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| Autori principali: | , , , |
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| Natura: | Preprint |
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2024
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| Accesso online: | https://arxiv.org/abs/2408.00394 |
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| _version_ | 1866916342490202112 |
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| author | Kaur, Gurjit Ahuja, Gulsheen Shukla, Dheeraj Gupta, Manmohan |
| author_facet | Kaur, Gurjit Ahuja, Gulsheen Shukla, Dheeraj Gupta, Manmohan |
| contents | The hierarchy amongst the CKM matrix elements, highlighted recently by Luo and Xing, has been rigorously revisited using the PDG parameterization incorporating unitarity constraints. Further, we have explored the evaluation of the CP violating parameter ε_k for the 9 possible unitarity ensured equivalent independent parametrizations of CKM matrix. Interestingly, we find that not all of these reproduce the value of parameter ε_k, this being presumably due to the hierarchical nature of the CKM matrix elements. This situation is echoing similar conclusions regarding the evaluation of Jarlskog's rephasing invariant parameter J through unitarity ensured equivalent possibilities. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_00394 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Hierarchy of CKM matrix elements and implications of unitarity Kaur, Gurjit Ahuja, Gulsheen Shukla, Dheeraj Gupta, Manmohan High Energy Physics - Phenomenology The hierarchy amongst the CKM matrix elements, highlighted recently by Luo and Xing, has been rigorously revisited using the PDG parameterization incorporating unitarity constraints. Further, we have explored the evaluation of the CP violating parameter ε_k for the 9 possible unitarity ensured equivalent independent parametrizations of CKM matrix. Interestingly, we find that not all of these reproduce the value of parameter ε_k, this being presumably due to the hierarchical nature of the CKM matrix elements. This situation is echoing similar conclusions regarding the evaluation of Jarlskog's rephasing invariant parameter J through unitarity ensured equivalent possibilities. |
| title | Hierarchy of CKM matrix elements and implications of unitarity |
| topic | High Energy Physics - Phenomenology |
| url | https://arxiv.org/abs/2408.00394 |