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Seminars

Strong CP violation: fact and fancy

by Prof. Goran Senjanovic (Abdus Salam International Centre for Theoretical Physics)

Asia/Shanghai
Meeting Room 300-02,TDLI (East Wing of Yue-kong Pao Library)

Meeting Room 300-02,TDLI (East Wing of Yue-kong Pao Library)

Description
Abstract
I start by recalling that there is no strong CP problem in the Standard Model - and thus there can be no solution. I go then through the most popular ‘solutions’ and show how they fare no better than the SM, but simply trade the small strong CP parameter for other ad-hoc assumed small terms. In particular, I focus on the PQ mechanism with the axion and discuss its pros and cons. 
Biography

Prof. Goran Senjanovic, Abdus Salam International Centre for Theoretical Physics

Division
Particle and Nuclear