[Hadstruct] [EXTERNAL] Coulomb gauge lattice PDFs

Joseph Karpie jkarpie at gmail.com
Wed Jun 28 18:56:59 EDT 2023


Hey,

In case you missed it, https://urldefense.proofpoint.com/v2/url?u=https-3A__arxiv.org_pdf_2306.14960.pdf&d=DwIBaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=phC8jtUHUVIl1OXaA25HKnc5L16EvLwhrqx4rXYGPWA&m=--okf9NYKnac-wdTM6GfvU55ItwYoTolxBOkJAum_xWDE1bkpbZwfZknNfV4hxA6&s=FvXF6UsMrLM5yGv5zeqUjhe0QWCpk4wfVIW8YEucMHA&e= , some familiar
names have tried to calculate our beloved matrix elements in the coulomb
gauge. They say this allows for you to drop the Wilson line due to the
Coulomb's gauge relation to the lightcone gauge A^+=0 after an infinite
momentum boost. If it's still reasonable at finite momenta (which sounds
sketchy to me at first glance), then removing the WL gives an improvement
in signal specifically at large separations. I must read closer, but I
believe they said comparable errors with half the computer time. It also
removes the exponential piece of the renormalization that they frequently
worry about.

Best,
Joe
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