# Top quark, top precision: Tests of the Standard Model at the percent level with top-quark cross-section measurements with the ATLAS experiment

- Institution: CERN
- Department: LHC Seminar
- Speaker: Oliver Majersky
- Year: 2025
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3023050)
- Licence: [CERN](http://copyright.web.cern.ch)
- Who can watch: Teens profiles and older (sources give no ratings; placed by Invisible Network from the source's own words)

Using the full Run-2 dataset at √s = 13 TeV, the ATLAS Collaboration has measured the 𝑡𝑡ˉ production cross-section with a precision of 1.3%, using opposite-sign electron-muon pairs and b-tagged jets. Several differential cross-section measurements are provided to test the QCD predictions at next-to-next-to-leading order precision as well as extract the top-quark pole mass. The Collaboration has also performed its first extraction of the top-quark Yukawa coupling from the 𝑡𝑡ˉ invariant-mass spectrum near threshold using the lepton+jets final state, including 𝑡𝑡ˉquasi bound-state effects.

Refreshments will be served at 10h30

.

0:00:00 Slide 1

0:01:10 Slide 2

0:02:17 Slide 3

0:03:37 Slide 4

0:04:59 Slide 5

0:06:04 Slide 6

0:09:44 Slide 7

0:12:32 Slide 8

0:14:50 Slide 9

0:16:57 Slide 10

0:17:58 Slide 11

0:19:19 Slide 12

0:20:20 Slide 13

0:22:05 Slide 14

0:23:50 Slide 15

0:25:17 Slide 16

0:27:24 Slide 17

0:29:44 Slide 18

0:30:54 Slide 19

0:33:31 Slide 20

0:34:54 Slide 21

0:36:41 Slide 22

0:38:34 Slide 23

0:40:21 Slide 24

0:41:33 Slide 25

0:42:36 Slide 26

0:44:10 Slide 27

0:48:03 Slide 28

0:50:41 Slide 29

0:52:54 Slide 30

0:56:07 Slide 31

0:59:59 Slide 32

1:03:41 Slide 33

1:06:07 Slide 34

1:08:55 Slide 35

1:10:07 Slide 36

## Lectures

1. [Top quark, top precision: Tests of the Standard Model at the percent level with top-quark cross-section measurements with the ATLAS experiment](https://invisiblenetwork.ai/learn/cern/3023050/40fb26f1c3f3), 1 h 12 min (CERN's player)