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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Main Author: Ghosal Debdeep
Format: Article
Language:English
Published: EDP Sciences 2019-01-01
Series:EPJ Web of Conferences
Online Access:https://www.epj-conferences.org/articles/epjconf/pdf/2019/04/epjconf_meson2019_02010.pdf
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spelling 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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