Solvent Effects on π-π Charge-Transfer Complexations

Search for direct CP violating charge asymmetries in K ± → π ± π + π − and K ± → π ± π 0 π 0 decays

A measurement of the direct CP violating charge asymmetries of the Dalitz plot linear slopes Ag = (g + − g)/(g + g) in K → πππ and K → πππ decays by the NA48/2 experiment at CERN SPS is presented. A new technique of asymmetry measurement involving simultaneous K and K beams and a large data sample collected allowed a result of an unprecedented precision. The charge asymmetries were measured to ...

Interparticle Charge Transfer Mediated by π-π Stacking of Aromatic Moieties

Lately intense research interests have been focused on the electronic conductivity properties of transition-metal nanoparticles (e.g., Au, Pd, and Ag) that are passivated by an organic monolayer (i.e., the so-called monolayer-protected nanoparticles).1 With such a core-shell composite nanostructure, the resulting conductivity can be tailored by the combined effects of the conductive inorganic c...

π-N charge exchange and π +-π 0 scattering at low energies ∗

Theoretical study of the effects of substituent and quadrupole moment on π-π stacking interactions with coronene

Stability of the π-π stacking interactions in the Ben||substituted-coronene and HFBen||substituted-coronene complexes was studied using the computational quantum chemistry methods (where Ben and HFBen are benzene and hexaflourobenzene, || denotes π-π stacking interaction, substituted-coronene is coronene molecule which substituted with four X groups, and X= NH2, CH3, OH, H, F, CF3, CN and NO). ...

Thermal effects on dilepton production from π − π annihilation

We study finite temperature effects on dilepton production from pion-pion annihilation in hot hadronic matter. The softening of the pion dispersion relation in a medium is found to enhance the production rate of dileptons with invariant masses in the region of 2mπ(T ) < M < mρ. On the other hand, the reduction of the pion electromagnetic form factor at finite temperature leads to a suppression ...