Search for an additional, heavy Higgs boson in the H → ZZ decay channel at √s=8 TeV in pp collision data with the ATLAS detector

被引：190

作者：

Aad, G. ^{[120
,121
]}

Abbott, B. ^{[153
]}

Abdallah, J. ^{[213
]}

Abdinov, O. ^{[14
]}

Aben, R. ^{[146
,147
]}

Abolins, M. ^{[126
]}

AbouZeid, O. S. ^{[221
]}

Abramowicz, H. ^{[215
]}

Abreu, H. ^{[214
]}

Abreu, R. ^{[156
]}

Abulaiti, Y. ^{[206
,207
]}

Acharya, B. S. ^{[228
,229
,249
]}

Adamczyk, L. ^{[60
]}

Adams, D. L. ^{[37
]}

Adelman, J. ^{[148
]}

Adomeit, S. ^{[137
]}

Adye, T. ^{[180
]}

Affolder, A. A. ^{[106
]}

Agatonovic-Jovin, T. ^{[17
]}

Agricola, J. ^{[80
]}

Aguilar-Saavedra, J. A. ^{[169
,174
,175
]}

Ahlen, S. P. ^{[31
]}

Ahmadov, F. ^{[14
,95
]}

Aielli, G. ^{[183
,184
]}

Akerstedt, H. ^{[206
,207
]}

Akesson, T. P. A. ^{[116
]}

Akimov, A. V. ^{[133
]}

Alberghi, G. L. ^{[28
,29
]}

Albert, J. ^{[239
]}

Albrand, S. ^{[81
]}

Alconada Verzini, M. J. ^{[101
,102
]}

Aleksa, M. ^{[43
]}

Aleksandrov, I. N. ^{[95
]}

Alexa, C. ^{[38
]}

Alexander, G. ^{[215
]}

Alexopoulos, T. ^{[13
]}

Alhroob, M. ^{[153
]}

Alimonti, G. ^{[127
]}

Alio, L. ^{[120
,121
]}

Alison, J. ^{[44
]}

Alkire, S. P. ^{[56
]}

Allbrooke, B. M. M. ^{[211
]}

Allport, P. P. ^{[106
]}

Aloisio, A. ^{[142
,143
,270
]}

Alonso, A. ^{[57
]}

Alonso, F. ^{[101
,102
]}

Alpigiani, C. ^{[109
]}

Altheimer, A. ^{[56
]}

Gonzalez, B. Alvarez ^{[43
]}

Alvarez Piqueras, D. ^{[233
,234
,235
,236
,237
]}

机构：

[1] Univ Adelaide, Dept Phys, Adelaide, SA, Australia

[2] SUNY Albany, Dept Phys, Albany, NY 12222 USA

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

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

[5] Istanbul Aydin Univ, Istanbul, Turkey

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

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

[8] Univ Savoie Mont Blanc, Annecy Le Vieux, France

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

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

[11] Univ Texas Arlington, Dept Phys, POB 19059, Arlington, TX 76019 USA

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

[13] Natl Tech Univ Athens, Dept Phys, Zografos, Greece

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

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

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

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

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

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

[20] Univ Calif Berkeley, Berkeley, CA 94720 USA

[21] Humboldt Univ, Dept Phys, Invalidenstr 110, Berlin, Germany

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

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

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

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

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

[27] Dogus Univ, Dept Phys, Istanbul, Turkey

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

[29] Univ Bologna, Dipartimento Fis & Astron, Bologna, Italy

[30] Univ Bonn, Inst Phys, Nussallee 12, Bonn, Germany

[31] Boston Univ, Dept Phys, 590 Commonwealth Ave, Boston, MA 02215 USA

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

[33] Univ Fed Rio de Janeiro, COPPE EE IF, Rio De Janeiro, Brazil

[34] Fed Univ Juiz de Fora UFJF, Elect Circuits Dept, Juiz De Fora, Brazil

[35] Fed Univ Sao Joao del Rei UFSJ, Sao Joao Del Rei, Brazil

[36] Univ Sao Paulo, Inst Fis, CP 20516, BR-01498 Sao Paulo, Brazil

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

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

[39] Natl Inst Res & Dev Isotop & Mol Technol, Dept Phys, Cluj Napoca, Romania

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

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

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

[43] CERN, Geneva, Switzerland

[44] Univ Chicago, Enrico Fermi Inst, 5640 S Ellis Ave, Chicago, IL 60637 USA

[45] Pontificia Univ Catolica Chile, Dept Fis, Alameda 340, Santiago, Chile

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

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

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

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

[50] Shandong Univ, Sch Phys, Jinan, Shandong, Peoples R China

来源：

EUROPEAN PHYSICAL JOURNAL C | 2016年 / 76卷 / 01期

基金：

美国国家科学基金会;

关键词：

STANDARD MODEL; CROSS-SECTION; PROGRAM;

D O I：

10.1140/epjc/s10052-015-3820-z

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

A search is presented for a high-mass Higgs boson in the , , , and decay modes using the ATLAS detector at the CERN Large Hadron Collider. The search uses proton-proton collision data at a centre-of-mass energy of 8 TeV corresponding to an integrated luminosity of 20.3 fb. The results of the search are interpreted in the scenario of a heavy Higgs boson with a width that is small compared with the experimental mass resolution. The Higgs boson mass range considered extends up to for all four decay modes and down to as low as 140 , depending on the decay mode. No significant excess of events over the Standard Model prediction is found. A simultaneous fit to the four decay modes yields upper limits on the production cross-section of a heavy Higgs boson times the branching ratio to boson pairs. 95 % confidence level upper limits range from 0.53 pb at GeV to 0.008 pb at GeV for the gluon-fusion production mode and from 0.31 pb at GeV to 0.009 pb at GeV for the vector-boson-fusion production mode. The results are also interpreted in the context of Type-I and Type-II two-Higgs-doublet models.

引用

页码：1 / 42

页数：42

共 104 条

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