Considered is the direct N=1 SQCD-like Φ-theory with SU(Nc​)
colors and 3Nc​/2<NF​<2Nc​ flavors of light quarks Q​,Q.
Besides, it includes NF2​ additional colorless but flavored fields
Φij​ with the large mass parameter μΦ​≫ΛQ​,
interacting with quarks through the Yukawa coupling. In parallel, is considered
its Seiberg's dual variant, i.e. the dΦ-theory with (NF​−Nc​) dual
colors, NF​ flavors of dual quarks q​,q and NF2​
elementary mion fields Mji​→(Q​j​Qi).
In considered here vacua, the quarks of both theories are in the conformal
regimes at scales μ<ΛQ​. The mass spectra are calculated in sections
4 and 5. It is shown that they are different in the direct and dual theories,
in disagreement with the Seiberg hypothesis about equivalence of two such
theories.
Besides it is shown in the direct theory that a qualitatively new phenomenon
takes place: the seemingly heavy fields Φ `return back' and there appear
two additional generations of light Φ-particles with small masses
μ2,3pole​(Φ)≪ΛQ​.
In Conclusions also presented comparison of mass spectra of these two
theories for such values of parameters when the direct theory is in the very
strong coupling regime, while the dual one is in the weak coupling IR-free
logarithmic regime. It is shown that mass spectra of these two theories are
parametrically different in this case.Comment: 16 pages. Small improvements in the text, typos corrected, reference
added. Talk given at Session of Nucl.Phys. section of RAS, Novosibirsk,
Russia, 10-12 March 202