On the close to threshold meson production in neutron-neutron collisions

Moskal, P.; Adam, H. -H.; Budzanowski, A.; Goetz, T.; Grzonka, D.; Jarczyk, L.; Khoukaz, A.; Kilian, K.; Kolf, C.; Kowina, P.; Lang, N.; Lister, T.; Oelert, W.; Quentmeier, C.; Santo, R.; Schepers, G.; Sefzick, T.; Siemaszko, M.; Smyrski, J.; Steltenkamp, S.; Strzalkowski, A.; Winter, P.; Wolke, M.; Wuestner, P.; Zipper, W.

On the close to threshold meson production in neutron-neutron collisions

Authors

Description

A method of measuring the close to threshold meson production in neutron-neutron collisions is described where the momenta of the colliding neutrons can be determined with the accuracy obtainable for the proton-proton reaction. The technique is based on the double quasi-free nn --> nn X^0 reaction, where deuterons are used as a source of neutrons
6 pages, 2 figures, to be published in Phys. Lett. B