Search for Higgs boson decay to a charm quark-antiquark pair via $t\bar{tH}$ production
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arXiv
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| Formato: | Preprint |
| Publicado: |
2025
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| _version_ | 1866915320143282176 |
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| author | Wuchterl, Sebastian |
| author_facet | Wuchterl, Sebastian |
| contents | In these proceedings, a search for the standard model Higgs boson decaying to a charm quark-antiquark pair, $H\to c\bar{c}$, produced in association with a top quark-antiquark pair ($t\bar{tH}$) is presented. The search is performed using proton-proton collision data collected by the CMS experiment at $s=13$ TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$. The Higgs boson decay to a bottom quark-antiquark pair is measured simultaneously and the observed $t\bar{tH(H\to bb)}$ event rate relative to the standard model expectation is found to be $0.91^{+0.26}_{-0.22}$. The observed (expected) upper limit at 95\% confidence level (CL) for $t\bar{tH(H\to cc)}$ production is 7.8 (8.7) times the standard model prediction. Combined with a previous search for $H\to c\bar{c}$ via associated production with a W or Z boson, the observed (expected) 95\% CL interval on the Higgs-charm Yukawa coupling modifier, $κ_{c}$, is $κ_{c} < 3.5$ ($κ_{c} < 2.7$). |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_02163 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Search for Higgs boson decay to a charm quark-antiquark pair via $t\bar{tH}$ production Wuchterl, Sebastian High Energy Physics - Experiment In these proceedings, a search for the standard model Higgs boson decaying to a charm quark-antiquark pair, $H\to c\bar{c}$, produced in association with a top quark-antiquark pair ($t\bar{tH}$) is presented. The search is performed using proton-proton collision data collected by the CMS experiment at $s=13$ TeV, corresponding to an integrated luminosity of 138 fb$^{-1}$. The Higgs boson decay to a bottom quark-antiquark pair is measured simultaneously and the observed $t\bar{tH(H\to bb)}$ event rate relative to the standard model expectation is found to be $0.91^{+0.26}_{-0.22}$. The observed (expected) upper limit at 95\% confidence level (CL) for $t\bar{tH(H\to cc)}$ production is 7.8 (8.7) times the standard model prediction. Combined with a previous search for $H\to c\bar{c}$ via associated production with a W or Z boson, the observed (expected) 95\% CL interval on the Higgs-charm Yukawa coupling modifier, $κ_{c}$, is $κ_{c} < 3.5$ ($κ_{c} < 2.7$). |
| title | Search for Higgs boson decay to a charm quark-antiquark pair via $t\bar{tH}$ production |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2506.02163 |