Search for the Standard Model Higgs Boson in the Decay Channel H→ZZ→4l in pp Collisions at √s=7 TeV

S. Chatrchyan, V. Khachatryan,A. M. Sirunyan, A. Tumasyan,W. Adam, T. Bergauer, M. Dragicevic, J. Erö, C. Fabjan, M. Friedl, R. Frühwirth,V. M. Ghete,J. Hammer,M. Hoch,N. Hörmann, J. Hrubec, M. Jeitler, W. Kiesenhofer,M. Krammer, D. Liko, I. Mikulec,M. Pernicka,B. Rahbaran, C. Rohringer, H. Rohringer, R. Schöfbeck,J. Strauss, A. Taurok, F. Teischinger,P. Wagner,W. Waltenberger, G. Walzel, E. Widl, C. E. Wulz,V. Mossolov, N. Shumeiko,J. Suarez Gonzalez,S. Bansal,L. Benucci,T. Cornelis, E. A. De Wolf, X. Janssen,S. Luyckx, T. Maes,L. Mucibello,S. Ochesanu,B. Roland,R. Rougny, M. Selvaggi,H. Van Haevermaet,P. Van Mechelen,N. Van Remortel,A. Van Spilbeeck, F. Blekman, S. Blyweert, J. D'hondt,R. Gonzalez Suarez, A. Kalogeropoulos,M. Maes, A. Olbrechts,W. Van Doninck,P. Van Mulders,G. P. Van Onsem, I. Villella, O. Charaf, B. Clerbaux,G. De Lentdecker,V. Dero,G. H. Hammad,T. Hreus, A. Léonard, P. E. Marage, L. Thomas,C. Vander Velde, P. Vanlaer,J. Wickens,V. Adler, K. Beernaert, A. Cimmino, S. Costantini,G. Garcia, M. Grunewald,B. Klein,J. Lellouch, A. Marinov, J. Mccartin,A. A. Ocampo Rios,D. Ryckbosch, N. Strobbe, F. Thyssen, M. Tytgat, L. Vanelderen, P. Verwilligen,S. Walsh,E. Yazgan, N. Zaganidis,S. Basegmez,G. Bruno,L. Ceard,J. De Favereau De Jeneret, C. Delaere,T. Du Pree,D. Favart,L. Forthomme, A. Giammanco,G. Grégoire, J. Hollar,V. Lemaitre,J. Liao, O. Militaru,C. Nuttens, D. Pagano,A. Pin,K. Piotrzkowski, N. Schul,N. Beliy,T. Caebergs,E. Daubie,G. A. Alves,M. Correa Martins Junior,D. De Jesus Damiao,T. Martins,M. E. Pol, M. H.G. Souza,W. L. Aldá Júnior,W. Carvalho, A. Custódio, E. M. Da Costa,C. De Oliveira Martins,S. Fonseca De Souza,D. Matos Figueiredo, L. Mundim, H. Nogima, V. Oguri,W. L. Prado Da Silva, A. Santoro,S. M. Silva Do Amaral,L. Soares Jorge,A. Sznajder,T. S. Anjos,C. A. Bernardes, F. A. Dias,T. R. Fernandez Perez Tomei,E. M. Gregores,C. Lagana,F. Marinho,P. G. Mercadante,S. F. Novaes,Sandra S. Padula,V. Genchev, P. Iaydjiev, S. Piperov, M. Rodozov,S. Stoykova, G. Sultanov,V. Tcholakov,R. Trayanov,M. Vutova,A. Dimitrov, R. Hadjiiska, A. Karadzhinova,V. Kozhuharov, L. Litov, B. Pavlov,P. Petkov, J. G. Bian, G. M. Chen, H. S. Chen, C. H. Jiang,D. Liang,S. Liang,X. Meng,J. Tao, J. Wang,X. Wang,Z. Wang, H. Xiao,M. Xu,J. Zang,Z. Zhang, C. Asawatangtrakuldee,Y. Ban,S. Guo, Y. Guo,W. Li,S. Liu,Y. Mao, S. J. Qian,H. Teng,S. Wang,B. Zhu,W. Zou,A. Cabrera,B. Gomez Moreno,A. F. Osorio Oliveros,J. C. Sanabria, N. Godinovic, D. Lelas,R. Plestina, D. Polic,I. Puljak,Z. Antunovic, M. Dzelalija,M. Kovac,V. Brigljevic,S. Duric, K. Kadija, J. Luetic,S. Morovic, A. Attikis, M. Galanti, J. Mousa,C. Nicolaou, F. Ptochos,P. A. Razis,M. Finger, Y. Assran,A. Ellithi Kamel,S. Khalil, M. A. Mahmoud,A. Radi, A. Hektor, M. Kadastik, M. Müntel,M. Raidal, L. Rebane, A. Tiko,V. Azzolini,P. Eerola, G. Fedi, M. Voutilainen, S. Czellar, J. Härkönen,A. Heikkinen, V. Karimäki, R. Kinnunen, M. J. Kortelainen, T. Lampén, K. Lassila-Perini, S. Lehti,T. Lindén, P. Luukka, T. Mäenpää, T. Peltola,E. Tuominen, J. Tuominiemi,E. Tuovinen, D. Ungaro, L. Wendland, K. Banzuzi,A. Korpela, T. Tuuva,D. Sillou, M. Besancon,S. Choudhury,M. Dejardin,D. Denegri,B. Fabbro, J. L. Faure,F. Ferri, S. Ganjour, A. Givernaud, P. Gras,G. Hamel De Monchenault, P. Jarry,E. Locci, J. Malcles,L. Millischer, J. Rander,A. Rosowsky, I. Shreyber,M. Titov,S. Baffioni, F. Beaudette, L. Benhabib,L. Bianchini, M. Bluj,C. Broutin,P. Busson, C. Charlot, N. Daci, T. Dahms,L. Dobrzynski, S. Elgammal,R. Granier