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Tensor Charges and their Impact on Physics Beyond the Standard Model

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arxiv 2112.05330 v1 pith:SG3CR5G4 submitted 2021-12-10 hep-lat

Tensor Charges and their Impact on Physics Beyond the Standard Model

classification hep-lat
keywords tensorbeyondchargelatticemodelneutronquarkstandard
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The nucleon tensor charge, $g_T$, is an important quantity in the search for beyond the Standard Model tensor interactions in neutron and nuclear $\beta$-decays as well as the contribution of the quark electric dipole moment (EDM) to the neutron EDM. We present results from the QCDSF/UKQCD/CSSM collaboration for the tensor charge, $g_T$, using lattice QCD methods and the Feynman-Hellmann theorem. We use a flavour symmetry breaking method to systematically approach the physical quark mass using ensembles that span three lattice spacings.

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