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Fermion pair production in $e^+e^-$ collisions at 189-209 GeV and constraints on physics beyond the Standard Model

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. Buchmüller 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, 3 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 4 J.-C. Brient 4 F. Machefert 4 A. Rougé 4 H. Videau 4 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 W. Cameron G. Davies P.J. Dornan 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 M. Smizanska O. van der Aa C. Delaere V. Lemaitre U. Blumenschein F. Hölldorfer K. Jakobs F. Kayser A.-S. Müller B. Renk H.-G. Sander S. Schmeling H. Wachsmuth C. Zeitnitz T. Ziegler A. Bonissent 5 P. Coyle 5 C. Curtil 5 A. Ealet 5 D. Fouchez 5 P. Payre 5 A. Tilquin 5 F. Ragusa A. David H. Dietl G. Ganis K. Hüttmann G. Lütjens W. Männer H.-G. Moser R. Settles M. Villegas G. Wolf J. Boucrot 6 O. Callot 6 M. Davier 6 L. Duflot 6 J.-F. Grivaz 6 Ph. Heusse 6 A. Jacholkowska 3, 6 L. Serin 6 J.-J. Veillet 6 P. Azzurri G. Bagliesi T. Boccali L. Foa A. Giammanco A. Giassi F. Ligabue A. Messineo F. Palla G. Sanguinetti A. Sciaba 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. Clit T.R. Edgecock P.R. Norton I.R. Tomalin J.J. Ward B. Bloch-Devaux 7 D. Boumediene 7 P. Colas 7 B. Fabbro 7 E. Lançon 7 M.-C. Lemaire 7 E. Locci 7 P. Perez 7 J. Rander 7 B. Tuchming 7 B. Vallage 7 A.M. Litke G. Taylor C.N. Booth S. Cartwright F. Combley P.N. Hodgson M. Lehto L.F. Thompson A. Böhrer 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. 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
Abstract : Cross sections, angular distributions and forward-backward asymmetries are presented, of two-fermion events produced in e+e- collisions at centre-of-mass energies from 189 to 209 GeV at LEP, measured with the ALEPH detector. Results for e+e-, mu+mu-, tau+tau-, qq, bb and cc production are in agreement with the Standard Model predictions. Constraints are set on scenarios of new physics such as four-fermion contact interactions, leptoquarks, Z' bosons, TeV-scale quantum gravity and R-parity violating squarks and sneutrinos.
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Submitted on : Thursday, November 16, 2006 - 5:40:36 PM
Last modification on : Thursday, March 5, 2020 - 6:20:14 PM

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S. Schael, R. Barate, R. Brunelière, I. de Bonis, D. Decamp, et al.. Fermion pair production in $e^+e^-$ collisions at 189-209 GeV and constraints on physics beyond the Standard Model. European Physical Journal C: Particles and Fields, Springer Verlag (Germany), 2007, 49, pp.411-437. ⟨10.1140/epjc/s10052-006-0156-8⟩. ⟨in2p3-00114511⟩

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