The $$W\ell \nu$$ W ℓ ν -vertex corrections to W-boson mass in the R-parity violating MSSM
In: AAPPS Bulletin, Jg. 33 (2023), Heft 1, S. 1-9
Online
academicJournal
Zugriff:
Abstract Inspired by the astonishing $$7\sigma$$ 7 σ discrepancy between the recent CDF-II measurement and the standard model prediction on the mass of W-boson, we investigate the $$\lambda '$$ λ ′ -corrections to the vertex of $$\mu \rightarrow \nu _\mu e\bar{\nu _e}$$ μ → ν μ e ν e ¯ decay in the context of the R-parity violating minimal supersymmetric standard model. These corrections can raise the W-boson mass independently. Combined with recent Z-pole and kaon decay measurements, $$m_W \lesssim 80.37$$ m W ≲ 80.37 GeV can be reached. We find that these vertex corrections cannot explain the CDF result entirely at the $$2\sigma$$ 2 σ and even $$3\sigma$$ 3 σ levels. However, these corrections together with the oblique contributions can be accordant with the CDF-II result and relevant bounds at the $$3\sigma$$ 3 σ level.
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The $$W\ell \nu$$ W ℓ ν -vertex corrections to W-boson mass in the R-parity violating MSSM
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Autor/in / Beteiligte Person: | Zheng, Min-Di ; Chen, Feng-Zhi ; Zhang, Hong-Hao |
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Zeitschrift: | AAPPS Bulletin, Jg. 33 (2023), Heft 1, S. 1-9 |
Veröffentlichung: | Springer, 2023 |
Medientyp: | academicJournal |
ISSN: | 2309-4710 (print) |
DOI: | 10.1007/s43673-023-00086-3 |
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