Study of quasi-beam function in twisted mass lattice QCD

Aniket Sen,Constantia Alexandrou,Krzysztof Cichy,Martha Constantinou,Xu Feng,Karl Jansen,Chuan Liu,Gregoris Spanoudes,Fernanda Steffens, Jacopo Tarello,Carsten Urbach

Proceedings of The 39th International Symposium on Lattice Field Theory — PoS(LATTICE2022)（2022）

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摘要

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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关键词

qcd,quasi-beam

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