2–8 Nov 2025
TIFR Mumbai
Asia/Kolkata timezone

Systematic uncertainties in lattice QCD calculations of multi-hadron systems

7 Nov 2025, 15:10
20m
AG66

AG66

Speaker

Robert Perry (Massachusetts Institute of Technology)

Description

Excited-state effects lead to hard-to-quantify systematic uncertainties in spectroscopy calculations when imaginary times are smaller than inverse excitation gaps. The recently proposed Lanczos/Rayleigh-Ritz framework provides a set of two-sided constraints on energy levels that hold regardless of the size of excited-state effects. In this talk I discuss the application of these newly developed techniques to a high-statistics two-nucleon dataset computed at quark masses corresponding to a pion mass of 800 MeV.

Parallel Session (for talks only) Hadronic and nuclear spectrum and interactions

Authors

Anthony Grebe Assumpta Parreño Garcia (Universitat de Barcelona) Daniel Hackett Dr Marc Illa (Pacific Northwest National Laboratory) Michael Wagman Phiala Elisabeth Shanahan Robert Perry (Massachusetts Institute of Technology) Prof. William Detmold (Massachusetts Institute of Technology) Dr Yang Fu (Massachusetts Institute of Technology) Prof. Zohreh Davoudi (University of Maryland)

Presentation materials

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