Rare semileptonicBsdecays toηandη′mesons in QCD

Relativistic description of weak decays of Bs mesons

“…In Table X we present our predictions for the nonresonant branching fractions of the rare semileptonic B s decays and compare them with previous calculations [20,[28][29][30][31] and available experimental data [6,27]. In Ref.…”

“…Three-point QCD sum rules are used for the analysis of the rare semileptonic B s decays into η(η ′ ) and lepton pair in Ref. [30]. In Ref.…”

Light cone distribution amplitudes of excited p -wave heavy quarkonia at leading twist

“…Hadron interactions constitute part of the observables involving hadrons. In light cone QCD sum rules, these interactions are expressed in terms of light-cone distribution amplitudes (LCDAs) [2,[9][10][11][12][13][14][15][16][17][18][19][20][21][22]. Hence, it is of crucial importance to be able to calculate these LCDAs for the hadrons.…”

“…(1), the hadron H(p) is on-shell. Such correlation functions reduce to expressions involving LCDAs once an expansion around x 2 = 0 is performed [2,9,10,[14][15][16]. Such an expansion allows one to perform a partial summation of the operators appearing in a usual x = 0 expansion in terms of their twist, which is defined as the difference between the dimension and spin of an operator [2].…”

g_{D^{\ast }_{s}D K^{\ast }(892)} and g_{B^{\ast }_{s}B K^{\ast }(892)} coupling constants in QCD sum rules

“…In this connection, excited experimental results obtained in BABAR, FERMILAB, CLEO, CDF, D0, etc. [1][2][3][4][5][6][7][8][9] and some physical properties of these mesons have been studied using various theoretical models (see for instance [10][11][12][13][14][15]). …”