pdgLive

2017

CMS

${{\mathit \ell}}$ +$\not E_T+{}\geq{}$4j (${}\geq{}1{{\mathit b}}$ )

$173.6$ $\pm2.1$ ${}^{+4.5}_{-4.0}$ $\pm3.8$

2016

CMS

${{\mathit e}}$ + ${{\mathit \mu}}$ + $\not E_T$ + ${}\geq{}$0j

$181.2$ $\pm2.8$ ${}^{+10.8}_{-10.6}$

2015

ATLS

${{\mathit e}}$ + ${{\mathit \mu}}$ + $\not E_T$ + ${}\geq{}$0j

$178$ $\pm3$ $\pm16$ $\pm3$

⁴

2015

ATLS

${{\mathit \ell}}$ +jets, ${{\mathit \ell}}{{\mathit \ell}}$ +jets, ${{\mathit \ell}}{{\mathit \tau}_{{h}}}$ +jets

⁵

AAIJ

2015

LHCB

${{\mathit \mu}}$ +${}\geq{}$1j(${{\mathit b}}$ -tag) forward region

$182.9$ $\pm3.1$ $\pm6.4$

⁶

2014

ATLS

${{\mathit e}}$ + ${{\mathit \mu}}$ + 1 or 2${{\mathit b}}$ jets

$194$ $\pm18$ $\pm46$

⁷

ATLS

${{\mathit \tau}_{{h}}}$ + $\not E_T$ + ${}\geq{}$5j (${}\geq{}2{{\mathit b}}$ )

$139$ $\pm10$ $\pm26$

⁸

CMS

${}\geq{}$6 jets with 2 b-tags

$158.1$ $\pm2.1$ $\pm10.8$

⁹

CMS

${{\mathit \ell}}$ + $\not E_T$ + jets(${}\geq{}$1 b-tag)

$152$ $\pm12$ $\pm32$

¹⁰

CMS

${{\mathit \tau}_{{h}}}$ + $\not E_T$+ ${}\geq{}$4 jets (${}\geq{}$1 b)

$177$ $\pm20$ $\pm14$ $\pm7$

¹¹

ATLS

Repl. by AAD 2012BF

$176$ $\pm5$ ${}^{+14}_{-11}$ $\pm8$

¹²

ATLS

${{\mathit \ell}}{{\mathit \ell}}$ +$\not E_T+{}\geq{}$2j

$187$ $\pm11$ ${}^{+18}_{-17}$ $\pm6$

¹³

ATLS

${{\mathit \ell}}$ + $\not E_T$ + ${}\geq{}$ 3j with ${{\mathit b}}$ -tag

$186$ $\pm13$ $\pm20$ $\pm7$

¹⁴

ATLS

${{\mathit \ell}}$ + ${{\mathit \tau}_{{h}}}$ + $\not E_T+{}\geq{}$2j (${}\geq{}1{{\mathit b}}$ )

$143$ $\pm14$ $\pm22$ $\pm3$

¹⁵

CMS

${{\mathit \ell}}$ + ${{\mathit \tau}_{{h}}}$ + $\not E_T+{}\geq{}$2j (${}\geq{}1{{\mathit b}}$ )

$161.9$ $\pm2.5$ ${}^{+5.1}_{-5.0}$ $\pm3.6$

¹⁶

CMS

${{\mathit \ell}}{{\mathit \ell}}$ + $\not E_T$ + ${}\geq{}$ 2${{\mathit b}}$

$145$ $\pm31$ ${}^{+42}_{-27}$

¹⁷

ATLS

${{\mathit \ell}}$ +$\not E_T+{}\geq{}$4j, ${{\mathit \ell}}{{\mathit \ell}}$ +$\not E_T+{}\geq{}$2j

$173$ ${}^{+39}_{-32}$ $\pm7$

¹⁸

CMS

${{\mathit \ell}}$ + $\not E_T$ + ${}\geq{}$3 jets

$168$ $\pm18$ $\pm14$ $\pm7$

¹⁹

CMS

${{\mathit \ell}}{{\mathit \ell}}$ + $\not E_T$ + jets

$154$ $\pm17$ $\pm6$

²⁰

CMS

Combination

$194$ $\pm72$ $\pm24$ $\pm21$

²¹

CMS

${{\mathit \ell}}{{\mathit \ell}}$ + $\not E_T$ + ${}\geq{}$2 jets

KHACHATRYAN 2017B based on 5.0 fb${}^{-1}$ of data, using a binned likelihood fit of templates to the data. Also the ratio ${\mathit \sigma (}$ ${{\mathit t}}{{\overline{\mathit t}}}$ ; 8 TeV${)}/{\mathit \sigma (}$ ${{\mathit t}}{{\overline{\mathit t}}}$ ; 7 TeV${)}$ = $1.43$ $\pm0.04$ $\pm0.07$ $\pm0.05$ is reported. The results are in agreement with NNLO SM predictions.

²	KHACHATRYAN 2016AW based on 5.0 fb${}^{-1}$ of data, using a binned likelihood fit to differential distributions of ${{\mathit b}}$ -tagged and non-${{\mathit b}}$ -tagged jets. The result is in good agreement with NNLO SM predictions.

