Search for an invisibly decaying Higgs boson in e+e-collisions at 189 GeV

6533b835fe1ef96bd12a0114

RESEARCH PRODUCT

Search for an invisibly decaying Higgs boson in e+e-collisions at 189 GeV

R Barate D Decamp P Ghez C Goy S Jezequel J.-p Lees F Martin E Merle M.-n Minard B Pietrzyk R Alemany S Bravo M.p Casado M Chmeissani J.m Crespo E Fernandez M Fernandez-bosman Ll Garrido E Graugès A Juste M Martinez G Merino R Miquel Ll.m Mir P Morawitz A Pacheco I Riu H Ruiz A Colaleo D Creanza 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 U Becker G Boix O Buchmüller M Cattaneo F Cerutti V Ciulli G Dissertori H Drevermann R.w Forty M Frank F Gianotti T.c Greening A.w Halley J.b Hansen J Harvey P Janot B Jost I Lehraus O Leroy 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.e Wright Z Ajaltouni F Badaud G Chazelle O Deschamps S Dessagne A Falvard C Ferdi P Gay C Guicheney P Henrard J Jousset B Michel S Monteil J-c Montret D Pallin P Perret F Podlyski J.d Hansen J.r Hansen P.h Hansen B.s Nilsson B Rensch 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 A Valassi H Videau E Focardi G Parrini K Zachariadou M Corden C Georgiopoulos A 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 L Curtis J.g Lynch P Negus V O'shea B Raeven C Raine D Smith P Teixeira-dias A.s Thompson J.j Ward R Cavanaugh S Dhamotharan C Geweniger P Hanke V Hepp E.e Kluge A Putzer K Tittel S Werner M Wunsch R Beuselinck D.m Binnie W Cameron P.j Dornan M Girone S Goodsir N Marinelli E.b Martin J Nash J Nowell H Przysiezniak A Sciabà J.k Sedgbeer E Thomson M.d Williams V.m Ghete P Girtler E Kneringer D Kuhn G Rudolph C.k Bowdery P.g Buck G Ellis A.j Finch F Foster G Hughes R.w.l Jones N.a Robertson M Smizanska M.i Williams 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 J.j Aubert A Bonissent J Carr P Coyle A Ealet D Fouchez A Tilquin M Aleppo M Antonelli S Gilardoni F Ragusa V Büscher H Dietl G Ganis K Hüttmann G Lütjens C Mannert W Männer H.-g Moser S Schael R Settles H Seywerd H Stenzel W Wiedenmann G Wolf P Azzurri J Boucrot O Callot S Chen M Davier L Duflot J.-f Grivaz Ph Heusse A Jacholkowska M Kado J Lefrançois L Serin J.-j Veillet I Videau J.-b De Vivie De Régie D Zerwas G Bagliesi T Boccali C Bozzi G Calderini R Dell'orso I Ferrante A Giassi A Gregorio F Ligabue P.s Marrocchesi A Messineo F Palla G Rizzo G Sanguinetti G Sguazzoni R Tenchini A Venturi P.g Verdini G.a Blair J Coles G Cowan M.g Green D.e Hutchcroft L.t Jones T Medcalf J.a Strong D.r Botterill R.w Clifft T.r Edgecock P.r Norton J.c Thompson I.r Tomalin B Bloch-devaux P Colas B Fabbro G Faïf E Lançon M.-c Lemaire E Locci P Perez J Rander J.-f Renardy A Rosowsky P Saeger A. Trabelsi B Tuchming B Vallage S.n Black J.h Dann C Loomis H.y Kim N Konstantinidis A.m Litke M.a Mcneil 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 G Giannini B Gobbo J Putz J Rothberg S Wasserbaech R.w Williams S.r Armstrong 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 Walsh J.h Von Wimmersperg-toeller Sau Lan Wu X Wu G Zobernig

subject

Physics Nuclear and High Energy Physics Aleph Particle physics Missing energy [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex]010308 nuclear & particles physics Branching fraction Electron–positron annihilation Electroweak interaction High Energy Physics::Phenomenology 01 natural sciences Standard Model Nuclear physics 0103 physical sciences Higgs boson [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex]High Energy Physics::Experiment Limit (mathematics)010306 general physics Particle Physics - Experiment

description

The data collected in 1998 by ALEPH at LEP at a centre-of-mass energy of 188.6 GeV, corresponding to an integrated luminosity of 176.2 pb(-1), are analysed to search for invisible decays of a Higgs boson produced in the reaction e(+) e(-) --> hZ. The number of events found in the data and their properties art: in agreement with the Standard Model expectation. This search results in an improved 95% C.L. lower limit on the Higgs boson mass of 95.4 GeV/c(2), assuming it decays totally invisibly and for a production cross section equal to that of the Standard Model. (C) 1999 Published by Elsevier Science B.V. All rights reserved.

year	journal	country	edition	language
1999-01-01

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