Semileptonic and Missing Energy <i>B</i> Decays at Belle II
The Belle II experiment has collected a 364 fb<sup>−1</sup> sample of collisions at the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>Υ</mo><mo>(</mo><mn>4&l...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Particles |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2571-712X/8/2/60 |
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| Summary: | The Belle II experiment has collected a 364 fb<sup>−1</sup> sample of collisions at the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>Υ</mo><mo>(</mo><mn>4</mn><mi>S</mi><mo>)</mo></mrow></semantics></math></inline-formula> resonance. This dataset, with its low particle multiplicity and well-constrained initial state, provides an ideal environment for studying semileptonic and missing energy B decays. In this paper, I will present recent results on these decays, emphasizing their impact on the determination of CKM matrix elements and potential new physics. I will also discuss the techniques used for missing energy reconstruction and the challenges of signal-background discrimination. Future analysis prospects with larger datasets will also be highlighted. |
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| ISSN: | 2571-712X |