Title
Determination of the strong interaction ground state width in pionic hydrogen / Albert Hirtl
AuthorHirtl, Albert
Censor Gotta, Detlev
Published2008
DescriptionXII, 92 S. : Ill., graph. Darst.
Institutional NoteWien, Techn. Univ., Diss., 2008
Annotation
Zsfassung in dt. Sprache
LanguageEnglish
Bibl. ReferenceOeBB
Document typeDissertation (PhD)
 Abstract (German) Am Paul Scherrer Institut (PSI) wurden die hadronische Verschiebung ($\epsilon_ Der Pionen-Strahl wurde mittels einer Zyklotronfalle in ein kryo\-genisches Wasser\-stoffgas-Target gef\"uhrt. Die von den gebildeten pionischen Wasser\-stoff-Atomen ausgesendeten R\"ontgen\-strahlen wurden an dem hochaufl\"osenden Kristallspektrometer reflektiert und schlie Abstract (English) In a new high-precision experiment at the Paul Scherrer Institute (PSI), the hadronic shift ($\epsilon_ hydrogen ($\pi^-$p) atoms are formed. X-rays emitted from the $\pi^-$p atoms were reflected at the high-resolution crystal spectrometer onto a large area position-sensitive detector.\\ The instrumental response function was measured using narrow X-ray transitions from highly ionised atoms produced in an electron cyclotron resonance ion trap.\\ % The kinetic energy distribution of pionic atoms was approximated by a model using box-like distributions. This approach was verified in a measurement of the $3p o1s$ X-ray transition in muonic hydrogen ($\mu^-$p). Unlike pions, muons do not experience the strong interaction and thus, the line-shape of the emitted X-rays is very sensitive to Doppler-broadening.\\ % Together with the measured instrumental response function, this model for the kinetic energy distribution was used in an analysis method to extract \$\Gamma_