Search for doubly-charged Higgs bosons at LEP RID C-2983-2009 RID C-4549-2008 RID C-5719-2008

P Achard,O Adriani,M Aguilar Benitez,J Alcaraz,G Alemanni,J Allaby,A Aloisio,Mg Alviggi,H Anderhub,Vp Andreev,F Anselmo,A Arefiev,T Azemoon,T Aziz,P Bagnaia,A Bajo,G Baksay,L Baksay,Sv Baldew,S Banerjee,A Barczyk,R Barillere,P Bartalini,M Basile,N Batalova,R Battiston,A Bay,F Becattini,U Becker,F Behner,L Bellucci,R Berbeco,J Berdugo,P Berges,B Bertucci,Bl Betev,M Biasini,M Biglietti,A Biland,Jj Blaising,Sc Blyth,Gj Bobbink,A Bohm,L Boldizsar,B Borgia,S Bottai,D Bourilkov,M Bourquin,S Braccini,Jg Branson,F Brochu,Jd Burger,Wj Burger,Xd Cai,M Capell,Gc Romeo,G Carlino,A Cartacci,J Casaus,F Cavallari,N Cavallo,C Cecchi,M Cerrada,M Chamizo,Yh Chang,M Chemarin,A Chen,G Chen,Gm Chen,Hf Chen,Hs Chen,G Chiefari,L Cifarelli,F Cindolo,I Clare,R Clare,G Coignet,N Colino,S Costantini,B de la Cruz,S Cucciarelli,van Dalen Ja,R de Asmundis,P Deglon,J Debreczeni,A Degre,K Dehmelt,K Deiters,D della Volpe,E Delmeire,P Denes,Francesco De Notaristefani,A De Salvo,M Diemoz,M Dierckxsens,C Dionisi,M Dittmar,A Doria,Mt Dova,D Duchesneau,M Duda,B Echenard,A Eline,A El Hage,H El Mamouni,A Engler,Fj Eppling,P Extermann,Ma Falagan,S Falciano,A Favara,J Fay,O Fedin,M Felcini,T Ferguson,H Fesefeldt,E Fiandrini,Jh Field,F Filthaut,Ph Fisher,W Fisher,I Fisk,G Forconi,K Freudenreich,C Furetta,Y Galaktionov,Sn Ganguli,P Garcia Abia,M Gataullin,S Gentile,S Giagu,Zf Gong, F Greco,G Grenier,O Grimm,Mw Gruenewald,M Guida,R van Gulik,Vk Gupta,A Gurtu,Lj Gutay,D Haas,D Hatzifotiadou,T Hebbeker,A Herve,J Hirschfelder,H Hofer,M Hohlmann,G Holzner, Hou,Y Hu,Bn Jin,Lw Jones,P de Jong,I Josa Mutuberria,D Kafer,M Kaur, Kienzle Focacci Mn,Jk Kim,J Kirkby,W Kittel,A Klimentov,Ac Konig,M Kopal, Koutsenko,M Kraber,Rw Kraemer,A Kruger,A Kunin,de Guevara Pl,I Laktineh,G Landi,M Lebeau,A Lebedev,P Lebrun,P Lecomte,P Lecoq,P Le Coultre,Le Goff Jm,R Leiste,M Levtchenko,P Levtchenko,C Li,S Likhoded,Ch Lin,Wt Lin,Fl Linde,L Lista,Za Liu,W Lohmann,E Longo,Ys Lu,C Luci,L Luminari,W Lustermann,Wg Ma,L Malgeri,A Malinin,C Mana,J Mans,Jp Martin,F Marzano,K Mazumdar,Rr Mcneil,S Mele,L Merola,M Meschini,Wj Metzger,A Mihul,H Milcent,G Mirabelli,J Mnich,Gb Mohanty,Gs Muanza,Ajm Muijs,B Musicar,M Musy,S Nagy,S Natale,M Napolitano,F Nessi Tedaldi,H Newman,A Nisati,T Novak,H Nowak,R Ofierzynski,G Organtini,I Pal,C Palomares,P Paolucci,R Paramatti,G Passaleva,S Patricelli,T Paul,M Pauluzzi,C Paus,F Pauss,M Pedace,S Pensotti,D Perret Gallix,B Petersen,D Piccolo,F Pierella,M Pioppi,Pa Piroue,E Pistolesi, Plyaskin,M Pohl, Pojidaev,J Pothier,D Prokofiev,J Quartieri,G Rahal Callot,Ma Rahaman,P Raics,N Raja,R Ramelli,Pg Rancoita,R Ranieri,A Raspereza,P Razis,D Ren,M Rescigno,S Reucroft,S Riemann,K Riles,Bp Roe,L Romero,A Rosca,C Rosenbleck, S Rosier Lees,S Roth,Ja Rubio,G Ruggiero,H Rykaczewski,A Sakharov,S Saremi,S Sarkar,J Salicio,E Sanchez,C Schafer, Schegelsky,H Schopper,Dj Schotanus,C Sciacca,L Servoli,S Shevchenko,N Shivarov, Shoutko,E Shumilov,A Shvorob,D Son,C Souga,P Spillantini,M Steuer,Dp Stickland,B Stoyanov,A Straessner,K Sudhakar,G Sultanov,Lz Sun,S Sushkov,H Suter,Jd Swain,Z Szillasi,Xw Tang,P Tarjan,L Tauscher,L Taylor,B Tellili,D Teyssier,C Timmermans,Scc Ting,Sm Ting,Sc Tonwar,J Toth,C Tully,Kl Tung,J Ulbricht,E Valente,Van de Walle Rt,R Vasquez, Veszpremi,G Vesztergombi,I Vetlitsky,D Vicinanza,G Viertel,S Villa,M Vivargent,S Vlachos,I Vodopianov,H Vogel,H Vogt,I Vorobiev,Aa Vorobyov,M Wadhwa,Q Wang,Xl Wang,Zm Wang,M Weber,P Wienemann,H Wilkens,S Wynhoff,L Xia,Zz Xu,J Yamamoto,Bz Yang,Cg Yang,Hj Yang,M Yang,Sc Yeh,A Zalite,Y Zalite,Zp Zhang,J Zhao,Gy Zhu,Ry Zhu,Hl Zhuang,A Zichichi,B Zimmermann,M. Zoller

Physics Letters B（2003）

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摘要

Doubly-charged Higgs bosons are searched for in e+e− collision data collected with the L3 detector at LEP at centre-of-mass energies up to 209 GeV. Final states with four leptons are analysed to tag the pair-production of doubly-charged Higgs bosons. No significant excess is found and lower limits at 95% confidence level on the doubly-charged Higgs boson mass are derived. They vary from 95.5 to 100.2 GeV, depending on the decay mode. Doubly-charged Higgs bosons which couple to electrons would modify the cross section and forward–backward asymmetry of the e+e−→e+e− process. The measurements of these quantities do not deviate from the Standard Model expectations and doubly-charged Higgs bosons with masses up to the order of a TeV are excluded.

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关键词

higgs bosons,doubly-charged

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