# K+ and K- potentials in hadronic matter are observable quantities

Abstract : The comparison of $K^+$ and $K^-$ spectra at low transverse momentum in light symmetric heavy ion reactions at energies around 2 AGeV allows for a direct experimental determination of the strength of the $K^+$ as well as of t he $K^-$ nucleus potential. Other little known or unknown input quantities like the production or rescattering cross sections of $K^+$ and $K^-$ mesons do not spoil this signal. This result, obtained by simulations of these reactio ns with the Isospin Quantum Molecular Dynamics (IQMD) model, may solve the longstanding question of the behaviour of the $K^-$ in hadronic matter and especially whether a $K^-$ condensate can be formed in heavy ion collisions.
Document type :
Preprints, Working Papers, ...

http://hal.in2p3.fr/in2p3-00593740
Contributor : Dominique Girod Connect in order to contact the contributor
Submitted on : Tuesday, May 17, 2011 - 12:07:11 PM
Last modification on : Wednesday, April 27, 2022 - 3:51:16 AM

### Identifiers

• HAL Id : in2p3-00593740, version 1
• ARXIV : 1105.1730

### Citation

A.D. Sood, Christoph Hartnack, Joerg Aichelin. K+ and K- potentials in hadronic matter are observable quantities. 2011. ⟨in2p3-00593740⟩

Record views