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arXiv · 1002.4277

Pionic Deuterium

Th. Strauch·F. D. Amaro·D. F. Anagnostopoulos·P. B"\uhler·D. S. Covita·H. Gorke·D. Gotta·A. Gruber·A. Hirtl·P. Indelicato·E. -O. Le Bigot·M. Nekipelov·J. M. F. dos Santos·Ph. Schmid·S. Schlesser·L. M. Simons·M. Trassinelli·J. F. C. A. Veloso·J. Zmeskal
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Abstract

The strong interaction shift and broadening in pionic deuterium have been remeasured with high statistics by means of the (3p-1s) X-ray transition using the cyclotron trap and a high-resolution crystal spectrometer. Preliminary results are (-2325+/-31) meV (repulsive) for the shift and (1171+23/-49} meV for the width, which yields precise values for the pion-deuteron scattering length and the threshold parameter for pion production.

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Th. Strauch, F. D. Amaro, D. F. Anagnostopoulos, P. B"\uhler, D. S. Covita, H. Gorke, D. Gotta, A. Gruber, A. Hirtl, P. Indelicato, E. -O. Le Bigot, M. Nekipelov, J. M. F. dos Santos, Ph. Schmid, S. Schlesser, L. M. Simons, M. Trassinelli, J. F. C. A. Veloso, J. Zmeskal. 2010-02-23. Pionic Deuterium. https://doi.org/10.1051/epjconf%2F20100303006

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