{"id":38985,"date":"2026-08-21T15:27:40","date_gmt":"2026-08-21T15:27:40","guid":{"rendered":"https:\/\/lamarr-institute.org\/publication\/measurement-of-the-top-quark-production-cross-section-and-charge-asymmetry-at-lhcb\/"},"modified":"2026-09-17T11:17:36","modified_gmt":"2026-09-17T11:17:36","slug":"measurement-of-the-top-quark-production-cross-section-and-charge-asymmetry-at-lhcb","status":"publish","type":"publication","link":"https:\/\/lamarr-institute.org\/de\/publication\/measurement-of-the-top-quark-production-cross-section-and-charge-asymmetry-at-lhcb\/","title":{"rendered":"Measurement of the Top-Quark Production Cross Section and Charge Asymmetry at LHCb"},"content":{"rendered":"<p>The first measurements of the top- and antitop-quark differential production cross-sections and the top-quark charge asymmetry in the forward region are presented, using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.4 $fb^{-1}$. The total production cross-sections of top and antitop quarks are also determined. Measurements are performed using the $\\mu+b\\text{-jet}$ final state within a fiducial region defined by a $b\\text{-jet}$ $p_{\\text{T, jet}}>50$ GeV and pseudorapidity $2.2<\\eta_{\\text{jet}}<4.0$, with the muon from the W-boson decay required to have $p_{\\text{T},\\mu}>25$ GeV and pseudorapidity $2.0<\\eta_{\\mu}<4.5$. The muon and b-jet system must satisfy $p_{T}(\\mu+\\text{jet}) > 20$ GeV. The measured integrated production cross-sections for the top and antitop quarks are $\\sigma_{t} = 0.95 \\pm 0.04 \\pm 0.08 \\pm 0.02$ pb, $\\sigma_{\\bar{t}} = 0.81 \\pm 0.03 \\pm 0.07 \\pm 0.02$ pb, where the first uncertainty is statistical, the second systematic, and the third accounts for the luminosity uncertainty. The top-quark charge asymmetry is measured to be $A_C^{t} = 0.08 \\pm 0.03 \\pm 0.01$, where the first uncertainty is statistical and the second is systematic. These results are consistent with next-to-leading-order Standard Model predictions.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The first measurements of the top- and antitop-quark differential production cross-sections and the top-quark charge asymmetry in the forward region are presented, using proton-proton collision data collected by the LHCb experiment at a centre-of-mass energy of 13 TeV corresponding to an integrated luminosity of 5.4 $fb^{-1}$. The total production cross-sections of top and antitop quarks are also determined. Measurements are performed using the $\\mu+b\\text{-jet}$ final state within a fiducial region [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"publication-type":[30],"class_list":["post-38985","publication","type-publication","status-publish","hentry","publication-type-article"],"acf":[],"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/38985","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication"}],"about":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/types\/publication"}],"author":[{"embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/users\/14"}],"version-history":[{"count":0,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication\/38985\/revisions"}],"wp:attachment":[{"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/media?parent=38985"}],"wp:term":[{"taxonomy":"publication-type","embeddable":true,"href":"https:\/\/lamarr-institute.org\/de\/wp-json\/wp\/v2\/publication-type?post=38985"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}