QCD factorization for B→PP and B→PV decays

CP violation in multibody B decays from QCD factorization

“…It has been discussed in [1,2] that for this part of the phase space the same proof of factorization as for the two-body decays [3][4][5][6] is valid. However, the non-perturbative input given by the matrix elements of the factorized operators is different: in the case of three-body decays the light-cone distribution of two collinearly moving pions and the soft B → ππ form factor are needed.…”

“…[6]), and the objects f π , f + , F em π and F I t are non-perturbative quantities to be discussed in section 3. The amplitude in eq.…”

Studying ofBs0−B¯s0mixing andBs→KWang1, Xu2, Chang3 et al. 2011Phys. Rev. D383430View full textAdd to dashboardCite

“…Comparing with the theoretical predictions for these observables in Refs. [14][15][16], one would find that the experimental measurements of branching ratio are in agreement with the SM predictions within their large theoretical uncertainties.…”

“…We will use the QCDF amplitudes of these decays derived in the comprehensive papers [15,26] as inputs for the SM expectations.…”

Three-particle contributions to the renormalisation ofB-meson light-cone distribution amplitudes

“…The case of heavy-light mesons has been discussed only recently [17,18], mainly due to their importance in relation with B-physics, as shown in the case of non-leptonic decays [1][2][3], semileptonic decays [19,20], radiative decays [21][22][23][24][25]. It is possible to define two twoparton distribution amplitudes φ + and φ − from the most simple non-local matrix element: It turns out that only one distribution amplitude, φ + , enters most of the computations considered in the framework of factorisation (non-leptonic decays, B → V γ, B → γℓν) at leading order in 1/m B .…”