Search for Higgs bosons and other massive states decaying into two photons in e+e− collisions at 189 GeV

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ID: 269433
1999
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Abstract
A search is described for the generic process e+e−→XY, where X is a neutral heavy scalar boson decaying into a pair of photons, and Y is a neutral heavy boson (scalar or vector) decaying into a fermion pair. The search is motivated mainly by the cases where either X, or both X and Y, are Higgs bosons. In particular, we investigate the case where X is the Standard Model Higgs boson and Y the Z0 boson. Other models with enhanced Higgs boson decay couplings to photon pairs are also considered. The present search combines the data set collected by the OPAL collaboration at 189 GeV collider energy, having an integrated luminosity of 182.6 pb−1, with data samples collected at lower energies. The search results have been used to put 95% confidence level bounds, as functions of the mass MX, on the product of the cross-section and the relevant branching ratios, both in a model independent manner and for the particular models considered.
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Authors Giovanni Abbiendi,K Ackerstaff,G Alexander,J Allison,N Altekamp,K.J Anderson,S Anderson,S Arcelli,S Asai,S.F Ashby,D Axen,Georges Azuelos,A.H Ball,E Barberio,R.J Barlow,J.R Batley,S Baumann,J Bechtluft,T Behnke,K.W Bell,Gideon Bella,A Bellerive,S Bentvelsen,S Bethke,S Betts,O Biebel,A Biguzzi,I.J Bloodworth,P Bock,J Böhme,D Bonacorsi,M Boutemeur,S Braibant,P Bright-Thomas,L Brigliadori,R.M Brown,H.J Burckhart,P Capiluppi,R.K Carnegie,A.A Carter,J.R Carter,C.Y Chang,D.G Charlton,D Chrisman,C Ciocca,P.E.L Clarke,E Clay,I Cohen,J.E Conboy,O.C Cooke,J Couchman,C Couyoumtzelis,R.L Coxe,M Cuffiani,S Dado,G.M Dallavalle,R Davis,Sijbrand de Jong,A De Roeck,P Dervan,K Desch,B Dienes,M.S Dixit,J Dubbert,E Duchovni,G Duckeck,I.P Duerdoth,P.G Estabrooks,E Etzion,F Fabbri,A Fanfani,M Fanti,A.A Faust,Lutz Feld,F Fiedler,M Fierro,I Fleck,A Frey,A Fürtjes,D.I Futyan,P Gagnon,J.W Gary,G Gaycken,C Geich-Gimbel,Paolo Giacomelli,V Gibson,W.R Gibson,D.M Gingrich,D Glenzinski,J Goldberg,W Gorn,Claudio Grandi,K Graham,E Gross,J Grunhaus,M Gruwé,C Hajdu,G.G Hanson,M Hansroul,M Hapke,K Harder,A Harel,C.K Hargrove,M Harin-Dirac,Michael Hauschild,C.M Hawkes,R Hawkings,R.J Hemingway,G Herten,R.D Heuer,M.D Hildreth,J.C Hill,Peter Hobson,A Hocker,K Hoffman,R.J Homer,A.K Honma,D Horváth,K.R Hossain,R Howard,P Hüntemeyer,P Igo-Kemenes,D.C Imrie,K Ishii,F.R Jacob,A Jawahery,H Jeremie,M Jimack,C.R Jones,P Jovanovic,T.R Junk,N Kanaya,J Kanzaki,Dean Karlen,V Kartvelishvili,Kiyotomo Kawagoe,T Kawamoto,P.I Kayal,Richard Keeler,R.G