介子氘的激光光谱:对质子谜题的新贡献

2016 Conference on Precision Electromagnetic Measurements (CPEM 2016) Pub Date : 2016-08-11 DOI:10.1109/CPEM.2016.7540776

F. Nez, F. Amaro, A. Antognini, F. Biraben, J. Cardoso, D. Covita, A. Dax, S. Dhawan, M. Diepold, L. Fernandes, A. Giesen, A. L. Gouvea, T. Graf, T. Hansch, P. Indelicato, L. Julien, P. Knowles, F. Kottmann, E. Le Bigot, Y. Wei Liu, J. Lopes, L. Ludhova, C. Monteiro, F. Mulhauser, T. Nebel, P. Rabinowitz, J. D. dos Santos, L. Schaller, K. Schuhmann, C. Schwob, D. Taqqu, J. Veloso, R. Pohl

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引用次数: 5

摘要

我们报道了第一个子氘的激光光谱。在Paul Scherrer研究所，我们测量了介子氘的2S-2P Lamb位移的频率。与介子氢的情况一样，观测到的谱线偏离了理论预测。由于改进了新的QED和核结构计算，可以从我们的研究中提取出氘核半径的准确测定。这一测定将为质子大小之谜提供一个新的重要输入。

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Laser spectroscopy of muonic deuterium: New contribution to the proton puzzle

We report the first laser spectroscopy of muonic deuterium. At the Paul Scherrer Institute, we have measured the frequency of the 2S-2P Lamb shift in muonic deuterium. As in the case of the muonic hydrogen, the observed lines are shifted from the theoretical predictions. Thanks to improved new QED and nuclear structure calculations, an accurate determination of the deuteron radius can be extracted from our study. This determination will give a new and important input to the proton size puzzle.

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2016 Conference on Precision Electromagnetic Measurements (CPEM 2016)

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