De Cassagnac, M. Haguenauer,P. Miné, C. Mironov, C. Ochando, P. Paganini,D. Sabes, R. Salerno, Y. Sirois,C. Thiebaux, C. Veelken, A. Zabi,J. L. Agram,J. Andrea,D. Bloch,D. Bodin,J. M. Brom,M. Cardaci, E. C. Chabert, C. Collard,E. Conte,F. Drouhin,C. Ferro, J. C. Fontaine, D. Gelé, U. Goerlach, P. Juillot,M. Karim,A. C. Le Bihan,P. Van Hove, F. Fassi, D. Mercier,C. Baty,S. Beauceron, N. Beaupere,M. Bedjidian, O. Bondu, G. Boudoul, D. Boumediene, H. Brun,J. Chasserat,R. Chierici,D. Contardo,P. Depasse,H. El Mamouni,A. Falkiewicz,J. Fay,S. Gascon, M. Gouzevitch,B. Ille, T. Kurca, T. Le Grand, M. Lethuillier, L. Mirabito,S. Perries,V. Sordini,S. Tosi, Y. Tschudi,P. Verdier, S. Viret,D. Lomidze,G. Anagnostou,S. Beranek, M. Edelhoff, L. Feld,N. Heracleous, O. Hindrichs,R. Jussen,K. Klein, J. Merz,A. Ostapchuk, A. Perieanu, F. Raupach,J. Sammet,S. Schael,D. Sprenger,H. Weber, B. Wittmer,V. Zhukov,M. Ata, J. Caudron,E. Dietz-Laursonn,M. Erdmann,A. Güth, T. Hebbeker, C. Heide-Mann, K. Hoepfner, T. Klimkovich,D. Klingebiel,P. Kreuzer,D. Lanske, J. Lingemann, C. Magass, M. Merschmeyer,A. Meyer, M. Olschewski,P. Papacz,H. Pieta, H. Reithler,S. A. Schmitz,L. Sonnenschein, J. Steggemann, D. Teyssier, M. Weber, M. Bontenackels, V. Cherepanov,M. Davids, G. Flügge, H. Geenen,M. Geisler,W. Haj Ahmad, F. Hoehle, B. Kargoll, T. Kress,Y. Kuessel, A. Linn,A. Nowack, L. Perchalla, O. Pooth,J. Rennefeld,P. Sauerland,A. Stahl, M. H. Zoeller,M. Aldaya Martin,W. Behrenhoff,U. Behrens,M. Bergholz, A. Bethani, K. Borras, A. Burgmeier,A. Cakir,L. Calligaris,A. Campbell,E. Castro,D. Dammann, G. Eckerlin, D. Eckstein,A. Flossdorf, G. Flucke, A. Geiser, J. Hauk,H. Jung, M. Kasemann, P. Katsas, C. Kleinwort, H. Kluge,A. Knutsson,M. Krämer, D. Krücker,E. Kuznetsova,W. Lange, W. Lohmann,B. Lutz, R. Mankel,I. Marfin,M. Marienfeld,I. A. Melzer-Pellmann,A. B. Meyer, J. Mnich, A. Mussgiller,S. Naumann-Emme,J. Olzem, A. Petrukhin, D. Pitzl, A. Raspereza,P. M. Ribeiro Cipriano,M. Rosin, J. Salfeld-Nebgen,R. Schmidt,T. Schoerner-Sadenius,N. Sen,A. Spiridonov, M. Stein,J. Tomaszewska,R. Walsh, C. Wissing, C. Autermann,V. Blobel,S. Bobrovskyi, J. Draeger, H. Enderle,J. Erfle,U. Gebbert, M. Görner,T. Hermanns, R. S. Höing,K. Kaschube,G. Kaussen,H. Kirschenmann, R. Klanner,J. Lange,B. Mura,F. Nowak,N. Pietsch, C. Sander,H. Schettler, P. Schleper,E. Schlieckau, A. Schmidt,M. Schröder, T. Schum, H. Stadie, G. Steinbrück, J. Thomsen, C. Barth, J. Berger,T. Chwalek,W. De Boer, A. Dierlamm, G. Dirkes, M. Feindt, J. Gruschke, M. Guthoff, C. Hackstein,F. Hartmann, M. Heinrich

user-5ed732bc4c775e09d87b4c18（2012）

引用 231|浏览7

暂无评分

摘要

A search for a Higgs boson in the four-lepton decay channel H→ZZ, with each Z boson decaying to an electron or muon pair, is reported. The search covers Higgs boson mass hypotheses in the range of 110 100 GeV (with 13 below 160 GeV), while 67.1±6.0 (9.5±1.3) events are expected from background. The four-lepton mass distribution is consistent with the expectation of standard model background production of ZZ pairs. Upper limits at 95% confidence level exclude the standard model Higgs boson in the ranges of 134–158 GeV, 180–305 GeV, and 340–465 GeV. Small excesses of events are observed around masses of 119, 126, and 320 GeV, making the observed limits weaker than expected in the absence of a signal.

查看译文

关键词

Higgs boson,Standard Model,Large Hadron Collider,Muon,Hadron,Massless particle,Quantum chromodynamics,Mass distribution,Particle physics,Nuclear physics,Physics

AI 理解论文

溯源树

样例

生成溯源树，研究论文发展脉络

Chat Paper

正在生成论文摘要