${{\mathit t}}$-QUARK MASS

We first list the direct measurements of the top quark mass which employ the event kinematics and then list the measurements which extract a top quark mass from the measured ${{\mathit t}}{{\overline{\mathit t}}}$ cross-section using theory calculations. A discussion of the definition of the top quark mass in these measurements can be found in the review “The Top Quark.''
For earlier search limits see PDG 1996, Physical Review D54 1 (1996). We no longer include a compilation of indirect top mass determinations from Standard Model Electroweak fits in the Listings (our last compilation can be found in the Listings of the 2007 partial update). For a discussion of current results see the reviews "The Top Quark" and "Electroweak Model and Constraints on New Physics."

${{\mathit t}}$-Quark Mass from Cross-Section Measurements

INSPIRE   JSON  (beta) PDGID:
Q007TP2
The top quark $\overline{\rm{}MS}$ or pole mass can be extracted from a measurement of ${\mathit \sigma (}{{\mathit t}}{{\overline{\mathit t}}}{)}$ by using theory calculations. We quote below the $\overline{\rm{}MS}$ mass. See the review “The Top Quark” and references therein for more information.
VALUE (GeV) DOCUMENT ID TECN  COMMENT
$\bf{ 162.5 {}^{+2.1}_{-1.5}}$ OUR AVERAGE
$162.9$ $\pm0.5$ $\pm1.0$ ${}^{+2.1}_{-1.2}$ 1
AAD
2019G
 ATLS ${{\mathit \ell}}+\not E_T$+ ${}\geq{}$5 ${{\mathit j}}$ (2${{\mathit b}}-{{\mathit j}}$)
$160.0$ ${}^{+4.8}_{-4.3}$ 2
ABAZOV
2011S
 D0 ${\mathit \sigma (}{{\mathit t}}{{\overline{\mathit t}}}{)}$ + theory
• • We do not use the following data for averages, fits, limits, etc. • •
3
ABAZOV
2009AG
 D0 cross sects, theory + exp
4
ABAZOV
2009R
 D0 cross sects, theory + exp
1  AAD 2019G based on 20.2 fb${}^{-1}$ of data in ${{\mathit p}}{{\mathit p}}$ collisions at $\sqrt {s }$ = 8 TeV. Normalized ${{\mathit t}}{{\overline{\mathit t}}}$ + 1-jet differential cross section as a function of ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit j}}$ invariant mass is measured in the ${{\mathit \ell}}$ + jets mode. The unfolded parton-level distribution is compared with the NLO QCD prediction. The three errors are from statitics, systematics, and theory.
2  Based on 5.3 fb${}^{-1}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ collisions at $\sqrt {s }$ = 1.96 TeV. ABAZOV 2011S uses the measured ${{\mathit t}}{{\overline{\mathit t}}}$ production cross section of $8.13$ ${}^{+1.02}_{-0.90}$ pb $\lbrack{}$ABAZOV 2011E] in the lepton plus jets channel to obtain the top quark $\overline{\rm{}MS}$ mass by using an approximate NNLO computation (MOCH 2008, LANGENFELD 2009). The corresponding top quark pole mass is $167.5$ ${}^{+5.4}_{-4.9}$ GeV. A different theory calculation (AHRENS 2010, AHRENS 2010A) is also used and yields m${}^{\overline{\rm{}MS}}_{t}$ = $154.5$ ${}^{+5.0}_{-4.3}$ GeV.
3  Based on 1 fb${}^{-1}$ of data at $\sqrt {s }$ = 1.96 TeV. Uses the ${{\mathit \ell}}$ + jets, ${{\mathit \ell}}{{\mathit \ell}}$, and ${{\mathit \ell}}{{\mathit \tau}}$ + jets channels. ABAZOV 2009AG extract the pole mass of the top quark using two different calculations that yield $169.1$ ${}^{+5.9}_{-5.2}$ GeV (MOCH 2008, LANGENFELD 2009) and $168.2$ ${}^{+5.9}_{-5.4}$ GeV (KIDONAKIS 2008).
4  Based on 1 fb${}^{-1}$ of data at $\sqrt {s }$ = 1.96 TeV. Uses the ${{\mathit \ell}}{{\mathit \ell}}$ and ${{\mathit \ell}}{{\mathit \tau}}$ + jets channels. ABAZOV 2009R extract the pole mass of the top quark using two different calculations that yield $173.3$ ${}^{+9.8}_{-8.6}$ GeV (MOCH 2008, LANGENFELD 2009) and $171.5$ ${}^{+9.9}_{-8.8}$ GeV (CACCIARI 2008).
References