Establishing CP violation in $b$-baryon decays

Autor:	Yu, Ji-Xin, Han, Jia-Jie, Li, Ya, Li, Hsiang-nan, Xiao, Zhen-Jun, Yu, Fu-Sheng
Rok vydání:	2024
Předmět:	High Energy Physics - Phenomenology High Energy Physics - Experiment
Druh dokumentu:	Working Paper
Popis:	The $CP$ violation (CPV) in the baryon system has not yet been definitively established. We demonstrate that individual partial-wave CPV in the $\Lambda_b\to p\pi^-,pK^-$ decays can exceed $10\%$, but the destruction between different partial waves results in small net direct CPV as observed in current experiments. There is thus high possibility of identifying CPV in $b$-baryon decays through measurements of partial-wave CPV. The above observation is supported by the first full QCD calculation of two-body hadronic $\Lambda_b$ baryon decays with controllable uncertainties in the perturbative QCD formalism. Comment: 5 pages, 2 figures,4 tables
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2409.02821 Zobrazit plný text záznamu View this record from Arxiv