Four-jet final state production in e(+)e(-) collisions at centre-of-mass energies ranging from 130 to 184 GeV

Barate, R.; Buskulic, D.; Decamp, D.; Ghez, P.; Goy, C.; Lees, J.; Lucotte, A.; Minard, M.; Nief, J.; Pietrzyk, B.; 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.; Morawitz, P.; Park, I.; Pascual, A.; Perlas, J.; 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.; Alemany, R.; Becker, U.; Bright Thomas, P.; Casper, D.; Cattaneo, M.; Cerutti, F.; Ciulli, V.; Dissertori, G.; Drevermann, H.; Forty, R.; Frank, M.; Gianotti, F.; Hagelberg, R.; Hansen, J.; Harvey, J.; Janot, P.; Jost, B.; Lehraus, I.; Mato, P.; Minten, A.; Moneta, L.; Pacheco, A.; Pusztaszeri, J.; Ranjard, F.; Rolandi, L.; Rousseau, D.; Schlatter, D.; Schmitt, M.; Schneider, O.; Tejessy, W.; Teubert, F.; Tomalin, I.; Vreeswijk, M.; Wachsmuth, H.; Wagner, A.; 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.; Fearnley, T.; Hansen, J.; Hansen, J.; Hansen, P.; Nilsson, B.; Rensch, B.; Waananen, A.; Daskalakis, G.; Kyriakis, A.; Markou, C.; Simopoulou, E.; Vayaki, A.; Blondel, A.; Brient, J.; Machefert, F.; Rouge, A.; Rumpf, M.; Valassi, A.; Videau, H.; Boccali, T.; Focardi, E.; Parrini, G.; Zachariadou, K.; Cavanaugh, R.; Corden, M.; Georgiopoulos, C.; Huehn, T.; 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.; Dorris, S.; Halley, A.; Lynch, J.; Negus, P.; O'Shea, V.; Raine, C.; Scarr, J.; Smith, K.; Teixeira Dias, P.; Thompson, A.; Thomson, E.; Thomson, F.; 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.; Whelan, E.; 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.; Ealet, A.; Fouchez, D.; Leroy, O.; Motsch, F.; Payre, P.; Talby, M.; Sadouki, A.; Thulasidas, M.; Tilquin, A.; Trabelsi, K.; Aleppo, M.; Antonelli, M.; Ragusa, F.; Berlich, R.; Blum, W.; Buscher, V.; Dietl, H.; Ganis, G.; Gotzhein, C.; Kroha, H.; Lutjens, G.; Lutz, G.; Mannert, C.; Manner, W.; Moser, H.; Richter, R.; Rosado Schlosser, A.; Schael, S.; Settles, R.; Seywerd, H.; Stenzel, H.; Wiedenmann, W.; Wolf, G.; Boucrot, J.; Chen, S.; Davier, M.; Duflot, L.; Grivas, J.; Heusse, P.; Hocker, A.; Jacholkowska, A.; Kado, M.; Kim, D.; Le Diberder, F.; Lefrancois, J.; Lutz, A.; Schune, M.; Serin, L.; Tournefier, E.; Veillet, J.; Videau, I.; Zerwas, D.; Azzurri, P.; Bagliesi, G.; Bettarini, S.; Bozzi, C.; Calderini, G.; Dell'Orosco, R.; Fantechi, R.; Ferrante, I.; Giassi, A.; Gregorio, A.; Ligabue, F.; Lusiani, A.; Marrocchesi, P.; Messineo, A.; Palla, F.; Rizzo, G.; Sanguinetti, G.; Sciaba, A.; Sguazzoni, G.; Steinberger, J.; Tenchini, R.; Vannini, C.; Venturi, A.; Verdini, P.; Blair, G.; Bryant, L.; Chambers, J.; Coles, J.; Green, M.; Medcalf, T.; Perrodo, P.; Strong, J.; von Wimmersperg Toeller, J.; Botterill, D.; Clift, R.; Edgebrook, T.; Haywood, S.; Maley, P.; Norton, P.; Thompson, J.; Wright, A.; Bloch Devaux, B.; Colas, P.; Fabbro, B.; Faif, G.; Lancon, E.; Lemaire, M.; Locci, E.; Perez, P.; Przysiezniak, H.; Rander, J.; Renardy, J.; Rosowsky, A.; Roussarie, A.; Trabelsi, A.; Vallage, B.; Black, S.; Dann, J.; Kim, H.; Konstantinidis, N.; Litke, A.; Mcneil, M.; Taylor, G.; Booth, C.; Brew, C.; Cartwright, S.; Combley, F.; Kelly, M.; Lehto, M.; Reeve, J.; Thompson, L.; Affholderbach, K.; Bohrer, A.; Brandt, S.; Cowan, G.; Foss, J.; Grupen, C.; Smolik, L.; Stephan, F.; Apollonio, M.; Bosisio, L.; Della Marina, R.; Giannini, G.; Gobbo, B.; Musolino, G.; Putz, J.; Rothberg, J.; Wasserbach, S.; Williams, R.; 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.; Yamartino, J.; Zobernig, G.

