Update on technical aspects of $B$ meson mixing at NNLO
Fuente:
arXiv
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| Autore principale: | |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| Soggetti: | |
| Accesso online: | |
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| _version_ | 1866929396988772352 |
|---|---|
| author | Reeck, Pascal |
| author_facet | Reeck, Pascal |
| contents | This report summarises important technical challenges and their solutions in the calculation of the next-to-next-to-leading order QCD corrections to the width difference $ΔΓ_s$ in the $B_s-\overline{B}_s$ system. We focus on the treatment of spinor structures with products of up to 22 $γ$ matrices by means of projection and tensor integrals. Moreover, we present an approach for the semi-numeric computation of master integrals. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_16084 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Update on technical aspects of $B$ meson mixing at NNLO Reeck, Pascal High Energy Physics - Phenomenology This report summarises important technical challenges and their solutions in the calculation of the next-to-next-to-leading order QCD corrections to the width difference $ΔΓ_s$ in the $B_s-\overline{B}_s$ system. We focus on the treatment of spinor structures with products of up to 22 $γ$ matrices by means of projection and tensor integrals. Moreover, we present an approach for the semi-numeric computation of master integrals. |
| title | Update on technical aspects of $B$ meson mixing at NNLO |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2406.16084 |