University of Connecticut

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Particle, Astrophysics, and Nuclear Physics Seminar

Thursday, February 16, 2017
2:00pm – 3:00pm

Storrs Campus
Physics Building, P121

Dr. M. Hansen, Helmholtz Institute Mainz, University of Mainz

Extracting scattering observables and resonance properties from lattice QCD

QCD, the quantum theory of the strong force, gives rise to a rich variety of short-lived resonance states. Understanding these in detail is of great interest, both for predicting backgrounds in new-physics searches and for gaining general insight into strong-force dynamics and phenomenology. The numerical technique of lattice QCD (LQCD), which has proven very successful in studying the properties stable hadrons, should also play an important role in reaching a comprehensive, quantitative picture for states that decay via the strong force. In this talk, I will review methods for calculating resonance properties in LQCD with a particular focus on three-particle decay channels. I will explain how the restriction to a finite volume can used as a tool, rather than an unwanted artifact. In addition, I will highlight the future steps required for achieving rigorous LQCD calculations of excited nucleon and exotic meson states.


Prof. Gerald Dunne

Physics Department (primary)

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