Asymmetry Parameter of the $K_1(1270,1400)$ by Analyzing the $B\to K_1\nu \bar{\nu }$ Transition Form Factors within QCD

Abstract

Separating the mixture of the $K_1(1270)$ and $K_1(1400)$ states, the $B\to K_1(1270,1400)\nu \bar{\nu }$ transition form factors are calculated in the three-point QCD sum rules approach. The longitudinal, transverse and total decay widths as well as the asymmetry parameter, characterizing the polarization of the axial $K_1(1270,1400)$ and the branching ratio for these decays are evaluated.

arXiv comment25 pages, 3 figures, 3 tables

References in corpus (17)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Effective Hamiltonian for $B \ra X_s e^+ e^-$ Beyond Leading Logarithms in the NDR and HV Schemes
• QCD Sum Rules, a Modern Perspective
• Phenomenology of non-standard Z couplings in exclusive semileptonic b -> s transitions
• Search for Dark Matter in b -> s Transitions with Missing Energy
• Light-Cone Distribution Amplitudes of Axial-vector Mesons
• Hadronic Charmed Meson Decays Involving Axial Vector Mesons
• Towards resolution of the enigmas of P-wave meson spectroscopy
• Covariant Light-Front Approach for B to K* gamma, K_1 gamma, K*_2 gamma Decays
• $B\to K_1\gamma$ Decays in the Light-Cone QCD Sum Rules
• Form Factors of $B_{u,d,s}$ Decays into P-Wave Axial-Vector Mesons in the Light-Cone Sum Rule Approach
• K1(1270)-K1(1400) Mixing Angle and New-Physics Effects in B to K1 l+ l- Decays
• Light-Cone Distribution Amplitudes for the Light $1^1{P}_1$ Mesons
• The Effects of Fourth Generation on the Total Branching Ratio and the Lepton Polarization in $Λ_b \rar Λ\ell^+ \ell^-$ decay
• Radiative $B\to K_1$ decays in the light-cone sum rules
• Branching ratio for B -> K_1 gamma decay in next-to-leading order in LEET

Cited by in corpus (5)

• B -> K1 l^+l^- Decays in a Family Non-universal Z' Model
• Strong coupling constants of bottom and charmed mesons with scalar, pseudoscalar and axial vector kaons
• Semileptonic $D_q\to K_1\ell \nu$ and nonleptonic $D\to K_1\pi$ decays in three--point QCD sum rules and factorization approach
• Semileptonic $D_{(s)}\to A{\ell }^{+}\nu$ and nonleptonic $D\to K_1(1270,1400)\pi$ decays in LCSR
• Analysis of the semileptonic $B\to K_1{\ell }^{+}{\ell }^{-}$transitions and non-leptonic $B\to K_1\gamma$ decay in the AdS/QCD correspondence