Measurement of the mass of the top quark in decays with a $J/\psi$ meson in pp collisions at 8 TeV - INSPIRE

DataBETA

Measurement of the mass of the top quark in decays with a $J/\psi$ meson in pp collisions at 8 TeV

CMS

Collaboration

Aug 11, 2016

36 pages

Published in:

JHEP 12 (2016) 123

Published: Dec 22, 2016

e-Print:

1608.03560 [hep-ex]

DOI:

10.1007/JHEP12(2016)123

PDG:

{{\mathit t}}

-Quark Mass (Direct Measurements)

Report number:

CMS-TOP-15-014,
CERN-EP-2016-202

Experiments:

CERN-LHC-CMS

View in:

reference search41 citations

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Abstract: (Springer)

A first measurement of the top quark mass in the decay channel t → (W → ℓν) (b → J/ψ + X → μ

^{+}

μ

^{−}

+ X) is presented. The analysis uses events selected from the proton-proton collisions recorded by the CMS detector at the LHC at a center-of-mass energy of 8 TeV. The data correspond to an integrated luminosity of 19.7 fb

^{−1}

, with 666

\mathrm{t}\overline{\mathrm{t}}

and single top quark candidate events containing a reconstructed J/ψ candidate decaying into an oppositely-charged muon pair. The mass of the (J/ψ + ℓ) system, where ℓ is an electron or a muon from W boson decay, is used to extract a top quark mass of 173.5 ± 3.0 (stat) ± 0.9 (syst) GeV.

Note:

Replaced with the published version. Added the journal reference and DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/TOP-15-014/index.html

Hadron-Hadron scattering (experiments)
Top physics
p p: colliding beams
top: mass: measured
p p: scattering
top: pair production
top: single production
top: decay
W: leptonic decay
muon: pair production

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