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Volume 363 - 37th International Symposium on Lattice Field Theory (LATTICE2019) - Main session
Parton distribution functions of $\Delta^+$ on the lattice
Y. Chai, Y. Li, S. Xia,* C. Alexandrou, K. Cichy, M. Constantinou, X. Feng, K. Hadjiyiannakou, K. Jansen, G. Koutsou, C. Liu, A. Scapellato, F. Steffens
*corresponding author
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Pre-published on: 2020 January 04
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We present results for renormalized matrix elements related to the unpolarized quasi-distribution function of the $\Delta^+$ baryon making use of the large momentum effective theory. Two ensembles of $N_f=2+1+1$ twisted mass fermions with a clover term and pion masses of 250 MeV and 330 MeV are analyzed. We employ momentum smearing to improve the overlap with the boosted $\Delta$ state significantly reducing in this way
the statistical error of both two- and three-point functions.
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