1.

Boundstate double$\beta $ decay
/ Babič, A. ; Štefánik, D. ; Krivoruchenko, M.I. ; Šimkovic, F.
We consider alternative modes of twoneutrino and neutrinoless double$\beta $ decays in which one $\beta $ electron goes over to a continuous spectrum and the other occupies a vacant bound level of the daughter ion. [...]
Published in Physical Review C 98 (2018)
10.1103/PhysRevC.98.065501
arXiv:1805.07815
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2.

Interpolating formula for the $0\nu \beta \beta $decay halflife in the case of light and heavy neutrino mass mechanisms
/ Babič, A. ; Kovalenko, S. ; Krivoruchenko, M. I. ; Šimkovic, F.
We revisit the “interpolating formula” proposed in our previous publication. [...]
Published in Physical Review D 98 (2018)
10.1103/PhysRevD.98.015003
arXiv:1804.04218
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3.

${\pi}_{e3}$ Form Factor ${f}_{}$ Near the Mass Shell
/ Krivoruchenko, M. I.
The generalized WardTakahashi identity (gWTI) in the pion sector for broken isotopic symmetry is derived and used for the modelindependent calculation of the longitudinal form factor ${f}_{}$ of the ${\pi}_{e3}$ vector vertex. [...]
Published in Advances in High Energy Physics 2015 (2015) 656239
10.1155/2015/656239
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