109.1GeV/c2 is obtained for a Higgs boson cross section equal to that expected from the Standard Model if the Higgs boson decays exclusively into hadrons and/or taus, irrespective of the relative branching fractions.

Scheda breve

Scheda completa

Scheda completa (DC)

	Parole chiave
	
			Elementary particles physics ; LEP ; Higgs boson ; standard model
		
	Settori scientifico-disciplinari dell'articolo
	
			Settore FIS/01 - Fisica Sperimentale
		
	Data di pubblicazione
	
			19-set-2002
		
	Rivista in ANCE
	
			PHYSICS LETTERS. SECTION B
		
	DOI
	
			https://dx.doi.org/10.1016/S0370-2693(02)02241-4
		
	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/2434/33292

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