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Title: | Pionic Deuterium | Authors: | Strauch, Th. Amaro, F. D. Anagnostopoulos, D. F. Bühler, P. Covita, D. S. Gorke, H. Gotta, D. Gruber, A. Hirtl, A. Indelicato, P. Le Bigot, E. -O. Nekipelov, M. Santos, J. M. F. dos Schmid, Ph. Schlesser, S. Simons, L. M. Trassinelli, M. Veloso, J. F. C. A. Zmeskal, J. |
Keywords: | Nuclear Experiment | Issue Date: | 23-Feb-2010 | Publisher: | EDP Sciences | Serial title, monograph or event: | EPJ Web of Conferences | Volume: | 3 | Abstract: | The strong interaction shift ∈1sπD and broadening Γ1sπD in pionic deuterium have been remeasured with high statistics by means of the πD(3p - 1s) X-ray transition using the cyclotron trap and a high-resolution crystal πD πD spectrometer. Preliminary results are ∈1sπD = (-2325 ± 31) meV (repulsive) and Γ1sπD(1171+23-49) meV which yields for the πD scattering length aπD = [-(24.8 ± 0.3) + i (6.3-0.3+0.1)] · 10-3 mπ-1. From the imaginary part the threshold parameter for pion production is determined to be α = (252-11+15) μb. | Description: | Conf. Proc. Few Body 19 (FB19), August 31 - September 5, 2009, Bonn, Germany 9 pages, 13 figures | URI: | https://hdl.handle.net/10316/110183 | ISSN: | 2100-014X | DOI: | 10.1051/epjconf/20100303006 | Rights: | openAccess |
Appears in Collections: | FCTUC Física - Artigos em Revistas Internacionais |
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