Scholarlink

<p>We study the decays of <i>B</i><sub>(<i>s</i>)</sub> mesons into light pseudoscalar mesons under the SU(3) flavour symmetry. Assuming exact SU(3) symmetry at the level of the amplitudes leads to a simple parametrisation. Using the available experimental data and accounting for mixing effects in the <InlineEquation ID="IEq1"> <EquationSource Format="MATHML"><math display="inline"> <msubsup> <mi>B</mi> <mi>s</mi> <mn>0</mn> </msubsup> </math></EquationSource> <EquationSource Format="TEX">\( {B}_s^0 \)</EquationSource> </InlineEquation> branching ratios, we find that the data cannot be described with this assumption. We improve this parametrisation by including <i>factorizable</i> SU(3)<sub>F</sub>-breaking effects. This new approach allows for an excellent description of the data, with a fit <i>p</i> value of 32<i>.</i>3%. We provide posterior predictions for all observables and identify several decay channels that would significantly impact our analysis. Finally, we briefly compare our results with the predictions of QCD factorisation, paving the way to a more detailed analysis which could provide insights into QCD effects at low energy scales.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Detailed SU(3) flavour symmetry analysis of charmless two-body B-meson decays including factorizable corrections

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年3月24日

查看全文
  • M. Burgos Marcos,
  • M. Reboud,
  • K. K. Vos

摘要

We study the decays of B(s) mesons into light pseudoscalar mesons under the SU(3) flavour symmetry. Assuming exact SU(3) symmetry at the level of the amplitudes leads to a simple parametrisation. Using the available experimental data and accounting for mixing effects in the B s 0 \( {B}_s^0 \) branching ratios, we find that the data cannot be described with this assumption. We improve this parametrisation by including factorizable SU(3)F-breaking effects. This new approach allows for an excellent description of the data, with a fit p value of 32.3%. We provide posterior predictions for all observables and identify several decay channels that would significantly impact our analysis. Finally, we briefly compare our results with the predictions of QCD factorisation, paving the way to a more detailed analysis which could provide insights into QCD effects at low energy scales.