# The CMS detector for LHC Run 3

- Institution: CERN
- Department: Detector Seminar
- Taught by: Alexey Shevelev, Dinyar Rabady, Grace Haza
- Year: 2024
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3007311)
- 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)

Since the initial data taking of the CERN LHC, the CMS experiment has undergone substantial upgrades and improvements. In this Detector Seminar an overview of important upgrades of the CMS Detector during previous Long Shutdowns will be given and the configuration of the experiment for the third data-taking period of the CERN LHC, Run 3, will be presented.

In a first part, details about the replacement of the entire silicon pixel tracking detector will be presented. In a second, upgrades to the electronics of the hadron calorimeter and the muon electronic systems will be shown, together with the new muon detector stations which were added. The dedicated luminosity detectors and the beam loss monitor were refurbished and the changes will be summarized. In the final part of the seminar, the substantial improvements to the trigger, data acquisition, software, and computing systems will be presented, including a new hybrid CPU/GPU farm for the high-level trigger.

Coffee will be served at 10:30. .

0:00:00 Slide 1

0:01:48 Slide 2

0:03:11 Slide 3

0:04:44 Slide 4

0:06:35 Slide 5

0:07:44 Slide 6

0:09:04 Slide 7

0:10:47 Slide 8

0:12:11 Slide 9

0:13:34 Slide 10

0:15:02 Slide 11

0:16:32 Slide 12

0:17:58 Slide 13

0:35:16 Slide 14

0:36:30 Slide 15

0:38:20 Slide 16

0:39:25 Slide 17

0:40:27 Slide 18

0:42:18 Slide 19

0:45:07 Slide 20

0:46:16 Slide 21

0:47:58 Slide 22

0:49:16 Slide 23

0:50:37 Slide 24

0:51:58 Slide 25

0:53:26 Slide 26

0:54:31 Slide 27

0:56:34 Slide 28

0:58:59 Slide 29

1:04:16 Slide 30

## Lectures

1. [The CMS detector for LHC Run 3](https://invisiblenetwork.ai/learn/cern/3007311/9c5edf4a5c4b), 1 h 9 min (CERN's player)