N → Nη decays from photoproduction of η-mesons off protons

A. V. Anisovich, V. Burkert, P. M. Collins, Michael Dugger, E. Klempt, V. A. Nikonov, Barry Ritchie, A. V. Sarantsev, U. Thoma

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A study of the partial-wave content of the γp→ηp reaction in the fourth resonance region is presented, which has been prompted by new measurements of polarization observables for that process. Using the Bonn–Gatchina partial-wave formalism, the incorporation of new data indicates that the N(1895)1/2, N(1900)3/2+, N(2100)1/2+, and N(2120)3/2 are the most significant contributors to the photoproduction process. New results for the branching ratios of the decays of these more prominent resonances to Nη final states are provided; such branches have not been indicated in the most recent edition of the Review of Particle Properties. Based on the analysis performed here, predictions for the helicity asymmetry E for the γp→ηp reaction are presented.

Original languageEnglish (US)
Pages (from-to)247-252
Number of pages6
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume772
DOIs
StatePublished - Sep 10 2017

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photoproduction
mesons
protons
decay
asymmetry
formalism
polarization
predictions

Keywords

  • Baryon spectroscopy
  • Meson photoproduction
  • Polarization observables

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

N → Nη decays from photoproduction of η-mesons off protons. / Anisovich, A. V.; Burkert, V.; Collins, P. M.; Dugger, Michael; Klempt, E.; Nikonov, V. A.; Ritchie, Barry; Sarantsev, A. V.; Thoma, U.

In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 772, 10.09.2017, p. 247-252.

Research output: Contribution to journalArticle

Anisovich, A. V. ; Burkert, V. ; Collins, P. M. ; Dugger, Michael ; Klempt, E. ; Nikonov, V. A. ; Ritchie, Barry ; Sarantsev, A. V. ; Thoma, U. / N → Nη decays from photoproduction of η-mesons off protons. In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. 2017 ; Vol. 772. pp. 247-252.
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AU - Collins, P. M.

AU - Dugger, Michael

AU - Klempt, E.

AU - Nikonov, V. A.

AU - Ritchie, Barry

AU - Sarantsev, A. V.

AU - Thoma, U.

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