[PDF] Top 20 Search for supersymmetry in events with photons and missing transverse energy in pp collisions at 13 TeV

... subsystems. Photons are reconstructed from energy deposits in the ...the energy present in the corre- sponding region of the HCAL not exceed 5% of the ECAL energy, as electromagnetic showers ... See full document

... a search for signatures of supersymmetry in events containing two energetic isolated photons and large missing transverse momentum (with magnitude denoted E miss T ) in ...= ... See full document

... Uncertainties in backgrounds such as diboson and ttV are also estimated by compar- isons of the nominal sample with alternative samples differing in generator or parameter settings ( Powheg v2 with showering by Pythia ... See full document

... To ensure that the control regions are statistically independent of the signal regions, the lepton veto applied in the preselection (section 5.1) is modified such that each control re- gion requires at least one signal ... See full document

... of energy deposits in the electromagnetic calorime- ter measured in projective ...photon energy is corrected by applying the energy scales measured with Z → e + e − decays ...converted ... See full document

... The LHCb detector is a single-arm forward spectrometer covering the pseudorapidity range 2 < η < 5 , described in detail in Refs. [53,54]. Simulated data samples, which are used to validate the analysis, are ... See full document

... inclusive search for supersymmetry using razor variables is performed in events with four or more jets and no more than one ...proton-proton collisions corresponding to an integrated ... See full document

... There are various mechanisms by which particles obtain significant lifetimes in BSM theories. The decays of such particles can be suppressed in so-called Hidden Valley models [5] where large barrier potentials reduce the ... See full document

... A search for supersymmetry involving the pair production of gluinos decaying via third-generation squarks to the lightest neutralino ( χ ~ 0 1 ) is ...center-of-mass energy p ffiffiffi s ¼ 13 ... See full document

... A search for direct top squark pair production resulting in events with either a same-flavour opposite-sign dilepton pair with invariant mass compatible with a Z boson or a pair of jets compatible with a ... See full document

... bb events, generated using MadGraph5 aMC@NLO, which are compared with the sum of t ¯ t and W t ...of events in the MC background samples are included if above ... See full document

... N. Ozturk 8 , K. Pachal 144 , A. Pacheco Pages 13 , L. Pacheco Rodriguez 138 , C. Padilla Aranda 13 , S. Pagan Griso 16 , M. Paganini 179 , F. Paige 27 , P. Pais 89 , K. Pajchel 121 , G. Palacino 64 , S. ... See full document

... High-energy collisions at CERN’s Large Hadron Collider (LHC) provide new opportunities to search for physics beyond the Standard Model ...a search in events containing a lepton ... See full document

... The ATLAS detector [18] consists of an inner detector (ID) surrounded by a solenoid that produces a 2 T magnetic field, electromagnetic and hadronic calorimeters, and a muon spectrometer (MS) employing toroidal magnets. ... See full document

... MC events, even though the MC signal samples are reweighted to match the pileup distribution observed in the ...signal events should be correctly identified with high efficiency, typically greater than 90%, ... See full document

... hadronic energy measurements up to |η| = ...each. Events are selected by a two-level trigger system consisting of a hardware-based trigger for the first level and a software-based system for the second ... See full document

... consists of a silicon pixel detector, a semiconductor microstrip detector, and a transition radiation tracker. The ID is surrounded by a thin superconducting solenoid providing a 2 T axial magnetic field. A ... See full document

... , is required to be larger than 100 GeV. E miss T must exceed 125 GeV and must satisfy E miss T > 0 : 25 m eff , where the effective mass m eff is the scalar sum of the p T of the three leading jets, the p T of the ... See full document

... clustered energy deposits cal- ibrated at the electromagnetic scale. The jet energy is corrected to account for pile-up and for the non-compensating nature of the calorimeter using correction factors ... See full document

... 2.5 TeV, and the lightest Higgs boson is in the decoupled regime with m A = 2 TeV and m h = 115 GeV, which results in a branching ratio BR ( h → b b ¯ ) = ...5 TeV, the ratio of Higgs doublet vacuum ... See full document