Search for physics beyond the standard model in events with a Z boson, jets, and missing transverse energy in pp collisions at sqrt(s) = 7 TeV

CMS Collaboration;Quertenmont, Loïc;Chatrchyan, Serguei;Basegmez, Suzan;Bethani, Agni;et.al.
(2012) Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 716, n° 2, p. 260-284 (2012)

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Authors
  • CMS CollaborationCERN
    Author
  • Quertenmont, LoïcUCLouvain
    Author
  • Chatrchyan, SergueiYerevan Physics Institute
    Author
  • Basegmez, SuzanUCLouvain
    Author
  • Bruno, GiacomoUCLouvain
    Author
  • Ceard, LudivineUCLouvain
    Author
  • Delaere, Christopheorcid-logoUCLouvain
    Author
  • Du Pree, TristanUCLouvain
    Author
  • Favart, DenisUCLouvain
    Author
  • Forthomme, LaurentUCLouvain
    Author
  • Giammanco, Andreaorcid-logoUCLouvain
    Author
  • Hollar, JonathanUCLouvain
    Author
  • Lemaitre, VincentUCLouvain
    Author
  • Liao, JunhuiUCLouvain
    Author
  • Nuttens, ClaudeUCLouvain
    Author
  • Pagano, DavideUCLouvain
    Author
  • Pin, ArnaudUCLouvain
    Author
  • Piotrzkowski, KrzysztofUCLouvain
    Author
  • Schul, NicolasUCLouvain
    Author
  • Bethani, Agniorcid-logoUCLouvain
    Author
  • et. al.
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Abstract
A search is presented for physics beyond the standard model (BSM) in events with a Z boson, jets, and missing transverse energy (MET). This signature is motivated by BSM physics scenarios, including supersymmetry. The study is performed using a sample of proton-proton collision data collected at sqrt(s) = 7 TeV with the CMS experiment at the LHC, corresponding to an integrated luminosity of 4.98 inverse femtobarns. The contributions from the dominant standard model backgrounds are estimated from data using two complementary strategies, the jet-Z balance technique and a method based on modeling MET with data control samples. In the absence of evidence for BSM physics, we set limits on the non-standard-model contributions to event yields in the signal regions and interpret the results in the context of simplified model spectra. Additional information is provided to facilitate tests of other BSM physics models.
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CMS Collaboration, Quertenmont, L., Chatrchyan, S., Basegmez, S., Bruno, G., Ceard, L., Delaere, C., Du Pree, T., Favart, D., Forthomme, L., Giammanco, A., Hollar, J., Lemaitre, V., Liao, J., Nuttens, C., Pagano, D., Pin, A., Piotrzkowski, K., Schul, N., et al. (2012). Search for physics beyond the standard model in events with a Z boson, jets, and missing transverse energy in pp collisions at sqrt(s) = 7 TeV. Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics, 716(2), 260-284. https://doi.org/10.1016/j.physletb.2012.08.026 (Original work published 2012)