4 research outputs found
OBSERVATION OF STRUCTURES IN THE 4-PION INVARIANT MASS IN ANTIPROTON-HE-4 ANNIHILATION AT REST (OBELIX DATA, PS201 EXPERIMENT AT LEAR)
Two sharp structures at about 1200 MeV/c2 and 1400 MeV/c2 are observed in the pi+-pi--pi+-pi--system invariant mass in antiproton-He-4 annihilation at rest. No similar signals are seen in the corresponding antiproton-proton data. A similar observation has been made in the streamer chamber data (see Ref. 1)
Observation of structures in the 4-pion invariant mass in antiproton-HE-4 annihilation at rest (obelix data, PS201 experiment at lear)
Two sharp structures at about 1200 MeV/c2 and 1400 MeV/c2 are observed in the pi+-pi--pi+-pi--system invariant mass in antiproton-He-4 annihilation at rest. No similar signals are seen in the corresponding antiproton-proton data. A similar observation has been made in the streamer chamber data