Page 307 - Radiochemistry and nuclear chemistry

2x106; - e-+v,+v,,
p+e-+G,
889; -
stable
stable
stable
stable
O.OOO5486
0.113366
1.007276
1.008665
o?
0
"elementary in nuclide raactions particles" Rest mass (s); decay mode Life time (u) (MeV) Cosmic Radiation and Elementary Particles ~ not conserved; s=spin quantum number. of parity and parity sign; P-no=parity and and all nuclei. *K- to 1673 MeV for R-, and lifetimes = lo-" s). with m, 1116 for A' See also Table 10.2. is 135.0 MeV. 291
0.5110
105.6
938.3
939.6
o?
0
TABLE 10.1, Cornman Symbol n P P- e vp ve. A-yes=baryon number am.wvd, Pf=conservation All these particles have their anti-particles, except for the photon and mesons, which are their own anti-particles. and p). hyperons (also called "strangebaryons", no rest mass

Name neutron proton muon electron neutrino

(n x+ decay into corresponding anti-particles in a similar way.

W, W. S=Strong interdon; W=Weak hdon; tBaryonsincludethenncleons

Class Baryonst (nucleons): S, A-Y~, s=% P+. Mesons: S. P-, A-no. s=o Leptons++? A-no, P-no, s=% Photon: A-no, P-no. s= 1