Search for Supersymmetric Particles in e+e- Collisions at sqrt(s) up to 202GeV and Mass Limit for the Lightest Neutralino

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RESEARCH PRODUCT

Search for Supersymmetric Particles in e+e- Collisions at sqrt(s) up to 202GeV and Mass Limit for the Lightest Neutralino

R. Barate I. De Bonis D. Decamp P. Ghez C. Goy S. Jezequel J.-p. Lees F. Martin E. Merle M.-n. Minard B. Pietrzyk S. Bravo M.p. Casado M. Chmeissani J.m. Crespo E. Fernandez M. Fernandez-bosman Ll. Garrido E. Graugés J. Lopez M. Martinez G. Merino R. Miquel Ll.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 G. Boix O. Buchmüller M. Cattaneo F. Cerutti B. Clerbaux G. Dissertori 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 V. Lemaitre P. Maley P. Mato A. Minten A. Moutoussi F. Ranjard L. Rolandi D. Schlatter M. Schmitt O. Schneider P. Spagnolo W. Tejessy F. Teubert E. Tournefier A. Valassi J.j. Ward A.e. Wright Z. Ajaltouni F. Badaud S. Dessagne A. Falvard D. Fayolle P. Gay P. Henrard J. Jousset B. Michel S. Monteil J-c. Montret D. Pallin J.m. Pascolo P. Perret F. Podlyski J.d. Hansen J.r. Hansen P.h. Hansen B.s. Nilsson A. Wäänänen G. Daskalakis A. Kyriakis C. Markou E. Simopoulou A. Vayaki A. Blondel J.-c. Brient F. Machefert A. Rougé M. Swynghedauw R. Tanaka 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 M. Chalmers A.w. Halley J. Kennedy J.g. Lynch P. Negus V. O'shea B. Raeven D. Smith P. Teixeira-dias A.s. Thompson R. Cavanaugh S. Dhamotharan C. Geweniger P. Hanke V. Hepp E.e. Kluge G. Leibenguth A. Putzer K. Tittel S. Werner M. Wunsch R. Beuselinck D.m. Binnie W. Cameron G. Davies P.j. Dornan M. Girone N. Marinelli J. Nowell H. Przysiezniak J.k. Sedgbeer J.c. Thompson E. Thomson 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 I. Giehl F. Hölldorfer K. Jakobs K. Kleinknecht M. Kröcker A.-s. Müller H.-a. Nürnberger G. Quast B. Renk E. Rohne H.-g. Sander S. Schmeling H. Wachsmuth C. Zeitnitz T. Ziegler A. Bonissent J. Carr P. Coyle C. Curtil A. Ealet D. Fouchez O. Leroy T. Kachelhoffer P. Payre D. Rousseau A. Tilquin M. Aleppo S. Gilardoni F. Ragusa A. David H. Dietl G. Ganis A. Heister K. Hüttmann G. Lütjens C. Mannert W. Männer H.-g. Moser S. Schael R. Settles H. Stenzel G. Wolf J. Boucrot O. Callot M. Davier L. Duflot J.-f. Grivaz Ph. Heusse A. Jacholkowska L. Serin J.-j. Veillet I. Videau J.-b. De Vivie De Régie C. Yuan D. Zerwas G. Bagliesi T. Boccali G. Calderini V. Ciulli L. Foà A. Giammanco A. Giassi F. Ligabue A. Messineo F. Palla G. Sanguinetti A. Sciabà G. Sguazzoni R. Tenchini A. Venturi P.g. Verdini G.a. Blair J. Coles G. Cowan M.g. Green L.t. Jones T. Medcalf J.a. Strong R.w. Clifft T.r. Edgecock P.r. Norton I.r. Tomalin B. Bloch-devaux D. Boumediene P. Colas B. Fabbro E. Lançon M.-c. Lemaire E. Locci P. Perez J. Rander J.-f. Renardy A. Rosowsky P. Seager A. Trabelsi B. Tuchming B. Vallage N. Konstantinidis C. Loomis A.m. Litke G. Taylor C.n. Booth S. Cartwright F. Combley P.n. Hodgson M. Lehto L.f. Thompson K. Affholderbach A. Böhrer S. Brandt C. Grupen J. Hess A. Misiejuk G. Prange U. Sieler C. Borean G. Giannini B. Gobbo H. He J. Putz J. Rothberg S. Wasserbaech S.r. Armstrong K. Cranmer P. Elmer D.p.s. Ferguson Y. Gao S. González O.j. Hayes H. Hu S. Jin J. Kile P.a. Mcnamara Iii J. Nielsen W. Orejudos Y.b. Pan Y. Saadi I.j. Scott J.h. Von Wimmersperg-toeller J. Walsh W. Wiedenmann J. Wu Sau Lan Wu X. Wu G. Zobernig

subject

Physics Nuclear and High Energy Physics Particle physics 010308 nuclear & particles physics Electron–positron annihilation High Energy Physics::Phenomenology Gaugino FOS: Physical sciences Supersymmetry 01 natural sciences High Energy Physics - Experiment Nuclear physics High Energy Physics - Experiment (hep-ex)Pair production Chargino Sfermion 0103 physical sciences Neutralino Higgs boson [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::Experiment 010306 general physics Particle Physics - Experiment

description

Searches for pair production of squarks, sleptons, charginos, and neutralinos are performed with the data collected by the ALEPH detector at LEP at centre-of-mass energies from 188.6 to 201.6 GeV. No evidence for any such signals is observed in a total integrated luminosity of about 410pb-1. The negative results of the searches are translated into exclusion domains in the space of the relevant MSSM parameters, which improve significantly on the constraints set previously. Under the assumptions of gaugino and sfermion mass unification, these results allow a 95% C.L. lower limit of 37GeV/c2 to be set on the mass of the lightest neutralino for any tan beta and sfermion mass. Additional constraints in the MSSM parameter space are derived from the negative results of ALEPH searches for Higgs bosons. The results are also interpreted in the framework of minimal supergravity.

year	journal	country	edition	language
2000-11-15

https://dx.doi.org/10.48550/arxiv.hep-ex/0011047