Charm meson couplings in hard-wall Holographic QCD

Abstract

The four-flavor hard-wall holographic QCD is studied to evaluate the couplings of (D −( * −) , D0 , a

Holographic QCD model for $N_f=4$

“…To obtain Goldstone mode, the quark mass M q = 0 and the eigenvalue q 2 = 0 are chosen, and the analytical solution of ϕ is (e µ 2 z 2 − 1)/(2µ 2 )/ given by Eq. (19,20). Obviously, ϕ does not satisfy ∂ z ϕ (n)a (q, z)| z→zm = 0 at IR boundary.…”

“…[10] .The 'bottom-up' holographic models of QCD based on AdS/CFT have emerged as an effective approach to the low energy phenomenology of QCD, which have been widely and successfully used in describing hadron physics, especially light flavor hadron spectra [11][12][13][14][15]. On the other hand, the heavy flavor hadron spectra has been seldomly investigated in the framework of holographic QCD till very recently [16][17][18][19][20].…”

“…The hard-wall holographic QCD model has been directly extended to four flavors in Refs. [19,20], which in some sense can be regarded as the 5D version of the extended linear sigma model for four quark flavors [6], where the ground states of light flavor mesons,light-heavy flavor mesons as well as charmonium can be described. A holographic model for heavy-light mesons has been discussed in [16].…”

Running coupling constant at finite chemical potential and magnetic field from holography *

“…The unique advantage of holography makes it possible for us to study the various properties of the QGP through weaklycoupled gravitational theory. With the development of holographic QCD, the QCD phase transition [27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44][45], glueball and meson spectra [46][47][48][49][50][51][52][53][54], heavy quark potential [55][56][57][58][59][60], jet quenching [61][62][63][64][65][66][67] and many aspects of QCD have been studied both from top-down and bottom-up models in the last 20 years.…”

Running coupling constant at finite chemical potential and magnetic field from holography

“…The unique advantage of holography make it possible for us to study the various properties of the quark-gluon plasma(QGP) through weakly coupled gravitational theory. With the development of holo-graphic QCD, the QCD phase transition [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43][44], glueball and meson spectra [45][46][47][48][49][50][51][52][53], heavy quark potential [54][55][56][57][58][59], jet quenching [60][61][62][63][64][65][66] and many aspects of QCD have been studied both from top-down and bottom-up models in recent 20 years.…”