Search for Resonant and Nonresonant Higgs Boson Pair Production in the b(b)over-barτ+ τ- Decay Channel in pp Collisions at √s=13 TeV with the ATLAS Detector

被引：40

作者：

Aaboud, M. ^{[54
,55
]}

Aad, G. ^{[152
]}

Abbott, B. ^{[180
]}

Abdinov, O. ^{[18
]}

Abeloos, B. ^{[184
]}

Abhayasinghe, D. K. ^{[143
]}

Abidi, S. H. ^{[227
]}

AbouZeid, O. S. ^{[61
]}

Abraham, N. L. ^{[215
]}

Abramowicz, H. ^{[221
]}

Abreu, H. ^{[220
]}

Abulaiti, Y. ^{[8
]}

Acharya, B. S. ^{[99
,100
,247
]}

Adachi, S. ^{[223
]}

Adamczyk, L. ^{[130
]}

Adelman, J. ^{[174
]}

Adersberger, M. ^{[165
]}

Adiguzel, A. ^{[16
,248
]}

Adye, T. ^{[202
]}

Affolder, A. A. ^{[204
]}

Afik, Y. ^{[220
]}

Agheorghiesei, C. ^{[40
]}

Aguilar-Saavedra, J. A. ^{[192
,197
]}

Ahmadov, F. ^{[18
,123
]}

Aielli, G. ^{[114
,115
]}

Akatsuka, S. ^{[133
]}

Akesson, T. P. A. ^{[146
]}

Akilli, E. ^{[78
]}

Akimov, A., V ^{[161
]}

Alberghi, G. L. ^{[33
,34
]}

Albert, J. ^{[238
]}

Albicocco, P. ^{[74
,75
]}

Alconada Verzini, M. J. ^{[137
]}

Alderweireldt, S. ^{[171
]}

Aleksa, M. ^{[57
]}

Aleksandrov, I. N. ^{[123
]}

Alexa, C. ^{[39
]}

Alexopoulos, T. ^{[12
]}

Alhroob, M. ^{[180
]}

Ali, B. ^{[199
]}

Alimonti, G. ^{[104
]}

Alison, J. ^{[58
]}

Alkire, S. P. ^{[207
]}

Allaire, C. ^{[184
]}

Allbrooke, B. M. M. ^{[215
]}

Allen, B. W. ^{[183
]}

Allport, P. P. ^{[31
]}

Aloisio, A. ^{[106
,107
]}

Alonso, A. ^{[61
]}

Alonso, F. ^{[137
]}

机构：

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

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

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

[4] Ankara Univ, Dept Phys, Ankara, Turkey

[5] Istanbul Aydin Univ, Istanbul, Turkey

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

[7] Univ Grenoble Alpes, Univ Savoie Mont Blanc, LAPP, CNRS,IN2P3, Annecy, France

[8] Argonne Natl Lab, High Energy Phys Div, 9700 S Cass Ave, Argonne, IL 60439 USA

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

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

[11] Natl & Kapodistrian Univ Athens, Phs Dept, Athens, Greece

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

[13] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

[14] Bahcesehir Univ, Fac Engn & Nat Sci, Istanbul, Turkey

[15] Istanbul Bilgi Univ, Fac Engn & Nat Sci, Istanbul, Turkey

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

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

[18] Azerbaijan Acad Sci, Inst Phys, Baku, Azerbaijan

[19] Barcelona Inst Sci & Technol, IFAE, Barcelona, Spain

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

[21] Tsinghua Univ, Phys Dept, Beijing, Peoples R China

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

[23] UCAS, Beijing, Peoples R China

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

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

[26] Lawrence Berkeley Natl Lab, Phys Div, Berkeley, CA USA

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

[28] Humboldt Univ, Inst Phys, Berlin, Germany

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

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

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

[32] Univ Antonio Narino, Ctr Invest, Bogota, Colombia

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

[34] INFN, Sez Bologna, Bologna, Italy

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

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

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

[38] Transilvania Univ Brasov, Brasov, Romania

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

[40] Alexandru Ioan Cuza Univ, Dept Phys, Iasi, Romania

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

[42] West Univ Timisoara, Timisoara, Romania

[43] Comenius Univ, Fac Math Phys & Informat, Bratislava, Slovakia

[44] Slovak Acad Sci, Dept Subnucl Phys, Inst Expt Phys, Kosice, Slovakia

[45] Brookhaven Natl Lab, Phys Dept, New York, NY USA

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

[47] Univ Cambridge, Cavendish Lab, Cambridge, England

[48] Univ Cape Town, Dept Phys, Cape Town, South Africa

[49] Univ Johannesburg, Dept Mech Engn Sci, Johannesburg, South Africa

[50] Univ Witwatersrand, Sch Phys, Johannesburg, South Africa

来源：

PHYSICAL REVIEW LETTERS | 2018年 / 121卷 / 19期

基金：

巴西圣保罗研究基金会; 欧盟地平线“2020”; 美国国家科学基金会; 加拿大自然科学与工程研究理事会;

关键词：

STRAHLUNG; MASS; LHC;

D O I：

10.1103/PhysRevLett.121.191801

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A search for resonant and nonresonant pair production of Higgs bosons in the b (b) over bar tau(+)tau(-) final state is presented. The search uses 36.1 fb(-1) of pp collision data with root s = 13 TeV recorded by the ATLAS experiment at the LHC in 2015 and 2016. Decays of the tau-lepton pairs with at least one tau lepton decaying to final states with hadrons and a neutrino are considered. No significant excess above the expected background is observed in the data. The cross-section times branching ratio for nonresonant Higgs boson pair production is constrained to be less than 30.9 fb, 12.7 times the standard model expectation, at 95% confidence level. The data are also analyzed to probe resonant Higgs boson pair production, constraining a model with an extended Higgs sector based on two doublets and a Randall-Sundrum bulk graviton model. Upper limits are placed on the resonant Higgs boson pair production cross-section times branching ratio, excluding resonances X in the mass range 305 GeV < m(X) < 402 GeV in the simplified hMSSM minimal supersymmetric model for tan beta = 2 and excluding bulk Randall-Sundrum gravitons G(KK) in the mass range 325 GeV < m(GKK) < 885 GeV for k/(M) over bar P-1 = 1.

引用

页数：24

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