Search for exclusive Higgs and $Z$ boson decays to $ϕγ$ and $ργ$ with the ATLAS detector
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arXiv
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| Natura: | Preprint |
| Pubblicazione: |
2017
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| _version_ | 1866910294298591232 |
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| author | ATLAS Collaboration |
| author_facet | ATLAS Collaboration |
| contents | A search for the exclusive decays of the Higgs and $Z$ bosons to a $ϕ$ or $ρ$ meson and a photon is performed with a $pp$ collision data sample corresponding to an integrated luminosity of up to 35.6 $fb^{-1}$ collected at $\sqrt{s}=13$ TeV with the ATLAS detector at the CERN Large Hadron Collider. These decays have been suggested as a probe of the Higgs boson couplings to light quarks. No significant excess of events is observed above the background, as expected from the Standard Model. Upper limits at 95$\% $ confidence level were obtained on the branching fractions of the Higgs boson decays to $ϕγ$ and $ργ$ of $5.0\times10^{-4}$ and $10.4\times10^{-4}$, respectively. The corresponding 95$\% $ confidence level upper limits for the $Z$ boson decays are $0.7\times10^{-6}$ and $4.0\times10^{-6}$ for $ϕγ$ and $ργ$, respectively. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_1712_02758 |
| institution | arXiv |
| publishDate | 2017 |
| record_format | arxiv |
| spellingShingle | Search for exclusive Higgs and $Z$ boson decays to $ϕγ$ and $ργ$ with the ATLAS detector ATLAS Collaboration High Energy Physics - Experiment A search for the exclusive decays of the Higgs and $Z$ bosons to a $ϕ$ or $ρ$ meson and a photon is performed with a $pp$ collision data sample corresponding to an integrated luminosity of up to 35.6 $fb^{-1}$ collected at $\sqrt{s}=13$ TeV with the ATLAS detector at the CERN Large Hadron Collider. These decays have been suggested as a probe of the Higgs boson couplings to light quarks. No significant excess of events is observed above the background, as expected from the Standard Model. Upper limits at 95$\% $ confidence level were obtained on the branching fractions of the Higgs boson decays to $ϕγ$ and $ργ$ of $5.0\times10^{-4}$ and $10.4\times10^{-4}$, respectively. The corresponding 95$\% $ confidence level upper limits for the $Z$ boson decays are $0.7\times10^{-6}$ and $4.0\times10^{-6}$ for $ϕγ$ and $ργ$, respectively. |
| title | Search for exclusive Higgs and $Z$ boson decays to $ϕγ$ and $ργ$ with the ATLAS detector |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/1712.02758 |