Journal Article

FZJ-2021-04425

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The ${\vec{\Lambda (1405)}}$ in resummed chiral effective field theory

Ren, X.-L. (Corresponding author) ; Epelbaum, E.FZJ* ; Gegelia, J. ; Meißner, U.-G.FZJ*

2021
Springer Heidelberg

This record in other databases:    

Please use a persistent id in citations: http://hdl.handle.net/2128/29096  doi:10.1140/epjc/s10052-021-09386-0

Abstract: We study the unitarized meson–baryon scattering amplitude at leading order in the strangeness S=−1 sector using time-ordered perturbation theory for a manifestly Lorentz-invariant formulation of chiral effective field theory. By solving the coupled-channel integral equations with the full off-shell dependence of the effective potential and applying subtractive renormalization, we analyze the renormalized scattering amplitudes and obtain the two-pole structure of the Λ(1405) resonance. We also point out the necessity of including higher-order terms.

---

Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. Theorie der starken Wechselwirkung (IKP-3)

Research Program(s):

1. 5111 - Domain-Specific Simulation Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)
2. DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076) (196253076)

Appears in the scientific report 2021

---

Database coverage:
; ; ; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DOAJ Seal ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; Nationallizenz ; SCOAP3 sponsored Journal ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

---