THE <i>pd</i> → η<SUP>3</SUP> He REACTION AND η<SUP>3</SUP> He BOUND STATE? THE <i>B</i>*(<i>B</i>)over-bar*ρ SYSTEM
ACTA PHYSICA POLONICA B, cilt.48, sa.10, ss.1793-1799, 2017 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 48 Sayı: 10
- Basım Tarihi: 2017
- Doi Numarası: 10.5506/aphyspolb.48.1793
- Dergi Adı: ACTA PHYSICA POLONICA B
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.1793-1799
- İstanbul Üniversitesi Adresli: Hayır
Özet
We analyze the data on cross sections and asymmetries for the pd(dp) -> eta(3) He reaction close to threshold and look for bound states of the eta(3) He system. Fitting these data in terms of an eta(3) He optical potential, we find a local Breit-Wigner form of the eta(3) He amplitude T below threshold with a clear peak in vertical bar T vertical bar(2), which corresponds to an eta(3) He binding of about 0.3 MeV and a width of about 3 MeV. However, this corresponds to a pole in the complex plane above threshold. We also discuss a state found for B (B) over bar*rho with J = 3.