<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Amplitude Analysis of the Decay B0s→ψ(2S)π+π- with the LHCb Experiment"^^ . "This thesis presents the first analysis of the hadronic amplitudes in the decay B0s → ψ(2S)π+π− . The pions originate from the ss quark system of the weak B0s decay, which removes contributions from Isospin 1 resonances. This allows to test a novel dispersive approach for a process-independent description of the dipion isoscalar S-wave. Additionally, the tetraquark candidate Z(4430)− is known to contribute to ψ(2S)π− in B0→ ψ(2S)K+π− . An observation of this state in the ψ(2S)π± systems in B0s→ψ(2S) π+π− would give insights into its production mechanism and internal structure. The search for this state among the intermediate hadronic states of the B0s→ ψ(2S)π+π− decay is thus also part of the thesis. Using proton-proton collision data collected by the LHCb experiment in the years 2011, 2012, 2015-2018 at 7, 8, and 13 TeV corresponding to integrated luminosities of 1, 2, and 5 fb^-1 , the fit fractions of S-wave and the individual f_2 states are determined and the process-independence of the S-wave parametrisation is shown. Furthermore, a search for the exotic tetraquark candidate Z(4430)± in B0s → Z(4430)±π∓ with Z(4430)± →ψ(2S)π± is performed. No significant exotic contribution is measured and an upper limit on the fraction of decays proceeding via Z(4430)± is found to be F (Z) < 1.0 % at 95 % confidence level."^^ . "2022" . . . . . . . "Jascha"^^ . "Grabowski"^^ . "Jascha Grabowski"^^ . . . . . . "Amplitude Analysis of the Decay B0s→ψ(2S)π+π- with the LHCb Experiment (PDF)"^^ . . . "Jascha_Grabowski_thesis.pdf"^^ . . . "Amplitude Analysis of the Decay B0s→ψ(2S)π+π- with the LHCb Experiment (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Amplitude Analysis of the Decay B0s→ψ(2S)π+π- with the LHCb Experiment (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Amplitude Analysis of the Decay B0s→ψ(2S)π+π- with the LHCb Experiment (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Amplitude Analysis of the Decay B0s→ψ(2S)π+π- with the LHCb Experiment (Other)"^^ . . . . . . "small.jpg"^^ . . . "Amplitude Analysis of the Decay B0s→ψ(2S)π+π- with the LHCb Experiment (Other)"^^ . . . . . . "indexcodes.txt"^^ . . "HTML Summary of #31115 \n\nAmplitude Analysis of the Decay B0s→ψ(2S)π+π- with the LHCb Experiment\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .