A search for massive coloured resonances which are pair-produced and decay into two jets is presented. The analysis uses 36.7 fb−1−1 of s√s = 13 TeV pp collision data recorded by the ATLAS experiment at the LHC in 2015 and 2016. No significant deviation from the background prediction is observed. Results are interpreted in a SUSY simplified model where the lightest supersymmetric particle is the top squark, t~t~, which decays promptly into two quarks through R-parity-violating couplings. Top squarks with masses in the range 100 GeV<mt~<410100 GeV<mt~<410 GeVGeV are excluded at 95% confidence level. If the decay is into a b-quark and a light quark, a dedicated selection requiring two b-tags is used to exclude masses in the ranges 100 GeV<mt~<470100 GeV<mt~<470 GeVGeV and 480 GeV<mt~<610480 GeV<mt~<610 GeVGeV. Additional limits are set on the pair-production of massive colour-octet resonances.

Title

European Physical Journal C

Publisher

Springer New York LLC

Publisher Country

United States of America

Indexing

Thomson Reuters

Impact Factor

5.172

Publication Type

Prtinted only

Volume

78

Year

2018

Pages

250