Photoproduction of the Λ(1800)

BAYAR M., Song J., Dai L., Oset E.

European Physical Journal C, cilt.85, sa.3, 2025 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 85 Sayı: 3
  • Basım Tarihi: 2025
  • Doi Numarası: 10.1140/epjc/s10052-025-13961-0
  • Dergi Adı: European Physical Journal C
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, Communication Abstracts, INSPEC, zbMATH, Directory of Open Access Journals, Nature Index
  • Kocaeli Üniversitesi Adresli: Evet

Özet

We have carried out a study of the γp→pK+K∗-(K∗-→K-π0), γp→pK+K∗-(K∗-→K¯0π-) and γp→K+K-p reactions, producing the K+Λ(1800) final state, from the perspective that the Λ(1800) resonance is dynamically generated from the interaction of K¯∗N with its coupled vector-baryon channels, in complete analogy to the Λ(1405) generated from the interaction of K¯N and its coupled pseudoscalar-baryon channels. The two reactions are complementary and their mass distributions are tied to the particular nature of this resonance in that framework. We provide much information on the shapes and strength of the invariant mass distributions of these reactions, and the energy dependence of the cross sections, that when contrasted with future experiments should shed valuable light on the nature of this resonance and its analogy to the Λ(1405).