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Emission of bremsstrahlung photons accompanying proton decay of nuclei isstudied. The new improved multipolar model describing such a process ispresented. The angular formalism of calculations of the matrix elements isstated in details. The bremsstrahlung probabilities for the $^{157}{\rm Ta}$,$^{161}{\rm Re}$, $^{167}{\rm Ir}$ and $^{185}{\rm Bi}$ nuclei decaying fromthe $2s_{1/2}$ state, the $^{109}_{53}{\rm I}_{56}$ and $^{112}_{55}{\rmCs}_{57}$ nuclei decaying from the $1d_{5/2}$ state, the $^{146}_{69}{\rmTm}_{77}$ and $^{151}_{71}{\rm Lu}_{80}$ nuclei decaying from the $0h_{11/2}$state are predicted. Such spectra have orders of values similar to theexperimental data for the bremsstrahlung photons emitted during the$\alpha$-decay. This indicates on real possibility to study bremsstrahlungphotons during proton decay experimentally and perform further measurements.

Multipolar model of bremsstrahlung accompanying proton-decay of nuclei