Search for the Higgs boson in events with isolated photons at LEP 2

P Abreu,A Stocchi ,A Maio ,I Van Vulpen ,E Vallazza ,B Schwering ,P Jałocha ,J I Yi ,F Fontanelli ,G Vegni ,A Pullia ,M Szczekowski ,M R Monge ,D Gelé ,R Brenner ,D W Lane ,A Behrmann ,P Ronchese ,D Radojičić ,W T Meyer ,M Siebel ,A Galloni ,O Klapp ,M Elsing ,Α Μάρκου ,H Pałka ,R Barbier ,P Andersson ,L Vitale ,M Berggren ,R Mc Nulty ,K Doroba ,H B Crawley ,P Gonçalves ,G Della Ricca ,J P Laugier ,P Sponholz ,I Ajinenko ,J Salt ,Xavier Moreau ,F Mandl ,Y Arnoud ,A Perrotta ,E Zevgolatakos ,A Tomaradze ,R Gokieli ,N Mastroyiannopoulos ,J R Mahon ,H Rahmani ,F Simonetto ,G Borisov ,C Weiser ,R Frühwirth ,A Deghorain ,W Mitaroff ,M Szeptycka ,O Yushchenko ,P Privitera ,D Zavrtanik ,P Roudeau ,M Bozzo ,M Pegoraro ,S Haider ,K Moenig ,M Bigi ,C Bosio ,M L Turluer ,J Lemonne ,C Petridou ,F Barão ,E Boudinov ,B Muryn ,V Lapin ,J P Thomas ,L Carroll ,P N Ratoff ,U Parzefall ,C Joram ,E N Gazis ,J N Jackson ,G Chelkov ,S Němeček ,U Amaldi ,B Tomé ,P Branchini ,G Eigen ,S Paiano ,R Moeller ,D Gamba ,S Squarcia ,M Battaglia ,P Poropat ,F Ferro ,J Krstić ,V Chorowicz ,Kathy Huet ,J Drees ,R Mureşan ,M Verlato ,E Katsoufis ,J Marco ,J Strauss ,P Brückman ,Th D Papadopoulou ,T L Hessing ,C Bourdarios ,M Dris ,E Cortina ,B S Nielsen ,L G Tkatchev ,P Rosinský ,G Grosdidier ,S Maltezos ,H Saarikko ,L De Paula ,R Nicolaidou ,F Mazzucato ,B Buschbeck ,M Koratzinos ,T Brenke ,T Tabarelli ,A M Segar ,G Smadja ,K Muenich ,C Kourkoumelis ,M Moch ,H M Blom ,M A Bizouard ,N Amapane ,M Nikolenko ,G Tristram ,D Loukas ,K Papageorgiou ,G Voulgaris ,D Treille ,U Schwickerath ,C Meroni ,M Günther ,J Fayot ,J R Hansen ,G Matthiae ,V Malychev ,P Chliapnikov ,F Terranova ,G Cosme ,G W Van Apeldoorn ,T Buran ,A De Angelis ,M Houlden ,P Ferrari ,J M Lopez ,C Walck ,N N Khovanski ,W Bonivento ,L Simard ,Erik Johansson ,M Begalli ,G Myatt ,B Erzen ,D Vilanova ,D Blöch ,J J Hernández ,D Sampsonidis ,G Sajot ,L Gorn ,F Ledroit ,W Vénus ,R Strub ,P P Allport ,D Wicke ,P Seager ,L Lyons ,A Petrolini ,P Checchia ,J Chudoba ,G Wolf ,K Nawrocki ,C Royon ,A N Sisakian ,A G Olshevski ,J E Augustin ,B Bouquet ,F Naraghi ,M Pernicka ,F Verbeure ,S Cabrera ,H Foeth ,P Kokkinias ,A Cattai ,M Regler ,A Ferrer ,S R Hahn ,M V Castillo Gimenez ,T Adye ,J H Lopes ,R Chierici ,A Kinvig ,B Loerstad ,A Miagkov ,C Bérat ,R Sosnowski ,Ph Schwemling ,P Beillière ,W De Boer ,P Jarry ,R Contri ,J M