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The 39th International Symposium on Lattice Field Theory (Lattice 2022)

8–13 Aug 2022
Hörsaalzentrum Poppelsdorf
Europe/Berlin timezone

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Session

Nuclear Physics

11 Aug 2022, 11:30
CP1-HSZ/1.002 (CP1-HSZ) - HS6 (CP1-HSZ)

CP1-HSZ/1.002 (CP1-HSZ) - HS6

CP1-HSZ

50
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Conveners

Nuclear Physics: Nuclear Physics I

  • Andre Walker-Loud (Lawrence Berkeley National Laboratory)

Presentation materials

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  1. 368. Structure Factors of Neutron Matter
    Evan Berkowitz (Forschungszentrum Jülich)
    11/08/2022, 11:30
    Nuclear Physics
    Oral Presentation

    Accurate modeling of the many-body properties of the neutrinosphere appears important for a correct description of core-collapse supernovae. The neutrinosphere is within the region of validity of pionless effective field theory.

    We leverage techniques from lattice field theory to do a direct calculation of the many-body physics from leading-order pionless EFT. We present a calculation of...

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  2. 424. Symanzik Improvement of Non-Relativistic Field Theories
    Neill Warrington (Institute for Nuclear Theory)
    11/08/2022, 11:50
    Nuclear Physics
    Oral Presentation

    I will describe a method to reduce spatial discretization errors in lattice formulations of pionless effective field theory. All $O(\Delta x)$ errors are cancelled, and generalizing to higher orders is simple. The method relies on set of renormalization conditions fixed by finite-volume energy levels, and may be useful for supernova phenomenology and cold-atomic physics, where spatial...

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  3. 215. Nucleon-nucleon scattering from distillation
    Dr Jeremy Green (Trinity College Dublin)
    11/08/2022, 12:10
    Nuclear Physics
    Oral Presentation

    In published work, we reported a study of the H dibaryon in the continuum limit of SU(3)-flavor-symmetric lattice QCD with a pion/kaon/eta mass of roughly 420 MeV, employing finite-volume quantization conditions and distillation. The data were affected by large discretization effects, leading to a small binding energy in the continuum. In this talk, I will present results for nucleon-nucleon...

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  4. 163. Extracting the chiral nuclear force from the finite volume energy levels using the plane wave basis and eigenvector continuation
    Lu Meng (Ruhr University of Bochum)
    11/08/2022, 12:30
    Nuclear Physics
    Oral Presentation

    In this talk, I will illustrate an alternative approach to Luscher formulas for extracting the nuclear force from finite volume energy levels using the plane wave basis and eigenvector continuation. We adopt the formalism of semilocal momentum-space regularized chiral nuclear force up to fifth order to investigate the two-nucleon energy levels in the finite volumes using plane wave basis with...

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