# ${\boldsymbol m}_{{{\boldsymbol t}}}$ $−$ ${\boldsymbol m}_{{{\overline{\boldsymbol t}}}}$ INSPIRE search

Test of $\mathit CPT$ conservation. OUR AVERAGE assumes that the systematic uncertainties are uncorrelated.
VALUE (GeV) DOCUMENT ID TECN  COMMENT
$\bf{ -0.16 \pm0.19}$ OUR AVERAGE
$-0.15$ $\pm0.19$ $\pm0.09$ 1
 2017
CMS ${{\mathit \ell}}$ + $\not E_T$ +${}\geq{}$4j (${}\geq{}$1b j)
$0.67$ $\pm0.61$ $\pm0.41$ 2
 2014
ATLS ${{\mathit \ell}}$ + $\not E_T$ +${}\geq{}$4j (${}\geq{}$2 ${{\mathit b}}$-tags)
$-1.95$ $\pm1.11$ $\pm0.59$ 3
 2013 E
CDF ${{\mathit \ell}}$ + $\not E_T$ +${}\geq{}$4j (0,1,2 b-tags)
$-0.44$ $\pm0.46$ $\pm0.27$ 4
 2012 Y
CMS ${{\mathit \ell}}$ + $\not E_T$ +${}\geq{}$4j
$0.8$ $\pm1.8$ $\pm0.5$ 5
 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. • • •
$-3.3$ $\pm1.4$ $\pm1.0$ 6
 2011 K
CDF Repl. by AALTONEN 2013E
$3.8$ $\pm3.4$ $\pm1.2$ 7
 2009 AA
D0 ${{\mathit \ell}}$ + $\not E_T$ + 4 jets (${}\geq{}$1 ${{\mathit b}}$-tag)
1  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.
2  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${}^{2}$.
3  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${}^{2}$.
4  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.
5  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.
6  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.
7  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:
 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