Hadron Formation Time and Dilepton Mass Spectra in Heavy Ion Collisions
Peter Filip, Jan Pisut
Abstract
We point out that formation time of pions produced in heavy ion collisions modifies the mass spectrum of dileptons produced via pipi -> ee annihilation. Increasing formation time enhances the production of dileptons with lower masses. The effect offers an explanation of a part of the enhanced production of dileptons below the rho-meson mass as observed by the CERES and HELIOS Collaborations at the CERN SPS.
Create a lesson
Related papers
Impact of ab initio E1 strength on neutron capture rates along the nickel isotopic chain
Francesca Bonaiti, Joanna E. Sobczyk
Final-state centrality in relativistic heavy-ion simulations from neural networks
Anibal Bezerra, Fernando G. Gardim
Constrained coupled-cluster computations yield negative-parity rotational bands
Gaute Hagen, Benjamin Bally, Thomas Papenbrock
Levy-shaped femtoscopic sources from an exact solution of relativistic hydrodynamics
Bence Szentkuti, Mate Csanad
Octupole correlations in the excited 0+ states and two-neutron transfers in actinide nuclei
Kosuke Nomura
Macroscopic study of ϕ-mesic nuclei in pp collisions at s = 7 TeV with the PACIAE model
Qiang Wang, Zhi-Lei She, An-Ke Lei et al.