Since the discovery of an unconventional superconducting state in UTe2 it became clear that its normal state exhibits intriguing heavy fermion behavior due to strong electron correlations. Correlated band theory implemented as a combination of DFT with the Anderson impurity term with Coulomb repulsion U in the 5f shell is applied to UTe2. The small gap for U=0, is converted for U=3 eV to a flat band semimetal with small heavy-carrier Fermi surfaces. The calculated uranium moment is consistent with the Curie-Weiss values, and the spin and orbital moments are remarkably similar to Hund's rule values for an f3 ion. The spectral density is compared with angle-integrated and angle-resolved photoemission spectra, with an agreement that there is a strong 5f character at, and for several hundred meV below, the Fermi energy.
Support from GACR grant No. 18-06240S and SOLID21- CZ.02.1.01/0.0/0.0/16_019/0000760 is acknowledged.
