Study of rare top quark decays into a jet plus a charged pseudo-scalar meson
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arXiv
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| Hauptverfasser: | , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909560156979200 |
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| author | Lu, Long-Shun Li, Lei-Yi Lü, Cai-Dian |
| author_facet | Lu, Long-Shun Li, Lei-Yi Lü, Cai-Dian |
| contents | The semi-inclusive decay processes of a top quark into a charged pseudo-scalar meson and a jet are studied within the framework of QCD factorization. The leading power of the decay matrix elements can be factorized into heavy-to-light quark transition current and a hadron matrix element up to next-to-leading order QCD corrections. We calculate one-loop virtual corrections together with real gluon emission corrections at the αs order. The numerical results of the branching ratios are presented for the sum of two-body and three-body decays. We also study the energy cut-off dependence of the gluon jet. These processes are hopeful to be detected in the near future experiments, which can serve as probes for new physics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2412_19173 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Study of rare top quark decays into a jet plus a charged pseudo-scalar meson Lu, Long-Shun Li, Lei-Yi Lü, Cai-Dian High Energy Physics - Phenomenology The semi-inclusive decay processes of a top quark into a charged pseudo-scalar meson and a jet are studied within the framework of QCD factorization. The leading power of the decay matrix elements can be factorized into heavy-to-light quark transition current and a hadron matrix element up to next-to-leading order QCD corrections. We calculate one-loop virtual corrections together with real gluon emission corrections at the αs order. The numerical results of the branching ratios are presented for the sum of two-body and three-body decays. We also study the energy cut-off dependence of the gluon jet. These processes are hopeful to be detected in the near future experiments, which can serve as probes for new physics. |
| title | Study of rare top quark decays into a jet plus a charged pseudo-scalar meson |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2412.19173 |