Search for resonances in diphoton events at √s=13TeV with the ATLAS detector

被引：0

作者：

Aaboud, M. ^{[190
,191
]}

Aad, G. ^{[122
,123
]}

Abbott, B. ^{[154
]}

Abdallah, J. ^{[95
]}

Abdinov, O. ^{[15
]}

Abeloos, B. ^{[158
]}

Aben, R. ^{[147
,148
]}

AbouZeid, O. S. ^{[194
]}

Abraham, N. L. ^{[211
]}

Abramowicz, H. ^{[215
]}

Abreu, H. ^{[214
]}

Abreu, R. ^{[157
]}

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

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

Adamczyk, L. ^{[63
]}

Adams, D. L. ^{[39
]}

Adelman, J. ^{[149
]}

Adomeit, S. ^{[138
]}

Adye, T. ^{[180
]}

Affolder, A. A. ^{[108
]}

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

Agricola, J. ^{[83
]}

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

Ahlen, S. P. ^{[33
]}

Ahmadov, F. ^{[15
,97
]}

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

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

Akesson, T. P. A. ^{[118
]}

Akimov, A. V. ^{[134
]}

Alberghi, G. L. ^{[30
,31
]}

Albert, J. ^{[239
]}

Albrand, S. ^{[84
]}

Alconada Verzini, M. J. ^{[103
,104
]}

Aleksa, M. ^{[46
]}

Aleksandrov, I. N. ^{[97
]}

Alexa, C. ^{[40
]}

Alexander, G. ^{[215
]}

Alexopoulos, T. ^{[13
]}

Alhroob, M. ^{[154
]}

Ali, B. ^{[177
]}

Aliev, M. ^{[106
,107
]}

Alimonti, G. ^{[129
]}

Alison, J. ^{[47
]}

Alkire, S. P. ^{[60
]}

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

Allen, B. W. ^{[157
]}

Allport, P. P. ^{[24
]}

Aloisio, A. ^{[143
,144
]}

Alonso, A. ^{[61
]}

Alonso, F. ^{[103
,104
]}

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, Ankara, Turkey

[5] Istanbul Aydin Univ, Istanbul, Turkey

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

[7] CNRS, LAPP, IN2P3, 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] Univ Texas Austin, Dept Phys, Austin, TX 78712 USA

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

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

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

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

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

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

[21] Humboldt Univ, Dept Phys, 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] Istanbul Bilgi Univ, Fac Engn & Nat Sci, Istanbul, Turkey

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

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

[30] Ist Nazl Fis Nucl, Sez Bologna, Bologna, Italy

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

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

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

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

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

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

[37] Fed Univ Sao Joao Rei UFSJ, Sao Joao Del Rei, Brazil

[38] Univ Sao Paulo, Inst Fis, Sao Paulo, Brazil

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

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

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

[42] West Univ Timisoara, Timisoara, Romania

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

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

[45] Carleton Univ, Dept Phys, Ottawa, ON, Canada

[46] CERN, Geneva, Switzerland

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

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

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

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2016年 / 09期

基金：

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

关键词：

Beyond Standard Model; Hadron-Hadron scattering (experiments); Hard scattering; Particle and resonance production; proton-proton scattering; HIERARCHY;

D O I：

10.1007/JHEP09(2016)001

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：

Searches for new resonances decaying into two photons in the ATLAS experiment at the CERN Large Hadron Collider are described. The analysis is based on protonproton collision data corresponding to an integrated luminosity of 3.2 fb(-1) at root s = 13TeV recorded in 2015. Two searches are performed, one targeted at a spin-2 particle of mass larger than 500 GeV, using Randall-Sundrum graviton states as a benchmark model, and one optimized for a spin-0 particle of mass larger than 200 GeV. Varying both the mass and the decay width, the most significant deviation from the background-only hypothesis is observed at a diphoton invariant mass around 750 GeV with local significances of 3.8 and 3.9 standard deviations in the searches optimized for a spin-2 and spin-0 particle, respectively. The global significances are estimated to be 2.1 standard deviations for both analyses. The consistency between the data collected at 13TeV and 8TeV is also evaluated. Limits on the production cross section times branching ratio to two photons for the two resonance types are reported.

引用

页数：50

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