<page_title> Pion </page_title> <section_title> Neutral pion decays </section_title> <table> <cell> π+ <col_header> Particle symbol </col_header> </cell> <cell> π− <col_header> Antiparticle symbol </col_header> </cell> <cell> 2.6033 ± 0.0005 × 10−8 <col_header> Mean lifetime (s) </col_header> </cell> </table>
The π± mesons have a mean lifetime of 2.6033×10−8 s.