Elsevier

Physics Letters B

Volume 757, 10 June 2016, Pages 334-355
Physics Letters B

Search for new phenomena in final states with large jet multiplicities and missing transverse momentum with ATLAS using s=13TeV proton–proton collisions

https://doi.org/10.1016/j.physletb.2016.04.005Get rights and content
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Abstract

Results are reported of a search for new phenomena, such as supersymmetric particle production, that could be observed in high-energy proton–proton collisions. Events with large numbers of jets, together with missing transverse momentum from unobserved particles, are selected. The data analysed were recorded by the ATLAS experiment during 2015 using the 13 TeV centre-of-mass proton–proton collisions at the Large Hadron Collider, and correspond to an integrated luminosity of 3.2 fb−1. The search selected events with various jet multiplicities from ≥7 to ≥10 jets, and with various b-jet multiplicity requirements to enhance sensitivity. No excess above Standard Model expectations is observed. The results are interpreted within two supersymmetry models, where gluino masses up to 1400 GeV are excluded at 95% confidence level, significantly extending previous limits.

Cited by (0)

ap

Also affiliated with PKU-CHEP.

a

Also at Department of Physics, King's College London, London, United Kingdom.

b

Also at Institute of Physics, Azerbaijan Academy of Sciences, Baku, Azerbaijan.

c

Also at Novosibirsk State University, Novosibirsk, Russia.

d

Also at TRIUMF, Vancouver, BC, Canada.

e

Also at Department of Physics & Astronomy, University of Louisville, Louisville, KY, United States.

f

Also at Department of Physics, California State University, Fresno, CA, United States.

g

Also at Department of Physics, University of Fribourg, Fribourg, Switzerland.

h

Also at Departament de Fisica de la Universitat Autonoma de Barcelona, Barcelona, Spain.

i

Also at Departamento de Fisica e Astronomia, Faculdade de Ciencias, Universidade do Porto, Portugal.

j

Also at Tomsk State University, Tomsk, Russia.

k

Also at Universita di Napoli Parthenope, Napoli, Italy.

l

Also at Institute of Particle Physics (IPP), Canada.

m

Also at Department of Physics, St. Petersburg State Polytechnical University, St. Petersburg, Russia.

n

Also at Department of Physics, The University of Michigan, Ann Arbor, MI, United States.

o

Also at Louisiana Tech University, Ruston, LA, United States.

p

Also at Institucio Catalana de Recerca i Estudis Avancats, ICREA, Barcelona, Spain.

q

Also at Graduate School of Science, Osaka University, Osaka, Japan.

r

Also at Department of Physics, National Tsing Hua University, Taiwan.

s

Also at Department of Physics, The University of Texas at Austin, Austin, TX, United States.

t

Also at Institute of Theoretical Physics, Ilia State University, Tbilisi, Georgia.

u

Also at CERN, Geneva, Switzerland.

v

Also at Georgian Technical University (GTU), Tbilisi, Georgia.

w

Also at Ochadai Academic Production, Ochanomizu University, Tokyo, Japan.

x

Also at Manhattan College, New York, NY, United States.

y

Also at Hellenic Open University, Patras, Greece.

z

Also at Institute of Physics, Academia Sinica, Taipei, Taiwan.

aa

Also at Academia Sinica Grid Computing, Institute of Physics, Academia Sinica, Taipei, Taiwan.

ab

Also at School of Physics, Shandong University, Shandong, China.

ac

Also at Moscow Institute of Physics and Technology State University, Dolgoprudny, Russia.

ad

Also at Section de Physique, Université de Genève, Geneva, Switzerland.

ae

Also at International School for Advanced Studies (SISSA), Trieste, Italy.

af

Also at Department of Physics and Astronomy, University of South Carolina, Columbia, SC, United States.

ag

Also at School of Physics and Engineering, Sun Yat-sen University, Guangzhou, China.

ah

Also at Institute for Nuclear Research and Nuclear Energy (INRNE) of the Bulgarian Academy of Sciences, Sofia, Bulgaria.

ai

Also at Faculty of Physics, M.V. Lomonosov Moscow State University, Moscow, Russia.

aj

Also at National Research Nuclear University MEPhI, Moscow, Russia.

ak

Also at Department of Physics, Stanford University, Stanford, CA, United States.

al

Also at Institute for Particle and Nuclear Physics, Wigner Research Centre for Physics, Budapest, Hungary.

am

Also at Flensburg University of Applied Sciences, Flensburg, Germany.

an

Also at University of Malaya, Department of Physics, Kuala Lumpur, Malaysia.

ao

Also at CPPM, Aix-Marseille Université and CNRS/IN2P3, Marseille, France.

Deceased.

E-mail address: [email protected].