doi:10.1016/S0370-2693(97)01596-7

The four jet topology is analysed in the ALEPH data taken between November 1995 and October 1997, at centre-of-mass energies ranging from 130 to 184 GeV, While an unexpected accumulation of events with a dijet mass sum around 105 GeV/c(2) had been observed during the first run in 1995 at 130/136 GeV, corresponding to an integrated luminosity of 5.7 pb(-1), no significant differences between data and standard model prediction is seen, either in the high energy runs (81.1 pb(-1) taken at centre-of-mass energies from 161 to 184 GeV) or in the 7.1 pb(-1) recorded during a new short fun at 130/136 GeV in 1997, We have found no other explanation for the earlier reported "four jet anomaly" than a statistical fluctuation.

Four-jet final state production in e(+)e(-) collisions at centre-of-mass energies ranging from 130 to 184 GeV / R. Barate, D. Buskulic, D. Decamp, P. Ghez, C. Goy, J. Lees, A. Lucotte, M. Minard, J. Nief, B. Pietrzyk, 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, P. Morawitz, I. Park, A. Pascual, J. Perlas, 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, R. Alemany, U. Becker, P. Bright-Thomas, D. Casper, M. Cattaneo, F. Cerutti, V. Ciulli, G. Dissertori, H. Drevermann, R. Forty, M. Frank, F. Gianotti, R. Hagelberg, J. Hansen, J. Harvey, P. Janot, B. Jost, I. Lehraus, P. Mato, A. Minten, L. Moneta, A. Pacheco, J. Pusztaszeri, F. Ranjard, L. Rolandi, D. Rousseau, D. Schlatter, M. Schmitt, O. Schneider, W. Tejessy, F. Teubert, I. Tomalin, M. Vreeswijk, H. Wachsmuth, A. Wagner, 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, T. Fearnley, J. Hansen, J. Hansen, P. Hansen, B. Nilsson, B. Rensch, A. Waananen, G. Daskalakis, A. Kyriakis, C. Markou, E. Simopoulou, A. Vayaki, A. Blondel, J. Brient, F. Machefert, A. Rouge, M. Rumpf, A. Valassi, H. Videau, T. Boccali, E. Focardi, G. Parrini, K. Zachariadou, R. Cavanaugh, M. Corden, C. Georgiopoulos, T. Huehn, 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, S. Dorris, A. Halley, J. Lynch, P. Negus, V. O'Shea, C. Raine, J. Scarr, K. Smith, P. Teixeira-Dias, A. Thompson, E. Thomson, F. 