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作者:R.A. Barton , L. Betev ...
来源:[J].Nuclear Physics, Section A(IF 1.525), 1999, Vol.661 (1), pp.45-54
摘要:Abstract(#br)With its large acceptance and particle identification coverage the NA49 experiment (Fig. 1) can study hadron production in a wide range of high energy reactions [1]. Originally aimed at examining central Pb+Pb collisions for signatures of quark-gluon plasma formation...
作者:R.A. Barton , H. Białkowska ...
来源:[J].Nuclear Physics, Section A(IF 1.525), 1998, Vol.638 (1), pp.431c-434c
摘要:Abstract(#br)Data on φ -production obtained by the CERN NA49 experiment for central Pb+Pb collisions at 158 GeV/u are presented. Compared with pp interactions the φ -yield shows substantial strangeness enhancement: the φ /π ratio is found to increase by a factor of 2.6 ...
作者:R.A. Barton , L. Betev ...
来源:[J].Nuclear Inst. and Methods in Physics Research, A(IF 1.142), 1999, Vol.430 (2), pp.210-244
摘要:Abstract(#br)The NA49 detector is a wide acceptance spectrometer for the study of hadron production in p+p, p+A, and A+A collisions at the CERN SPS. The main components are 4 large-volume TPCs for tracking and particle identification via d E /d x . TOF scintillator arrays complem...
作者:R.A. Barton , L. Betev ...
来源:[J].Physics Letters B(IF 4.569), 2000, Vol.491 (1), pp.59-66
摘要:Abstract(#br)Yields and phase space distributions of φ -mesons emitted from p+p (minimum bias trigger), p+Pb (at various centralities) and central Pb+Pb collisions are reported ( E beam =158 A GeV). The decay φ →K + K − was used for identification. The φ / π ratio is f...

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