论文标题

硬壁全息QCD中的魅力梅森耦合

Charm meson couplings in hard-wall Holographic QCD

论文作者

Momeni, S., Saghebfar, M.

论文摘要

研究了四型硬毛全息QCD,以评估$(d^{_ { - (* - )}}的耦合b_1^{_-})$,$(d_ {s}^{_ { - (* - )}},\ bar {d}^{_ 0},k_ {1a}^{_---}^{_--}) k_ {1b}^{_ { - (* - )}})$,$(d_s^{_ {+(*+)}},d^{_+},k_ {1a}^{_ _ 0})$ k_ {1b}^{_ 0})$,$(d^{_ { - (* - )}},\ bar {d}^{_ {0(*0)}},ρ^{_---})$ \ bar {d}^{_ {0(*0)}},k^{_ {* - }})$,$(d^{_ {0(*0)}},\ bar {d}}^{_ {_ {_ {0(*0)}}} \ bar {d} _1^{_ 0},π^{_--})$,$(d_ {s1}^{_--},\ bar {d} _1^{_ 0} \ bar {d} _1^{_ 0},η_c)$,$(ψ,d^{_ {0(*0)}},d^{_+},π^{_--} π^{_ 0})$,$(ψ,d_ {s}^{_ {+(*+)}},d^{_--},k^{_ 0})$,$(ψ,d^,d^,d^{_ {0(*0)}}},d^},d^} d^{_ {0(*0)}},d^{_+},b_1^{_--})$,$(ψ,d_s^{_ {+(*+)}},d^{__--} d_s^{_ {+(*+)}},d^{_--},k_ {1b}^{_ 0})$ vertices。此外,$ d^{_ {0(*0)}} $,$ d_s^{_ { - (* - (* - )}} $,$ω$,$ω$,$ d_1^$,$ d_1^{_ 0} $,$ d_1^$,$ d_1^$,$ d_1^{_ _ _ { - } $,$ d_1 { - $ d_ {s1}^{_--} $和$χ_ {_ {_ {c1}} $以及$π^ - $,$ d^{_ { - (* - (* - )}}} $,$ K^ - $ k^ - ,$ d_1^ - $ d_1^ - $,$ d_1^{_1^ - ,$ d_1^{ $ d_s^{_ { - (* - )}} $在本研究中估计。我们的结果与质量和衰减常数的实验值也进行了比较。我们对强耦合的结果也与3PSR和LCSR预测进行了比较。

The four-flavor hard-wall holographic QCD is studied to evaluate the couplings of $(D^{_{-(*-)}}, \bar{D}^{_0}, a_1^{_-})$, $(D^{_{-(*-)}}, \bar{D}^{_0}, b_1^{_-})$, $(D_{s}^{_{-(*-)}},\bar{D}^{_0}, K_{1A}^{_-})$, $(D_s^{_{-(*-)}}, \bar{D}^{_0}, K_{1B}^{_{-(*-)}})$, $(D_s^{_{+(*+)}}, D^{_+}, K_{1A}^{_0})$, $(D_s^{_{+(*+)}}, D^{_+}, K_{1B}^{_0})$, $(D^{_{-(*-)}}, \bar{D}^{_{0(*0)}}, ρ^{_-})$, $(D_s^{_{-(*-)}}, \bar{D}^{_{0(*0)}}, K^{_{*-}})$, $(D^{_{0(*0)}}, \bar{D}^{_{0(*0)}}, ψ)$, $(D_1^{_-}, \bar{D}_1^{_0}, π^{_-})$, $(D_{s1}^{_-}, \bar{D}_1^{_0}, K^{_{-}})$, $(D_1^{_0}, \bar{D}_1^{_0}, η_c)$, $(ψ, D^{_{0(*0)}}, D^{_+}, π^{_-})$, $(ψ, D^{_{0(*0)}}, \bar{D}^{_0}, π^{_0})$, $(ψ, D_{s}^{_{+(*+)}}, D^{_-}, K^{_0})$, $(ψ, D^{_{0(*0)}}, D^{_+}, a_1^{_-})$, $(ψ, D^{_{0(*0)}}, D^{_+}, b_1^{_-})$, $(ψ, D_s^{_{+(*+)}}, D^{_-}, K_{1B}^{_0})$ and $(ψ, D_s^{_{+(*+)}}, D^{_-}, K_{1B}^{_0})$ vertices. Moreover, the values of the masses of $D^{_{0(*0)}}$, $D_s^{_{-(*-)}}$, $ω$, $ψ$, $D_1^{_0}$, $D_1^{_{-}}$, $K^0$, $η_{c}$, $D_{s1}^{_-}$ and $χ_{_{c1}}$ as well as the decay constant of $π^-$, $D^{_{-(*-)}}$, $K^-$, $ρ^-$, $D_1^{_-}$ , $a_1^-$ and $D_s^{_{-(*-)}}$ are estimated in this study. A comparison is also made between our results and the experimental values of the masses and decay constants. Our results for strong couplings are also compared with the 3PSR and LCSR predictions.

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