Zobrazeno 1 - 10
of 375
pro vyhledávání: '"Momeni, S."'
Autor:
Momeni, S., Saghebfar, M.
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_{1
Externí odkaz:
http://arxiv.org/abs/2007.02273
Autor:
Momeni, S.
Publikováno v:
European Physical Journal C 80(6) 2020
The helicity form factors of the $D_{(s)}\to A \ell^+ \nu$ with $A=a_{1}^{-}, a_{1}^{0}, b_{1}^{-}, b_{1}^{0}, K_{1}(1270)$ and $K_{1}(1400)$ are calculated in the light-cone sum rules approach, up to twist-3 distribution amplitudes of the axial vect
Externí odkaz:
http://arxiv.org/abs/2004.02522
Autor:
Momeni, S., Khosravi, R.
We investigate the strong coupling constants of $D D A$, $D^{*}D^{*}A$ and $D^{*} D A$ vertices in the framework of the light-cone QCD sum rules, where $A$ is an axial vector meson such as $a_1, b_1, K_{1A}, K_{1B}, K_1(1270)$ and $K_1(1400)$. Using
Externí odkaz:
http://arxiv.org/abs/2003.04165
Autor:
Momeni, S., Khosravi, R.
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 46, 105006 (2019)
In this work, the transition form factors are calculated for the semileptonic $D_{(s)} \to A \ell^+ \nu$ where $A=a_{1}, b_{1}, K_{1}(1270,1400)$, i.e., $D^{+} \to a^{0}_{1} (b^{0}_{1}, K^{0}_{1}) \ell^+ \nu$, $D^{0} \to a^{-}_{1} (b^{-}_{1}) \ell^+
Externí odkaz:
http://arxiv.org/abs/1903.00860
Publikováno v:
Phys. Rev. D 99, 013001 (2019)
Form factors of $D$ decays into $J^{PC}=2^{++}$ tensor mesons are calculated in the light-cone sum rules approach up to twist-4 distribution amplitudes of the tensor meson. The masses of the tensor mesons are comparable to that of the charm quark mas
Externí odkaz:
http://arxiv.org/abs/1901.03873
Autor:
Momeni, S., Khosravi, R.
Publikováno v:
Eur. Phys. J. C 78, 805 (2018)
We consider the axial-vector mesons $K_1(1270)$ and $K_1(1400)$ as a mixture of two $|^3P_1\rangle$ and $|^1P_1\rangle$ states with the mixing angle $\theta$ that equal to $(-34\pm 13)^\circ$. We calculate the light-front distribution amplitudes (LFD
Externí odkaz:
http://arxiv.org/abs/1805.07046
Autor:
Momeni, S., Khosravi, R.
Publikováno v:
Phys. Rev. D 96, 016018 (2017)
The form factors of semileptonic $B_{(s)}\to a_{1}(K_1)\, \ell^{+}\ell^{-}$, $ \ell=\tau,\mu,e$ transitions are investigated in the framework of the light-cone sum rules with $B$-meson distribution amplitudes, which play an important role in exclusiv
Externí odkaz:
http://arxiv.org/abs/1804.04844
Publikováno v:
In Advances in Water Resources November 2022 169
