ar X iv : h ep - t h / 06 10 27 0 v 1 2 5 O ct 2 00 6 On unquenched N = 2 holographic flavor
نویسنده
چکیده
The addition of fundamental degrees of freedom to a theory which is dual (at low energies) to N = 2 SYM in 1+3 dimensions is studied. The gauge theory lives on a stack of Nc D5 branes wrapping an S with the appropriate twist, while the fundamental hypermultiplets are introduced by adding a different set of Nf D5-branes. In a simple case, a system of first order equations taking into account the backreaction of the Nf ∼ Nc flavor branes is derived. From it, the modification of the holomorphic coupling is computed explicitly. Mesonic excitations are also discussed. CPHT-RR 080.1006 hep-th/0610270 [email protected]
منابع مشابه
ar X iv : h ep - l at / 0 61 01 08 v 1 1 9 O ct 2 00 6 Λ̄ , λ 1 and m b in three - flavor ( lattice ) QCD
The heavy-quark expansion for inclusive semi-leptonic B decays introduces Λ̄ and λ1, which are matrix elements in heavy-quark effective field theory. We review how they can be obtained from an analysis of the heavy quark mass dependence of heavy-light meson masses in lattice QCD. We present preliminary results for the bottom quark mass, mb, using Λ̄ and λ1 for the Bs meson from a 2+1 sea-flavor u...
متن کاملar X iv : h ep - p h / 05 06 27 0 v 1 27 J un 2 00 5 Coupled - channel model for charmonium levels and an option for X ( 3872 )
متن کامل
ذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2006