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Nuclear Theory·nucl-th

Thursday·August 2, 2018

3 papers—1 primary·2 cross-listed

All3Primary1Cross-lists2
  1. 01

    [Submitted on 1 Aug 2018]

    Re-examining the premise of isobaric collisions and a novel method to measure the chiral magnetic effect

    Hao-jie Xu🇨🇳 · Jie Zhao🇺🇸 · Xiaobao Wang🇨🇳 · Hanlin Li🇨🇳 · Zi-Wei Lin🇺🇸 · Caiwan Shen🇨🇳 · Fuqiang Wang🇨🇳

    In this proceeding we will show that the expectations of the isobaric and collisions on chiral magnetic effect (CME) search may not hold as originally anticipated due to large uncertainties in the isobaric nuclear structures. We demonstrate this using Woods-Saxon densities and the proton and neutron densities calculated by the density functional theory. Furthermore, a novel method is proposed to gauge background and possible CME contributions in the same system, intrinsically better than the isobaric collisions of two different systems. We illustrate the method with Monte Carlo Glauber and AMPT (A Multi-Phase Transport) simulations.

    Comments:
    4 pages, 3 figures, Quark Matter 2018 conference proceeding
    Subjects:
    Nuclear Theory (nucl-th); High Energy Physics — Phenomenology (hep-ph); Nuclear Experiment (nucl-ex)
    arXiv:
    1808.00133 [pdf]
    NPA(2019)·4 citations
  2. 02

    [Submitted on 1 Aug 2018] (cross-list from hep-ph)

    : a three meson bound state

    H. Garcilazo🇲🇽 · A. Valcarce🇪🇸

    By solving exactly the Faddeev equations for the bound-state problem of three mesons, we demonstrate that current theoretical predictions pointing to the existence of a deeply-bound doubly bottom axial vector tetraquark lead to the existence of a unique bound state of three mesons. We find that the state with quantum numbers , , is about 90\,MeV below any possible three -meson threshold for the reported binding of the doubly bottom axial vector tetraquark, .

    Comments:
    11 pages, 2 figures, to appear in Phys. Lett. B
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1808.00226 [pdf]
    PLB(2018)·12 citations
  3. 03

    [Submitted on 1 Aug 2018] (cross-list from hep-ph)

    Strangeness Neutrality and QCD Thermodynamics

    Wei-jie Fu🇨🇳 · Jan M. Pawlowski🇩🇪 · Fabian Rennecke🇺🇸

    Since the incident nuclei in heavy-ion collisions do not carry strangeness, the global net strangeness of the detected hadrons has to vanish. We investigate the impact of strangeness neutrality on the phase structure and thermodynamics of QCD at finite baryon and strangeness chemical potential. To this end, we study the low-energy sector of QCD within a Polyakov loop enhanced quark-meson effective theory with 2+1 dynamical quark flavors. Non-perturbative quantum, thermal, and density fluctuations are taken into account with the functional renormalization group. We show that the impact of strangeness neutrality on thermodynamic quantities such as the equation of state is sizable.

    Comments:
    21 pages, 24 figures
    Subjects:
    High Energy Physics — Phenomenology (hep-ph); Nuclear Theory (nucl-th)
    arXiv:
    1808.00410 [pdf]
    SciPost Phys.Core(2020)·60 citations

Affiliations

first authorsco-authorsvia INSPIRE