Study of quasi-beam function in twisted mass lattice QCD
A. Sen*, C. Alexandrou, K. Cichy, M. Constantinou, X. Feng, K. Jansen, C. Liu, G. Spanoudes, F. Steffens, J. Tarello and C. Urbach
December 21, 2022
April 06, 2023
We present an exploratory study of the quasi-beam function using an $N_f = 2 + 1 + 1$ twisted mass lattice of size $24^3 \times 48$, with a pion mass of $350$ MeV and of lattice spacing $0.093$ fm. We show results for longitudinal momentum of $1.7$ GeV and transverse separation of up to $0.18$ fm. We also study the non-perturbative renormalization of the bare matrix element using the RI/MOM scheme.
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