Based on 4.6 fb${}^{-1}$ of data. Uses a template fit to distributions of $\not E_T$ and jet multiplicities to measure simultaneously ${{\mathit t}}{{\overline{\mathit t}}}$ , ${{\mathit W}}{{\mathit W}}$ , and ${{\mathit Z}}$ / ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit \tau}}{{\mathit \tau}}$ cross sections, assuming ${\mathit m}_{{{\mathit t}}}$ = 172.5 GeV.

⁴	AAD 2015CC based on 4.6 fb${}^{-1}$ of data. The event selection criteria are optimized for the ${{\mathit \ell}}{{\mathit \tau}_{{h}}}$ + jets channel. Using only this channel $183$ $\pm9$ $\pm23$ $\pm3$ pb is derived for the cross section.

⁵

AAIJ 2015R, based on 1.0 fb${}^{-1}$ of data, reports $0.239$ $\pm0.053$ $\pm0.033$ $\pm0.024$ pb cross section for the forward fiducial region ${{\mathit p}_{{T}}}$ (${{\mathit \mu}}$ ) $>$ 25 GeV, 2.0 $<$ ${{\mathit \eta}}$ (${{\mathit \mu}}$ ) $<$ 4.5, 50 GeV $<$ ${{\mathit p}_{{T}}}$ (${{\mathit b}}$ ) $<$ 100 GeV, 2.2 $<$ ${{\mathit \eta}}$ (${{\mathit b}}$ ) $<$ 4.2, ${{\mathit \Delta}}{{\mathit R}}$ (${{\mathit \mu}}$ ,${{\mathit b}}$ ) $>$ 0.5, and ${{\mathit p}_{{T}}}$ (${{\mathit \mu}}$ +${{\mathit b}}$ ) $>$ 20 GeV. The three errors are from statistics, systematics, and theory. The result agrees with the SM NLO prediction.

⁶

AAD 2014AY reports $182.9$ $\pm3.1$ $\pm4.2$ $\pm3.6$ $\pm3.3$ pb value based on 4.6 fb${}^{-1}$ of data. The four errors are from statistics, systematic, luminosity, and the 0.66$\%$ beam energy uncertainty. We have combined the systematic uncertainties in quadrature. The result is for ${\mathit m}_{{{\mathit t}}}$ = 172.5GeV; for other ${\mathit m}_{{{\mathit t}}}$, ${\mathit \sigma (}{\mathit m}_{{{\mathit t}}}{)}$ = $\sigma $(172.5GeV)${\times }[1-0.0028{\times }({\mathit m}_{{{\mathit t}}}-172.5$GeV)]. The result is consistent with the SM prediction at NNLO.

⁷	Based on 1.67 fb${}^{-1}$ of data. The result uses the acceptance for ${\mathit m}_{{{\mathit t}}}$ = 172.5 GeV.

⁸	Based on 3.54 fb${}^{-1}$ of data.

⁹	Based on 2.3 fb${}^{-1}$ of data.

¹⁰	Based on 3.9 fb${}^{-1}$ of data.

¹¹	Based on 35 pb${}^{-1}$ of data for an assumed top quark mass of ${\mathit m}_{{{\mathit t}}}$ = 172.5 GeV.

¹²	Based on 0.70 fb${}^{-1}$ of data. The 3 errors are from statistics, systematics, and luminosity. The result uses the acceptance for ${\mathit m}_{{{\mathit t}}}$ = 172.5 GeV.

¹³	Based on 35 pb${}^{-1}$ of data. The 3 errors are from statistics, systematics, and luminosity. The result uses the acceptance for ${\mathit m}_{{{\mathit t}}}$ = 172.5 GeV and $173$ $\pm17$ ${}^{+18}_{-16}$ $\pm6$ pb is found without the ${{\mathit b}}$ -tag.

¹⁴	Based on 2.05 fb${}^{-1}$ of data. The hadronic ${{\mathit \tau}}$ candidates are selected using a BDT technique. The 3 errors are from statistics, systematics, and luminosity. The result uses the acceptance for ${\mathit m}_{{{\mathit t}}}$ = 172.5 GeV.

¹⁵	Based on 2.0 fb${}^{-1}$ and 2.2 fb${}^{-1}$ of data for ${{\mathit \ell}}$ = ${{\mathit e}}$ and ${{\mathit \ell}}$ = ${{\mathit \mu}}$ , respectively. The 3 errors are from statistics, systematics, and luminosity. The result uses the acceptance for ${\mathit m}_{{{\mathit t}}}$ = 172.5 GeV.

¹⁶	Based on 2.3 fb${}^{-1}$ of data. The 3 errors are from statistics, systematics, and luminosity. The result uses the profile likelihood-ratio (PLB) method and an assumed ${\mathit m}_{{{\mathit t}}}$ of 172.5 GeV.

¹⁷	Based on 2.9 pb${}^{-1}$ of data. The result for single lepton channels is $142$ $\pm34$ ${}^{+50}_{-31}$ pb, while for the dilepton channels is $151$ ${}^{+78}_{-62}{}^{+37}_{-24}$ pb.

