Elliptic flow from nuclear collisions is a hadronic observable sensitive to the early stages of system evolution. We report first results on elliptic flow of charged particles at midrapidity in Au+Au collisions at sqrt[sNN] = 130 GeV using the STAR Time Projection Chamber at the Relativistic Heavy Ion Collider. The elliptic flow signal, v2, averaged over transverse momentum, reaches values of about 6% for relatively peripheral collisions and decreases for the more central collisions. This can be interpreted as the observation of a higher degree of thermalization than at lower collision energies. Pseudorapidity and transverse momentum dependence of elliptic flow are also presented.
Elliptic flow from nuclear collisions is a hadronic observable sensitive to the early stages of system evolution. We report first results on elliptic flow of charged particles at midrapidity in Au+Au collisions at sqrt(s_NN)=130 GeV using the STAR TPC at RHIC. The elliptic flow signal, v_2, averaged over transverse momentum, reaches values of about 6% for relatively peripheral collisions and decreases for the more central collisions. This can be interpreted as the observation of a higher degree of thermalization than at lower collision energies. Pseudorapidity and transverse momentum dependence of elliptic flow are also presented.
Bei den Erkundungen im Rahmen der floristischen Kartierung im Südzipfel von SachsenAnhalt wurden in den Jahren 2000 und 2001 die Meßtischblätter 4737 (Weißenfels-N), 4738 (Bad Dürrenberg bzw. Lützen), 4837 (Weißenfels-S bzw. Stößen), 4838 (Hohenmölsen), 4937 (Osterfeld) und randlich 4736 (Freyburg), 4836 (Naumburg), 4637 (Merseburg-W) und 4938 (Zeitz) näher untersucht. Neufunde und Wiederbestätigung in einem Gebiet, dessen letzte Lokalflora 1886 (K. STARKE, Botanischer Wegweiser für die Umgebung von Weißenfels) erschien, sollen im folgenden kurz mitgeteilt werden.