Beyond the Narrow-Width Limit for Off-Shell and Boosted Differential Top Quark Decays
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arXiv
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| Autores principales: | , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| _version_ | 1866916086849470464 |
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| author | Hoang, André H. Plätzer, Simon Regner, Christoph Ruffa, Ines |
| author_facet | Hoang, André H. Plätzer, Simon Regner, Christoph Ruffa, Ines |
| contents | The standard approaches for describing top quark production and its decay dynamics are currently mostly either based on the narrow-width (NW) limit or on off-shell fixed-order calculations. In this article we present a factorised approach for boosted top quarks that combines the properties of the NW limit and off-shell computations accounting for the dominant off-shell effects in an expansion in $m_t/Q$ with the hard scattering scale $Q$. We discuss the key ideas of our approach and show some preliminary results at tree-level. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_05035 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Beyond the Narrow-Width Limit for Off-Shell and Boosted Differential Top Quark Decays Hoang, André H. Plätzer, Simon Regner, Christoph Ruffa, Ines High Energy Physics - Phenomenology The standard approaches for describing top quark production and its decay dynamics are currently mostly either based on the narrow-width (NW) limit or on off-shell fixed-order calculations. In this article we present a factorised approach for boosted top quarks that combines the properties of the NW limit and off-shell computations accounting for the dominant off-shell effects in an expansion in $m_t/Q$ with the hard scattering scale $Q$. We discuss the key ideas of our approach and show some preliminary results at tree-level. |
| title | Beyond the Narrow-Width Limit for Off-Shell and Boosted Differential Top Quark Decays |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2401.05035 |