TY - JOUR A1 - Li, Qingfeng A1 - Bleicher, Marcus A1 - Stöcker, Horst T1 - The effect of "pre-formed" hadron potentials on the dynamics of heavy ion collisions and the HBT puzzle T2 - Physics Letters B N2 - The nuclear stopping, the elliptic flow, and the HBT interferometry are calculated by the UrQMD transport model, in which potentials for “pre-formed” particles (string fragments) from color fluxtube fragmentation as well as for confined particles are considered. This description provides stronger pressure at the early stage and describes these observables better than the default cascade mode (where the “pre-formed” particles from string fragmentation are treated to be free-streaming). It should be stressed that the inclusion of potential interactions pushes down the calculated HBT radius RO and pulls up the RS so that the HBT time-related puzzle disappears throughout the energies from AGS, SPS, to RHIC. KW - HBT interferometry KW - Hadron potentials KW - HBT puzzle KW - Heavy ion collisions Y1 - 2007 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/76343 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-763437 SN - 0370-2693 VL - 659 IS - 3 SP - 525 EP - 530 PB - Elsevier CY - Amsterdam [u.a.] ER -