Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Wunderlich Yannick"'
Publikováno v:
EPJ Web of Conferences, Vol 303, p 01016 (2024)
This work combines experimental data from baryon spectroscopy with the latest statistical analysis-methods. The results are model-independent estimates of electromagnetic multipole parameters from which model-independent predictions of yet unmeasured
Externí odkaz:
https://doaj.org/article/4151d3a9c8bc459fa792854640988501
Autor:
Hurck, Peter, Glazier, Derek I., Ireland, David G., Livingston, Ken, Afzal, Farah, Thiel, Annika, Wunderlich, Yannick, Crede, Volker, Dalton, Mark M.
We propose to measure the weak decay constant $\alpha_-$ for the decay $\Lambda\rightarrow p\pi^-$ using a both circularly and linearly polarized photon beam with the GlueX spectrometer in Hall D. The measurement will take advantage of the fact that
Externí odkaz:
http://arxiv.org/abs/2405.01288
Publikováno v:
Phys. Rev. C 109, 045206 (2024)
A truncated partial-wave analysis is performed for $\eta$-photoproduction using the polarization observables $\sigma_0, \Sigma, T, E, F$ and $G$. Different truncation orders are analyzed for six energy bins within the range of $E^{lab}_{\gamma} \in [
Externí odkaz:
http://arxiv.org/abs/2305.10367
Autor:
Wunderlich Yannick
Publikováno v:
EPJ Web of Conferences, Vol 241, p 03006 (2020)
Important insights into the excitation spectra of baryons are provided by measurements of polarization observables in reactions that involve particles with spin. The photoproduction of a single pseudoscalar meson constitutes an example-reaction that
Externí odkaz:
https://doaj.org/article/3c006588fea746538c351b8b20972fa6
This review treats the advances in Light Baryon Spectroscopy of the last two decades, which were mainly obtained by measuring meson-production reactions at photon facilities all over the world. We provide a consistent compendium of experimental resul
Externí odkaz:
http://arxiv.org/abs/2202.05055
Autor:
Wunderlich, Yannick
Publikováno v:
Bled Workshops Phys. 16, no. 1, 68 (2015)
The problem of extracting photoproduction amplitudes uniquely from so called complete experiments is discussed. This problem can be considered either for the extraction of full production amplitudes, or for the determination of multipoles. Both cases
Externí odkaz:
http://arxiv.org/abs/2009.11613
Autor:
Wunderlich, Yannick
Publikováno v:
Bled Workshops Phys. 18, no.1, 57-67 (2017)
The observables in a single-channel $2$-body scattering problem remain invariant once the amplitude is multiplied by an overall energy- and angle-dependent phase. This invariance is known as the continuum ambiguity. Also, mostly in truncated partial
Externí odkaz:
http://arxiv.org/abs/2009.11625
Publikováno v:
Phys. Rev. C 103, 014607 (2021)
For photoproduction reactions with final states consisting of two pseudoscalar mesons and a spin-1/2 baryon, 8 complex amplitudes need to be determined uniquely. A modified version of Moravcsik's theorem is employed for these reactions, resulting in
Externí odkaz:
http://arxiv.org/abs/2009.04356
Autor:
Wunderlich, Yannick
This dissertation treats the problem of complete experiments for pseudoscalar meson photoproduction, in the context of a truncated partial-wave analysis (TPWA). The work contains algebraic and numerical considerations. The influence of measurement un
Externí odkaz:
http://arxiv.org/abs/2008.00514
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