Journal Article

PUBDB-2024-05107

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Constraints for twist-two alien operators in QCD

Falcioni, G. ; Herzog, F. ; Moch, S.Extern* ; Van Thurenhout, S. (Corresponding author)Extern*

2024
Springer Heidelberg

This record in other databases:        

Please use a persistent id in citations: doi:10.1007/JHEP11(2024)080  doi:10.3204/PUBDB-2024-05107

Report No.: DESY-24-108; ZU-TH 43/24; arXiv:2409.02870

Abstract: Parton evolution equations in QCD are controlled by the anomalous dimensions of gauge-invariant twist-two spin-N quark and gluon operators. Under renormalization, these mix with gauge-variant operators of the same quantum numbers, referred to as alien operators. Our work addresses the systematic study of these alien operators at arbitrary spin N, using generalized BRST symmetry relations to derive their couplings and Feynman rules at all values of N. We observe how the all-N structure of the generalized (anti-)BRST constraints relates the couplings of alien operators with n + 1 gluons to those with n gluons. Realizing a bootstrap, we present all one-loop results necessary for performing the operator renormalization up to four loops in QCD.

Keyword(s): Higher-Order Perturbative Calculations ; Parton Distributions ; Renormalization and Regularization

Note: 28 pages, LaTex, 4 figures, all-N results in ancillary Mathematica file, journal version

---

Contributing Institute(s):

1. Uni Hamburg / Theorie (UNI/TH)

Research Program(s):

1. 899 - ohne Topic (POF4-899) (POF4-899)
2. QCDchallenge - QCD challenges in precision physics at the LHC (101104792) (101104792)
3. DFG project G:(GEPRIS)409651613 - FOR 2926: Next Generation Perturbative QCD for Hadron Structure: Preparing for the Electron-Ion Collider (409651613) (409651613)

Experiment(s):

1. LHC: ATLAS
2. LHC: CMS
3. LHC: LHCb

Appears in the scientific report 2024

---

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 Falcioni, G. ; Herzog, F. ; Moch, S.Extern* ; Van Thurenhout, S. (Corresponding author)Extern*
Constraints for twist-two alien operators in QCD
[10.3204/PUBDB-2025-01306]     Files  Fulltext by arXiv.org BibTeX | EndNote: XML, Text | RIS

---