QCD-compatible supermassive inert top-down holographic mesinos at intermediate coupling

A longstanding problem with the popular Sakai-Sugimoto holographic dual of thermal QCD is that the mesinos, the (nonsupersymmetric) fermionic partners of the mesons, are nearly isospectral with mesons and have an unsuppressed mesino-mesino-meson interaction, both being in contradiction with actual QCD. We solve this problem in a UV complete (and different) type-IIA string dual at intermediate coupling of realistic thermal QCD, in which the mesinos are shown to be much heavier than and noninteracting with mesons (the wave function/mass/interaction terms receiving no

M

-theory

O (R^{4})

corrections). In particular we derive a large-

N

enhancement of the Kaluza-Klein

(K K)

mass scale

M_{K K}

(from

M_{K K}

to

M_{K K}^{eff} \sim N^{1 + \frac{1}{O (1)}} M_{K K}

) arising from the construction of the type-IIA mirror [1] of the type-IIB dual [2] of thermal QCD-like theories, as well as the generation of a one-parameter family of

M_{K K}

-independent mass scale at

O (R^{4})

in the

M

-theory uplift [3], wherein the parameter can be made appropriately large. We also show that the mesino-mesino-single-(

ρ / π

)meson interactions, vanish identically in the aforementioned type-IIA holographic dual.

Note:

v3: LaTeX; 1+28 pages; minor edits

duality: thermal
duality: holography
duality: string
meson
quantum chromodynamics
wave function

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