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, E. Whelan, 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, A. Ealet, D. Fouchez, O. Leroy, F. Motsch, P. Payre, M. Talby, A. Sadouki, M. Thulasidas, A. Tilquin, K. Trabelsi, M. Aleppo, M. Antonelli, F. Ragusa, R. Berlich, W. Blum, V. Buscher, H. Dietl, G. Ganis, C. Gotzhein, H. Kroha, G. Lutjens, G. Lutz, C. Mannert, W. Manner, H. Moser, R. Richter, A. Rosado-Schlosser, S. Schael, R. Settles, H. Seywerd, H. Stenzel, W. Wiedenmann, G. Wolf, J. Boucrot, S. Chen, M. Davier, L. Duflot, J. Grivas, P. Heusse, A. Hocker, A. Jacholkowska, M. Kado, D. Kim, F. Le Diberder, J. Lefrancois, A. Lutz, M. Schune, L. Serin, E. Tournefier, J. Veillet, I. Videau, D. Zerwas, P. Azzurri, G. Bagliesi, S. Bettarini, C. Bozzi, G. Calderini, R. Dell'Orosco, R. Fantechi, I. Ferrante, A. Giassi, A. Gregorio, F. Ligabue, A. Lusiani, P. Marrocchesi, A. Messineo, F. Palla, G. Rizzo, G. Sanguinetti, A. Sciaba, G. Sguazzoni, J. Steinberger, R. Tenchini, C. Vannini, A. Venturi, P. Verdini, G. Blair, L. Bryant, J. Chambers, J. Coles, M. Green, T. Medcalf, P. Perrodo, J. Strong, J. von Wimmersperg-Toeller, D. Botterill, R. Clift, T. Edgebrook, S. Haywood, P. Maley, P. Norton, J. Thompson, A. Wright, B. Bloch-Devaux, P. Colas, B. Fabbro, G. Faif, E. Lancon, M. Lemaire, E. Locci, P. Perez, H. Przysiezniak, J. Rander, J. Renardy, A. Rosowsky, A. Roussarie, A. Trabelsi, B. Vallage, S. Black, J. Dann, H. Kim, N. Konstantinidis, A. Litke, M. McNeil, G. Taylor, C. Booth, C. Brew, S. Cartwright, F. Combley, M. Kelly, M. Lehto, J. Reeve, L. THompson, K. Affholderbach, A. Bohrer, S. Brandt, G. Cowan, J. Foss, C. Grupen, L. Smolik, F. Stephan, M. Apollonio, L. Bosisio, R. Della Marina, G. Giannini, B. Gobbo, G. Musolino, J. Putz, J. Rothberg, S. Wasserbach, R. Williams, 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, J. Yamartino, G. Zobernig. - In: PHYSICS LETTERS. SECTION B. - ISSN 0370-2693. - 420:1-2(1998), pp. 196-204. [10.1016/S0370-2693(97)01596-7]

Four-jet final state production in e(+)e(-) collisions at centre-of-mass energies ranging from 130 to 184 GeV