Kellogg,B.W Kennedy,D.H Kim,A Klier,T Kobayashi,M Kobel,T.P Kokott,M Kolrep,S Komamiya,Robert Kowalewski,T Kress,P Krieger,J Von Krogh,T Kuhl,Paul Kyberd,George Lafferty,H Landsman,D Lanske,J Lauber,I Lawson,J.G Layter,D Lellouch,J Letts,L Levinson,R Liebisch,B List,C Littlewood,A.W Lloyd,Stephen Lloyd,F.K Loebinger,G.D Long,M.J Losty,J Lu,J Ludwig,D Liu,A Macchiolo,A Macpherson,W Mader,M Mannelli,S Marcellini,A.J Martin,J.P Martin,G Martinez,T Mashimo,P Mättig,W.J McDonald,J McKenna,E.A Mckigney,T.J McMahon,Robert McPherson,F Meijers,P Mendez-Lorenzo,F.S Merritt,H Mes,A Michelini,Satoshi Mihara,G Mikenberg,D.J Miller,W Mohr,A Montanari,T Mori,K Nagai,I Nakamura,H.A Neal,R Nisius,S.W O'Neale,F.G Oakham,F Odorici,H.O Ogren,A Okpara,M.J Oreglia,S Orito,G Pásztor,J.R Pater,G.N Patrick,J Patt,R Perez-Ochoa,S Petzold,P Pfeifenschneider,J.E Pilcher,J Pinfold,D.E Plane,P Poffenberger,B Poli,J Polok,Mariusz Przybycien,A Quadt,C Rembser,H Rick,S Robertson,S.A Robins,N Rodning,J.M Roney,S Rosati,K Roscoe,A.M Rossi,Y Rozen,K Runge,O Runolfsson,D.R Rust,Kirsten Sachs,T Saeki,O Sahr,W.M Sang,E.K.G Sarkisyan,C Sbarra,A.D Schaile,O Schaile,P Scharff-Hansen,J Schieck,Stefan Schmitt,A Schöning,M Schröder,M Schumacher,C Schwick,W.G Scott,R Seuster,Tara Shears,B.C Shen,C.H Shepherd-Themistocleous,P Sherwood,G.P Siroli,A Sittler,A Skuja,A.M Smith,G.A Snow,R Sobie,Stefan Soldner-Rembold,Stefania Spagnolo,M Sproston,Achim Stahl,K Stephens,J Steuerer,K Stoll,D Strom,R Ströhmer,B Surrow,S.D Talbot,P Taras,S Tarem,R Teuscher,M Thiergen,J Thomas,M.A Thomson,E Torrence,S Towers,I Trigger,Z Trócsányi,E Tsur,A.S Turcot,M.F Turner-Watson,I Ueda,R Van Kooten,P Vannerem,M Verzocchi,H Voss,F Wäckerle,A Wagner,C.P Ward,D.R Ward,Peter Watkins,A.T Watson,Nigel Watson,P.S Wells,N Wermes,D Wetterling,J.S White,Graham Wilson,J.A Wilson,T.R Wyatt,S Yamashita,V Zacek,D Zer-Zion;Giovanni Abbiendi;K Ackerstaff;G Alexander;J Allison;N Altekamp;K.J Anderson;S Anderson;S Arcelli;S Asai;S.F Ashby;D Axen;Georges Azuelos;A.H Ball;E Barberio;R.J Barlow;J.R Batley;S Baumann;J Bechtluft;T Behnke;K.W Bell;Gideon Bella;A Bellerive;S Bentvelsen;S Bethke;S Betts;O Biebel;A Biguzzi;I.J Bloodworth;P Bock;J Böhme;D Bonacorsi;M Boutemeur;S Braibant;P Bright-Thomas;L Brigliadori;R.M Brown;H.J Burckhart;P Capiluppi;R.K Carnegie;A.A Carter;J.R Carter;C.Y Chang;D.G Charlton;D Chrisman;C Ciocca;P.E.L Clarke;E Clay;I Cohen;J.E Conboy;O.C Cooke;J Couchman;C Couyoumtzelis;R.L Coxe;M Cuffiani;S Dado;G.M Dallavalle;R Davis;Sijbrand de Jong;A De Roeck;P Dervan;K Desch;B Dienes;M.S Dixit;J Dubbert;E Duchovni;G Duckeck;I.P Duerdoth;P.G Estabrooks;E Etzion;F Fabbri;A Fanfani;M Fanti;A.A Faust;Lutz Feld;F Fiedler;M Fierro;I Fleck;A Frey;A Fürtjes;D.I Futyan;P Gagnon;J.W Gary;G Gaycken;C