Brunet ,A Augustinus ,A L Read ,T Alderweireld ,A Firestone ,E Spiriti ,S Amato ,J M Heuser ,C Caso ,Yu Gouz ,B Franek ,V Obraztsov ,S Sánchez Navas ,T Burgsmueller ,B T King ,R Orava ,A Ruiz ,M Caccia ,V Vrba ,S Heising ,V Uvarov ,G P Gopal ,I Lippi ,P Kluit ,A Lipniacka ,K Stevenson ,A Tonazzo ,G Crosetti ,L Tortora ,N I Zimin ,D Reid ,A Sopczak ,J Mašík ,F Scuri ,V Kostioukhine ,F Fulda-Quenzer ,P Buschmann ,R Leitner ,R C Shellard ,J Van Eldik ,T Camporesi ,F Matorras ,P Renton ,E Križnič ,M A E Schyns ,R Keränen ,K Hultqvist ,S Fichet ,E Falk ,A Nygren ,N J Kjaer ,M Górski ,C Garćıa ,M Gandelman ,G Tranströmer ,S O Holmgren ,F L Navarria ,J Libby ,B De Lotto ,K Karafasoulis ,C Green ,E Migliore ,B Golob ,A De Min ,W K Van Doninck ,L Peralta ,A Sheridan ,G Hughes ,Z Krumstein ,R López-Fernández ,H Schneider ,O Smirnova ,P J Holt ,P Chochula ,R Reinhardt ,G R Smith ,E I Rosenberg ,G Polok ,K Grzelak ,F Glege ,P Baillon ,B Stugu ,C Mariotti ,F R Cavallo ,K Kurvinen ,O Kouznetsov ,O Røhne ,M Paganoni ,M Calvi ,E Piotto ,D Crennell ,L Chaussard ,L Mirabito ,J P Engel ,I Božović ,C De Clercq ,C Gaspar ,M S Bilenky ,V Canale ,P Adžić ,F Richard ,O Tchikilev ,J Dolbeau ,G Valenti ,M Dracos ,G Fanourakis ,H Dijkstra ,V Nomokonov ,B Jean‐Marie ,L Ventura ,L Leinonen ,H Herr ,P Delpierre ,T Lesiak ,V Lepeltier ,M Boonekamp ,J C Marin ,R Pain ,A Onofre ,M Bonesini ,G Ekspong ,S Czellár ,L Pape ,R Mc Kay ,B P Kerševan ,R Alemany ,J Řídký ,E Higón ,E Ferrer‐Ribas ,Yu Belokopytov ,C Troncon ,R Jacobsson ,J D Durand ,S Ragazzi ,P Lutz ,V Lefébure ,E Vlasov ,A Kiiskinen ,C F Vollmer ,A Sadovsky ,R Lauhakangas ,C Stănescu ,M Winter ,Y Sacquin ,V Ruhlmann-Kleider ,A Van Lysebetten ,G W Morton ,A Malek ,O Solovianov ,F Kapusta ,A Hallgren ,V Verzi ,T Myklebust ,T Spassov ,Y Sedykh ,M Esṕırito Santo ,S Gamblin ,M Margoni ,J H Cowell ,A G Frodesen ,G Leder ,W Adam ,F Martínez-Vidal ,V Hedberg ,I A Tyapkin ,C Parkes ,Ph Charpentier ,H J Grimm ,M E Pol ,A Baroncelli ,N Tinti ,P Van Dam ,Ph Gris ,I R Boyko ,T Moa ,L Gerdyukov ,J Loken ,Rui Pedro Paiva ,C Mulet-Marquis ,O Botner ,P Bambade ,F Cossutti ,A Vodopyanov ,S Crépé ,F Hahn ,K H Becks ,G Barbiellini ,S Katsanevas ,V Gracco ,U Muêller ,D Y Bardin ,I González Caballero ,M Baubillier ,N Pukhaeva ,O Passon ,D Bertini ,C Jarlskog ,M Trochimczuk ,G C Zucchelli ,P.s.l Booth ,P Langefeld ,P Rebecchi ,Daniel Bertrand ,T Podobnik ,A Ouraou ,G Gómez-Ceballos ,A W Borgland ,L Di