Full-colour double-virtual amplitudes for associated production of a Higgs boson with a bottom-quark pair at the LHC
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| Main Authors: | , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866909536559824896 |
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| author | Badger, Simon Hartanto, Heribertus Bayu Poncelet, Rene Wu, Zihao Zhang, Yang Zoia, Simone |
| author_facet | Badger, Simon Hartanto, Heribertus Bayu Poncelet, Rene Wu, Zihao Zhang, Yang Zoia, Simone |
| contents | We present the double-virtual amplitudes contributing to the production of a Higgs boson in association with a $b\bar{b}$ pair at the Large Hadron Collider. We perform the computation within the five-flavour scheme, which employs massless bottom quarks and finite bottom-Yukawa coupling, taking into account all the colour structures. We derive the analytic form of the helicity amplitudes through finite-field reconstruction techniques. The analytic expressions have been implemented in a public C++ library, and we demonstrate that evaluations are sufficiently stable and efficient for use in phenomenological studies. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2412_06519 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Full-colour double-virtual amplitudes for associated production of a Higgs boson with a bottom-quark pair at the LHC Badger, Simon Hartanto, Heribertus Bayu Poncelet, Rene Wu, Zihao Zhang, Yang Zoia, Simone High Energy Physics - Phenomenology High Energy Physics - Theory We present the double-virtual amplitudes contributing to the production of a Higgs boson in association with a $b\bar{b}$ pair at the Large Hadron Collider. We perform the computation within the five-flavour scheme, which employs massless bottom quarks and finite bottom-Yukawa coupling, taking into account all the colour structures. We derive the analytic form of the helicity amplitudes through finite-field reconstruction techniques. The analytic expressions have been implemented in a public C++ library, and we demonstrate that evaluations are sufficiently stable and efficient for use in phenomenological studies. |
| title | Full-colour double-virtual amplitudes for associated production of a Higgs boson with a bottom-quark pair at the LHC |
| topic | High Energy Physics - Phenomenology High Energy Physics - Theory |
| url | https://arxiv.org/abs/2412.06519 |