${\mathit m}_{{{\mathit t}}}$ $−$ ${\mathit m}_{{{\overline{\mathit t}}}}$

Test of $\mathit CPT$ conservation. OUR AVERAGE assumes that the systematic uncertainties are uncorrelated.
VALUE (GeV) DOCUMENT ID TECN  COMMENT
 $\bf{ -0.15 \pm0.20}$ OUR AVERAGE  Error includes scale factor of 1.1.
$0.83$ ${}^{+1.79}_{-1.35}$ 1
 2021 G
CMS ${{\mathit t}}$ -channel single top production
$-0.15$ $\pm0.19$ $\pm0.09$ 2
 2017
CMS ${{\mathit \ell}}$ + $\not E_T$ +${}\geq{}$4j (${}\geq{}$1b j)
$0.67$ $\pm0.61$ $\pm0.41$ 3
 2014
ATLS ${{\mathit \ell}}$ + $\not E_T$ +${}\geq{}$4j (${}\geq{}$2 ${{\mathit b}}$ -tags)
$-1.95$ $\pm1.11$ $\pm0.59$ 4
 2013 E
CDF ${{\mathit \ell}}$ + $\not E_T$ +${}\geq{}$4j (0,1,2 b-tags)
$-0.44$ $\pm0.46$ $\pm0.27$ 5
 2012 Y
CMS ${{\mathit \ell}}$ + $\not E_T$ +${}\geq{}$4j
$0.8$ $\pm1.8$ $\pm0.5$ 6
 2011 T
D0 ${{\mathit \ell}}$ + $\not E_T$ + 4 jets (${}\geq{}$1 ${{\mathit b}}$ -tag)
• • We do not use the following data for averages, fits, limits, etc. • •
$-3.3$ $\pm1.4$ $\pm1.0$ 7
 2011 K
CDF Repl. by AALTONEN 2013E
$3.8$ $\pm3.4$ $\pm1.2$ 8
 2009 AA
D0 ${{\mathit \ell}}$ + $\not E_T$ + 4 jets (${}\geq{}$1 ${{\mathit b}}$ -tag)
 1 TUMASYAN 2021G based on 35.9 ${\mathrm {fb}}{}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 13 TeV. Events are selected by requiring 1${{\mathit \ell}}$ + 2jets(1${{\mathit b}}$ jet) final state. An average top mass of $172.13$ ${}^{+0.76}_{-0.77}$ GeV/c${}^{2}$ is obtained.
 2 CHATRCHYAN 2017 based on 19.6 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 8 TeV and an average top mass of $172.84$ $\pm0.10~$(stat) GeV is obtained.
 3 Based on 4.7 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 7 TeV and an average top mass of 172.5 GeV/c${}^{2}$.
 4 Based on 8.7 fb${}^{-1}$ of ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV and an average top mass of 172.5 GeV/c${}^{2}$.
 5 Based on 4.96 fb${}^{-1}$ of ${{\mathit p}}{{\mathit p}}$ data at $\sqrt {s }$ = 7 TeV. Based on the fitted ${\mathit m}_{{{\mathit t}}}$ for ${{\mathit \ell}^{+}}$ and ${{\mathit \ell}^{-}}$ events using the Ideogram method.
 6 Based on a matrix-element method which employs 3.6 fb${}^{-1}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV.
 7 Based on a template likelihood technique which employs 5.6 fb${}^{-1}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV.
 8 Based on 1 fb${}^{-1}$ of data in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV.
Conservation Laws:
$\mathit CPT$ INVARIANCE
References:
 TUMASYAN 2021G
JHEP 2112 161
 CHATRCHYAN 2017
PL B770 50 Measurement of the Mass Difference between Top Quark and Antiquark in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV
PL B728 363 Measurement of the Mass Difference between Top and anti-Top Quarks in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV using the ATLAS Detector
PRL 106 152001 Measurement of the Mass Difference between ${\mathit {\mathit t}}$ and ${\mathit {\overline{\mathit t}}}$ Quarks