Resonant production of A + baryons in neutrino-nucleus interactions in a photographic emulsion
Batusov Yu. A. , Bunyatov S. A. , Kuznetsov O. M., Lyukov V. V. , Tret'yak V. I. , Gorichev P. A. , Egorov O. K. , Kolganova E. D. , Makhlyueva I. V. , Pozharova E. A. , Smirnitskii V. A., Shamanov V. V. , Ammosov V. V., Baranov V. I. , Gapienko V. A. , Klyukhin V. I., Koreshev V. I. , Pitukhin P. V. , Sirotenko V. I. , Slobodyuk E. A. , Wilczinska B., Wilczinski G., Wolter W. , Wojczek B. , Olszewski A. G. , Jurak A., Chernev Kh. , Ivanova, L. Voyvodic, W. Smart, J. Rubin, R. G. Ammar, J. Gress, R. E. P. Davis, N. Kwak, D. Coppage, R.Reimer, R. Stump, T. H. Burnett, R. J. Wilkes, S. Krzwdzinski M. , Lord J. J., Rosenbladt R., Bakic A. , Pick L.
A significant fraction, 0.5 8 + °227, of the charmed ìÓ+ baryons in neutrino interactions may be produced through the decays of 2C resonances. Three of four detected events involving ìÓ+ production are interpreted as the production and decay of charmed Σ° (2450), Σ+ + (2450) and2+ + (2510) resonances by the 2C ->ž ìÓ+ π ± mechanism. The mean value of the mass difference between lc (2450) and ì + is 162 ± 2 MeV/c2.