Pablo Quilez (Universidad Autónoma de Madrid (UAM) & Instituto de FÃsica Teórica (IFT) “On the Peccei-Quinn quality problem” Seminar OrganizerAugust 21, 2019 Event Details Date: September 23, 2019 12:30 pm – 1:30 pm Categories: 4D Seminar Abstract: In this seminar I will review the Peccei-Quinn quality problem and comment of different possible solutions and some weaknesses of the usual argument.