Quenching of metastable antiprotonic helium atoms in collisions with deuterium molecules

被引：0
|
作者：
B. Juhász
J. Eades
R.S. Hayano
M. Hori
D. Horváth
T. Ishikawa
J. Sakaguchi
H.A. Torii
E. Widmann
H. Yamaguchi
T. Yamazaki
机构：
[1] Institute of Nuclear Research of the Hungarian Academy of Sciences,
[2] 4001 Debrecen,undefined
[3] Hungary,undefined
[4] CERN,undefined
[5] 1211 Geneva 23,undefined
[6] Switzerland,undefined
[7] Department of Physics,undefined
[8] University of Tokyo,undefined
[9] 7-3-1 Hongo,undefined
[10] Bunkyo-ku,undefined
[11] Tokyo 113,undefined
[12] Japan,undefined
[13] KFKI Research Institute for Particle and Nuclear Physics,undefined
[14] 1525 Budapest,undefined
[15] Hungary,undefined
[16] Institute of Physics,undefined
[17] University of Tokyo,undefined
[18] 3-8-1 Komaba,undefined
[19] Meguro-ku,undefined
[20] Tokyo 153,undefined
[21] Japan,undefined
[22] RI Beam Science Laboratory,undefined
[23] RIKEN,undefined
[24] Wako,undefined
[25] Saitama 351-0198,undefined
[26] Japan,undefined
来源：
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics | 2002年 / 18卷
关键词：
PACS. 36.10.-k Exotic atoms and molecules (containing mesons, muons, and other unusual particles) – 42.62.Fi Laser spectroscopy – 34.20.Gj Intermolecular and atom-molecule potentials and forces;
D O I：
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摘要：
Quenching of metastable antiprotonic helium atoms in collisions with deuterium molecules has been studied using laser spectroscopy at CERN's new Antiproton Decelerator facility. The quenching cross-sections of the states (n, l )= (39, 36), (39, 37), and (39, 38) were determined from the decay rates of the states which were observed using the “deuterium-assisted inverse resonance” (DAIR) method. The results revealed a similar (n, l )-dependence of the quenching cross-sections as in the case of hydrogen but the values were smaller by a factor of ∼1.5.
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页码：261 / 266
页数：5
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