Search for NN-decoupled dibaryons using the process $pp\to \gamma \gamma X$ below the pion production threshold

A. S. Khrykin, V. F. Boreiko, Yu. G. Budyashov +4

The energy spectrum for high energy $\gamma$-rays ($E_{\gamma }\ge 10$ MeV) from the process $pp\to \gamma \gamma X$ emitted at $90^0$ in the laboratory frame has been measured at an energy below the pio…