Experimental estimation of the lifetime of atoms formed by pi+ and pi- mesons
Oct, 1994
6 pages
Published in:
- Phys.Lett.B 338 (1994) 478-482
Report number:
- JINR-E1-94-423
Experiments:
- SERP
Citations per year
Abstract: (Elsevier)
Based on observation [L.G. Afanasyev et al., Phys. Lett. B 308 (1993) 200] of 272±49 atoms formed by π + and π − an estimation of the atom lifetime in the ground (1S) state is obtained: τ 1 = (2.9 +∞ −2.1 ) · 10 −15 s or τ 1 > 0.6·10 −15 s at 90% confidence level. Atoms were produced in inclusive p Ta interactions at 70 GeV.- p nucleus: inclusive reaction
- tantalum
- atom: mesic atom
- bound state: (pi+ pi-)
- pi: pair production
- pair production: pi
- bound state: interaction
- interaction: bound state
- cross section
- bound state: lifetime
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