Yayın: Search for Top-Quark Partners with Charge5/3in the Same-Sign Dilepton Final State
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Tarih
Danışman
Bölüm / Program
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
American Physical Society (APS)
Türü
Özet
A search for the production of heavy partners of the top quark with charge 5/3 is performed in events with a pair of same-sign leptons. The data sample corresponds to an integrated luminosity of 19.5 inverse femtobarns and was collected at sqrt(s) = 8 TeV by the CMS experiment. No significant excess is observed in the data above the expected background and the existence of top-quark partners with masses below 800 GeV is excluded at a 95% confidence level, assuming they decay exclusively to tW. This is the first limit on these particles from the LHC, and it is significantly more restrictive than previous limits.
Replaced with published version. Added journal reference and DOI
Replaced with published version. Added journal reference and DOI
Tanım
Dergi veya Seri
Physical Review Letters
ISSN
0031-9007
ISBN
Haklar
OPEN
Anahtar Kelimeler
same sign [dilepton], interaction [p p], Atlas detector, exotic: pair production [quark], Nuclear Physic, Particle physics, Large hadron collider, CMS, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), Theoretical, Models, CERN, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], info:eu-repo/classification/ddc/530, p p: interaction, GeV-cms, [Anahtar Kelime Yok], dilepton: same sign, CMS, Physics, dilepton: final state, ddc:530, Nuclear Physics, Elementary Particles, Models, Theoretical, Physics and Astronomy (all), Couplings, new particle: search for, channel cross section: branching ratio: upper limit, quark --> top W+, CERN LHC Coll, lower limit [mass], Particle Physics, LHC, CMS, Top Quark, Physique des particules élémentaires, LHC, CMS, HEP, Particle physics, LHC, charge: 5/3, multiplicity [jet], physics, signature, Dileptons, Elementary Particles, /3 [charge], CERN, CMS, New Physics, Charge, Dileptons, New Physics, cms, Atlas detector, mass: lower limit, Elementary Particle, Nuclear Physics, Elementary Particles, Models, Theoretical, Medicine (all), Physics and Astronomy (all), FOS: Physical sciences, jet: multiplicity, search for [new particle], W --> lepton neutrino, Charge, quark: exotic: pair production, Physics and Astronomy (all), final state [dilepton], Higgs-boson, Atlas detector, HIGGS-BOSON, LHC, Couplings, Nuclear Physics, branching ratio: upper limit [channel cross section], info:eu-repo/classification/ddc/550, background, Models, Theoretical, Top quark, Large hadron collider, QC Physics / fizika, Couplings, top --> W+ bottom, HIGGS-BOSON, experimental results