======  TTP20-026 Penguin contribution to width difference and CP asymmetry   in \bbq\ mixing at order $\alpha_s^2 N_f$  ======

^ TTP20-026 Penguin contribution to width difference and CP asymmetry   in \bbq\ mixing at order $\alpha_s^2 N_f$ ^^
| **Hrachia M. Asatrian, Hrachya H. Asatryan, Artyom Hovhannisyan, Ulrich Nierste, Sergey Tumasyan, Arsen Yeghiazaryan ** | 
|**  Phys. Rev. D 102, 033007 (2020)**|
| {{preprints:2020:ttp20-026.pdf|PDF}} [[http://arxiv.org/abs/2006.13227|arXiv]]| 
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