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Nuclear Theory·nucl-th

Friday·April 29, 2016

8 papers—6 primary·2 cross-listed

All8Primary6Cross-lists2
  1. 07

    [Submitted on 28 Apr 2016] (cross-list from hep-lat)

    A Fast Algorithm for Lattice Hyperonic Potentials

    Hidekatsu Nemura🇯🇵 · Sinya Aoki🇯🇵 · Takumi Doi🇯🇵 · Shinya Gongyo🇯🇵 · Tetsuo Hatsuda🇯🇵 · Yoichi Ikeda🇯🇵 · Takashi Inoue🇯🇵 · Takumi Iritani🇯🇵 · Noriyoshi Ishii🇯🇵 · Takaya Miyamoto🇯🇵 · Keiko Murano🇯🇵 · Kenji Sasaki🇯🇵

    We describe an efficient algorithm to compute a large number of baryon-baryon interactions from to by means of HAL QCD method, which lays the groundwork for the nearly physical point lattice QCD calculation with volume (fm). Preliminary results of potential calculated with quark masses corresponding to (,)(146,525)MeV are presented.

    Comments:
    Talk given at the 12th International Conference on Hypernuclear and Strange Particle Physics (HYP2015), Sendai, Japan, 7-12 September, 2015, 4 pages, 3 figures
    Subjects:
    High Energy Physics — Lattice (hep-lat); Nuclear Theory (nucl-th)
    arXiv:
    1604.08346 [pdf]
    JPS Conf.Proc.(2017)·6 citations
  2. 08

    [Submitted on 27 Apr 2016] (cross-list from cond-mat.mtrl-sci)

    Scoping of material response under DEMO neutron irradiation: comparison with fission and influence of nuclear library selection

    M.R. Gilbert · J.-Ch. Sublet

    Predictions of material activation inventories will be a key input to virtually all aspects of the operation, safety and environmental assessment of future fusion nuclear plants. Additionally, the neutron-induced transmutation (change) of material composition (inventory) with time, and the creation and evolution of configurational damage from atomic displacements, require precise quantification because they can lead to significant changes in material properties, and thus influence reactor-component lifetime. A comprehensive scoping study has been performed to quantify the activation, transmutation (depletion and build-up) and immediate damage response under neutron irradiation for all naturally occurring elements from hydrogen to bismuth. The resulting database provides a global picture of the response of a material, covering the majority of nuclear technological space, but focussing specifically on typical conditions expected for a demonstration fusion power plant (DEMO). Results from fusion are compared against typical fission conditions for selected fusion relevant materials, demonstrating that the latter cannot be relied upon to give accurate scalable experimental predictions of material response in a future fusion reactor. Results from different nuclear data libraries are also compared, highlighting the variations and deficiencies.

    Comments:
    14 pages, 9 figures, submission to Fus. Eng. Des. special issue for 3rd joint IAEA-ITER technical meeting on ITER Materials and Technologies
    Subjects:
    cond-mat.mtrl-sci (cond-mat.mtrl-sci); Nuclear Theory (nucl-th); Instrumentation and Detectors (physics.ins-det)
    arXiv:
    1604.08496 [pdf]
    Fusion Eng.Des.(2017)·1 citation

Affiliations

first authorsco-authorsvia INSPIRE