Double Parton Distributions in the nucleon: Lattice parameter dependence
Abstract
To make full use of the HL-LHC, especially in the search for BSM physics, all Standard Model backgrounds have to be understood with increased precision. This is especially difficult for Double Parton Interactions (DPIs) and more generally Multi Parton Interactions (MPIs), which are very difficult to isolate precisely in experiment. DPIs are parameterized by Double Parton Distributions (DPDs) and the lattice determination of the latter is, therefore, especially attractive. In our previous work on DPDs on the lattice, we focused on the results obtained from one gauge ensemble with higher than physical pion mass. In this work, we extend our efforts by investigating artifacts introduced by finite volume and the dependence on the lattice spacing. Moreover, we consider the dependence on the mass parameters. This study is carried out by employing the Wilson-Clover fermion gauge ensembles generated by the CLS collaboration.
Related
- Generalized parton distributions of the nucleon in the chiral quark soliton model: Sum over all quark states at nonzero skewness and momentum transfer
- Extraction of transverse-momentum-dependent helicity distributions of the nucleon
- Impact of Future Dihadron Production Measurements on the Transversity Distributions and Tensor Charges of the Nucleon
- Effects of in-medium NN inelastic cross sections and the high-momentum tail of nucleon momentum distributions on pion production in heavy-ion collisions
- Constraining three-nucleon forces in nuclear lattice effective field theory
BibTeX
@misc{reitinger2026double,
title = {{Double Parton Distributions in the nucleon: Lattice parameter dependence}},
author = {Daniel Reitinger and Christian Zimmermann and Andreas Schäfer},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.02752},
eprint = {2609.02752},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.02752},
note = {CC BY 4.0},
}
RIS
TY - UNPB
TI - Double Parton Distributions in the nucleon: Lattice parameter dependence
AU - Daniel Reitinger
AU - Christian Zimmermann
AU - Andreas Schäfer
PY - 2026
DA - 2026/09/02
PB - arXiv
DO - 10.48550/arxiv.2609.02752
UR - https://arxiv.org/abs/2609.02752
AB - To make full use of the HL-LHC, especially in the search for BSM physics, all Standard Model backgrounds have to be understood with increased precision. This is especially difficult for Double Parton Interactions (DPIs) and more generally Multi Parton Interactions (MPIs), which are very difficult to isolate precisely in experiment. DPIs are parameterized by Double Parton Distributions (DPDs) and the lattice determination of the latter is, therefore, especially attractive. In our previous work on DPDs on the lattice, we focused on the results obtained from one gauge ensemble with higher than physical pion mass. In this work, we extend our efforts by investigating artifacts introduced by finite volume and the dependence on the lattice spacing. Moreover, we consider the dependence on the mass parameters. This study is carried out by employing the Wilson-Clover fermion gauge ensembles generated by the CLS collaboration.
ER -