Implications of W-boson mass anomaly for atomic parity violation

Autor:	Tan, H. B. Tran, Derevianko, A.
Rok vydání:	2022
Předmět:	High Energy Physics - Phenomenology Physics - Atomic Physics
Druh dokumentu:	Working Paper
Popis:	We consider the implication of the recent measurement of the W-boson mass $M_W$ [Science 376, 170 (2022)] for atomic parity violation experiments. We show that the change in $M_W$ shifts the Standard Model prediction for the ${}^{133}$Cs nuclear weak charge to $Q_W({}^{133}{\rm Cs})=-72.85(6)$, i.e. by $5.5\sigma$ from its current value. This brings existing experimental result for $Q_W({}^{133}{\rm Cs})$ into an essential agreement with the Standard Model. Using our revised value for $Q_W({}^{133}{\rm Cs})$, we readjust constraints on physics beyond the Standard Model. Comment: 5 pages, 1 figure. v2: typo corrected, additional references added. v3: additional references added
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2204.11991 Zobrazit plný text záznamu View this record from Arxiv