Search for Higgs boson pair production in the two bottom quarks plus two photons final state in pp collisions at √s=13 TeV with the ATLAS detector

被引：20

作者：

Aad, G. ^{[156
]}

Abbott, B. ^{[185
]}

Abbott, D. C. ^{[157
]}

Abud, A. Abed ^{[59
]}

Abeling, K. ^{[80
]}

Abhayasinghe, D. K. ^{[147
]}

Abidi, S. H. ^{[46
]}

Abramowicz, H. ^{[229
]}

Abreu, H. ^{[228
]}

Abulaiti, Y. ^{[7
]}

Abusleme Hoffman, A. C. ^{[209
]}

Acharya, B. S. ^{[103
,104
,254
]}

Achkar, B. ^{[80
]}

Adam, L. ^{[154
]}

Bourdarios, C. Adam ^{[6
]}

Adamczyk, L. ^{[133
]}

Adamek, L. ^{[235
]}

Adelman, J. ^{[176
]}

Adiguzel, A. ^{[15
,255
]}

Adorni, S. ^{[81
]}

Adye, T. ^{[206
]}

Affolder, A. A. ^{[208
]}

Afik, Y. ^{[228
]}

Agapopoulou, C. ^{[101
]}

Agaras, M. N. ^{[17
]}

Agarwala, J. ^{[112
,113
]}

Aggarwal, A. ^{[173
]}

Agheorghiesei, C. ^{[40
]}

Aguilar-Saavedra, J. A. ^{[196
,201
,256
]}

Ahmad, A. ^{[59
]}

Ahmadov, F. ^{[127
,257
]}

Ahmed, W. S. ^{[158
]}

Ai, X. ^{[71
,72
]}

Aielli, G. ^{[118
,119
]}

Akatsuka, S. ^{[136
]}

Akbiyik, M. ^{[154
]}

Akesson, T. P. A. ^{[150
]}

Akimov, A., V ^{[165
]}

Al Khoury, K. ^{[62
]}

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

Albert, J. ^{[246
]}

Alconada Verzini, M. J. ^{[140
,141
]}

Alderweireldt, S. ^{[76
]}

Aleksa, M. ^{[59
]}

Aleksandrov, I. N. ^{[127
]}

Alexa, C. ^{[39
]}

Alexopoulos, T. ^{[11
]}

Alfonsi, A. ^{[174
,175
]}

Alfonsi, F. ^{[33
,34
]}

Alhroob, M. ^{[185
]}

机构：

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

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

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

[4] Istanbul Aydin Univ, Applicat & Res Ctr Adv Studies, Istanbul, Turkey

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

[6] Univ Savoie Mt Blanc, LAPP, CNRS IN2P3, Annecy, France

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

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

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

[10] Natl & Kapodistrian Univ Athens, Phys Dept, Athens, Greece

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

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

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

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

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

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

[17] Barcelona Inst Sci & Technol, Inst Fis Altes Energies IFAE, Barcelona, Spain

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

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

[20] Nanjing Univ, Dept Phys, Nanjing, Peoples R China

[21] Univ Chinese Acad Sci UCAS, Beijing, Peoples R China

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

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

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

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

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

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

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

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

[30] Univ Antonio Narino, Fac Ciencias, Bogota, Colombia

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

[32] Univ Nacl Colombia, Dept Fis, Bogota, Colombia

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

[34] Ist Nazl Fis Nucl, 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] Univ Politehn Bucuresti, Bucharest, Romania

[43] West Univ Timisoara, Timisoara, Romania

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

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

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

[47] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, Buenos Aires, DF, Argentina

[48] Univ Buenos Aires, CONICET, Inst Fis Buenos Aires IFIBA, Buenos Aires, DF, Argentina

[49] Calif State Univ Long Beach, Long Beach, CA 90840 USA

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

来源：

PHYSICAL REVIEW D | 2022年 / 106卷 / 05期

基金：

巴西圣保罗研究基金会; 欧盟地平线“2020”;

关键词：

BROKEN SYMMETRIES; MASS; LHC;

D O I：

10.1103/PhysRevD.106.052001

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Searches are performed for nonresonant and resonant di-Higgs boson production in the b (b) over bar gamma gamma final state. The dataset used corresponds to an integrated luminosity of 139 fb(-1) of proton-proton collisions at a center-of- mass energy of 13 TeV recorded by the ATLAS detector at the CERN Large Hadron Collider. No excess above the expected background is found and upper limits on the di-Higgs boson production cross sections are set. A 95% confidence-level upper limit of 4.2 times the cross section predicted by the Standard Model is set on pp -> HH nonresonant production, where the expected limit is 5.7 times the Standard Model predicted value. The expected constraints are obtained for a background hypothesis excluding pp -> HH production. The observed (expected) constraints on the Higgs boson trilinear coupling modifier kappa(lambda) are determined to be [-1.5, 6.7] ([-2.4, 7.7]) at 95% confidence level, where the expected constraints on kappa(lambda) are obtained excluding pp -> HH production from the background hypothesis. For resonant production of a new hypothetical scalar particle X (X -> HH -> b (b) over bar gamma gamma), limits on the cross section for pp -> X -> HH are presented in the narrow-width approximation as a function of m x in the range 251 GeV <= m(X) <= 1000 GeV. The observed (expected) limits on the cross section for pp ->> X -> HH range from 640 fb to 44 fb (391 fb to 46 fb) over the considered mass range.

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