Compact Muon Solenoid
LHC, CERN
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| CMS-PAS-TOP-14-005 | ||
| Search for Anomalous Top Chromomagnetic Dipole Moments from angular distributions in $ \mathrm{ t\bar{t} } $ Dileptonic events at $\sqrt{s} =$ 7 TeV with the CMS detector. | ||
| CMS Collaboration | ||
| 2014 | ||
| Abstract: A search for new physics in the form of a top quark chromo-magnetic anomalous coupling is performed using a previous measurement of the differential $\mathrm{t\bar{t}}$ cross section as a function of the difference in azimuthal angle between the two charged leptons, $|\Delta \phi_{ \ell \ell }|$, in the dilepton decay mode. The measured value of $ \mathrm{Re}( \hat{\mu}_t )$ is 0.037 $\pm$ 0.041 and no sign of new physics is observed.Limits on the real part of the chromomagnetic dipole moment $ \mathrm{Re}( \hat{\mu}_t ) $ are determined at 95% Confidence Level as -0.043 $< \mathrm{Re}( \hat{\mu}_t ) < $ 0.117. | ||
| Links: CDS record (PDF) ; inSPIRE record ; Public twiki page ; CADI line (restricted) ; | ||
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Compact Muon Solenoid LHC, CERN |
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