Journal Article

PUBDB-2026-00815

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png A quantitative study of two-loop splitting in double parton distributions

Diehl, M. (Corresponding author)DESY* ; Ploessl, P. J.DESY*

2026
Springer Heidelberg

This record in other databases:    

Please use a persistent id in citations: doi:10.1007/JHEP05(2026)158  doi:10.3204/PUBDB-2026-00815

Report No.: DESY-26-023; arXiv:2602.18233

Abstract: Double parton distributions at small distances between the two partons are dominated by a mechanism in which the two observed partons originate from the splitting of a single parton. This contribution can be computed in terms of single-parton distributions and perturbative splitting kernels. We demonstrate that two-loop corrections to these kernels can have a substantial quantitative impact and considerably improve the stability of predictions for double parton scattering. We also consider the impact of heavy quark masses in the two-loop splitting kernels in an approximate manner.

Keyword(s): Higher-Order Perturbative Calculations ; Parton Distributions ; Factorization ; Renormalization Group ; Resummation

Note: to be submitted for publication

---

Contributing Institute(s):

1. Theorie-Gruppe (T)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)
2. DFG project G:(GEPRIS)409651613 - FOR 2926: Next Generation Perturbative QCD for Hadron Structure: Preparing for the Electron-Ion Collider (409651613) (409651613)
3. DFG project G:(GEPRIS)430915355 - Multi-Parton Wechselwirkungen und Beiträge mit höherem Twist (430915355) (430915355)
4. COLORFREE - High-Precision Global Analysis of Color-Free LHC Processes at Small Recoil (101002090) (101002090)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2026

---

Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF >= 5 ; JCR ; National-Konsortium ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---

---

Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Preprint Diehl, M. (Corresponding author)DESY* ; Ploessl, P.DESY*
A quantitative study of two-loop splitting in double parton distributions
[10.3204/PUBDB-2026-00800]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---