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：

暂无

中图分类号：

学科分类号：

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.

引用

页码：261 / 266

页数：5

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