A. Özpineci's research while affiliated with Abdus Salam International Centre for Theoretical Physics and other places

... By using the same correlator and keeping only the first term of the b-quark propagator (9), Ref. [11] calculated the LCSRs for the B → ρ TFFs A 1 , A 2 and V , and Ref. [23] calculated the LCSRs for the B → K * TFFs A 1 , ...

... In the past, theoretical analyses focused on a family of similar reactions, namely, the B → γl + l − and B → γlν decays (see, e.g., [16][17][18][19][20][21][22][23][24][25][26]); these processes are described by the same form factors as four-lepton B-decays, but evaluated at a zero value of one of the momenta squared. The corresponding form factors depend on one variable q ′2 , q ′ the momentum of the weak current; for instance, for radiative leptonic decays B → γl ′ ν ′ , one needs the form factors The four-lepton decay of interest, B → l + l − l ′ ν ′ , requires the form factors F i (q ′2 , q 2 ) for 0 < q 2 , q ′2 < M 2 B . ...

... Using the relation obtained in [28] which connected Λ and Σ 0 interpolating currents one can easily find the expression for the magnetic moment of Λ-hyperon: ...

... The expressions for differential decay rates and forward-backward asymmetry agree with the formulation of Ref. [102], and also reproduce the formulas of Refs. [103][104][105] for m s = 0 and m l = 0, while for m s = 0 and m l = 0 they reproduce the formulas of Ref. [106,107]. In the limit m s = 0, the expressions for lepton polarization asymmetries correspond to Refs. ...

... So these processes provided a unique platform to deepen our understanding on both quantum chromodynamics (QCD) and the dynamics of weak processes, and help to hunt for NP signs. Therefore, the rare decay of b → s attracted the attentions of both theorists and experimentalists [5][6][7][8][9][10][11]. ...

... In such cases, one may express the two-body production subamplitude P as a linear combination of elements of the two-body scattering amplitude T [5][6][7][8]. The latter quantities, which contain the full two-body dynamics, are then supposed to be known, either from experiment [9][10][11][12][13][14][15][16][17][18][19], or from theoretical considerations [20][21][22][23][24][25][26]. ...

... We will also examine the longitudinal, transverse, and normal components of the lepton polarization asymmetries (LPAs). It has been shown that for B meson decays that the LPAs are largely independent of the form factors in certain limits [6,11,12,[14][15][16][17]. We explore whether LPAs for the decays of the Λ b are also independent of the form factors in any kinematic regimes. ...

... Here C is the charge conjugation operator, A 1 1 = I, A 2 1 = A 1 2 = γ 5 , and A 2 2 = β where β is an arbitrary auxiliary parameter. It is shown in [14] that the current of Λ baryon can be obtained from the Σ 0 current with the help of following relations, ...

... In exclusive B → K, K * decays the long-distance effects in the meson transition amplitude of the effective Hamiltonian are encoded in the meson transition form factors which are the scalar functions of the square of momentum JHEP07(2013)006 transfer and are model dependent quantities. Many exclusive B meson processes based on b → s (d) + − such as B → K (K * ) + − [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21], B → φ + − [22], B → γ + − [23][24][25][26][27][28] and B → + − [29][30][31][32][33][34][35] have been studied in literature. In these studies various fameworks have been applied to the description of meson transition form factors of initial and final state meson like constituent quark models, QCD sum rules, lattice QCD, etc. ...

... In the past several decades, significant theoretical efforts have been made to study the decays [6][7][8][9][10][11][12][13] and [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31][32]. In [6], the branching fraction was reported based on the experimental data [31]. ...