R. Barate;D. Buskulic;D. Decamp;P. Ghez;C. Goy;J. Lees;A. Lucotte;M. Minard;J. Nief;B. Pietrzyk;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;P. Morawitz;I. Park;A. Pascual;J. Perlas;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;R. Alemany;U. Becker;P. Bright Thomas;D. Casper;M. Cattaneo;F. Cerutti;V. Ciulli;G. Dissertori;H. Drevermann;R. Forty;M. Frank;F. Gianotti;R. Hagelberg;J. Hansen;J. Harvey;P. Janot;B. Jost;I. Lehraus;P. Mato;A. Minten;L. Moneta;A. Pacheco;J. Pusztaszeri;F. Ranjard;L. Rolandi;D. Rousseau;D. Schlatter;M. Schmitt;O. Schneider;W. Tejessy;F. Teubert;I. Tomalin;M. Vreeswijk;H. Wachsmuth;A. Wagner;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;T. Fearnley;J. Hansen;J. Hansen;P. Hansen;B. Nilsson;B. Rensch;A. Waananen;G. Daskalakis;A. Kyriakis;C. Markou;E. Simopoulou;A. Vayaki;A. Blondel;J. Brient;F. Machefert;A. Rouge;M. Rumpf;A. Valassi;H. Videau;T. Boccali;E. Focardi;G. Parrini;K. Zachariadou;R. Cavanaugh;M. Corden;C. Georgiopoulos;T. Huehn;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;S. Dorris;A. Halley;J. Lynch;P. Negus;V. O'Shea;C. Raine;J. Scarr;K. Smith;P. Teixeira Dias;A. Thompson;E. Thomson;F. 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;E. Whelan;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;A. Ealet;D. Fouchez;O. Leroy;F. Motsch;P. Payre;M. Talby;A. Sadouki;M. Thulasidas;A. Tilquin;K. Trabelsi;M. Aleppo;M. Antonelli;F. Ragusa;R. Berlich;W. Blum;V. Buscher;H. Dietl;G. Ganis;C. Gotzhein;H. Kroha;G. Lutjens;G. Lutz;C. Mannert;W. Manner;H. Moser;R. Richter;A. Rosado Schlosser;S. Schael;R. Settles;H. Seywerd;H. Stenzel;W. Wiedenmann;G. Wolf;J. Boucrot;S. Chen;M. Davier;L. Duflot;J. Grivas;P. Heusse;A. Hocker;A. Jacholkowska;M. Kado;D. Kim;F. Le Diberder;J. Lefrancois;A. Lutz;M. Schune;L. Serin;E. Tournefier;J. Veillet;I. Videau;D. Zerwas;P. Azzurri;G. Bagliesi;S. Bettarini;C. Bozzi;G. Calderini;R. Dell'Orosco;R. Fantechi;I. Ferrante;A. Giassi;A. Gregorio;F. Ligabue;A. Lusiani;P. Marrocchesi;A. Messineo;F. Palla;G. Rizzo;G. Sanguinetti;A. Sciaba;G. Sguazzoni;J. Steinberger;R. Tenchini;C. Vannini;A. Venturi;P. Verdini;G. Blair;L. Bryant;J. Chambers;J. Coles;M. Green;T. Medcalf;P. Perrodo;J. Strong;J. von Wimmersperg Toeller;D. Botterill;R. Clift;T. Edgebrook;S. Haywood;P. Maley;P. Norton;J. Thompson;A. Wright;B. Bloch Devaux;P. Colas;B. Fabbro;G. Faif;E. Lancon;M. Lemaire;E. Locci;P. Perez;H. Przysiezniak;J. Rander;J. Renardy;A. Rosowsky;A. Roussarie;A. Trabelsi;B. Vallage;S. Black;J. Dann;H. Kim;N. Konstantinidis;A. Litke;M. McNeil;G. Taylor;C. Booth;C. Brew;S. Cartwright;F. Combley;M. Kelly;M. Lehto;J. Reeve;L. THompson;K. Affholderbach;A. Bohrer;S. Brandt;G. Cowan;J. Foss;C. Grupen;L. Smolik;F. Stephan;M. Apollonio;L. Bosisio;R. Della Marina;G. Giannini;B. Gobbo;G. Musolino;J. Putz;J. Rothberg;S. Wasserbach;R. Williams;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;J. Yamartino;G. Zobernig

1998

Abstract

The four jet topology is analysed in the ALEPH data taken between November 1995 and October 1997, at centre-of-mass energies ranging from 130 to 184 GeV, While an unexpected accumulation of events with a dijet mass sum around 105 GeV/c(2) had been observed during the first run in 1995 at 130/136 GeV, corresponding to an integrated luminosity of 5.7 pb(-1), no significant differences between data and standard model prediction is seen, either in the high energy runs (81.1 pb(-1) taken at centre-of-mass energies from 161 to 184 GeV) or in the 7.1 pb(-1) recorded during a new short fun at 130/136 GeV in 1997, We have found no other explanation for the earlier reported "four jet anomaly" than a statistical fluctuation.

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	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(97)01596-7
		
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			01 - Articolo su periodico

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