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Pregled bibliografske jedinice broj: 672783

Search for pair production of third-generation leptoquarks and top squarks in pp collisions at sqrt(s) = 7 TeV


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 third-generation leptoquarks and top squarks in pp collisions at sqrt(s) = 7 TeV // Physical Review Letters, 110 (2013), 081801-1 doi:10.1103/PhysRevLett.110.081801 (međunarodna recenzija, članak, znanstveni)


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Naslov
Search for pair production of third-generation leptoquarks and top squarks in pp collisions at sqrt(s) = 7 TeV

Autori
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.

Izvornik
Physical Review Letters (0031-9007) 110 (2013); 081801-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
LHC; CMS; Leptoquarks; Top Squarks

Sažetak
Results are presented from a search for the pair production of third-generation scalar and vector leptoquarks, as well as for top squarks in R-parity-violating supersymmetric models. In either scenario, the new, heavy particle decays into a tau lepton and a b quark. The search is based on a data sample of pp collisions at sqrt(s) = 7 TeV, which is collected by the CMS detector at the LHC and corresponds to an integrated luminosity of 4.8 inverse femtobarns. The number of observed events is found to be in agreement with the standard model prediction, and exclusion limits on mass parameters are obtained at the 95% confidence level. Vector leptoquarks with masses below 760 GeV are excluded and, if the branching fraction of the scalar leptoquark decay to a tau lepton and a b quark is assumed to be unity, third-generation scalar leptoquarks with masses below 525 GeV are ruled out. Top squarks with masses below 453 GeV are excluded for a typical benchmark scenario, and limits on the coupling between the top squark, tau lepton, and b quark, lambda'[333] are obtained. These results are the most stringent for these scenarios to date.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
023-0982887-3064 - Potraga za Higgsovim bozonom i novom fizikom detektorom CMS (Ivica Puljak, )
098-0982887-2878 - Eksperimentalna fizika na LHC energijama (Krešo Kadija, )

Ustanove
Fakultet elektrotehnike, strojarstva i brodogradnje, Split,
Institut "Ruđer Bošković", Zagreb

Citiraj ovu publikaciju

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 third-generation leptoquarks and top squarks in pp collisions at sqrt(s) = 7 TeV // Physical Review Letters, 110 (2013), 081801-1 doi:10.1103/PhysRevLett.110.081801 (međunarodna recenzija, članak, znanstveni)
Chatrchyan, S., ..., Godinović, N., Lelas, D., Pleština, R., Polić, D., Puljak, I., Antunović, Ž., Kovač, M. & Brigljević, V. (2013) Search for pair production of third-generation leptoquarks and top squarks in pp collisions at sqrt(s) = 7 TeV. Physical Review Letters, 110, 081801-1 doi:10.1103/PhysRevLett.110.081801.
@article{article, year = {2013}, pages = {081801-1-081801-16}, DOI = {10.1103/PhysRevLett.110.081801}, keywords = {LHC, CMS, Leptoquarks, Top Squarks}, journal = {Physical Review Letters}, doi = {10.1103/PhysRevLett.110.081801}, volume = {110}, issn = {0031-9007}, title = {Search for pair production of third-generation leptoquarks and top squarks in pp collisions at sqrt(s) = 7 TeV}, keyword = {LHC, CMS, Leptoquarks, Top Squarks} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE


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