Measurement of π0π+/− photoproduction off the deuteron and dbutanol targets
Recent experiments using the Crystal Ball/TAPS setup at the MAMI accelerator in Mainz, Germany continue to study the properties and the excitation spectrum of the nucleon with meson photoproduction. Electromagnetic excitations of the proton and neutron are essential for understanding their isospin d...
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2019-01-01
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Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2019/04/epjconf_meson2019_02010.pdf |
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doaj-4a637dc4292043d6bfb205451ee096a92021-08-02T04:05:39ZengEDP SciencesEPJ Web of Conferences2100-014X2019-01-011990201010.1051/epjconf/201919902010epjconf_meson2019_02010Measurement of π0π+/− photoproduction off the deuteron and dbutanol targetsGhosal Debdeep0University of BaselRecent experiments using the Crystal Ball/TAPS setup at the MAMI accelerator in Mainz, Germany continue to study the properties and the excitation spectrum of the nucleon with meson photoproduction. Electromagnetic excitations of the proton and neutron are essential for understanding their isospin decomposition. The electromagnetic coupling of photons to protons is different than that of neutrons in certain states. Cross-section data alone is not sufficient for separating resonances, whereas polarization observables play a crucial role being essential in disentangling the contributing resonant and non-resonant amplitudes. Preliminary results of the polarization observable E of double π production off an unpolarized (LD2) and polarized (dButanol) target are shown with comparison to predictions of recent analyses.https://www.epj-conferences.org/articles/epjconf/pdf/2019/04/epjconf_meson2019_02010.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ghosal Debdeep |
spellingShingle |
Ghosal Debdeep Measurement of π0π+/− photoproduction off the deuteron and dbutanol targets EPJ Web of Conferences |
author_facet |
Ghosal Debdeep |
author_sort |
Ghosal Debdeep |
title |
Measurement of π0π+/− photoproduction off the deuteron and dbutanol targets |
title_short |
Measurement of π0π+/− photoproduction off the deuteron and dbutanol targets |
title_full |
Measurement of π0π+/− photoproduction off the deuteron and dbutanol targets |
title_fullStr |
Measurement of π0π+/− photoproduction off the deuteron and dbutanol targets |
title_full_unstemmed |
Measurement of π0π+/− photoproduction off the deuteron and dbutanol targets |
title_sort |
measurement of π0π+/− photoproduction off the deuteron and dbutanol targets |
publisher |
EDP Sciences |
series |
EPJ Web of Conferences |
issn |
2100-014X |
publishDate |
2019-01-01 |
description |
Recent experiments using the Crystal Ball/TAPS setup at the MAMI accelerator in Mainz, Germany continue to study the properties and the excitation spectrum of the nucleon with meson photoproduction. Electromagnetic excitations of the proton and neutron are essential for understanding their isospin decomposition. The electromagnetic coupling of photons to protons is different than that of neutrons in certain states. Cross-section data alone is not sufficient for separating resonances, whereas polarization observables play a crucial role being essential in disentangling the contributing resonant and non-resonant amplitudes. Preliminary results of the polarization observable E of double π production off an unpolarized (LD2) and polarized (dButanol) target are shown with comparison to predictions of recent analyses. |
url |
https://www.epj-conferences.org/articles/epjconf/pdf/2019/04/epjconf_meson2019_02010.pdf |
work_keys_str_mv |
AT ghosaldebdeep measurementofp0pphotoproductionoffthedeuteronanddbutanoltargets |
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1721242699358535680 |