Round 6: Tossup 4

Given these particles’ mean lifetime of 880 seconds (10[1])and the time from freeze-out to the onset of BBNS, one can calculate an abundance denoted Y. The timescale of these particles’ capture differentiates two reactions that occur in AGB (-5[1])stars and during supernovae, called the s- and r-processes. A different particle decays into one of these particles (-5[1])in the first (10[1])step (-5[1])of the (-5[1])p-p chain. [emphasize] Above the Chandrasekhar (“chun-druh-SHAY-kur”) limit but below the TOV limit, these particles’ degeneracy (10[1])pressure keeps massive stars from turning into black holes. (10[1])Pulsars are rapidly rotating members of a class of extremely dense stars (10[1])made of these particles. (10[1])For (10[1])10 points, name these subatomic (10[1])particles with no charge. ■END■ (10[3])

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