Meson $m_T$-scaling in heavy-ion collisions at SIS energies

Abstract

We perform systematical studies on transverse-mass spectra of ${\pi }^0$, $\eta$, $\omega$, $\varphi$, $K^{+}$ and $K^{-}$ mesons for C + C, Ni + Ni, Au + Au collisions at SIS energies within the HSD transport approach. We find that the $m_T$-spectra sensitively reflect the in-medium properties of the mesons. The 'bare mass' scenario leads to a general scaling behaviour for the meson $m_T$-spectra when including a mass shift due to the associate strangeness production threshold for kaons and antikaons whereas a 'dropping' mass scheme violates this $m_T$-scaling. The relative slope parameters, however, provide valuable information about the average meson potentials in the nuclear medium.

15 pages, LaTeX, including 4 postscript figures, UGI-97-29, submitted to Phys. Lett. B

References in corpus (8)

• Current correlation functions, QCD sum rules and vector mesons in baryonic matter
• Rho Meson Propagation and Dilepton Enhancement in Hot Hadronic Matter
• Kaons in dense matter, kaon production in heavy-ion collisions, and kaon condensation in neutron stars
• P-Wave Polarization of the $\rho$-Meson and the Dilepton Spectrum in Dense Matter
• Analysis of Kaon Production at SIS Energies
• Phi Meson Production in Heavy-Ion Collisions at SIS Energies
• Probing the Rho Spectral Function in Hot and Dense Nuclear Matter by Dileptons
• Charged pions from Ni on Ni collisions between 1 and 2 AGeV

Cited by in corpus (22)

• Kaon production in heavy ion reactions at intermediate energies
• Medium Effects in Kaon and Antikaon Production in Nuclear Collisions at Subthreshold Beam Energies
• Dielectron production in 12C+12C collisions at 2 AGeV with HADES
• Dilepton production and off-shell transport dynamics at SIS energies
• Excitation functions of hadronic observables from SIS to RHIC energies
• Study of dielectron production in C+C collisions at 1 AGeV
• First Measurement of Antikaon Phase-Space Distributions in Nucleus-Nucleus Collisions at Subthreshold Beam Energies
• Open charm production in relativistic nucleus-nucleus collisions
• Antikaon Production in Proton-Nucleus Reactions and the $K^{-}$ properties in nuclear matter
• First evidence for different freeze-out conditions for kaons and antikaons observed in heavy-ion collisions
• Aspects of thermal and chemical equilibration of hadronic matter
• Low-mass dileptons and dropping rho meson mass
• Covariant kaon dynamics and kaon flow in heavy ion collisions
• Dilepton Radiation from Strongly Interacting Systems
• $K^{-}/K^{+}$ ratio in heavy-ion collisions at GSI with an antikaon self-energy in hot and dense matter
• Inclusive pion and eta production in p+Nb collisions at 3.5 GeV beam energy
• Role of phi decays for K- yields in relativistic heavy-ion collisions
• The nuclear equation of state probed by $K^{+}$ production in heavy ion collisions
• Dilepton production in pp and CC collisions with HADES
• Parton-hadron dynamics in heavy-ion collisions
• Can Transverse Mass Scaling Shed Light on the Event-Activity Dependence of ${\rm Y}$ Mesons Production at LHC?
• The QGP phase in relativistic heavy-ion collisions