# XQCD 2016

1-3 August 2016
Plymouth University
Europe/London timezone
The 14th International workshop on QCD in extreme conditions, Aug. 1-3 2016

## $\theta$-dependence of the massive Schwinger model

1 Aug 2016, 17:25
2h 5m
Portland Square (Plymouth University)

### Portland Square

#### Plymouth University

Drake Circus Plymouth, Devon PL4 8AA, UK
Poster Quantum Field Theories of dense, cold matter

### Speaker

Understanding the role of the $\theta$ parameter in QCD and its connection with the strong CP problem and axion physics is one of the major challenges for high energy theorists. Due to the sign problem, at present only the QCD topological susceptibility is well known. Using an algorithmic approach that could potentially be extended to QCD, we study as a first step the $\theta$-dependence in the massive Schwinger model, and try to verify a conjecture of Coleman.