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22-28 July 2018
Kellogg Hotel and Conference Center
EST timezone

Studies of I=0 and 2 pi-pi scattering with physical pion mass

Jul 26, 2018, 11:20 AM
20m
103 (Kellogg Hotel and Conference Center)

103

Kellogg Hotel and Conference Center

219 S Harrison Rd, East Lansing, MI 48824
Hadron Spectroscopy and Interactions Weak Decays and Matrix Elements

Speaker

Mr Tianle Wang (Columbia University)

Description

We report a direct lattice calculation of both the I=0 and 2 pi-pi scattering phase shifts using G-parity boundary conditions on an ensemble of $32^3\times64$ gauge configurations at physical quark mass. This extends an earlier calculation of the RBC/UKQCD Collaboration by including additional operators and using non-zero center-of-mass momenta. We apply the generalized eigenvalue treatment to this set of operators in order to understand and reduce excited state contamination and to study pi-pi scattering at energies in the energy region around the kaon mass. These results are compared with results from Roy's equation.

Primary author

Mr Tianle Wang (Columbia University)

Presentation Materials