Search for a resonance decaying into a scalar particle and a Higgs boson in the final state with two bottom quarks and two photons in proton-proton collisions at √s=13 TeV with the ATLAS detector

被引：0

作者：

Aad, G. ^{[165
]}

Aakvaag, E. ^{[21
]}

Abbott, B. ^{[186
]}

Abeling, K. ^{[86
]}

Abicht, N. J. ^{[79
]}

Abidi, S. H. ^{[48
]}

Aboelela, M. ^{[72
]}

Aboulhorma, A. ^{[63
]}

Abramowicz, H. ^{[231
]}

Abreu, H. ^{[230
]}

Abulaiti, Y. ^{[183
]}

Acharya, B. S. ^{[111
,112
,264
]}

Ackermann, A. ^{[101
]}

Bourdarios, C. Adam ^{[5
]}

Adamczyk, L. ^{[143
]}

Addepalli, S. V. ^{[38
]}

Addison, M. J. ^{[164
]}

Adelman, J. ^{[180
]}

Adiguzel, A. ^{[30
]}

Adye, T. ^{[205
]}

Affolder, A. A. ^{[207
]}

Afik, Y. ^{[66
]}

Agaras, M. N. ^{[14
]}

Agarwala, J. ^{[120
,121
]}

Aggarwal, A. ^{[163
]}

Agheorghiesei, C. ^{[41
]}

Ahmad, A. ^{[65
]}

Ahmadov, F. ^{[13
,65
]}

Ahmed, W. S. ^{[167
]}

Ahuja, S. ^{[157
]}

Ai, X. ^{[100
]}

Aielli, G. ^{[126
,127
]}

Aikot, A. ^{[246
]}

Ait Tamlihat, M. ^{[63
]}

Aitbenchikh, B. ^{[60
]}

Aizenberg, I. ^{[252
]}

Akbiyik, M. ^{[163
]}

Akesson, T. P. A. ^{[160
]}

Akimov, A. V. ^{[65
]}

Akiyama, D. ^{[251
]}

Akolkar, N. N. ^{[36
]}

Aktas, S. ^{[28
]}

Al Khoury, K. ^{[68
]}

Alberghi, G. L. ^{[35
]}

Albert, J. ^{[248
]}

Albicocco, P. ^{[83
,84
]}

Albouy, G. L. ^{[92
]}

Alderweireldt, S. ^{[82
]}

Alegria, Z. L. ^{[187
]}

Aleksa, M. ^{[65
]}

机构：

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

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

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

[4] TOBB Univ Econ & Technol, Div Phys, Ankara, Turkiye

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

[6] Univ Paris Cite, APC, CNRS, IN2P3, Paris, France

[7] Argonne Natl Lab, Div High Energy Phys, Argonne, IL 60439 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, Dept Phys, Athens, Greece

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

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

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

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

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

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

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

[18] Sun Yat Sen Univ, Sch Sci, Shenzhen Campus, Shenzhen, Peoples R China

[19] Univ Chinese Acad Sci, Beijing, Peoples R China

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

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

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

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

[24] Humboldt Univ, Inst 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, Turkiye

[29] Gaziantep Univ, Dept Engn Phys, Gaziantep, Turkiye

[30] Istanbul Univ, Dept Phys, Istanbul, Turkiye

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

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

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

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

[35] INFN, Sez Bologna, Bologna, Italy

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

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

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

[39] Transilvania Univ Brasov, Brasov, Romania

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

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

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

[43] Natl Univ Sci & Technol Politech, Bucharest, Romania

[44] West Univ Timisoara, Timisoara, Romania

[45] Univ Bucharest, Fac Phys, Bucharest, Romania

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

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

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

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

[50] Consejo Nacl Invest Cient & Tecn, Inst Fis Buenos Aires IFIBA, Buenos Aires, DF, Argentina

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2024年 / 11期

基金：

巴西圣保罗研究基金会; 瑞典研究理事会; 加拿大自然科学与工程研究理事会; 日本学术振兴会; 中国国家自然科学基金; 英国科学技术设施理事会; 欧洲研究理事会;

关键词：

Hadron-Hadron Scattering; Beyond Standard Model; Higgs Physics; Hadron-Hadron scattering; STANDARD MODEL;

D O I：

10.1007/JHEP11(2024)047

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 for the resonant production of a heavy scalar X decaying into a Higgs boson and a new lighter scalar S, through the process X -> S(-> b (b) over bar )H(->gamma gamma), where the two photons are consistent with the Higgs boson decay, is performed. The search is conducted using an integrated luminosity of 140 fb(-1) of proton-proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider. The search is performed over the mass range 170 <= m(X) <= 1000 GeV and 15 <= m(S) <= 500 GeV. Parameterised neural networks are used to enhance the signal purity and to achieve continuous sensitivity in a domain of the (m(X), m(S)) plane. No significant excess above the expected background is found and 95% CL upper limits are set on the cross section times branching ratio, ranging from 39 fb to 0.09 fb. The largest deviation from the background-only expectation occurs for (m(X), m(S)) = (575, 200) GeV with a local (global) significance of 3.5 (2.0) standard deviations.

引用

页数：47

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