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“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 12064
School of Particles and Accelerator
  Title:   Search for supersymmetry in pp collisions at p s = 7 TeV in events with a single lepton, jets, and missing transverse momentum
  Author(s): 
1.  Hessamadin Arfaei
2.  Hamed Bakhshiansohi
3.  Seyed Mohsen Etesami
4.  Ali Fahim
5.  Majid Hashemi
6.  Hoda Hesari
7.  Abideh Jafari
8.  Mohsen Khakzad
9.  A Mohammadi
10.  Mojtaba Mohammadi Najafabadi
11.  Saeid Paktinat
12.  Batool Safarzadeh
13.  Maryam Zeinali
  Status:   Published
  Journal: JHEP
  No.:  156
  Vol.:  1108
  Year:  2011
  Supported by:  IPM
  Abstract:
Results are reported from a search for physics beyond the standard model in protonproton collisions at a center-of-mass energy of 7 TeV, focusing on the signature with a single, isolated, high-transverse-momentum lepton (electron or muon), energetic jets, and large missing transverse momentum. The data sample comprises an integrated luminosity of 36 pb-1 , recorded by the CMS experiment at the LHC. The search is motivated by models of new physics, including supersymmetry. The observed event yields are consistent with standard model backgrounds predicted using control samples obtained from the data. The characteristics of the event sample are consistent with those expected for the production of tt and W+jets events. The results are interpreted in terms of limits on the parameter space for the constrained minimal supersymmetric extension of the standard model

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