Aug 8 – 13, 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

6144 Pions in a Box

Aug 8, 2022, 4:50 PM
CP1-HSZ/0.010 (CP1-HSZ) - HS2 (CP1-HSZ)

CP1-HSZ/0.010 (CP1-HSZ) - HS2


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Oral Presentation Hadron Spectroscopy and Interactions Hadron Spectroscopy and Interactions


Ryan Abbott (MIT)


This talk presents a new method for computing correlators for systems of many identical mesons. The method allows the computation of every meson correlator up to N mesons from propagators using only a single N by N eigendecomposition. This pushes the frontier of many-meson calculations from dozens to thousands, and as a demonstration I will present the computation of the maximal-isospin pion correlator for systems from 1 up to 6144 pions on an ensemble of Wilson fermions with slightly heavier than physical pions ($m_\pi \sim 170 \, {\rm MeV}$). In addition, I will cover some aspects of analyzing such correlators, a task complicated by the sheer scale of the correlators involved.

Primary authors

Fernando Romero-Lopez (MIT) Ryan Abbott (MIT) William Detmold (MIT)

Presentation materials