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dc.contributor.authorSirunyan, A. M.
dc.contributor.authorTumasyan, A. R.
dc.contributor.authorAdam, Wolfgang
dc.contributor.authorBaarmand, Marc M.
dc.contributor.authorBhopatkar, Vallary
dc.contributor.authorColafranceschi, Stefano
dc.contributor.authorHohlmann, Marcus
dc.contributor.authorNoonan, Daniel
dc.contributor.authorRoy, Tuhin S.
dc.contributor.authorYumiceva, Francisco
dc.date.accessioned2019-03-07T16:45:45Z
dc.date.available2019-03-07T16:45:45Z
dc.date.issued2018-07-10
dc.identifier.citationSirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Asilar, E., Bergauer, T., . . . The CMS Collaboration. (2018). Search for new physics in events with two soft oppositely charged leptons and missing transverse momentum in proton–proton collisions at s=13TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 782, 440-467. doi:10.1016/j.physletb.2018.05.062en_US
dc.identifier.urihttp://hdl.handle.net/11141/2732
dc.description.abstractA search is presented for new physics in events with two low-momentum, oppositely charged leptons (electrons or muons) and missing transverse momentum in proton-proton collisions at a centre-of-mass energy of 13 TeV. The data collected using the CMS detector at the LHC correspond to an integrated luminosity of 35.9fb⁻¹. The observed event yields are consistent with the expectations from the standard model. The results are interpreted in terms of pair production of charginos and neutralinos (χ⁻₁ ± and χ⁻₂⁰) with nearly degenerate masses, as expected in natural supersymmetry models with light higgsinos, as well as in terms of the pair production of top squarks (t˜), when the lightest neutralino and the top squark have similar masses. At 95% confidence level, wino-like χ⁻₁ ±/χ⁻₂⁰ masses are excluded up to 230 GeV for a mass difference of 20 GeV relative to the lightest neutralino. In the higgsino-like model, masses are excluded up to 168 GeV for the same mass difference. For t⁻ pair production, top squark masses up to 450 GeV are excluded for a mass difference of 40 GeV relative to the lightest neutralino.en_US
dc.language.isoen_USen_US
dc.rightsThis published article is made available in accordance with publisher’s policy. It may be subject to U.S. copyright law.en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/en_US
dc.titleSearch for new physics in events with two soft oppositely charged leptons and missing transverse momentum in proton–proton collisions at √s = 13 TeVen_US
dc.typeArticleen_US
dc.identifier.doi10.1016/j.physletb.2018.05.062


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This published article is made available in accordance with publisher’s policy. It may be subject to U.S. copyright law.
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