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Nuclear Theory·nucl-th

Monday·September 17, 2018

5 papers—3 primary·2 cross-listed

All5Primary3Cross-lists2
  1. 04

    [Submitted on 14 Sept 2018] (cross-list from hep-ph)

    Holographic description of total hadronic cross sections at high energies

    Akira Watanabe🇨🇳 · Mei Huang🇨🇳

    We investigate the hadron-hadron total cross sections at high energies in the framework of holographic QCD. In our model setup, the involved strong interaction is described by the Brower-Polchinski-Strassler-Tan Pomeron exchange kernel, and the two form factors are obtained from the bottom-up AdS/QCD models. We show that the resulting nucleon-nucleon total cross section is consistent with the experimental data recently measured by the TOTEM collaboration at the LHC. As examples to see the general versatility of the model, we also present our analysis on the pion-nucleon and pion-pion cases, which can be predicted because all the adjustable parameters are fixed by the nucleon-nucleon data.

    Comments:
    7 pages, 2 figures, prepared for the proceedings of QCD@Work 2018 - International Workshop on Quantum Chromodynamics, 25 - 28 June 2018, Matera, Italy
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1809.05335 [pdf]
    EPJ Web Conf.(2018)·0 citations
  2. 05

    [Submitted on 14 Sept 2018] (cross-list from hep-ph)

    Forward trijet production in proton-nucleus collisions

    Edmond Iancu🇫🇷 · Yair Mulian🇫🇷

    Using the formalism of the light-cone wave function in perturbative QCD together with the hybrid factorization, we compute the cross-section for three particle production at forward rapidities in proton-nucleus collisions. We focus on the quark channel, in which the three produced partons -- a quark accompanied by a gluon pair, or two quarks plus one antiquark -- are all generated via two successive splittings starting with a quark that was originally collinear with the proton. The three partons are put on-shell by their scattering off the nuclear target, described as a Lorentz-contracted "shockwave". The three-parton component of the quark light-cone wave function that we compute on this occasion is also an ingredient for other interesting calculations, like the next-to-leading order correction to the cross-section for the production of a pair of jets.

    Comments:
    63 pages, 31 figures
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1809.05526 [pdf]
    NPA(2019)·27 citations

Affiliations

first authorsco-authorsvia INSPIRE