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Subleading contributions to the nuclear scalar isoscalar currents

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arxiv 2005.07433 v1 pith:MWCZP5E6 submitted 2020-05-15 nucl-th hep-ph

classification nucl-thhep-ph
keywords nuclearscalarcurrentcurrentsanalysesaxial-vectorchiralcontributions
verification ladder T0 review T1 audit T2 compute T3 formal
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We extend our recent analyses of the nuclear vector, axial-vector and pseudoscalar currents and derive the leading one-loop corrections to the two-nucleon scalar current operator in the framework of chiral effective field theory using the method of unitary transformation. We also show that the scalar current operators at zero momentum transfer are directly related to the quark mass dependence of the nuclear forces.

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