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We generalize the soft-wall and hard-wall models to a light-front holographicQCD model with a generic dilaton profile. The effective potential induced by ahigher power dilaton profile is interpreted as a stronger color confinement atlong distance, and it gradually evolves to the hard-wall model when the powerincreases to infinity. As an application, we investigate the exotic mesonstates recently discovered in experiments in the generic soft-wall model with ahigher power dilaton profile, and the results are in agreement with the spectraof the exotic mesons. Our calculation indicates a weaker interaction at shortdistance and a stronger interaction at large distance for the components in theexotic mesons. The generic dilaton profile deserves further scrutiny forunderstanding the strong interaction and for applications.

Light-front holographic QCD with generic dilaton profile