Parton distribution functions of $\Delta^+$ on the lattice

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 anal...

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Detalles Bibliográficos
Autores principales: Chai, Yahui, Li, Yuan, Xia, Shicheng, Alexandrou, Constantia, Cichy, Krzysztof, Constantinou, Martha, Feng, Xu, Hadjiyiannakou, Kyriakos, Jansen, Karl, Koutsou, Giannis, Liu, Chuan, Scapellato, Aurora, Steffens, Fernanda
Lenguaje:eng
Publicado: SISSA 2019
Materias:
hep-lat
Particle Physics - Lattice
Acceso en línea:https://dx.doi.org/10.22323/1.363.0270
http://cds.cern.ch/record/2683959
Descripción
Sumario: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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