COSMOLOGY 4

1. COSMOLOGY 4

2. CPT symmetry – an example using n (massless) left-handed neutrinos exist, while right handed ones don’t left-handed neutrino CPT L #  - L # spin - spin right-handed anti-neutrino does exist CPT preserved Charge L #  - L # left-handed anti-neutrino does not exist C violated Parity spin spin vel.  - vel. right-handed neutrino going in the opposite dir. does not exist P violated Time spin - spin vel.  - vel. left-handed neutrino going in the opposite dir. does exist T preserved Charge-Parity L #  - L # spin spin vel.  - vel. right-handed anti-neutrino going In the opposite dir. does exist CP preserved