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Nuclear Theory·nucl-th

Monday·June 22, 2020

5 papers—3 primary·2 cross-listed

All5Primary3Cross-lists2
  1. 04

    [Submitted on 18 Jun 2020] (cross-list from hep-ph)

    Asymmetric jet clustering in deep-inelastic scattering

    Miguel Arratia🇺🇸 · Yiannis Makris🇮🇹 · Duff Neill🇺🇸 · Felix Ringer🇺🇸 · Nobuo Sato🇺🇸

    We propose a new jet algorithm for deep-inelastic scattering (DIS) that accounts for the forward-backward asymmetry in the Breit frame. The Centauro algorithm is longitudinally invariant and can cluster jets with Born kinematics, which enables novel studies of transverse-momentum-dependent observables. Furthermore, we show that spherically-invariant algorithms in the Breit frame give access to low-energy jets from current fragmentation. We propose novel studies in unpolarized, polarized, and nuclear DIS at the future Electron-Ion Collider.

    Comments:
    7 pages and 7 figures
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Experiment (nucl-ex); Nuclear Theory (nucl-th)
    arXiv:
    2006.10751 [pdf]
    PRD(2021)·51 citations
  2. 05

    [Submitted on 19 Jun 2020] (cross-list from hep-ph)

    Master Integrals for two-loop QCD corrections to Quasi PDFs

    Long-Bin Chen🇨🇳 · Wei Wang🇨🇳 · Ruilin Zhu🇨🇳

    We compute the master integrals for two-loop QCD corrections to quasi parton distribution functions (PDFs) in large momentum effective theory. Analytical results of the master integrals are derived using the method of differential equations, along with a proper choice of canonical basis. The results of master integrals are expressed in terms of Goncharov polylogarithms. These integrals allow to extract the two-loop short-distance matching coefficients between quasi and light cone PDFs in large momentum effective theory, and are helpful to extract the nucleon PDFs from first principles.

    Comments:
    21 pages
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); High Energy Physics — Lattice (hep-lat); Nuclear Theory (nucl-th)
    arXiv:
    2006.10917 [pdf]
    JHEP(2020)·35 citations

Affiliations

first authorsco-authorsvia INSPIRE