Details

Autor(en) / Beteiligte

• Fleischer, Frank
• Degreif, Kai
• Gwinner, Gerald
• Lestinsky, Michael
• Liechtenstein, Vitaly
• Plenge, Florian
• Schwalm, Dirk

Titel

Measurement of the decay rate of the negative ion of positronium (Ps-)

Ist Teil von

• Physical review letters, 2006-02, Vol.96 (6), p.063401-063401, Article 063401

Ort / Verlag

United States

Erscheinungsjahr

2006

Link zum Volltext

Quelle

American Physical Society

Beschreibungen/Notizen

• A new determination of the decay rate of the negative ion of positronium (Ps-), using a beam-foil method and a stripping-based detection technique, is reported. The measured result of gamma = 2.089(15) ns(-1) is a factor of 6 more precise than the previous experimental value of gamma = 2.09(9) ns(-1), and is in excellent agreement with the theoretical value of gamma = 2.086(6) ns(-1).