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Measurement of Z-pair production in $e^+e^−$ collisions and constraints on anomalous neutral gauge couplings

S. Schael R. Barate 1 R. Brunelière 1 I. de Bonis 1 D. Decamp 1 C. Goy 1 S. Jézéquel 1 J.P. Lees 1 F. Martin 1 E. Merle 1 M.-N. Minard 1 B. Pietrzyk 1 B. Trocmé 1 S. Bravo M.P. Casado M. Chmeissani J.M. Crespo E. Fernandez M. Fernandez-Bosman Ll. Garrido M. Martinez A. Pacheco 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 Jiali Lin Q. Ouyang T. Wang Y. Xie R. Xu S. Xue J. Zhang L. Zhang W. Zhao D. Abbaneo T. Barklow O. Buchm¨uller M. Cattaneo B. Clerbaux H. Drevermann R.W. Forty M. Frank F. Gianotti J.B. Hansen J. Harvey D.E. Hutchcroft P. Janot B. Jost M. Kado P. Mato A. Moutoussi F. Ranjard L. Rolandi D. Schlatter F. Teubert A. Valassi I. Videau F. Badaud 2 S. Dessagne 2 Alain Falvard 2 D. Fayolle 2 Pascal Gay 2 J. Jousset 2 B. Michel 2 S. Monteil 2 D. Pallin 2 J M. Pascolo 2 Pascal Perret 2 J.D. Hansen J.R. Hansen P.H. Hansen A.C. Kraan B.S. Nilsson A. Kyriakis C. Markou E. Simopoulou A. Vayaki K. Zachariadou A. Blondel 3 J.-C. Brient 3 F. Machefert 3 A. Rougé 3 H. Videau 3 V. Ciulli E. Focardi G. Parrini A. Antonelli M. Antonelli G. Bencivenni F. Bossi G. Capon F. Cerutti 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 A. Putzer H. Stenzel K. Tittel M. Wunsch R. Beuselinck G. Davies M. Girone 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 T. Sloan M. Smizanska O. van der Aa C. Delaere V. Lemaitre U. Blumenschein F. H¨olldorfer K. Jakobs F. Kayser B. Renk H.-G. Sander S. Schmeling H. Wachsmuth C. Zeitnitz T. Ziegler A. Bonissent 4 P. Coyle 4 C. Curtil 4 A. Ealet 4 D. Fouchez 4 P. Payre 4 A. Tilquin 4 F. Ragusa A. David H. Dietl G. Ganis K. H¨uttmann G. L¨utjens W. M¨anner H.-G. Moser R. Settles M. Villegas G. Wolf J. Boucrot 5 O. Callot 5 M. Davier 5 L. Duflot 5 J.-F. Grivaz 5 Ph. Heusse 5 A. Jacholkowska 5 L. Serin 5 J.-J. Veillet 5 P. Azzurri G. Bagliesi T. Boccali L. Fo'A A. Giammanco A. Giassi F. Ligabue A. Messineo F. Palla G. Sanguinetti A. Sciab'A G. Sguazzoni P. Spagnolo R. Tenchini A. Venturi P.G. Verdini O. Awunor G.A. Blair G. Cowan A. Garcia-Bellido M.G. Green T. Medcalf A. Misiejuk J.A. Strong P. Teixeira-Dias R.W. Clifft T.R. Edgecock P.R. Norton I.R. Tomalin J.J. Ward B. Bloch-Devaux 6 D. Boumediene 6 P. Colas 6 B. Fabbro 6 E. Lançon 6 M.-C. Lemaire 6 E. Locci 6 P. Perez 6 J. Rander 6 B. Tuchming 6 B. Vallage 6 A.M. Litke G. Taylor C.N. Booth S. Cartwright F. Combley P.N. Hodgson M. Lehto L.F. Thompson A. B¨ohrer S. Brandt C. Grupen J. Hess A. Ngac G. Prange C. Borean G. Giannini H. He J. Putz J. Rothberg S.R. Armstrong K. Berkelman K. Cranmer D.P.S. Ferguson Y. Gao S. Gonz'Alez 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
Abstract : The ZZ production cross section is measured from a data sample corresponding to a total integrated luminosity of 452 pb−1, collected by the ALEPH experiment at LEP at centre-of-mass energies from 192 to 209 GeV. Individual cross sections, extracted at six centre-of-mass energies, are found to be in agreement with Standard Model calculations. The results are used to set limits on anomalous neutral gauge couplings.
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Submitted on : Friday, June 19, 2009 - 9:19:05 AM
Last modification on : Thursday, March 5, 2020 - 6:27:05 PM

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S. Schael, R. Barate, R. Brunelière, I. de Bonis, D. Decamp, et al.. Measurement of Z-pair production in $e^+e^−$ collisions and constraints on anomalous neutral gauge couplings. Journal of High Energy Physics, Springer, 2009, 04, pp.124. ⟨10.1088/1126-6708/2009/04/124⟩. ⟨in2p3-00396724⟩

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