Combined search for the Higgs boson with the D0 experiment

V M Abazov, B Abbott,B S Acharya,M Adams,Thomas E Adams, G D Alexeev, G Alkhazov,A Alton, A Askew,S Atkins, K Augsten,C Avila,F Badaud,L Bagby, B Baldin,D V Bandurin, S Banerjee,E Barberis, P Baringer,J F Bartlett,U Bassler, V E Bazterra,A Bean,M Begalli, L Bellantoni, S B Beri,G Bernardi, R Bernhard,I Bertram, M Besancon,R Beuselinck,P C Bhat,Sujata K Bhatia,V Bhatnagar,G Blazey,S Blessing,K Bloom,A Boehnlein,D Boline,E E Boos,G Borissov,A Brandt,O Brandt,R Brock,A Bross,D A Brown,X B Bu,M Buehler,V Buescher,V Bunichev,S Burdin, C P Buszello,E Camachoperez,B C K Casey,H Castillavaldez, S Caughron,Sandip K Chakrabarti,D Chakraborty,K M Chan,A Chandra,E Chapon,G Chen, S W Cho,S Choi,B Choudhary, S Cihangir,D Claes,J Clutter, M Cooke,W E Cooper,M Corcoran, F Couderc,M C Cousinou, D Cutts,A Das,G Davies,S J De Jong,E De La Cruzburelo,F Deliot, R Demina,D Denisov,S P Denisov,S Desai,C Deterre,K Devaughan,H T Diehl, M Diesburg,P F Ding,A Dominguez,A K Dubey,L V Dudko,A Duperrin,S Dutt,A Dyshkant, M Eads, D Edmunds,J Ellison, V D Elvira,Y Enari,H Evans,V N Evdokimov,G Facini, A Faure,Lixin Feng, T Ferbel,F Fiedler,F Filthaut, W Fisher,H E Fisk,M Fortner,H Fox,S Fuess, A Garciabellido, J A Garciagonzalez,G A Garciaguerra, V Gavrilov,W Geng, C E Gerber,Y Gershtein,G Ginther,G Golovanov,P D Grannis,S Greder,H Greenlee,G Grenier,Ph Gris,J F Grivaz,A Grohsjean, S Gruenendahl, M W Gruenewald, T Guillemin,G Gutierrez,P Gutierrez, J Haley, L Han, K Harder, A Harel, J M Hauptman, J Hays,T Head, T Hebbeker, D Hedin,H Hegab,A P Heinson, U Heintz,C Hensel,I Herediade La Cruz,K Herner, G Hesketh,M D Hildreth, R Hirosky,T Hoang,J D Hobbs,B Hoeneisen,J Hogan, M Hohlfeld,I Howley, Z Hubacek, V Hynek, I Iashvili,Y Ilchenko,R Illingworth,A S Ito, S Jabeen,M Jaffre,A Jayasinghe,M S Jeong,R Jesik,Ping Jiang,K Johns,Eric C Johnson,Michael K Johnson,A Jonckheere,P Jonsson,Jyoti Joshi,A W Jung,A Juste,E Kajfasz,D Karmanov,I Katsanos, R Kehoe,S Kermiche, N Khalatyan, A Khanov, A Kharchilava,Y N Kharzheev, I Kiselevich, J M Kohli,A V Kozelov, J Kraus,Ashish Kumar, A Kupco, T Kurca,V A Kuzmin,S Lammers, P Lebrun,Ho Seong Lee,S W Lee,W M Lee,X Lei,J Lellouch,D Li,Hongzhe Li,Lin Li,Q Z Li, J K Lim,D Lincoln,J Linnemann,V V Lipaev, R Lipton,Hua Liu,Yunqi Liu, A Lobodenko,M Lokajicek,R Lopes De Sa,R Lunagarcia,A L Lyon, A K A Maciel,R Madar, R Maganavillalba,S Malik, V L Malyshev,J Mansour, J Martinezortega,R Mccarthy,C L Mcgivern,M M Meijer, A Melnitchouk,D Menezes, P G Mercadante,M Merkin, A Meyer,J Meyer,F Miconi,N K Mondal, M Mulhearn,E Nagy,M Naimuddin,M Narain,R Nayyar, H A Neal,J P Negret, P Neustroev,H T Nguyen, T Nunnemann,J Orduna,N Osman,J Osta,M Padilla,A Pal, N Parashar,V Parihar, S K Park,R Partridge,N Parua, A Patwa, B Penning, M Perfilov,Y Peters, K Petridis,G Petrillo,P Petroff, M A Pleier,P L M Podestalerma,V M Podstavkov,A V Popov,M Prewitt,Donald L Price,N Prokopenko,Ji Qian, A Quadt,B Quinn, M S Rangel,P N Ratoff,I Razumov,I Rippbaudot, F Rizatdinova,M Rominsky,Allan M Ross, C Royon, P Rubinov, R Ruchti, G Sajot,P Salcido,A Sanchezhernandez, M P Sanders,A S Santos,G Savage,L Sawyer,T Scanlon, R D Schamberger,Y Scheglov,H Schellman, C Schwanenberger,R Schwienhorst,J Sekaric, H Severini,E Shabalina,V Shary,S Shaw,A A Shchukin, R K Shivpuri, V Simak, P Skubic,P Slattery,D Smirnov, K J Smith, G R Snow, J Snow,Solomon H Snyder, S Soeldnerrembold, L Sonnenschein,K Soustruznik, J Stark,D A Stoyanova, M Strauss,L Suter,P Svoisky,M Titov,V V Tokmenin,Y T Tsai, D Tsybychev,B Tuchming,C Tully, L Uvarov,S Uvarov,S Uzunyan,R Van Kooten,W M Van Leeuwen, N Varelas, E W Varnes,I A Vasilyev,A Y Verkheev,L S Vertogradov,M Verzocchi,M Vesterinen, D Vilanova, P Vokac,H D Wahl,M H L S Wang,R J Wang, J Warchol, George S Watts, M Wayne,J Weichert,L Weltyrieger,A White, D Wicke,M R J Williams,G W Wilson,M Wobisch, D R Wood,Terry Richard Wyatt,Yi Xie,R Yamada,Shengfan Yang,T Yasuda,Y A Yatsunenko,Weiguo Ye,Z Ye, H Yin,K Yip,S W Youn,J M Yu,J Zennamo, T G Zhao,Bing Zhou,Jun Zhu, M Zielinski, D Zieminska,L Zivkovic

PHYSICAL REVIEW D（2013）

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摘要

We perform a combination of searches for standard model Higgs boson production in p (p) over bar collisions recorded by the D0 detector at the Fermilab Tevatron Collider at a center of mass energy of root s = 1.96 TeV. The different production and decay channels have been analyzed separately, with integrated luminosities of up to 9.7 fb(-1) and for Higgs boson masses 90 <= M-H <= 200 GeV. We combine these final states to achieve optimal sensitivity to the production of the Higgs boson. We also interpret the combination in terms of models with a fourth generation of fermions, and models with suppressed Higgs boson couplings to fermions. The result excludes a standard model Higgs boson at 95% C.L. in the ranges 90 < M-H < 101 GeV and 157 < M-H < 178 GeV, with an expected exclusion of 155 < M-H < 175 GeV. In the range 120 < M-H < 145 GeV, the data exhibit an excess over the expected background of up to 2 standard deviations, consistent with the presence of a standard model Higgs boson of mass 125 GeV.

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sensitivity,background,natural sciences

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