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https://hdl.handle.net/2445/223297| Title: | Study of the B+ → π+μ+μ− decay with the LHCb experiment |
| Author: | Salvador Carreté, Marc |
| Director/Tutor: | Marín Benito, Carla Olivart Pino, Ernest |
| Keywords: | Física de partícules Aprenentatge automàtic Treballs de fi de grau Particle physics Machine learning Bachelor's theses |
| Issue Date: | Jun-2025 |
| Abstract: | In this work, a study of the B+ → π+μ+μ− decay is performed in the new data collected during Run 3 of the LHCb experiment. A Boosted Decision Tree (BDT) algorithm is used to select the events corresponding to this decay and mass fits are performed to extract its yield. The B+ → π+J/ψ(→ μ+μ−) decay is used as a control channel. Using the yield of the control channel, the expected signal yield is found to be 1.64±0.22. No signal events have been found by performing a fit directly, which is compatible with the expectations. |
| Note: | Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2025, Tutors: Carla Marín Benito, Ernest Olivart Pino |
| URI: | https://hdl.handle.net/2445/223297 |
| Appears in Collections: | Treballs Finals de Grau (TFG) - Física |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| SALVADOR CARRETÉ MARC-R.pdf | 484.79 kB | Adobe PDF | View/Open |
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