${{\mathit t}}$-quark Polarization in ${{\mathit t}}{{\overline{\mathit t}}}$ Events in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

INSPIRE   PDGID:
Q007PL8
A$_{t}$, A$_{{{\overline{\mathit t}}}}$, A$_{CPC}$, A$_{CPV}$, and A$_{C}$ are defined in header texts in the subsections, just above.
VALUE DOCUMENT ID TECN  COMMENT
• • We do not use the following data for averages, fits, limits, etc. • •
$-0.044$ $\pm0.038$ $\pm0.027$ 1
AABOUD
2017G
 ATLS A$_{{{\mathit t}}}$
$-0.064$ $\pm0.040$ $\pm0.027$ 1
AABOUD
2017G
 ATLS A$_{{{\overline{\mathit t}}}}$
$0.296$ $\pm0.093$ $\pm0.037$ 1
AABOUD
2017G
 ATLS A$_{C}$
$-0.022$ $\pm0.058$ 2
KHACHATRYAN
2016AI
 CMS A$_{CPC}$
$0.000$ $\pm0.016$ 2
KHACHATRYAN
2016AI
 CMS A$_{CPV}$
1  AABOUD 2017G based on 20.2 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data, using events with two leptons and two or more jets with at least one ${{\mathit b}}$-tag. Determined from measurements of 15 top quark spin observables. The second error corresponds to a variation of ${\mathit m}_{{{\mathit t}}}$ about 172.5 GeV by 0.7 GeV. The values are consistent with the NLO SM predictions.
2  KHACHATRYAN 2016AI based on 19.5 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 8 TeV, using events with two leptons and two or more jets with at least one ${{\mathit b}}$-tag. Determined from the lepton angular distributions as a function of the ${{\mathit t}}{{\overline{\mathit t}}}$ -system kinematical variables.
References:
AABOUD 2017G
JHEP 1703 113 Measurements of top Quark Spin Observables in ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Events using Dilepton Final States in $\sqrt {s }$ = 8 TeV ${{\mathit p}}{{\mathit p}}$ Collisions with the ATLAS Detector
KHACHATRYAN 2016AI
PR D93 052007 Measurements of ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Spin Correlations and Top Quark Polarization using Dilepton Final States in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV