Radiative B to tensor meson decays at NLO in SCET
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arXiv
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| Autori principali: | , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866909624045666304 |
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| author | Sikandar, Arslan Aslam, M. Jamil |
| author_facet | Sikandar, Arslan Aslam, M. Jamil |
| contents | The radiative $B$ to tensor $\left(K_2^*(1430),\; f_2(1270),\; a_2(1230)\right)$ meson decays are studied at next-to-leading order (NLO) in soft-collinear effective theory (SCET). The SCET allows the systematic treatment of factorizable and non-factorizable contributions along with the resummation of large perturbative logarithms. We performed a two step matching and determined the soft-overlap function $ζ^\perp_{T}$ and branching ratios for these $B$ to tensor meson decays. In the case of $B\to K_2^*(1430)γ$, the numerical value of the branching ratio lies close to its experimental measurements. The estimated values of the branching ratios of CKM suppressed decays $B \to \left(a_2(1230),\; f_2(1270)\right)γ$ are significant small compared to that of $B\to K_2^*(1430)γ$, but still could be measured in some ongoing and future $B$ physics experiments. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2505_18624 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Radiative B to tensor meson decays at NLO in SCET Sikandar, Arslan Aslam, M. Jamil High Energy Physics - Phenomenology The radiative $B$ to tensor $\left(K_2^*(1430),\; f_2(1270),\; a_2(1230)\right)$ meson decays are studied at next-to-leading order (NLO) in soft-collinear effective theory (SCET). The SCET allows the systematic treatment of factorizable and non-factorizable contributions along with the resummation of large perturbative logarithms. We performed a two step matching and determined the soft-overlap function $ζ^\perp_{T}$ and branching ratios for these $B$ to tensor meson decays. In the case of $B\to K_2^*(1430)γ$, the numerical value of the branching ratio lies close to its experimental measurements. The estimated values of the branching ratios of CKM suppressed decays $B \to \left(a_2(1230),\; f_2(1270)\right)γ$ are significant small compared to that of $B\to K_2^*(1430)γ$, but still could be measured in some ongoing and future $B$ physics experiments. |
| title | Radiative B to tensor meson decays at NLO in SCET |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2505.18624 |