2020/02/29 by June-Young Kim, Hyun-Chul Kim · 10 citations
Physics and Astronomy · #Baryon #Black Holes and Theoretical Physics #Electromagnetic mass #High-Energy Particle Collisions Research #Hyperon #Lattice (music) #Octet #Pion #Quantum Chromodynamics and Particle Interactions #Transition radiation #hep-ex #hep-lat #hep-ph #nucl-ex
paper · pdf · doi:10.1140/epjc/s10052-020-08657-6
published in The European Physical Journal C 80(11) (Springer Science+Business Media) · 25 pages and 11 figures. The text has been reorganized
openalex created_date 2020/02/24 · arxiv created 2020/10/23 · openalex publication_date 2020/11/01 · arxiv updated 2020/12/30 · openalex updated_date 2026/08/05
Abstract We investigate the electromagnetic transition form factors of the baryon decuplet to the baryon octet, based on the self-consistent SU(3) chiral quark-soliton model, taking into account the effects of explicit breaking of flavor SU(3) symmetry. We emphasize the Q2 <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mi>Q</mml:mi> <mml:mn>2</mml:mn> </mml:msup> </mml:math> dependence of the electromagnetic N→ Δ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>N</mml:mi> <mml:mo>→</mml:mo> <mml:mi>Δ</mml:mi> </mml:mrow> </mml:math> transition form factors and the ratios of E 2/ M 1 and C 2/ M 1 in comparison with the experimental and empirical data. In order to compare the present results of the electromagnetic transition form factors of the N→ Δ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>N</mml:mi> <mml:mo>→</mml:mo> <mml:mi>Δ</mml:mi> </mml:mrow> </mml:math> with those from lattice QCD, we evaluate the form factors with the pion mass deviated from its physical value. The results of the E 2/ M 1 and C 2/ M 1 ratios are in good agreement with the lattice data. We also present the results of the electromagnetic transition form factors for the decuplet to the octet transitions.