TY - JOUR
T1 - Determination of antiproton mass from the calculation of energy levels of antiprotonic helium atoms
AU - Kino, Y.
AU - Kamimura, M.
AU - Kudo, H.
N1 - Funding Information:
We are indebted to Prof. T. YAMAZAKI, Prof. R. S. HAYANO, Dr. T. ISHIKAWA, Dr. H. A. TORII and Dr. M. HORI for communicating experimental results prior to publication. We are grateful to Prof. V. I. KOROBOV, Dr. N. YAMANAKA, Prof. P. FROELICH and Prof. D. BAKALOV for helpful discussion. Y. K. wishes to acknowledge the financial support of Inoue Foundation for Science, and by the Grant-in-Aid for Science from Ministry of Education, Science and Culture. The computation was carried out on the FACOM/VPP700E at RIKEN and FACOM/VPP5000 at JAERI.
PY - 2003/1/1
Y1 - 2003/1/1
N2 - We calculate the energy levels of the metastable states of an antiprotonic helium atom. The coupled rearrangement channel method is employed to describe a dual character of the atom effectively. Calculated transition frequencies between the metastable states are in good agreement with the observed values. The uncertainty of an antiproton mass is estimated by the calculated transition frequencies with the slightly shifted antiproton mass from the proton mass. When a more accurate value of the charge-to-mass ratio of antiproton is considered, the uncertainty of antiproton mass and charge is estimated at 54 ppb which improves the value recommended by the particle data by a factor of ten.
AB - We calculate the energy levels of the metastable states of an antiprotonic helium atom. The coupled rearrangement channel method is employed to describe a dual character of the atom effectively. Calculated transition frequencies between the metastable states are in good agreement with the observed values. The uncertainty of an antiproton mass is estimated by the calculated transition frequencies with the slightly shifted antiproton mass from the proton mass. When a more accurate value of the charge-to-mass ratio of antiproton is considered, the uncertainty of antiproton mass and charge is estimated at 54 ppb which improves the value recommended by the particle data by a factor of ten.
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U2 - 10.1023/A:1022264722375
DO - 10.1023/A:1022264722375
M3 - Article
AN - SCOPUS:0037283183
VL - 255
SP - 179
EP - 182
JO - Journal of Radioanalytical and Nuclear Chemistry
JF - Journal of Radioanalytical and Nuclear Chemistry
SN - 0022-4081
IS - 1
ER -
