Search for a heavy Standard Model Higgs boson in the channel H → ZZ → l+l- q(q)over-bar using the ATLAS detector

被引：19

作者：

Aad, G. ^{[1
]}

Abbott, B. ^{[148
]}

Abdallah, J. J. ^{[17
,18
,19
]}

Abdelalim, A. A. ^{[70
]}

Abdesselam, A. ^{[156
]}

Abdinov, O. ^{[16
]}

Abi, B. ^{[149
]}

Abolins, M. ^{[122
]}

Abramowicz, H. ^{[206
]}

Abreu, H. ^{[152
,153
]}

Acerbi, E. ^{[123
,124
]}

Acharya, B. S. ^{[219
,220
]}

Adams, D. L. ^{[38
]}

Addy, T. N. ^{[82
]}

Adelman, J. ^{[235
]}

Aderholz, M. ^{[134
]}

Adomeit, S. ^{[133
]}

Adragna, P. ^{[106
]}

Adye, T. ^{[171
]}

Aefsky, S. ^{[35
]}

Aguilar-Saavedra, J. A. ^{[164
,165
,166
]}

Aharrouche, M. ^{[114
]}

Ahlen, S. P. ^{[34
]}

Ahles, F. ^{[1
]}

Ahmad, A. ^{[201
]}

Ahsan, M. ^{[62
]}

Aielli, G. ^{[176
,177
]}

Akdogan, T. ^{[28
]}

Akesson, T. P. A. ^{[112
]}

Akimoto, G. ^{[208
,209
]}

Akimov, A. V. ^{[129
]}

Akiyama, A. ^{[95
]}

Alam, M. S. ^{[2
]}

Alam, M. A. ^{[107
]}

Albert, J. ^{[229
]}

Albrand, S. ^{[79
,80
,81
]}

Aleksa, M. ^{[44
]}

Aleksandrov, I. N. ^{[93
]}

Alessandria, F. ^{[123
]}

Alexa, C. ^{[39
]}

Alexander, G. ^{[206
]}

Alexandre, G. ^{[70
]}

Alexopoulos, T. ^{[15
]}

Alhroob, M. ^{[33
]}

Aliev, M. ^{[24
]}

Alimonti, G. ^{[123
]}

Alison, J. ^{[159
]}

Aliyev, M. ^{[16
]}

Allport, P. P. ^{[103
]}

Allwood-Spiers, S. E. ^{[77
]}

机构：

[1] Univ Freiburg, Fak Math & Phys, Hugstetter Str 55, D-79106 Freiburg, Germany

[2] SUNY Albany, Albany, NY 12222 USA

[3] Univ Alberta, Dept Phys, Edmonton, AB, Canada

[4] Ankara Univ, Dept Phys, TR-06100 Ankara, Turkey

[5] Dumlupinar Univ, Dept Phys, Kutahya, Turkey

[6] Gazi Univ, Dept Phys, Ankara, Turkey

[7] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkey

[8] Turkish Atom Energy Commiss, Ankara, Turkey

[9] CNRS IN2P3, LAPP, Annecy Le Vieux, France

[10] Univ Savoie, Annecy Le Vieux, France

[11] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 USA

[12] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[13] Univ Texas Arlington, Dept Phys, Arlington, TX 76019 USA

[14] Univ Athens, Dept Phys, Athens, Greece

[15] Natl Tech Univ Athens, Dept Phys, GR-15773 Zografos, Greece

[16] Azerbaijan Acad Sci, Inst Phys, Baku 370143, Azerbaijan

[17] Univ Autonoma Barcelona, Inst Fis Altes Energies, E-08193 Barcelona, Spain

[18] Univ Autonoma Barcelona, Dept Fis, E-08193 Barcelona, Spain

[19] ICREA, Barcelona, Spain

[20] Univ Belgrade, Inst Phys, Belgrade, Serbia

[21] Vinca Inst Nucl Sci, Belgrade, Serbia

[22] Univ Bergen, Dept Phys & Technol, Bergen, Norway

[23] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Div Phys, Berkeley, CA 94720 USA

[24] Humboldt Univ, Dept Phys, Berlin, Germany

[25] Univ Bern, Albert Einstein Ctr Fundamental Phys, Bern, Switzerland

[26] Univ Bern, High Energy Phys Lab, Bern, Switzerland

[27] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

[28] Bogazici Univ, Dept Phys, Istanbul, Turkey

[29] Dogus Univ, Div Phys, Istanbul, Turkey

[30] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkey

[31] Ist Nazl Fis Nucl, Sez Bologna, I-40126 Bologna, Italy

[32] Univ Bologna, Dipartimento Fis, Bologna, Italy

[33] Univ Bonn, Inst Phys, Bonn, Germany

[34] Boston Univ, Dept Phys, Boston, MA 02215 USA

[35] Brandeis Univ, Dept Phys, Waltham, MA 02254 USA

[36] Univ Fed Rio de Janeiro, COPPE, BR-21945 Rio De Janeiro, Brazil

[37] Univ Sao Paulo, Inst Fis, BR-01498 Sao Paulo, Brazil

[38] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[39] Natl Inst Phys & Nucl Engn, Bucharest, Romania

