JINR rapid communications

The present collection of rapid communications from JINR, Dubna, contains eleven separate reports on the character of metastable states of the antiprotonic helium, next-to-next-to-leading order QCD analysis of combined data for xF3 structure function and higher-twist contribution, powerful neutron beams from accelerators, accounting of nucleon correlations for study of momentum distributions in nuclei, overlap functions in nuclear correlation methods and direct nucleon removal processes, molecular alterations underlying the spontaneous and γ-ray-induced point mutations at the white locus of Drosophila Melanogaster, superheavy elements' existence in nature, study of deep subbarrier reactions on a Pb target, numerical optimization of actively screened SC magnetic coil geometries, narrow resonances in the system of two π--mesons, a new method of analysis of intermediate energy neutron spectra. 28 figs., 8 tabs