¹⁸	Result is based on 36 pb${}^{-1}$ of data. The first uncertainty corresponds to the statistical and systematic uncertainties, and the second corresponds to the luminosity.

¹⁹

Based on 36 pb${}^{-1}$ of data. The ratio of ${{\mathit t}}{{\overline{\mathit t}}}$ and ${{\mathit Z}}$ /${{\mathit \gamma}^{*}}$ cross sections is measured as ${\mathit \sigma (}$ ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit t}}{{\overline{\mathit t}}}{)}/{\mathit \sigma (}$ ${{\mathit p}}$ ${{\mathit p}}$ $\rightarrow$ ${{\mathit Z}}$ / ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit e}^{+}}{{\mathit e}^{-}}$ / ${{\mathit \mu}^{+}}{{\mathit \mu}^{-}}{)}$ = $0.175$ $\pm0.018$(stat)$\pm0.015$(syst) for 60 $<$ ${\mathit m}_{\mathrm { {{\mathit \ell}} {{\mathit \ell}} }}<$ 120 GeV, for which they use an NNLO prediction for the denominator cross section of $972$ $\pm42$ pb.

²⁰

Result is based on 36 pb${}^{-1}$ of data. The first error is from statistical and systematic uncertainties, and the second from luminosity. This is a combination of a measurement in the dilepton channel (CHATRCHYAN 2011F) and the measurement in the ${{\mathit \ell}}$ + jets channel (CHATRCHYAN 2011Z) which yields $150$ $\pm9$ $\pm17$ $\pm6$ pb.

²¹	Result is based on $3.1$ $\pm0.3$ pb${}^{-1}$ of data.

References:

2017B

EPJ C77 15

Measurements of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section in Lepton+Jets Final States in ${{\mathit p}}{{\mathit p}}$ Collisions at 8 TeV and Ratio of 8 to 7 TeV Cross Sections

2016AW

JHEP 1608 029

Measurement of the ${\mathit {\mathit t}}−{\mathit {\overline{\mathit t}}}$ Production Cross Section in the ${{\mathit e}}$ $−{{\mathit \mu}}$ Channel in Proton-Proton Collisions at $\sqrt {s }$ = 7 and 8 TeV

2015BO

PR D91 052005

imultaneous Measurements of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$, ${{\mathit W}^{+}}{{\mathit W}^{-}}$ , and ${{\mathit Z}}$ $/$ ${{\mathit \gamma}^{*}}$ $\rightarrow$ ${{\mathit \tau}}{{\mathit \tau}}$ Production Cross-Sections in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV with the ATLAS Detector

2015CC

PR D92 072005

Measurements of the Top Quark Branching Ratios into Channels with Leptons and Quarks with the ATLAS Detector

AAIJ

2015R

PRL 115 112001

First Observation of Top Quark Production in the Forward Region

2014AY

EPJ C74 3109

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross-Section using ${{\mathit e}}{{\mathit \mu}}$ Events with ${\mathit {\mathit b}}$-Tagged Jets in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 and 8 TeV with the ATLAS Detector

2013X

EPJ C73 2328

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section in the tau + Jets Channel using the ATLAS Detector

2013BB

PL B720 83

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV with Lepton + Jets Final States

2013AY

JHEP 1305 065

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section in the All-Jet Final State in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

2013BE

EPJ C73 2386

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section in the ${{\mathit \tau}}$ +jets Channel in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

2012BF

JHEP 1205 059

Measurement of the Cross Section for Top-Quark Pair Production in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV with the ATLAS Detector using Final States with Two High-${{\mathit p}_{{T}}}$ Leptons

2012B

PL B707 459

Measurement of the Top Quark Pair Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7$~$TeV in Dilepton Final States with ATLAS

2012BO

PL B711 244

Measurement of the Top Quark Pair Production Cross-Section with ATLAS in the Single Lepton Channel

2012CG

PL B717 89

Measurement of the Top Quark Pair Cross Section with ATLAS in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV using Final States with an Electron or a Muon and a Hadronically Decaying ${{\mathit \tau}}$ Lepton

2012AC

PR D85 112007

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV in Dilepton Final States Containing a ${{\mathit \tau}}$

2012AX

JHEP 1211 067

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section in the Dilepton Channel in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

2011A

EPJ C71 1577

Measurement of the Top Quark-Pair Production Cross Section with ATLAS in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

2011Z

PR D84 092004

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at 7 TeV in Lepton+Jets Events using ${\mathit {\mathit b}}$-Quark Jet Identification

2011F

JHEP 1107 049

Measurement of the ${\mathit {\mathit t}}{\mathit {\overline{\mathit t}}}$ Production Cross Section and the Top Quark Mass in the Dilepton Channel in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV

2011AA

EPJ C71 1721

Measurement of the ${{\mathit t}}{{\overline{\mathit t}}}$ Production Cross Section in ${{\mathit p}}{{\mathit p}}$ Collisions at $\sqrt {s }$ = 7 TeV using the Kinematic Properties of Events with Leptons and Jets