CP violation in $\Lambda_b \to p \pi^-$ decay
| العنوان: | CP violation in $\Lambda_b \to p \pi^-$ decay |
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| المؤلفون: | Rukmani Mohanta |
| المصدر: | The European Physical Journal C. 16:289-294 |
| بيانات النشر: | Springer Science and Business Media LLC, 2000. |
| سنة النشر: | 2000 |
| مصطلحات موضوعية: | Physics, Quantum chromodynamics, Particle physics, Physics and Astronomy (miscellaneous), Branching fraction, High Energy Physics::Lattice, High Energy Physics::Phenomenology, Quark model, Hyperon, Lambda baryon, Particle decay, Pion, CP violation, High Energy Physics::Experiment, Engineering (miscellaneous) |
| الوصف: | Using the next-to-leading order QCD corrected effective Hamiltonian, scale and scheme independent Wilson coefficients, we have estimated the branching ratio and CP violating asymmetries for the $\Lambda_b \to p \pi^- $ decay mode in the Standard Model using the framework of generalized factorization. The effects of nonfactorizable contributions are taken into account by treating the effective no. of colors $(N_c^{eff})$ as a free parameter. The form factors are evaluated in the nonrelativistic quark model. The estimated branching ratio is found to be ${\cal O}(10^{-6})$ which lies below the current experimental upper limit and the CP violating asymmetries are $a_{cp}\sim -8% $ and $A(\alpha) \sim 2 \times 10^{-5}$ . |
| تدمد: | 1434-6052 1434-6044 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_________::8b01a7ae45c36c8b0a840b03ee9584ccTest https://doi.org/10.1007/s100520050021Test |
| حقوق: | OPEN |
| رقم الانضمام: | edsair.doi...........8b01a7ae45c36c8b0a840b03ee9584cc |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14346052 14346044 |
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