Výsledky vyhledávání - "Christoph Ditsche"

Autor: Christoph Ditsche, Ulf-G. Meißner, J. Ruiz de Elvira, Martin Hoferichter, Bastian Kubis

Publikováno v: Chiral Symmetry in Hadrons and Nuclei.

In this talk, we present a coupled system of integral equations for the πN → πN (s-channel) and ππ → NN (t-channel) lowest partial waves, derived from Roy–Steiner equations for pion–nucleon scattering. After giving a brief overview of thi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4b514fb6af3e50d7fc7fd42b3aa87d42
https://doi.org/10.1142/9789814618229_0034

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Roy-Steiner equations for piN scattering

Autor: J. Ruiz de Elvira, Bastian Kubis, Ulf-G. Meißner, Martin Hoferichter, Christoph Ditsche

Publikováno v: EPJ Web Conf.
Ruiz de Elvira, J.; Ditsche, C.; Hoferichter, Martin; Kubis, B.; Meissner, U.G. (9 June 2014). Roy-Steiner equations for piN scattering. EPJ web of conferences, 73(05002), 05002. EDP Sciences 10.1051/epjconf/20147305002
EPJ Web of Conferences, Vol 73, p 05002 (2014)

In this talk, we present a coupled system of integral equations for the πN → πN (s-channel) and ππ → N̅N (t-channel) lowest partial waves, derived from Roy–Steiner equations for pion–nucleon scattering. After giving a brief overview of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3a2a241ffdbdcfd8f29def8a2610667

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Roy-Steiner equations for pion-nucleon scattering

Autor: Christoph Ditsche, Ulf-G. Meißner, Bastian Kubis, Martin Hoferichter

Publikováno v: Journal of high energy physics 1206(6),-043 (2012). doi:10.1007/JHEP06(2012)043

Starting from hyperbolic dispersion relations, we derive a closed system of Roy-Steiner equations for pion-nucleon scattering that respects analyticity, unitarity, and crossing symmetry. We work out analytically all kernel functions and unitarity rel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36d52f4270943e573b9f0053084d36c8
https://hdl.handle.net/2128/10248

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Dispersive analysis of the scalar form factor of the nucleon

Autor: Ulf-G. Meißner, Bastian Kubis, Martin Hoferichter, Christoph Ditsche

Publikováno v: Journal of high energy physics 1206(6),-063 (2012). doi:10.1007/JHEP06(2012)063

Based on the recently proposed Roy-Steiner equations for pion-nucleon scattering, we derive a system of coupled integral equations for the pi pi --> N-bar N and K-bar K --> N-bar N S-waves. These equations take the form of a two-channel Muskhelishvil

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a74a1a3284cb05de79213e0f3ab2775
https://juser.fz-juelich.de/record/127621

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Rescattering effects in η → 3π decays

Autor: Sebastian P. Schneider, Bastian Kubis, Christoph Ditsche

Publikováno v: Journal of High Energy Physics. 2011

The isospin-breaking decay η → 3π is an ideal tool to extract information on light quark mass ratios from experiment. For a precise determination, however, a detailed description of the Dalitz plot distribution is necessary. In that respect, in p

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e0c24250920c2ff82380ef528ca2c322
https://doi.org/10.1007/jhep02(2011)028

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Electromagnetic effects in $\eta\rightarrow 3 \pi$

Autor: Ulf-G. Meissner, Bastian Kubis, Christoph Ditsche

Publikováno v: Proceedings of 6th International Workshop on Chiral Dynamics — PoS(CD09).

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b32b157043d42c557d579909e433a320
https://doi.org/10.22323/1.086.0043

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Electromagnetic corrections in eta --> 3 pi decays

Autor: Bastian Kubis, Ulf-G. Meißner, Christoph Ditsche

We re-evaluate the electromagnetic corrections to eta --> 3 pi decays at next-to-leading order in the chiral expansion, arguing that effects of order e^2(m_u-m_d) disregarded so far are not negligible compared to other contributions of order e^2 time

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2af82867b5e6ed2cf3d6d98d399ae2dc
http://arxiv.org/abs/0812.0344

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Conference

Chiral dynamics with (non)strange quarks.

Autor: Kubis, Bastian¹ kubis@hiskp.uni-bonn.de, Meißner, Ulf-G.^1,2 meissner@hiskp.uni-bonn.de

Publikováno v: EPJ Web of Conferences. 2017, Vol. 134, p1-15. 15p.

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Akademický článek

Rescattering effects in η → 3π decays.

Autor: Schneider, Sebastian P., Kubis, Bastian, Ditsche, Christoph

Publikováno v: Journal of High Energy Physics; Feb2011, Vol. 2011 Issue 2, p1-26, 26p

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Elektronická kniha

Bewegende Energie : Die Energiewende als Treiber der Großen Transformation im Rück- und Ausblick. Festschrift zum 80. Geburtstag von Peter Hennicke.

Autor: Stefan Lechtenböhmer, Wolfgang Irrek, Hans-Jochen Luhmann, Dieter Seifried, Stefan Thomas

Bewegende Energie – das charakterisiert den beruflichen und akademischen Lebensweg von Peter Hennicke. Seine bis heute andauernde Arbeit zur Energiewende hat vieles in Bewegung gebracht. Er hat den Begriff »Energiewende« zwar nicht erfunden, aber

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