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<blockquote style="position: relative; padding-left: 55px;"><section><a href="https://sciencemastodon.com/users/freyablekman/statuses/113752536756497891">Freya Blekman (freyablekman@sciencemastodon.com)'s status on Wednesday, 01-Jan-2025 20:38:14 JST</a><a href="https://sciencemastodon.com/@freyablekman" title="freyablekman@sciencemastodon.com"><img src="https://gnusocial.jp/avatar/280499-48-20240907135201.webp" width="48" height="48" alt="Freya Blekman" style="position: absolute; left: 0; top: 0;">Freya Blekman</a></section><article><p>Another 2024 highlight <a href="https://sciencemastodon.com/tags/CMSPaper" rel="tag">#CMSPaper</a> is the ATLAS and CMS of the top quark mass, using the data collected in LHC Run 1. The uncertainty of the combination is 1.9 permille! Knowing the mass accurately helps with precision standard model predictions for other particles buff.ly/4cSnRdU</p></article><footer><a rel="bookmark" href="https://gnusocial.jp/conversation/4294505#notice-8394719">In conversation</a><time datetime="2025-01-01T20:38:14+09:00" title="Wednesday, 01-Jan-2025 20:38:14 JST">about a month ago</time> <span>from <span><a href="https://sciencemastodon.com/@freyablekman/113752536756497891" rel="external" title="Sent from sciencemastodon.com via ActivityPub">sciencemastodon.com</a></span></span><a href="https://sciencemastodon.com/@freyablekman/113752536756497891">permalink</a><h4>Attachments</h4><ol><li><label><a rel="external" href="https://gnusocial.jp/attachment/3820615">Untitled attachment</a></label><br><a href="https://cdn.masto.host/sciencemastodoncom/media_attachments/files/113/752/536/631/337/656/original/278a53a6499e1097.jpeg" rel="external">https://cdn.masto.host/sciencemastodoncom/media_attachments/files/113/752/536/631/337/656/original/278a53a6499e1097.jpeg</a></li><li><article><header><div>Domain not in remote thumbnail source whitelist: arxiv.org</div><h5><a href="https://arxiv.org/abs/2402.08713">Combination of measurements of the top quark mass from data collected by the ATLAS and CMS experiments at $\sqrt{s}$ = 7 and 8 TeV</a></h5><div></div></header><div>A combination of fifteen top quark mass measurements performed by the ATLAS and CMS experiments at the LHC is presented. The data sets used correspond to an integrated luminosity of up to 5 and 20$^{-1}$ of proton-proton collisions at center-of-mass energies of 7 and 8 TeV, respectively. The combination includes measurements in top quark pair events that exploit both the semileptonic and hadronic decays of the top quark, and a measurement using events enriched in single top quark production via the electroweak $t$-channel. The combination accounts for the correlations between measurements and achieves an improvement in the total uncertainty of 31% relative to the most precise input measurement. The result is $m_\mathrm{t}$ = 172.52 $\pm$ 0.14 (stat) $\pm$ 0.30 (syst) GeV, with a total uncertainty of 0.33 GeV.</div><footer></footer></article></li></ol></footer></blockquote>

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Freya Blekman (freyablekman@sciencemastodon.com)'s status on Wednesday, 01-Jan-2025 20:38:14 JST Freya Blekman
Another 2024 highlight #CMSPaper is the ATLAS and CMS of the top quark mass, using the data collected in LHC Run 1. The uncertainty of the combination is 1.9 permille! Knowing the mass accurately helps with precision standard model predictions for other particles buff.ly/4cSnRdU
In conversationabout a month ago from sciencemastodon.compermalink
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  Combination of measurements of the top quark mass from data collected by the ATLAS and CMS experiments at $\sqrt{s}$ = 7 and 8 TeV
  A combination of fifteen top quark mass measurements performed by the ATLAS and CMS experiments at the LHC is presented. The data sets used correspond to an integrated luminosity of up to 5 and 20$^{-1}$ of proton-proton collisions at center-of-mass energies of 7 and 8 TeV, respectively. The combination includes measurements in top quark pair events that exploit both the semileptonic and hadronic decays of the top quark, and a measurement using events enriched in single top quark production via the electroweak $t$-channel. The combination accounts for the correlations between measurements and achieves an improvement in the total uncertainty of 31% relative to the most precise input measurement. The result is $m_\mathrm{t}$ = 172.52 $\pm$ 0.14 (stat) $\pm$ 0.30 (syst) GeV, with a total uncertainty of 0.33 GeV.

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