Based on concepts from quantum thermodynamics the two-level system coupled to a single electromagnetic mode is analyzed. Focusing case of detuning, where frequency does not match transition frequency, effective energies are derived for levels and photon energy. It shown that these should be used energy exchange with fermionic bosonic reservoirs in steady state order achieve thermodynamically co...

We consider nonresonant contributions in the Dalitz plot analysis of B → ρπ → π+π−π0 decay and their potential impact on the extraction of the CKM parameter α. In particular, we examine the role of the heavy mesons B∗ and B0, via the process B → π(B∗, B0) → π+π−π0, and their interference with resonant contributions in the ρ-mass region. We discuss the inherent uncertainties and suggest that the...

Meson-meson nonresonant reactions governed by the quark-interchange mechanism are studied in a potential that is derived from QCD. S-wave elastic phase shifts for I = 2 ππ and I = 3/2 Kπ scattering are obtained with wave functions determined by the central spin-independent term of the potential. The reactions include inelastic scatterings of two mesons in the ground-state pseudoscalar octet and...