Elsevier

Physics Letters B

Volume 785, 10 October 2018, Pages 136-158
Physics Letters B

Search for R-parity-violating supersymmetric particles in multi-jet final states produced in pp collisions at s=13 TeV using the ATLAS detector at the LHC

https://doi.org/10.1016/j.physletb.2018.08.021Get rights and content
Under a Creative Commons license
open access

Abstract

Results of a search for gluino pair production with subsequent R-parity-violating decays to quarks are presented. This search uses 36.1 fb−1 of data collected by the ATLAS detector in proton–proton collisions with a centre-of-mass energy of s=13 TeV at the LHC. The analysis is performed using requirements on the number of jets and the number of jets tagged as containing a b-hadron as well as a topological observable formed by the scalar sum of masses of large-radius jets in the event. No significant excess above the expected Standard Model background is observed. Limits are set on the production of gluinos in models with the R-parity-violating decays of either the gluino itself (direct decay) or the neutralino produced in the R-parity-conserving gluino decay (cascade decay). In the gluino cascade decay model, gluino masses below 1850 GeV are excluded for 1000 GeV neutralino mass. For the gluino direct decay model, the 95% confidence level upper limit on the cross section times branching ratio varies between 0.80 fb at mg˜=900 GeV and 0.011 fb at mg˜=1800 GeV.

Cited by (0)

a

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

b

Also at Borough of Manhattan Community College, City University of New York, NY, United States of America.

c

Also at Centre for High Performance Computing, CSIR Campus, Rosebank, Cape Town, South Africa.

d

Also at CERN, Geneva, Switzerland.

e

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

f

Also at Département de Physique Nucléaire et Corpusculaire, Université de Genève, Genève, Switzerland.

g

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

h

Also at Departamento de Física Teorica y del Cosmos, Universidad de Granada, Granada (Spain), Spain.

i

Also at Department of Applied Physics and Astronomy, University of Sharjah, Sharjah, United Arab Emirates.

j

Also at Department of Financial and Management Engineering, University of the Aegean, Chios, Greece.

k

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

l

Also at Department of Physics and Astronomy, University of Sheffield, Sheffield, United Kingdom.

m

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

n

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

o

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

p

Also at Department of Physics, Nanjing University, Nanjing, China.

q

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

r

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

s

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

t

Also at Dipartimento di Fisica E. Fermi, Università di Pisa, Pisa, Italy.

u

Also at Giresun University, Faculty of Engineering, Giresun, Turkey.

v

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

w

Also at Hellenic Open University, Patras, Greece.

x

Also at Horia Hulubei National Institute of Physics and Nuclear Engineering, Bucharest, Romania.

y

Also at II. Physikalisches Institut, Georg-August-Universität Göttingen, Göttingen, Germany.

z

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

aa

Also at Institut de Física d'Altes Energies (IFAE), Barcelona Institute of Science and Technology, Barcelona, Spain.

ab

Also at Institut für Experimentalphysik, Universität Hamburg, Hamburg, Germany.

ac

Also at Institute for Mathematics, Astrophysics and Particle Physics, Radboud University Nijmegen/Nikhef, Nijmegen, Netherlands.

ad

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

ae

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

af

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

ag

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

ah

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

ai

Also at LAL, Université Paris-Sud, CNRS/IN2P3, Université Paris-Saclay, Orsay, France.

aj

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

ak

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

al

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

am

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

an

Also at Near East University, Nicosia, North Cyprus, Mersin, Turkey.

ao

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

ap

Also at Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Freiburg, Germany.

aq

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

ar

Also at The City College of New York, New York, NY, United States of America.

as

Also at The Collaborative Innovation Center of Quantum Matter (CICQM), Beijing, China.

at

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

au

Also at TRIUMF, Vancouver, BC, Canada.

av

Also at Universita di Napoli Parthenope, Napoli, Italy.

Deceased.

E-mail address: [email protected].