Search for supersymmetry in electroweak production with photons and large missing transverse energy in pp collisions at sqrt(s) = 8 TeV

CMS;Basegmez, Suzan;Beluffi, Camille;Bondu, Olivier;Vidal Maroño, Miguel;et.al.
(2016) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. B759, n° 759, p. 479-500 (2016)

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Authors
  • CMSUCLouvain
    Author
  • Basegmez, SuzanUCLouvain
    Author
  • Beluffi, CamilleUCLouvain
    Author
  • Bondu, OlivierUCLouvain
    Author
  • Brochet, SébastienUCLouvain
    Author
  • Bruno, GiacomoUCLouvain
    Author
  • Caudron, AdrienUCLouvain
    Author
  • Ceard, LudivineUCLouvain
    Author
  • Delaere, Christopheorcid-logoUCLouvain
    Author
  • Favart, DenisUCLouvain
    Author
  • Forthomme, LaurentUCLouvain
    Author
  • Giammanco, Andreaorcid-logoUCLouvain
    Author
  • Jafari, AbidehUCLouvain
    Author
  • Jez, PavelUCLouvain
    Author
  • Komm, MatthiasUCLouvain
    Author
  • Lemaitre, VincentUCLouvain
    Author
  • Mertens, AlexandreUCLouvain
    Author
  • Musich, MarcoUCLouvain
    Author
  • Nuttens, ClaudeUCLouvain
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  • Perrini, LuciaUCLouvain
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  • Piotrzkowski, KrzysztofUCLouvain
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  • Popov, AndreyUCLouvain
    Author
  • Quertenmont, LoïcUCLouvain
    Author
  • Selvaggi, MicheleUCLouvain
    Author
  • Vidal Maroño, MiguelUCLouvain
    Author
  • et. al.
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Abstract
Results are reported from a search for supersymmetry with gauge-mediated supersymmetry breaking in electroweak production. Final states with photons and large missing transverse energy ( ETmiss) were examined. The data sample was collected in pp collisions at (View the MathML source) with the CMS detector at the LHC and corresponds to 7.4 (√s = 8TeV). The analysis focuses on scenarios in which the lightest neutralino has bino- or wino-like components, resulting in decays to photons and gravitinos, where the gravitinos escape undetected. The data were obtained using a specially designed trigger with dedicated low thresholds, providing good sensitivity to signatures with photons, (ETmiss), and low hadronic energy. No excess of events over the standard model expectation is observed. The results are interpreted using the model of general gauge mediation. With the wino mass fixed at 10GeV above that of the bino, wino masses below 710GeV are excluded at 95% confidence level. Constraints are also set in the context of two simplified models, for which the analysis sets the lowest cross section limits on the electroweak production of supersymmetric particles
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CMS, Basegmez, S., Beluffi, C., Bondu, O., Brochet, S., Bruno, G., Caudron, A., Ceard, L., Delaere, C., Favart, D., Forthomme, L., Giammanco, A., Jafari, A., Jez, P., Komm, M., Lemaitre, V., Mertens, A., Musich, M., Nuttens, C., et al. (2016). Search for supersymmetry in electroweak production with photons and large missing transverse energy in pp collisions at sqrt(s) = 8 TeV. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, B759(759), 479-500. https://doi.org/10.1016/j.physletb.2016.05.088 (Original work published 2016)