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dc.date.accessioned | 2022-04-30T22:43:10Z | |
dc.date.accessioned | 2022-12-20T03:34:53Z | |
dc.date.available | 2022-04-30T22:43:10Z | |
dc.date.available | 2022-12-20T03:34:53Z | |
dc.date.created | 2022-04-30T22:43:10Z | |
dc.date.issued | 2020-01-29 | |
dc.identifier | Physical Review Letters, v. 124, n. 4, 2020. | |
dc.identifier | 1079-7114 | |
dc.identifier | 0031-9007 | |
dc.identifier | http://hdl.handle.net/11449/232972 | |
dc.identifier | 10.1103/PhysRevLett.124.041803 | |
dc.identifier | 2-s2.0-85079553149 | |
dc.identifier.uri | https://repositorioslatinoamericanos.uchile.cl/handle/2250/5413071 | |
dc.description.abstract | The first search for supersymmetry in events with an experimental signature of one soft, hadronically decaying τ lepton, one energetic jet from initial-state radiation, and large transverse momentum imbalance is presented. These event signatures are consistent with direct or indirect production of scalar τ leptons (τ) in supersymmetric models that exhibit coannihilation between the τ and the lightest neutralino (χ10), and that could generate the observed relic density of dark matter. The data correspond to an integrated luminosity of 77.2 fb-1 of proton-proton collisions at s=13 TeV collected with the CMS detector at the LHC in 2016 and 2017. The results are interpreted in a supersymmetric scenario with a small mass difference (Δm) between the chargino (χ1±) or next-to-lightest neutralino (χ20), and the χ10. The mass of the τ is assumed to be the average of the χ1± and χ10 masses. The data are consistent with standard model background predictions. Upper limits at 95% confidence level are set on the sum of the χ1±, χ20, and τ production cross sections for Δm(χ1±,χ10)=50 GeV, resulting in a lower limit of 290 GeV on the mass of the χ1±, which is the most stringent to date and surpasses the bounds from the LEP experiments. | |
dc.language | eng | |
dc.relation | Physical Review Letters | |
dc.source | Scopus | |
dc.title | Search for Supersymmetry with a Compressed Mass Spectrum in Events with a Soft τ Lepton, a Highly Energetic Jet, and Large Missing Transverse Momentum in Proton-Proton Collisions at s =13 TeV | |
dc.type | Artículos de revistas | |