71 citations · 176 across the 13 of their papers we have counts for
14 papers
Double Parton Distributions in the nucleon: Lattice parameter dependence
Daniel Reitinger, Christian Zimmermann, Andreas Schäfer
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 difficul…
Extracting Mellin moments of double parton distributions from lattice data
Markus Diehl, Oskar Grocholski, Daniel Reitinger +2
Reconstructing Mellin moments of double parton distributions from calculations on a Euclidean lattice requires taking an integral over a variable that may be regarded as a Ioffe ti…
Valence Quark PDFs of the Proton from Two-Current Correlations in Lattice QCD
Christian Zimmermann, Andreas Schäfer
Following previous works on that topic, we consider Euclidean hadronic matrix elements in position space of two spatially separated local currents on the lattice, in order to extra…
Double parton distributions with flavor interference from lattice QCD
Daniel Reitinger, Christian Zimmermann, Markus Diehl +1
We study double parton distributions with flavor interference in the nucleon and compare them with previous results for the flavor diagonal case. We investigate both unpolarized an…
Investigation of the hadronic light-by-light contribution to the muon using staggered fermions
Christian Zimmermann, Antoine Gérardin
Hadronic contributions dominate the uncertainty of the standard model prediction for the anomalous magnetic moment of the muon. In this work, we describe an ongoing lattice calcula…
Double parton distributions in the nucleon on the lattice: Flavor interference effects
Christian Zimmermann, Daniel Reitinger
Information about double parton distributions (DPDs) can be obtained by calculating four-point functions on the lattice. We continue our study on the first DPD Mellin moment of the…
Double parton distributions in the nucleon from lattice simulations
Christian Zimmermann
We provide a first study of Mellin moments of double parton distributions (DPDs) in the nucleon on the lattice, where we consider several combinations of quark flavors and polariza…
Double parton distributions in the nucleon from lattice QCD
Gunnar S. Bali, Markus Diehl, Benjamin Gläßle +2
We evaluate nucleon four-point functions in the framework of lattice QCD in order to extract the first Mellin moment of double parton distributions (DPDs) in the unpolarized proton…
Determination of the Collins-Soper Kernel from Lattice QCD
Maximilian Schlemmer, Alexey Vladimirov, Christian Zimmermann +2
We present lattice results for the non-perturbative Collins-Soper (CS) kernel, which describes the energy-dependence of transverse momentum-dependent parton distributions (TMDs). T…
Double parton distributions in the pion from lattice QCD
Gunnar S. Bali, Luca Castagnini, Markus Diehl +4
We perform a lattice study of double parton distributions in the pion, using the relationship between their Mellin moments and pion matrix elements of two local currents. A good st…
Two-current correlations and DPDs for the nucleon on the lattice
Christian Zimmermann
We calculate correlation functions of two local operators within the nucleon carrying momentum. We resolve their dependence on the spatial distance of the currents. This is carried…
Two-current correlations in the pion on the lattice
Gunnar S. Bali, Peter Bruns, Luca Castagnini +6
We perform a systematic study of the correlation functions of two quark currents in a pion using lattice QCD. We obtain good signals for all but one of the relevant Wick contractio…
Double Parton Distributions of the Pion
Christian Zimmermann
The effects of double hard interactions are no longer negligible at energy scales reached at the LHC. Double parton scattering (DPS) processes are often described by taking the pro…
Non-Interacting Fermions in a One-Dimensional Harmonic Atom Trap: Exact One-Particle Properties at Zero Temperature
F. Gleisberg, W. Wonneberger, U. Schloeder +1
One-particle properties of non-interacting Fermions in a one-dimensional harmonic trap and at zero temperature are studied. Exact expressions and asymptotic results for large Fermi…