[40] Univ Politehn Bucuresti, Bucharest, Romania

[41] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[42] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[43] Carleton Univ, Dept Phys, Ottawa, ON K1S 5B6, Canada

[44] CERN, Geneva, Switzerland

[45] Univ Chicago, Enrico Fermi Inst, Chicago, IL 60637 USA

[46] Pontificia Univ Catolica Chile, Dept Fis, Santiago, Chile

[47] Univ Tecn Federico Santa Maria, Dept Fis, Valparaiso, Chile

[48] Chinese Acad Sci, Inst High Energy Phys, Beijing, Peoples R China

[49] Univ Sci & Technol China, Dept Modern Phys, Hefei, Anhui, Peoples R China

[50] Nanjing Univ, Dept Phys, Nanjing, Jiangsu, Peoples R China

来源：

PHYSICS LETTERS B | 2012年 / 707卷 / 01期

基金：

美国国家科学基金会; 加拿大自然科学与工程研究理事会; 巴西圣保罗研究基金会;

关键词：

Standard Model Higgs boson; ATLAS; PARTON DISTRIBUTIONS; MASSES; DECAY;

D O I：

10.1016/j.physletb.2011.11.056

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A search for a heavy Standard Model Higgs boson decaying via H -> ZZ -> l(+)l(-)q (q) over bar, where l = e, mu, is presented. The search is performed using a data set of pp collisions at root s = 7 TeV, corresponding to an integrated luminosity of 1.04 fb(-1) collected in 2011 by the ATLAS detector at the CERN LHC collider. No significant excess of events above the estimated background is found. Upper limits at 95% confidence level on the production cross section (relative to that expected from the Standard Model) of a Higgs boson with a mass in the range between 200 and 600 GeV are derived. Within this mass range, there is at present insufficient sensitivity to exclude a Standard Model Higgs boson. For a Higgs boson with a mass of 360 GeV, where the sensitivity is maximal, the observed and expected cross section upper limits are factors of 1.7 and 2.7, respectively, larger than the Standard Model prediction. (C) 2011 CERN. Published by Elsevier B.V. All rights reserved.

引用

页码：27 / 45

页数：19

共 52 条

[1]

Aad G, 2011, EUR PHYS J C, V71, DOI 10.1140/epjc/s10052-011-1728-9

[2] Search for the standard model Higgs boson at LEP [J].

Abbaneo, D ;

Abbiendi, G ;

Barate, R ;

Heister, A ;

Schael, S ;

Barate, R ;

Bruneliere, R ;

De Bonis, I ;

Decamp, D ;

Goy, C ;

Jezequel, S ;

Lees, JP ;

Martin, F ;

Merle, E ;

Minard, MN ;

Pietrzyk, B ;

Trocme, B ;

Boix, G ;

Bravo, S ;

Casado, MP ;

Chmeissani, M ;

Crespo, JM ;

Fernandez, E ;

Fernandez-Bosman, M ;

Garrido, L ;

Grauges, E ;

Lopez, J ;

Martinez, M ;

Merino, G ;

Miquel, R ;

Mir, LM ;

Pacheco, A ;

Paneque, D ;

Ruiz, H ;

Colaleo, A ;

Creanza, D ;

De Filippis, N ;

de Palma, M ;

Iaselli, G ;

Maggi, G ;

Maggi, M ;

Nuzzo, S ;

Ranieri, A ;

Raso, G ;

Ruggieri, F ;

Selvaggi, G ;

Silvestris, L ;

Tempesta, P ;

Tricomi, A ;

Zito, G .

PHYSICS LETTERS B, 2003, 565 (1-4) :61-75

[3] NLO electroweak corrections to Higgs boson production at hadron colliders [J].

Actis, Stefano ;

Passarino, Giampiero ;

Sturm, Christian ;

Uccirati, Sandro .

PHYSICS LETTERS B, 2008, 670 (01) :12-17

[4] Two-loop light fermion contribution to Higgs production and decays [J].

Aglietti, U ;

Bonciani, R ;

Degrassi, G ;

Vicini, A .

PHYSICS LETTERS B, 2004, 595 :432-441

[5]

Alekhin S, 2011, ARXIV11010536

[6] HATHOR - HAdronic Top and Heavy quarks crOss section calculatoR [J].

Aliev, M. ;

Lacker, H. ;

Langenfeld, U. ;

Moch, S. ;

Uwer, P. ;

Wiedermann, M. .

COMPUTER PHYSICS COMMUNICATIONS, 2011, 182 (04) :1034-1046

[7] NLO Higgs boson production via gluon fusion matched with shower in POWHEG [J].

Alioli, Simone ;

Nason, Paolo ;

Oleari, Carlo ;

Re, Emanuele .

JOURNAL OF HIGH ENERGY PHYSICS, 2009, (04)

[8] Higgs boson production at hadron colliders in NNLO QCD [J].

Anastasiou, C ;

Melnikov, K .

NUCLEAR PHYSICS B, 2002, 646 (1-2) :220-256

[9]

Anastasiou C., 2011, ARXIV11070683

[10] Mixed QCD-electroweak corrections to Higgs boson production in gluon fusion [J].

Anastasiou, Charalampos ;

Boughezal, Radja ;

Petriello, Frank .

JOURNAL OF HIGH ENERGY PHYSICS, 2009, (04)

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