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INSPIRE JSON PDGID:

${\mathit {\mathit t}}$

$I(J^P)$ = $0(1/2^{+})$

Charge = ${2\over 3}$ $\mathit e$

Top = $+$1

See related review:

Top Quark

▸	${{\mathit t}}$-QUARK MASS

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

$-0.15 \pm0.20$ GeV (S = 1.1)

${\mathit {\mathit t}}$-quark DECAY WIDTH

$1.42 {}^{+0.19}_{-0.15}$ GeV (S = 1.4)

▸	${\mathit {\mathit t}}$-quark EW Couplings

Single ${{\mathit t}}$-Quark Production Cross Section in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.8 TeV

Single ${{\mathit t}}$-Quark Production Cross Section in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV

Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 5.02 TeV

t-channel Single ${{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

t-channel Single ${{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

s-channel Single ${{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

t-channel Single ${{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13$~$TeV

s-channel Single ${{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13$~$TeV

${{\mathit W}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

${{\mathit W}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

${{\mathit W}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit W}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13.6 TeV

${{\mathit Z}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit H}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit \gamma}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\mathit W}}{{\mathit Z}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

$350 \pm110$ fb

Single ${{\mathit t}}$-Quark Production Cross Section in ${{\mathit e}}{{\mathit p}}$ Collisions

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.8 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV

Ratio of the Production Cross Sections of ${{\mathit t}}{{\overline{\mathit t}}}{{\mathit \gamma}}$ to ${{\mathit t}}{{\overline{\mathit t}}}$ at $\sqrt {s }$ = 1.96 TeV

${{\mathit t}}{{\mathit t}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

${{\mathit t}}{{\mathit t}}$ or ${{\overline{\mathit t}}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 5.02 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13.6 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}$-Nucleus Collisions

${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in Nucleus-Nucleus Collisions

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit W}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit W}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit Z}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit Z}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit \gamma}}$ Production Cross Section in pp Collisions at $\sqrt {s }$ = 13 TeV

f(Q$_{0}$): ${{\mathit t}}{{\overline{\mathit t}}}$ Fraction of Events with a Veto on Additional Central Jet Activity in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

Fraction of ${{\mathit t}}{{\overline{\mathit t}}}$ + multi-jet Events in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Charge Asymmetry (A$_{C}$) in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Charge Asymmetry (A$_{C}$) in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 8 TeV

${{\mathit t}}{{\overline{\mathit t}}}$ Charge Asymmetry (A$_{C}$) in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit W}}$ leptonic Charge Asymmetry (A${}^{{{\mathit \ell}}}_{ C}$) in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit \gamma}}$ Charge Asymmetry (A$_{C}$) in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit t}}$-quark Polarization in ${{\mathit t}}{{\overline{\mathit t}}}$ Events in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV

${{\mathit t}}$-quark Polarization in ${{\mathit t}}{{\overline{\mathit t}}}$ Events in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

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

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

${{\mathit t}}$-quark Polarization in Single Top Events in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 13 TeV

${{\mathit g}}$ ${{\mathit g}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}$ Fraction in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV

$A_{FB}$ of ${{\mathit t}}{{\overline{\mathit t}}}$ in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions at $\sqrt {s }$ = 1.96 TeV

${{\mathit t}}$-Quark Electric Charge

${\mathit {\mathit t}}$ DECAY MODES ▸ Expand all decays

${{\mathit W}}{{\mathit q}}$ (${{\mathit q}}$ = ${{\mathit b}}$, ${{\mathit s}}$, ${{\mathit d}}$)

${{\mathit W}}{{\mathit b}}$

${{\mathit e}}{{\mathit \nu}_{{{e}}}}{{\mathit b}}$

$(11.10\pm{0.30})\%$

${{\mathit \mu}}{{\mathit \nu}_{{{\mu}}}}{{\mathit b}}$

$(11.40\pm{0.20})\%$

${{\mathit \tau}}{{\mathit \nu}_{{{\tau}}}}{{\mathit b}}$

$(10.7\pm{0.5})\%$

${{\mathit q}}{{\overline{\mathit q}}}{{\mathit b}}$

$(66.5\pm{1.4})\%$

${{\mathit \gamma}}{{\mathit q}}$ (${{\mathit q}}={{\mathit u}},{{\mathit c}}$)

$<9.5\times 10^{-6}$

${{\mathit H}^{+}}{{\mathit b}}$ , ${{\mathit H}^{+}}$ $\rightarrow$ ${{\mathit \tau}}{{\mathit \nu}_{{{\tau}}}}$

${{\mathit a}}{{\mathit q}}$ (${{\mathit q}}={{\mathit u}}$ , ${{\mathit c}}$)

$<1\times 10^{-3}$

▸	$\Delta \mathit T$ = 1 weak neutral current ($\mathit T1$) modes

▸	Lepton Family number ($\mathit LF$) violating modes

▸	Baryon number ($\mathit B$) violating modes

FOOTNOTES

Except where otherwise noted, content of the 2025 Review of Particle Physics is licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT and KEK (Japan), INFN (Italy) and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2025. See LBNL disclaimers.