Search for new physics in events with two soft oppositely charged leptons and missing transverse momentum in proton–proton collisions at √s=13TeV
dc.contributor.author | Sirunyan, A. M. | pt_BR |
dc.contributor.author | Silveira, Gustavo Gil da | pt_BR |
dc.contributor.author | CMS Collaboration | pt_BR |
dc.date.accessioned | 2018-09-13T02:31:49Z | pt_BR |
dc.date.issued | 2018 | pt_BR |
dc.identifier.issn | 0370-2693 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/181919 | pt_BR |
dc.description.abstract | A 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 13TeV. 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±1and χ02) 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/ χ02masses are excluded up to 230GeVfor a mass difference of 20GeVrelative to the lightest neutralino. In the higgsino-like model, masses are excluded up to 168GeVfor the same mass difference. For tpair production, top squark masses up to 450GeVare excluded for a mass difference of 40GeVrelative to the lightest neutralino. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Physics letters. B. Amsterdam. Vol. 782 (July 2018), p. 440-467 | pt_BR |
dc.rights | Open Access | en |
dc.subject | CMS | en |
dc.subject | Aceleradores de partículas | pt_BR |
dc.subject | SUSY | en |
dc.subject | Colisões proton-proton | pt_BR |
dc.subject | Leptons | pt_BR |
dc.subject | Compressed | en |
dc.subject | Leptons | en |
dc.subject | Missing energy | en |
dc.title | Search for new physics in events with two soft oppositely charged leptons and missing transverse momentum in proton–proton collisions at √s=13TeV | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 001074596 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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