A new leading contribution to neutrinoless double-beta decay

27 Feb 2018 Cirigliano V. Dekens W. de Vries J. Graesser M. L. Mereghetti E. Pastore S. van Kolck U.

Within the framework of chiral effective field theory we discuss the leading contributions to the neutrinoless double-beta decay transition operator induced by light Majorana neutrinos. Based on renormalization arguments in both dimensional regularization with minimal subtraction and a coordinate-space cutoff scheme, we show the need to introduce a leading-order short-range operator, missing in all current calculations... (read more)

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Categories


  • HIGH ENERGY PHYSICS - PHENOMENOLOGY
  • HIGH ENERGY PHYSICS - LATTICE
  • NUCLEAR THEORY