%0 Conference Paper
%A Gotta, D.
%A Amaro, F. D.
%A Anagnostopoulos, D. F.
%A Bühler, P.
%A Gorke, H.
%A Covita, D. S.
%A Fuhrmann, H.
%A Gruber, A.
%A Hennebach, M.
%A Hirtl, A.
%A Ishiwatari, T.
%A Indelicato, P.
%A Jensen, T. S.
%A Bigot, E.-O. Le
%A Markushin, V. E.
%A Marton, J.
%A Nekipelov, M.
%A Pomerantsev, V. N.
%A Popov, V. P.
%A dos Santos, J. M. F.
%A Schlesser, S.
%A Schmid, Ph.
%A Simons, L. M.
%A Strauch, Th.
%A Theisen, M.
%A Trassinelli, M.
%A Veloso, J. F. C. A.
%A Zmeskal, J.
%T Pionic hydrogen and friends
%J Hyperfine interactions
%V 234
%N 1-3
%@ 1572-9540
%C Dordrecht [u.a.]
%I Springer Science + Business Media B.V
%M FZJ-2015-06821
%P 105 - 111
%D 2015
%X Pion-nucleon scattering lengths are directly related to the ground-state level shift and broadening in pionic hydrogen as well as to the pionic deuterium level shift. The level broadening in deuterium measures the strength of pion threshold-production in proton-proton reactions. However, collisional processes during the atomic de-excitation cascade considerably complicate the analysis of X-ray line shapes in order to extract the hadronic broadening. Therefore, additionally the purely electromagnetic twin system muonic hydrogen was studied. Results of these experiments performed at PSI by using a high-resolution crystal spectrometer are discussed in the context with a new analysis approach for the hadronic broadening.
%B International conference on exotic atoms
%C 15 Sep 2014 - 19 Sep 2014, Vienna (Austria)
Y2 15 Sep 2014 - 19 Sep 2014
M2 Vienna, Austria
%F PUB:(DE-HGF)8 ; PUB:(DE-HGF)16
%9 Contribution to a conference proceedingsJournal Article
%U <Go to ISI:>//WOS:000360770800015
%R 10.1007/s10751-015-1157-5
%U https://juser.fz-juelich.de/record/276363