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Search for pair production of first- and second-generation scalar leptoquarks in pp collisions at sqrt(s)= 7 TeV (CROSBI ID 201236)

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(CMS Collaboration) Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko et al. Search for pair production of first- and second-generation scalar leptoquarks in pp collisions at sqrt(s)= 7 TeV // Physical review. D, Particles, fields, gravitation, and cosmology, 86 (2012), 5; 052013, 23. doi: 10.1103/PhysRevD.86.052013

Podaci o odgovornosti

Chatrchyan, S. ; ... ; Godinović, Nikola ; Lelas, Damir ; Pleština, Roko ; Polić, Dunja ; Puljak, Ivica ; Antunović, Željko ; Kovač, Marko ; Brigljević, Vuko ; Đurić, Senka ; Kadija, Krešo ; Luetić, Jelena ; Morović, Srećko ; ... ; Mekterović, Darko ; ... ; Swanson, J.

CMS Collaboration

engleski

Search for pair production of first- and second-generation scalar leptoquarks in pp collisions at sqrt(s)= 7 TeV

Results are presented from a search for the pair production of first- and second-generation scalar leptoquarks in proton-proton collisions at sqrt(s)= 7 TeV. The data sample corresponds to an integrated luminosity of 5.0 inverse femtobarns, collected by the CMS detector at the LHC. The search signatures involve either two charged leptons of the same-flavour (electrons or muons) and at least two jets, or a single charged lepton (electron or muon), missing transverse energy, and at least two jets. If the branching fraction of the leptoquark decay into a charged lepton and a quark is assumed to be beta=1, leptoquark pair production is excluded at the 95% confidence level for masses below 830 GeV and 840 GeV for the first and second generations, respectively. For beta = 0.5, masses below 640 GeV and 650 GeV are excluded. These limits are the most stringent to date.

LHC ; CMS ; leptoquarks

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Podaci o izdanju

86 (5)

2012.

052013

23

objavljeno

1550-7998

1550-2368

10.1103/PhysRevD.86.052013

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