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QUARKS

INSPIRE

${\mathit {\mathit t}}$

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

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

Top = $+$1

See related review:

Top Quark

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

${{\mathit t}}$ -Quark Mass (Direct Measurements)

$172.69 \pm0.30$ GeV (S = 1.3)

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

$162.5 {}^{+2.1}_{-1.5}$ GeV

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

$172.5 \pm0.7$ GeV

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

$-0.15 \pm0.20$ 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

${{\mathit F}_{{0}}}$

$0.693 \pm0.013$

${{\mathit F}_{{-}}}$

$0.315 \pm0.010$

${{\mathit F}_{{+}}}$

$-0.005 \pm0.007$

${{\mathit F}_{{{V+A}}}}$

$<0.29$ CL=95.0%

$\vert $f$_{LV}V_{tb}\vert $

$0.995 \pm0.021$

$\vert $f$_{LV}\sqrt {\vert V_{td}\vert ^2 + \vert V_{ts}\vert ^2 }\vert $

Chromo-magnetic dipole moment ${{\mathit \mu}_{{t}}}$ =${{\mathit g}_{{s}}}$ $\hat{{\mathit\mu}}_{t}/{{\mathit m}_{{t}}}$

Chromo-electric dipole moment ${{\mathit d}_{{t}}}$ = ${{\mathit g}_{{s}}}$ $\hat{{\mathit d}}_{t}/{{\mathit m}_{{t}}}$

Spin Correlation in ${{\mathit t}}{{\overline{\mathit t}}}$ Production in ${{\mathit p}}{{\overline{\mathit p}}}$ Collisions

Spin Correlation in ${{\mathit t}}{{\overline{\mathit t}}}$ Production in ${{\mathit p}}{{\mathit p}}$ Collisions

${\mathit {\mathit t}}$-quark FCNC Couplings $\kappa {}^{utg}/\Lambda $ and $\kappa {}^{ctg}/\Lambda $

${{\mathit t}}$ -Quark Yukawa Coupling from ${{\mathit t}}{{\overline{\mathit t}}}$ Kinematic Distributions in ${{\mathit p}}{{\mathit p}}$ Collisions

${\mathit \sigma (}$ ${{\mathit H}}{{\mathit t}}{{\overline{\mathit t}}}{)}$ /${\mathit \sigma (}$ ${{\mathit H}}{{\mathit t}}{{\overline{\mathit t}}}{)}_{SM}$

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

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

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit H}}$ 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

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

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

${{\mathit t}}{{\overline{\mathit t}}}$ 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 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

${{\mathit t}}{{\overline{\mathit t}}}{{\mathit \gamma}}$ 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

${{\mathit t}}$ -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

$\mathit A_{FB}$ 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

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

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

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

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

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

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

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

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

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

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

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

$<1.8\times 10^{-4}$

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

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

FOOTNOTES

Except where otherwise noted, content of the 2022 Review of Particle Physics is licensed under a Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license. The publication of the Review of Particle Physics is supported by US DOE, MEXT (Japan), INFN (Italy), JPS and CERN. Individual collaborators receive support for their PDG activities from their respective institutes or funding agencies. © 2022. See LBNL disclaimers.