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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| Language: | English |
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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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| _version_ | 1846161056987086848 |
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| author | Sain Ria |
| author_facet | Sain Ria |
| author_sort | Sain Ria |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-0e0f9b43e23d45eeafdc2fad19c0fad2 |
| institution | Kabale University |
| issn | 2100-014X |
| language | English |
| publishDate | 2024-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj-art-0e0f9b43e23d45eeafdc2fad19c0fad22024-11-21T11:29:03ZengEDP SciencesEPJ Web of Conferences2100-014X2024-01-013120400210.1051/epjconf/202431204002epjconf_fpcp2024_04002Probing new physics in Λb → Λc(→ Λπ)τν decay *Sain Ria0Indian Institute of Technology, North GuwahatiWe 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.https://www.epj-conferences.org/articles/epjconf/pdf/2024/22/epjconf_fpcp2024_04002.pdf |
| spellingShingle | Sain Ria Probing new physics in Λb → Λc(→ Λπ)τν decay * EPJ Web of Conferences |
| title | Probing new physics in Λb → Λc(→ Λπ)τν decay * |
| title_full | Probing new physics in Λb → Λc(→ Λπ)τν decay * |
| title_fullStr | Probing new physics in Λb → Λc(→ Λπ)τν decay * |
| title_full_unstemmed | Probing new physics in Λb → Λc(→ Λπ)τν decay * |
| title_short | Probing new physics in Λb → Λc(→ Λπ)τν decay * |
| title_sort | probing new physics in λb λc λπ τν decay |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2024/22/epjconf_fpcp2024_04002.pdf |
| work_keys_str_mv | AT sainria probingnewphysicsinlblclptndecay |