Search for new phenomena in a lepton plus high jet multiplicity final state the ATLAS experiment using √S=13 TeV proton-proton collision data

被引：0

作者：

Aaboud, M. ^{[195
,196
]}

Aad, G. ^{[128
,129
]}

Abbott, B. ^{[160
]}

Abdinov, O. ^{[15
]}

Abeloos, B. ^{[164
]}

Abidi, S. H. ^{[225
]}

AbouZeid, O. S. ^{[199
]}

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

Abramowicz, H. ^{[219
]}

Abreu, H. ^{[218
]}

Abreu, R. ^{[163
]}

Abulaiti, Y. ^{[211
,212
]}

Acharya, B. S. ^{[234
,235
,252
]}

Adachi, S. ^{[221
]}

Adamczyka, L. ^{[66
]}

Adelman, J. ^{[155
]}

Adersberger, M. ^{[144
]}

Adye, T. ^{[186
]}

Affolder, A. A. ^{[199
]}

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

Agheorghiesei, C. ^{[42
]}

Aguilar-Saavedra, J. A. ^{[175
,180
,181
]}

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

Ahmadov, F. ^{[15
,102
]}

Aielli, G. ^{[189
,190
]}

Akatsuka, S. ^{[105
]}

Akerstedt, H. ^{[211
,212
]}

Akesson, T. P. A. ^{[124
]}

Akilli, E. ^{[80
]}

Akimov, A. V. ^{[140
]}

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

Albert, J. ^{[241
]}

Albicocco, P. ^{[77
,78
]}

Verzini, M. J. Alconada ^{[109
,110
]}

Aleksa, M. ^{[48
]}

Aleksandrov, I. N. ^{[102
]}

Alexa, C. ^{[41
]}

Alexander, G. ^{[219
]}

Alexopoulos, T. ^{[13
]}

Alhroob, M. ^{[160
]}

Ali, B. ^{[183
]}

Aliev, M. ^{[112
,113
]}

Alimonti, G. ^{[135
]}

Alison, J. ^{[49
]}

Alkire, S. P. ^{[62
]}

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

Allen, B. W. ^{[163
]}

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

Aloisio, A. ^{[88
,98
,149
,150
]}

Alonso, A. ^{[63
]}

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, IN2P3, LAPP, Annecy Le Vieux, France

[8] Univ Savoie Mt 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, Arlington, TX USA

[12] Natl & Kapodistrian 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, Lab High Energy Phys, Bern, Switzerland

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

[25] Bogazici Univ, Dept Phys, Bebek, 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] INFN, Sez Bologna, Bologna, Italy

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

[32] Univ Bonn, Phys Inst, 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] Univ Fed Juiz de Fora, Elect Circuits Dept, Juiz de Fora, Brazil

[37] Fed Univ Sao Joao del 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] Transilvania Univ Brasov, Brasov, Romania

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

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

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

[44] West Univ Timisoara, Timisoara, Romania

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

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

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

[48] CERN, Geneva, Switzerland

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

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

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2017年 / 09期

基金：

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

关键词：

Beyond Standard Model; Hadron-Hadron scattering (experiments); PARTON DISTRIBUTIONS; GLUINO PRODUCTION; TOP QUARKS; EXTENSION; VIOLATION; SQUARK;

D O I：

10.1007/JHEP09(2017)088

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 new phenomena in final states characterized by high jet multiplicity, an isolated lepton ( electron or muon) and either zero or at least three b-tagged jets is presented. The search uses 36.1 fb(-1) of root s = 13TeV proton-proton collision data collected by the ATLAS experiment at the Large Hadron Collider in 2015 and 2016. The dominant sources of background are estimated using parameterized extrapolations, based on observables at medium jet multiplicity, to predict the b-tagged jet multiplicity distribution at the higher jet multiplicities used in the search. No significant excess over the Standard Model expectation is observed and 95% confidence-level limits are extracted constraining four simplified models of R-parity-violating supersymmetry that feature either gluino or top-squark pair production. The exclusion limits reach as high as 2.1TeV in gluino mass and 1.2TeV in top-squark mass in the models considered. In addition, an upper limit is set on the cross-section for Standard Model t (t) over bart (t) over bar production of 60 fb (6.5 x the Standard Model prediction) at 95% confidence level. Finally, model-independent limits are set on the contribution from new phenomena to the signal-region yields.

引用

页数：50

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