# Search for H→cc via ttH production at CMS

- Institution: CERN
- Department: LHC Seminar
- Speaker: Sebastian Wuchterl
- Year: 2025
- Language: English
- Source: [CERN](https://videos.cern.ch/record/3023160)
- 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)

A search for the standard model Higgs boson decaying to a charm quark-antiquark pair, H→cc, produced in association with a top quark-antiquark pair (ttH) is presented, using the LHC Run 2 dataset collected by the CMS experiment.

Advanced machine learning techniques are employed for jet flavor identification and event classification.

A simultaneous fit is performed to extract the signal strengths of ttH and ttZ production with decays to both cc and bb.

The obtained results are combined with the previous search for H→cc via associated production with a W or Z boson, setting the most stringent constraints to date on the charm Yukawa coupling.

Refreshments will be served at 10h30 .

0:00:00 Slide 1

0:01:53 Slide 2

0:03:43 Slide 3

0:05:03 Slide 4

0:06:15 Slide 5

0:07:17 Slide 6

0:08:18 Slide 7

0:10:05 Slide 8

0:11:54 Slide 9

0:13:23 Slide 10

0:14:25 Slide 11

0:16:07 Slide 12

0:18:02 Slide 13

0:19:16 Slide 14

0:20:46 Slide 15

0:22:21 Slide 16

0:24:11 Slide 17

0:25:32 Slide 18

0:26:47 Slide 19

0:29:24 Slide 20

0:31:37 Slide 21

0:37:46 Slide 22

0:39:10 Slide 23

0:42:49 Slide 24

0:44:28 Slide 25

0:48:34 Slide 26

0:49:52 Slide 27

0:50:56 Slide 28

0:52:39 Slide 29

0:54:16 Slide 30

0:56:52 Slide 31

1:00:22 Slide 32

## Lectures

1. [Search for H→cc via ttH production at CMS](https://invisiblenetwork.ai/learn/cern/3023160/b8160e2d4227), 1 h 2 min (CERN's player)