Probing new physics in Λb → Λc(→ Λπ)τν decay *
We study the 4-body angular distribution for Λb → Λc+(→ Λπ+)ℓ−ν decays and discuss various asymmetric and angular observables in the Standard Model and the new physics scenarios. Considering the new physics effects in b → cτ−ντ transitions, we have constrained the new Wilson coefficients of the one...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2024-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2024/22/epjconf_fpcp2024_04002.pdf |
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| Summary: | We study the 4-body angular distribution for Λb → Λc+(→ Λπ+)ℓ−ν decays and discuss various asymmetric and angular observables in the Standard Model and the new physics scenarios. Considering the new physics effects in b → cτ−ντ transitions, we have constrained the new Wilson coefficients of the one operator and two operator scenarios from the available data on these decays. The two-operator scenario with scalar-pseudoscalar and tensor quark current provides the most plausible solution to the current data. Also, we have tested the new physics sensitivities (one or two-operator scenarios) of the different angular observables in Λb → Λc(→ Λπ+)τ−ντ decays and found correlations among them. |
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| ISSN: | 2100-014X |