Ciaccio ,G Wilkinson ,E Fokitis ,M Nassiakou ,M Ellert ,M Mc Cubbin ,B Maréchal ,U Mjoernmark ,L Bugge ,J Kurowska ,S Almehed ,G Lenzen ,G Mc Pherson ,M Lethuillier ,K Österberg ,F Pierre ,R Janik ,B A Khomenko ,K Cieślik ,F Tegenfeldt ,G J Barker ,J Fuster ,M Mazzucato ,R Marco ,I Gil ,S Marti-Garcia ,T Rovelli ,M Sannino ,J Grahl ,N Benekos ,M Gaspar ,E Graziani ,M Krammer ,W D Apel ,P Zalewski ,N Ghodbane ,J Timmermans ,D Liko ,M Mulders ,P Kubinec ,N Redaelli ,G Jarlskog ,R Sekulin ,U Gasparini ,P Negri ,P Jönsson ,J Lämsä ,N Vassilopoulos ,W J Murray ,N Van Remortel ,M Besançon ,E Anassontzis ,L S Vertogradov ,M Feindt ,S Hoorelbeke ,H Klein ,A Passeri ,K Hamacher ,F Parodi ,J Macnaughton ,S Stanič ,B Åsman ,Šárka Todorova ,F J Harris ,S Tzamarias ,P Collins ,V Pozdniakov ,T G M Malmgren ,M Witek ,C Martínez-Rivero ,P Herquet ,H T Phillips ,T Allmendinger ,G Orazi ,T J V Bowcock ,A Duperrin ,U Flagmeyer ,Z Albrecht ,G Rinaudo ,J Palacios ,V Chabaud ,Ph Gavillet ,A Romero ,H Wahlen ,M Davenport ,N Neufeld ,J Cuevas Maestro ,A Tsirou ,F Carena ,D Fassouliotis ,P Antilogus ,O Ullaland ,J Hrubec ,P Juillot ,S Andringa ,N Demaria ,M Pimenta ,P Morettini ,T Ekelöf ,J Wickens ,A Normand ,A C Benvenuti ,G D Alekseev ,C Matteuzzi ,W Da Silva ,A Zalewska ,A Andreazza ,L K Resvanis ,J Guy ,A Leisos ,G Zumerle

doi:10.1016/s0370-2693(99)00598-5

Search for the Higgs boson in events with isolated photons at LEP 2

P Abreu, A Stocchi + Show 522 more

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https://doi.org/10.1016/s0370-2693(99)00598-5

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#Search For The Higgs Boson #Higgs Boson In Final States + Show 8 more

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Abstract

A search for the Higgs boson in final states with one, two or three isolated photons has been performed based on data taken at LEP 2 by the DELPHI detector. The data analysed correspond to a total integrated luminosity of 67.5 pb −1 at centre-of-mass energies of 161 GeV (9.7 pb −1), 172 GeV (10.1 pb −1) and 183 GeV (47.7 pb −1). No evidence for the processes e + e −→ Hγ with H→b b ̄ or γγ and e +e −→Hq q ̄ with H→ γγ was observed. Model-independent limits on σ(e +e −→Hγ)×BR(H→b b ̄ ) , σ(e +e −→Hq q ̄ )×BR(H→γγ) and σ( e + e −→ Hγ)× BR( H→ γγ) are set, as well as model-dependent limits on Higgs boson anomalous couplings to vector bosons.

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