Erratum:B→V,A,Ttensor form factors in the covariant light-front approach: Implications on radiative

Hai-Yang Cheng¹,

Chun-Khiang Chua²

Abstract

We reanalyze the B → M tensor form factors in a covariant light-front quark model, where M represents a vector meson V , an axial-vector meson A, or a tensor meson T . The treatment of masses and mixing angles in the K 1A,1B systems is improved, where K 1A and K 1B are the 3 P 1 and 1 P 1 states of the axial-vector meson K 1 , respectively. Rates of B → M γ decays are then calculated using the QCD factorization approach.

QCD-inspired determination of NJL model parameters

“…In Refs. [6,9], this interplay of the fixed points of gluon-induced four-quark interactions and the running gauge coupling has been used to obtain a first-principles estimate for the chiral phase transition temperature as a function of the number of quark flavors which has indeed been found to agree very well with state-of-the-art lattice QCD results [18,19]. Moreover, a corresponding fixed-point analysis in the presence of a finite magnetic field provides an explanation of inverse magnetic catalysis in QCD [20,21].…”

Size of directCPviolation in singly Cabibbo-suppressedDdecays

“…The annihilation amplitudes E f are formally 1/m c suppressed power corrections. However, SU(3) fits to the data yield (f = KK, ππ, Kπ) [15,16] …”

D(s)+ Decays and their CPV

“…Using the world average values of CF decay rates [9], Belle obtains the most precise branching fractions B(D + → K 0 S K + ) = (2.75 ± 0.08) × 10 −3 and B(D + s → K 0 s π + ) = (1.20 ± 0.09) × 10 −3 up to now. In the diagrammatic approach based on the framework of flavor SU(3) [10,11] the decay amplitudes are expressed in terms of topological quark flow diagrams: Tree, Color-suppressed tree, Annihilation, Singlet-emission with Annihilation, Exchange, and Singlet-emission with Exchange. Each diagram represents an amplitude which accounts for weak and strong interaction effects, to all orders, including long distance effects.…”

“…For example, in the flavor SU(3) symmetry limit, the rates for D 0 → K + K − and D 0 → π + π − decays should be the same, but experimental data tells us that the former is around three times larger than the latter [9]. Precise experimental data on the hadronic decay rates are thus needed to allow for better understanding of the sources of the flavor SU(3) symmetry breaking effects [10,11]. Experimental data on hadronic decay rates are also needed for example in calculations of the long distance contributions to the D 0 − D 0 mixing parameters [12].…”