Search for new physics in final states with two opposite-sign, same-flavor leptons, jets, and missing transverse momentum in pp collisions at √s = 13 TeV

Khachatryan, V. and Sirunyan, A. M. and Tumasyan, A. and Adam, W. and Asilar, E. and Filipovic, Nicolas and Bencze, György and Hajdú, Csaba and Hidas, Pál and Horváth, Dezső and Siklér, Ferenc and Veszprémi, Viktor and Vesztergombi, György and Zsigmond, Anna Júlia and Makovec, Alajos and Molnár, József and Bartók, Márton and Trócsányi, Zoltán and Ujvári, Balázs and Veres, Gábor (2016) Search for new physics in final states with two opposite-sign, same-flavor leptons, jets, and missing transverse momentum in pp collisions at √s = 13 TeV. JOURNAL OF HIGH ENERGY PHYSICS (12). ISSN 1126-6708

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Abstract

A search is presented for physics beyond the standard model in final states with two opposite-sign, same-flavor leptons, jets, and missing transverse momentum. The data sample corresponds to an integrated luminosity of 2.3 fb−1 of proton-proton colli- sions at √s = 13 TeV collected with the CMS detector at the LHC in 2015. The anal- ysis uses the invariant mass of the lepton pair, searching for a kinematic edge or a resonant-like excess compatible with the Z boson mass. Both search modes use sev- eral event categories in order to increase the sensitivity to new physics. These cate- gories are based on the rapidity of the leptons, the multiplicity of jets and b jets, the scalar sum of jet transverse momenta, and missing transverse momentum. The ob- servations in all signal regions are consistent with the expectations from the standard model, and the results are interpreted in the context of simplified models of super- symmetry.

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