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The New Determination of the eta N S-wave Scattering Length From a Three-Channel, Multi-Resonance Amplitude Analysis


Batinić, Mijo; Dadić, Ivan; Šlaus, Ivo; Švarc, Alfred; Nefkens, B.M.K.; Lee, T.S.H
The New Determination of the eta N S-wave Scattering Length From a Three-Channel, Multi-Resonance Amplitude Analysis // Physica scripta, 58 (1998), 15-18 doi:10.1088/0031-8949/58/1/002 (međunarodna recenzija, članak, znanstveni)


Naslov
The New Determination of the eta N S-wave Scattering Length From a Three-Channel, Multi-Resonance Amplitude Analysis

Autori
Batinić, Mijo ; Dadić, Ivan ; Šlaus, Ivo ; Švarc, Alfred ; Nefkens, B.M.K. ; Lee, T.S.H

Izvornik
Physica scripta (0031-8949) 58 (1998); 15-18

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Eta N S-wave scattering length; multi-resonance amplitude analysis

Sažetak
A three-channel, multi-resonance, unitary model developed in 1995 is used to determine the pi N -->eta N and eta N --> eta N amplitudes by re-analyzing the available data on pi N elastic scattering and the weighted data for the pi N --> eta N total and differential cross sections. The input pi N elastic scattering amplitude in the S11 channel has been improved, following suggestions of G. Hoehler. Our new result of eta N scattering length, a(eta N)=(0.717+-0.030) + i (0.263 +-0.025) fm, suggests that the eta d system is unbound or loosely bound.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekt / tema
00980102
00980202

Ustanove
Institut "Ruđer Bošković", Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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