Lattice QCD at physical pion mass with Nf=2+1+1 twisted mass fermions yields g_A^{u-d}=1.286(23), sigma_piN=41.6(3.8) MeV and per-flavor charges including charm.
IsoDAR@KamLAND: A Conceptual Design Report for the Technical Facility
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This conceptual design report describes the technical facility for the IsoDAR electron-antineutrino source at KamLAND. The IsoDAR source will allow an impressive program of neutrino oscillation and electroweak physics to be performed at KamLAND. This report provides information on the physics case, the conceptual design for the subsystems, alternative designs considered, specifics of installation at KamLAND, and identified needs for future development. We discuss the risks we have identified and our approach to mitigating those risks with this design. A substantial portion of the conceptual design is based on three years of experimental efforts and on industry experience. This report also includes information on the conventional facilities.
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Nucleon axial, tensor and scalar charges and $\sigma$-terms in lattice QCD
Lattice QCD at physical pion mass with Nf=2+1+1 twisted mass fermions yields g_A^{u-d}=1.286(23), sigma_piN=41.6(3.8) MeV and per-flavor charges including charm.