Measurement of the top quark pole mass using $\text{t}\bar{\text{t}}$+jet events in the dilepton final state at $\sqrt{s}=$ 13 TeV with the CMS experiment
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arXiv
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| Format: | Preprint |
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2022
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| _version_ | 1866916407442145280 |
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| author | Wuchterl, Sebastian |
| author_facet | Wuchterl, Sebastian |
| contents | In this contribution, a measurement of the top quark pole mass $m_{\text{t}}^{\text{pole}}$ is presented. Events where a top quark-antiquark pair ($\text{t}\bar{\text{t}}$) is produced in association with at least one additional energetic jet ($\text{t}\bar{\text{t}}$+jet) are analyzed. The data set recorded by the CMS experiment at a center-of-mass energy of 13 TeV, corresponding to a total integrated luminosity of 36.3fb$^{-1}$, is used. Reconstructed events are required to contain two opposite-sign leptons in the final state. Machine learning methods are employed for the reconstruction of the main observable event classification. The normalized $\text{t}\bar{\text{t}}$+jet production cross section as a function of the inverse of the invariant mass of the $\text{t}\bar{\text{t}}$+jet system is measured at the parton level using a likelihood unfolding method. The value for $m_{\text{t}}^{\text{pole}}$ is extracted by comparing the measurement to next-to-leading order theoretical predictions using two parton distribution functions (PDFs). For a reference set of the ABMP16NLO PDF, the resulting value is $m_{\text{t}}^{\text{pole}} = 172.94\pm1.37$ GeV. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2207_13422 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | Measurement of the top quark pole mass using $\text{t}\bar{\text{t}}$+jet events in the dilepton final state at $\sqrt{s}=$ 13 TeV with the CMS experiment Wuchterl, Sebastian High Energy Physics - Experiment In this contribution, a measurement of the top quark pole mass $m_{\text{t}}^{\text{pole}}$ is presented. Events where a top quark-antiquark pair ($\text{t}\bar{\text{t}}$) is produced in association with at least one additional energetic jet ($\text{t}\bar{\text{t}}$+jet) are analyzed. The data set recorded by the CMS experiment at a center-of-mass energy of 13 TeV, corresponding to a total integrated luminosity of 36.3fb$^{-1}$, is used. Reconstructed events are required to contain two opposite-sign leptons in the final state. Machine learning methods are employed for the reconstruction of the main observable event classification. The normalized $\text{t}\bar{\text{t}}$+jet production cross section as a function of the inverse of the invariant mass of the $\text{t}\bar{\text{t}}$+jet system is measured at the parton level using a likelihood unfolding method. The value for $m_{\text{t}}^{\text{pole}}$ is extracted by comparing the measurement to next-to-leading order theoretical predictions using two parton distribution functions (PDFs). For a reference set of the ABMP16NLO PDF, the resulting value is $m_{\text{t}}^{\text{pole}} = 172.94\pm1.37$ GeV. |
| title | Measurement of the top quark pole mass using $\text{t}\bar{\text{t}}$+jet events in the dilepton final state at $\sqrt{s}=$ 13 TeV with the CMS experiment |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2207.13422 |