Geich-Gimbel;Paolo Giacomelli;V Gibson;W.R Gibson;D.M Gingrich;D Glenzinski;J Goldberg;W Gorn;Claudio Grandi;K Graham;E Gross;J Grunhaus;M Gruwé;C Hajdu;G.G Hanson;M Hansroul;M Hapke;K Harder;A Harel;C.K Hargrove;M Harin-Dirac;Michael Hauschild;C.M Hawkes;R Hawkings;R.J Hemingway;G Herten;R.D Heuer;M.D Hildreth;J.C Hill;Peter Hobson;A Hocker;K Hoffman;R.J Homer;A.K Honma;D Horváth;K.R Hossain;R Howard;P Hüntemeyer;P Igo-Kemenes;D.C Imrie;K Ishii;F.R Jacob;A Jawahery;H Jeremie;M Jimack;C.R Jones;P Jovanovic;T.R Junk;N Kanaya;J Kanzaki;Dean Karlen;V Kartvelishvili;Kiyotomo Kawagoe;T Kawamoto;P.I Kayal;Richard Keeler;R.G Kellogg;B.W Kennedy;D.H Kim;A Klier;T Kobayashi;M Kobel;T.P Kokott;M Kolrep;S Komamiya;Robert Kowalewski;T Kress;P Krieger;J Von Krogh;T Kuhl;Paul Kyberd;George Lafferty;H Landsman;D Lanske;J Lauber;I Lawson;J.G Layter;D Lellouch;J Letts;L Levinson;R Liebisch;B List;C Littlewood;A.W Lloyd;Stephen Lloyd;F.K Loebinger;G.D Long;M.J Losty;J Lu;J Ludwig;D Liu;A Macchiolo;A Macpherson;W Mader;M Mannelli;S Marcellini;A.J Martin;J.P Martin;G Martinez;T Mashimo;P Mättig;W.J McDonald;J McKenna;E.A Mckigney;T.J McMahon;Robert McPherson;F Meijers;P Mendez-Lorenzo;F.S Merritt;H Mes;A Michelini;Satoshi Mihara;G Mikenberg;D.J Miller;W Mohr;A Montanari;T Mori;K Nagai;I Nakamura;H.A Neal;R Nisius;S.W O'Neale;F.G Oakham;F Odorici;H.O Ogren;A Okpara;M.J Oreglia;S Orito;G Pásztor;J.R Pater;G.N Patrick;J Patt;R Perez-Ochoa;S Petzold;P Pfeifenschneider;J.E Pilcher;J Pinfold;D.E Plane;P Poffenberger;B Poli;J Polok;Mariusz Przybycien;A Quadt;C Rembser;H Rick;S Robertson;S.A Robins;N Rodning;J.M Roney;S Rosati;K Roscoe;A.M Rossi;Y Rozen;K Runge;O Runolfsson;D.R Rust;Kirsten Sachs;T Saeki;O Sahr;W.M Sang;E.K.G Sarkisyan;C Sbarra;A.D Schaile;O Schaile;P Scharff-Hansen;J Schieck;Stefan Schmitt;A Schöning;M Schröder;M Schumacher;C Schwick;W.G Scott;R Seuster;Tara Shears;B.C Shen;C.H Shepherd-Themistocleous;P Sherwood;G.P Siroli;A Sittler;A Skuja;A.M Smith;G.A Snow;R Sobie;Stefan Soldner-Rembold;Stefania Spagnolo;M Sproston;Achim Stahl;K Stephens;J Steuerer;K Stoll;D Strom;R Ströhmer;B Surrow;S.D Talbot;P Taras;S Tarem;R Teuscher;M Thiergen;J Thomas;M.A Thomson;E Torrence;S Towers;I Trigger;Z Trócsányi;E Tsur;A.S Turcot;M.F Turner-Watson;I Ueda;R Van Kooten;P Vannerem;M Verzocchi;H Voss;F Wäckerle;A Wagner;C.P Ward;D.R Ward;Peter Watkins;A.T Watson;Nigel Watson;P.S Wells;N Wermes;D Wetterling;J.S White;Graham Wilson;J.A Wilson;T.R Wyatt;S Yamashita;V Zacek;D Zer-Zion;
Journal physics letters b
Year 1999
DOI 10.1016/s0370-2693(99)00861-8
URL
https://sciprofiles.com/publication/view/b39440eff359c29272e7a5719e4fc4d0
Keywords
models neutral functions higgs boson gev photons heavy scalar

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