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Title: The impact of $$K^{+}\Lambda$$ photoproduction on the resonance spectrum

Abstract

The Julich-Bonn coupled-channel framework is extended to $$K^+\Lambda$$ photoproduction. The spectrum of nucleon and $$\Delta$$ resonances is extracted from simultaneous fits to several pion-induced reactions in addition to pion, eta and $$K^+\Lambda$$ photoproduction off the proton. More than 40,000 data points up to a center-of-mass energy of E$$\sim$$2.3 GeV including recently measured double-polarization observables are analyzed. The influence of the $$\gamma p\to K^+\Lambda$$ channel on the extracted resonance parameters and the appearance of states not seen in other channels is investigated. Furthermore, the Julich-Bonn model includes effective three-body channels and guarantees unitarity and analyticity, which is a prerequisite for a reliable determination of the resonance spectrum in terms of poles and residues.

Authors:
 [1];  [2];  [3]
  1. Univ. Bonn, Bonn (Germany)
  2. The George Washington Univ., Washington, D.C. (United States); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. Univ. Bonn, Bonn (Germany); Forschungszentrum Julich, Julich (Germany)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1462176
Report Number(s):
JLAB-THY-18-2640; DOE/OR/23177-4341; arXiv:1801.10458
Journal ID: ISSN 1434-6001; PII: 12541; TRN: US1902109
Grant/Contract Number:  
AC05-06OR23177
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. A
Additional Journal Information:
Journal Volume: 54; Journal Issue: 6; Journal ID: ISSN 1434-6001
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Ronchen, D., Doring, M., and MeiBner, U. -G. The impact of $K^{+}\Lambda$ photoproduction on the resonance spectrum. United States: N. p., 2018. Web. doi:10.1140/epja/i2018-12541-3.
Ronchen, D., Doring, M., & MeiBner, U. -G. The impact of $K^{+}\Lambda$ photoproduction on the resonance spectrum. United States. doi:10.1140/epja/i2018-12541-3.
Ronchen, D., Doring, M., and MeiBner, U. -G. Tue . "The impact of $K^{+}\Lambda$ photoproduction on the resonance spectrum". United States. doi:10.1140/epja/i2018-12541-3. https://www.osti.gov/servlets/purl/1462176.
@article{osti_1462176,
title = {The impact of $K^{+}\Lambda$ photoproduction on the resonance spectrum},
author = {Ronchen, D. and Doring, M. and MeiBner, U. -G.},
abstractNote = {The Julich-Bonn coupled-channel framework is extended to $K^+\Lambda$ photoproduction. The spectrum of nucleon and $\Delta$ resonances is extracted from simultaneous fits to several pion-induced reactions in addition to pion, eta and $K^+\Lambda$ photoproduction off the proton. More than 40,000 data points up to a center-of-mass energy of E$\sim$2.3 GeV including recently measured double-polarization observables are analyzed. The influence of the $\gamma p\to K^+\Lambda$ channel on the extracted resonance parameters and the appearance of states not seen in other channels is investigated. Furthermore, the Julich-Bonn model includes effective three-body channels and guarantees unitarity and analyticity, which is a prerequisite for a reliable determination of the resonance spectrum in terms of poles and residues.},
doi = {10.1140/epja/i2018-12541-3},
journal = {European Physical Journal. A},
number = 6,
volume = 54,
place = {United States},
year = {2018},
month = {6}
}

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    First measurement of the helicity asymmetry E in photoproduction on the proton
    journal, April 2016


    Photon beam asymmetry Σ for η and η′ photoproduction from the proton
    journal, August 2017


    Roy–Steiner-equation analysis of pion–nucleon scattering
    journal, April 2016


    Determining pseudoscalar meson photoproduction amplitudes from complete experiments
    journal, April 2011

    • Sandorfi, A. M.; Hoblit, S.; Kamano, H.
    • Journal of Physics G: Nuclear and Particle Physics, Vol. 38, Issue 5
    • DOI: 10.1088/0954-3899/38/5/053001

    Amplitude extraction in pseudoscalar-meson photoproduction: towards a situation of complete information
    journal, February 2015

    • Nys, Jannes; Vrancx, Tom; Ryckebusch, Jan
    • Journal of Physics G: Nuclear and Particle Physics, Vol. 42, Issue 3
    • DOI: 10.1088/0954-3899/42/3/034016

    Review of Particle Physics
    journal, October 2016


    Measurement of $\gamma p \rightarrow K^ + \Lambda$ and $\gamma p \rightarrow K^ + \Sigma^0$ at photon energies up to 2.6 GeV
    journal, February 2004


    Decays of baryon resonances into ΛK+, ΣK+ and Σ+K0
    journal, September 2005

    • Sarantsev, A. V.; Nikonov, V. A.; Anisovich, A. V.
    • The European Physical Journal A, Vol. 25, Issue 3
    • DOI: 10.1140/epja/i2005-10121-4

    Polarization observable measurements for γp → K+Λ and γp → K+Σfor energies up to 1.5 GeV
    journal, January 2007


    A gauge-invariant chiral unitary framework for kaon photo- and electroproduction on the proton
    journal, November 2007


    Baryon resonances and polarization transfer in hyperon photoproduction
    journal, December 2007


    Effects of a spin-flavour-dependent interaction on the baryon mass spectrum
    journal, December 2011


    Coupled-channel dynamics in the reactions πN → πN, ηN, KΛ, KΣ
    journal, April 2013


    High statistics study of the reaction γp → pπ0 η
    journal, April 2014


    Photocouplings at the pole from pion photoproduction
    journal, June 2014


    Energy-independent PWA of the reaction γp → K+Λ
    journal, August 2014


    Eta photoproduction in a combined analysis of pion- and photon-induced reactions
    journal, June 2015


    High-statistics study of the reaction γp → p2π0
    journal, August 2015


    Eta and kaon production in a chiral quark model
    journal, September 2016


    The impact of new polarization data from Bonn, Mainz and Jefferson Laboratory on $\gamma p \rightarrow \pi N$ multipoles
    journal, September 2016


    Three-body unitarity with isobars revisited
    journal, September 2017


    Three-body unitarity in the finite volume
    journal, December 2017


    N* resonances from K $\Lambda$ Λ amplitudes in sliced bins in energy
    journal, December 2017

    • Anisovich, A. V.; Burkert, V.; Hadžimehmedović, M.
    • The European Physical Journal A, Vol. 53, Issue 12
    • DOI: 10.1140/epja/i2017-12443-x

    JURECA: General-purpose supercomputer at Jülich Supercomputing Centre
    journal, January 2016

    • Krause, Dorian; Thörnig, Philipp
    • Journal of large-scale research facilities JLSRF, Vol. 2
    • DOI: 10.17815/jlsrf-2-121