Event-by-event transverse momentum fluctuations in nuclear collisions at CERN SPS

• DOI: 10.48550/arxiv.0707.4608
• Publication Date: 2007-01-01
• Authors: K. Grebieszkow; C. Alt; T. Anticic; B. Baatar; D. Barna; J. Bartke; L. Betev; H. Białkowska; C. Blume; B. Boimska; M. Botje; J. Braciník; R. Bramm; P. Bunčić; V. Černý; P. Christakoglou; P. Chung; O. Chvála; J. G. Cramer; P. Csató; P. Dinkelaker; V. Eckardt; D. Flierl; Z. Fodor; P. Foka; V. Friese; J. Gál; M. Gaździcki; V. Genchev; G. Georgopoulos; E. Gładysz; S. Hegyi; C. Höhne; K. Kadija; A. Karev; D. P. Kikoła; M. Kliemant; S. Kniege; V. I. Kolesnikov; E. Kornaś; R. Korus; M. Kowalski; I. Kraus; M. Kreps; Á. László; R. Lacey; M. van Leeuwen; P. Lévai; L. Litov; B. Lungwitz; M. Makariev; A. Malakhov; M. Mateev; G. L. Melkumov; A. Mischke; M. Mitrovski; J. Molnár; Stanisław Mrówczy...; V. Nicolic; G. Pálla; A. D. Panagiotou; D. Panayotov; A. Petridis; W. Peryt; M. Pikna; J. Pluta; D. Prindle; F. Pühlhofer; R. Renfordt; C. Roland; G. Roland; M. Rybczyński; A. Rybicki; A. Sandoval; N. Schmitz; T. Schuster; P. Seyboth; F. Siklér; B. Sitár; E. Skrzypczak; M. Słodkowski; G. Stefanek; R. Stock; C. Strabel; H. Ströbele; T. Susa; I. Szentpétery; J. Sziklai; M. Szuba; P. Szymański; V. Trubnikov; D. Varga; M. Vassiliou; G. I. Veres; G. Vesztergombi; D. Vranić; A. Wetzler; Z. Włodarczyk; A. Wojtaszek; I.-K. Yoo; J. Zimányi
• Keywords: Momentum (technical analysis); Critical point (mathematics)

The latest NA49 results on event-by-event transverse momentum fluctuations are presented for central Pb+Pb interactions over the whole SPS energy range (20A - 158A GeV). Two different methods applied: evaluating $Φ_{p_{T}}$ fluctuation measure and studying two-particle correlations. obtained compared to predictions of UrQMD model. dependence data system size dependence. NA61 (SHINE, NA49-future) strategy searching QCD critical end-point is also discussed.