Exotic hadrons and hadron–hadron interactions in heavy-ion collisions

2013/01/30 by Akira Ohnishi, A. Ohnishi, S. Cho +17 · 1 citation
Physics and Astronomy · #Astronomy #Coalescence (physics) #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Range (aeronautics) #Scattering #nucl-th

paper · pdf · doi:10.1016/j.nuclphysa.2013.01.083

8 pages, 5 figures. Talk presented at the 11th International Conference on Hypernuclear and Strange Particle Physics (HYP2012), Oct.1-5, 2012, Barcelona, Spain

arxiv created 2013/01/30 · openalex publication_date 2013/02/05 · arxiv updated 2015/06/12 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We discuss the exotic hadron structure and hadron-hadron interactions in view of heavy ion collisions. First, we demonstrate that a hadronic molecule with a large spatial size would be produced more abundantly in the coalescence model compared with the statistical model result. Secondly, we constrain the Lambda-Lambda interaction by using the recently measured Lambda-Lambda correlation data. We find that the RHIC-STAR data favor the Lambda-Lambda scattering parameters in the range 1/a₀ <= -0.8 fm^-1 and r_eff >= 3 fm.

Citations

• Dynamical study ofQQ–u¯d¯mesons
• Soft-core hyperon-nucleon potentials
• Observation of a Resonancelike Structure in theπ+−ψ′Mass Distribution in ExclusiveB→Kπ+−ψ′Decays
• Suppression ofp-wave baryons in quark recombination
• Observation of a Narrow Meson State Decaying toDs+π0at a Mass of2.32 GeV/c2
• Electromagnetic mean squared radii of Λ(1405) in chiral dynamics
• Baryon–baryon interactions in the SU6 quark model and their applications to light nuclear systems

Cited by

• ΛΛ<mml:mspace width="0.28em"/><mml:mspace width="0.28em"/><mml:mspace width="0.28em"/><mml:mspace width="1.0pt"/>4H in halo effective field theory