The 12th International Workshop on the Physics of Excited Nucleons

Session

Plenary Session 2

11 Jun 2019, 11:15

Hörsaal

58. Recent results from the CBELSA/TAPS experiment at ELSA

Farah Afzal (University of Bonn)

11/06/2019, 11:15

Baryon spectrum through meson photoproduction

In order to gain a better understanding of the dynamics inside the nucleon and of the non-perturbative regime of QCD, the nucleon excitation spectra and the properties of nucleon resonances are investigated. An essential experimental tool to achieve this goal is the study of different photoproduction reactions. Partial wave analyses are performed in order to obtain information about the...

60. Probing the nucleon and strongly interacting matter at MAMI

Daniel Watts (University of York)

11/06/2019, 11:50

Baryon spectrum through meson photoproduction

The talk will give an overview of the current and planned research program of the A2@MAMI collaboration. Our research program utilises the intense energy-tagged real photon beam provided by the Mainz/Glasgow tagger in conjunction with the Crystal Ball/TAPS calorimeters, ancillary charged particle detector systems and a range of polarised and unpolarised cryogenic target systems. This...

93. Non-strange baryons (CLAS)

Steffen Strauch (University of South Carolina)

11/06/2019, 12:25

Baryon spectrum through meson photoproduction

Baryon spectroscopy is an essential tool in the study of nucleon resonances. The spectrum of broad and overlapping nucleon excitations can be greatly clarified by use of polarization observables. The N* program at Jefferson Lab with the CEBAF Large Acceptance Spectrometer (CLAS) includes experimental studies with linearly- and circularly-polarized tagged-photon beams, longitudinally- and...

106. Different partial-wave analysis tools and recent results of the Jülich-Bonn model

Deborah Rönchen (HISKP Uni Bonn)

12/06/2019, 11:15

Partial wave analyses and baryon resonance parameter extraction

We give an overview of (some of) the different analysis tools and PWA approaches used to extract the spectrum of nucleon and Delta states from experimental data. Differences and similarities, e.g. in the construction of the amplitude or the data base, will be illustrated.
In addition, we show recent results of the Jülich-Bonn model, a unitary dynamical coupled-channel approach, and discuss the...

71. Heavy Flavor Baryon Spectroscopy at LHCb

Sebastian Neubert (Ruprecht Karls Universitaet Heidelberg (DE))

12/06/2019, 11:50

72. Theoretical Review of Pentaquark Structures

Bing-Song Zou (Chinese Academy of Sciences)

12/06/2019, 12:25

32. Exploring time like transitions in pp, π⁻ p heavy ion reactions with HADES

Piotr Salabura (Jagiellonian University)

13/06/2019, 11:15

Baryon resonances in heavy ion collisions and their role in cosmology

Exploring time like transitions in pp and pi--p reactions with HADES

Piotr Salabura for the HADES collaboration

Radiative transition of an excited baryon to a nucleon with emission of a virtual massive photon decaying to electron-positron pair (R->Ne+e- Dalitz decays) provides important insight into baryon-photon vertex at low q2 =(me+e-)^2 in time-like region. A prominent enhancement...

103. New Results in Strangeness Production with Polarization Observables

David Ireland (David)

13/06/2019, 11:50

Baryon spectrum through meson photoproduction

Photoproduction of kaons can be regarded as the "golden channel" in the resonance region because of the opportunity to measure combinations of beam, target and recoil polarization. This talk will look at the impact of the recent results from CLAS and elsewhere, and in particular will describe the possibility of determining the weak decay parameter of the $\Lambda$. This study complements a...

81. Nuclear Femtography with CLAS12

Latifa Elouadrhiri (Jefferson Lab)

13/06/2019, 12:25

70. Overview PWA

Deborah Rönchen (HISKP Uni Bonn)