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Title: N* resonances from K $$\Lambda$$ Λ amplitudes in sliced bins in energy

Abstract

The two reactions $$\gamma p\to K^+\Lambda$$ and $$\pi^-p\to K^0\Lambda$$ are analyzed to determine the leading photoproduction multipoles and the pion-induced partial wave amplitudes in slices of the invariant mass. The multipoles and the partial-wave amplitudes are simultaneously fitted in a multichannel Laurent+Pietarinen model (L+P model), which determines the poles in the complex energy plane on the second Riemann sheet close to the physical axes. The results from the L+P fit are compared with the results of an energy-dependent fit based on the Bonn-Gatchina (BnGa) approach. The study confirms the existence of several poles due to nucleon resonances in the region at about 1.9\,GeV with quantum numbers $J^P = 1/2^+$, $3/2^+, 1/2^-, 3/2^-, 5/2^-$.

Authors:
 [1];  [2];  [3];  [4];  [5];  [1];  [3];  [1];  [3];  [6];  [7]
  1. Univ. of Bonn (Germany); Particle and Nuclear Physics Inst., Gatchina (Russia)
  2. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
  3. Univ. of Tuzla (Bosnia and Herzegovina)
  4. Univ. of Glasgow, Scotland (United Kingdom)
  5. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States); Univ. of Bonn (Germany)
  6. Rudjer Boskovic Inst., Zagreb (Croatia)
  7. Univ. of Bonn (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:
1417972
Report Number(s):
JLAB-PHY-17-2568; DOE/OR-/23177-4329; arXiv:1712.07537
Journal ID: ISSN 1434-6001; PII: 12443; TRN: US1801223
Grant/Contract Number:  
AC05-06OR23177
Resource Type:
Accepted Manuscript
Journal Name:
European Physical Journal. A
Additional Journal Information:
Journal Volume: 53; Journal Issue: 12; Journal ID: ISSN 1434-6001
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Anisovich, A. V., Burkert, V., Hadžimehmedović, M., Ireland, D. G., Klempt, E., Nikonov, V. A., Omerović, R., Sarantsev, A. V., Stahov, J., Švarc, A., and Thoma, U. N* resonances from K $\Lambda$ Λ amplitudes in sliced bins in energy. United States: N. p., 2017. Web. doi:10.1140/epja/i2017-12443-x.
Anisovich, A. V., Burkert, V., Hadžimehmedović, M., Ireland, D. G., Klempt, E., Nikonov, V. A., Omerović, R., Sarantsev, A. V., Stahov, J., Švarc, A., & Thoma, U. N* resonances from K $\Lambda$ Λ amplitudes in sliced bins in energy. United States. doi:10.1140/epja/i2017-12443-x.
Anisovich, A. V., Burkert, V., Hadžimehmedović, M., Ireland, D. G., Klempt, E., Nikonov, V. A., Omerović, R., Sarantsev, A. V., Stahov, J., Švarc, A., and Thoma, U. Fri . "N* resonances from K $\Lambda$ Λ amplitudes in sliced bins in energy". United States. doi:10.1140/epja/i2017-12443-x. https://www.osti.gov/servlets/purl/1417972.
@article{osti_1417972,
title = {N* resonances from K $\Lambda$ Λ amplitudes in sliced bins in energy},
author = {Anisovich, A. V. and Burkert, V. and Hadžimehmedović, M. and Ireland, D. G. and Klempt, E. and Nikonov, V. A. and Omerović, R. and Sarantsev, A. V. and Stahov, J. and Švarc, A. and Thoma, U.},
abstractNote = {The two reactions $\gamma p\to K^+\Lambda$ and $\pi^-p\to K^0\Lambda$ are analyzed to determine the leading photoproduction multipoles and the pion-induced partial wave amplitudes in slices of the invariant mass. The multipoles and the partial-wave amplitudes are simultaneously fitted in a multichannel Laurent+Pietarinen model (L+P model), which determines the poles in the complex energy plane on the second Riemann sheet close to the physical axes. The results from the L+P fit are compared with the results of an energy-dependent fit based on the Bonn-Gatchina (BnGa) approach. The study confirms the existence of several poles due to nucleon resonances in the region at about 1.9\,GeV with quantum numbers $J^P = 1/2^+$, $3/2^+, 1/2^-, 3/2^-, 5/2^-$.},
doi = {10.1140/epja/i2017-12443-x},
journal = {European Physical Journal. A},
number = 12,
volume = 53,
place = {United States},
year = {2017},
month = {12}
}

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Cited by: 6 works
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    Works referencing / citing this record:

    The impact of $K^{+}\Lambda$ K + Λ photoproduction on the resonance spectrum
    journal, June 2018


    The impact of $K^{+}\Lambda$ K + Λ photoproduction on the resonance spectrum
    journal, June 2018