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Unformatted text preview: which gives m p0 = 133.5 MeV/ c 2 . 49. For the reaction p + p p + p + p , the Q-value is Q = [2 m p 2 m p m p0 ] c 2 = m p0 c 2 = 135.0 MeV . For the reaction p + p p + n + p + , the Q-value is Q = [2 m p m p m n m p+ ] c 2 = 938.3 MeV 939.6 MeV 139.6 MeV = 140.9 MeV . 50. For the reaction p + p + K , the Q-value is Q = [ m (p ) + m (p) m ( ) m (K )] c 2 = [(139.6 MeV/ c 2 ) + (938.3 MeV/ c 2 ) (1115.7 MeV/ c 2 ) (497.7 MeV/ c 2 )] c 2 = 535.5 MeV . The minimum initial kinetic energy produces the two particles moving together with the same speed, which we can consider to be a single particle with mass M = m + m K ....
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This note was uploaded on 09/13/2010 for the course PHYSICS 7 taught by Professor ? during the Spring '08 term at University of California, Berkeley.
- Spring '08