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1.
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Three-Dimensional two-pion source image from Pb+Pb Collisions at $\sqrt s_{NN}=17.3$ GeV : New constraints for source breakup dynamics / NA49 Collaboration
Source imaging methodology is used to provide a three-dimensional two-pion source function for mid-rapidity pion pairs with $p_T<70$ MeV/c in central ($0-7%$) Pb+Pb collisions at $\sqrt s_{NN}$=17.3 GeV. Prominent non-Gaussian tails are observed in the pion pair transverse momentum (outward) and in the beam (longitudinal) directions. [...]
arXiv:0809.1445.- 2010 - 6 p. - Published in : Phys. Lett. B 685 (2010) 41-46 Fulltext: PDF; External link: Preprint
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2.
(91)
Energy dependence of fluctuations in central Pb+Pb collisions from NA49 at the CERN SPS / NA49 Collaboration
The latest NA49 results on fluctuations of multiplicity and average transverse-momentum analyzed on an event-by-event basis are presented for central Pb+Pb interactions over the whole SPS energy range (20A - 158A GeV). The scaled variance of the multiplicity distribution decreases with collision energy whereas the $\Phi_{p_{T}}$ measure of $$ fluctuations is small and independent of collision energy. [...]
arXiv:0805.2245.- 2012 - 5 p. - Published in : J.Phys.G 35 (2008) 104091 Fulltext: PDF; External link: Preprint
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3.
(87)
Bose-Einstein correlations of $\pi^{-}\pi^{-}$ pairs in central Pb+Pb collisions at 20A,30A,40A,80A, and 158A GeV / NA49 Collaboration
Measurements of Bose--Einstein correlations of pion pairs in central Pb+Pb collisions were performed with the NA49 detector at the CERN SPS for beam energies of 20A, 30A, 40A, 80A, and 158A GeV. Correlation functions were measured in the longitudinally co-moving "out-side-long" refere nce frame as a function of rapidity and transverse momentum in the forward hemisphere of the reaction. [...]
arXiv:0709.4507.- 2008 - 22 p. - Published in : Phys. Rev. C 77 (2008) 064908 APS Published version, local copy: PDF; Fulltext: PDF; External link: Fulltext
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4.
(82)
Search for the QCD critical point in nuclear collisions at the CERN SPS / NA49 Collaboration
Pion production in nuclear collisions at the SPS is investigated with the aim to search, in a restricted domain of the phase diagram, for power-laws in the behaviour of correlations which are compatible with critical QCD. We have analysed interactions of nuclei of different size (p+p, C+C, Si+Si, Pb+Pb) at 158A GeV adopting, as appropriate observables, scaled factorial moments in a search for intermittent fluctuations in transverse dimensions. [...]
arXiv:0912.4198.- 2010 - 31 p. - Published in : Phys. Rev. C 81 (2010) 064907 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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5.
(79)
Pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV: Evidence for the onset of deconfinement / NA49 Collaboration
Results on charged pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV are presented and compared to data at lower and higher energies. A rapid change of the energy dependence is observed around 30A GeV for the yields of pions and kaons as well as for the shape of the transverse mass spectra. [...]
arXiv:0710.0118.- 2008 - 12 p. - Published in : Phys. Rev. C 77 (2008) 024903 APS Published version, local copy: PDF; Fulltext: PDF; External link: DURHAM
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6.
(78)
Indications for the onset of deconfinement in nucleus nucleus collisions / NA49 collaboration
The hadronic final state of central Pb+Pb collisions at 20, 30, 40, 80, and 158 AGeV has been measured by the CERN NA49 collaboration. The mean transverse mass of pions and kaons at midrapidity stays nearly constant in this energy range, whereas at lower energies, at the AGS, a steep increase with beam energy was measured. [...]
nucl-ex/0412018; IKF-2004-02; IKF-2004-02.- Frankfurt am Main : Frankfurt am Main Univ. Inst. Theor. Phys., 2005-04-22 - 4 p. - Published in : AIP Conf. Proc. 756 (2005) 433-435 Access to fulltext document: PDF; Fulltext: PDF;
In : 6th Conference on Quark Confinement and the Hadron Spectrum, Villasimius, Italy, 21 - 25 Sep 2004, pp.433-435
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7.
(78)
Azimuthal dependence of pion source radii in Pb + Au collisions at 158 A GeV / CERES Collaboration
We present results of a two-pion correlation analysis performed with the Au+Pb collision data collected by the upgraded CERES experiment in the fall of 2000. The analysis was done in bins of the reaction centrality and the pion azimuthal emission angle with respect to the reaction plane. [...]
arXiv:0805.2484.- 2008 - 5 p. - Published in : Phys. Rev. C 78 (2008) 064901 APS Published version, local copy: PDF; Fulltext: PDF; External link: Fulltext
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8.
(77)
Proton - Lambda Correlations in Central Pb+Pb Collisions at $\sqrt{s_{NN}}$ = 17.3 GeV / NA49 Collaboration
The momentum correlation between protons and lambda particles emitted from central Pb+Pb collisions at sqrt(s_{NN}) = 17.3 GeV was studied by the NA49 experiment at the CERN SPS. A clear enhancement is observed for small relative momenta (q_{inv} < 0.2 GeV). [...]
arXiv:1103.3395; CERN-PH-EP-2011-032; CERN-PH-EP-2011-032.- 2011 - 14 p. - Published in : Phys. Rev. C 83 (2011) 054906 APS Published version, local copy: PDF; Draft (restricted): PDF; Fulltext: CERN-PH-EP-2011-032 - PDF; arXiv:1103.3395 - PDF; External link: Preprint
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9.
(76)
Energy dependence of particle ratio fluctuations in central Pb+Pb collisions from $\sqrt{s_{_{NN}}} =$~6.3 to 17.3 GeV / NA49 Collaboration
We present recent measurements of the energy dependence of event-by-event fluctuations in the $K/pi$ and $(p + \bar{p})/pi$ multiplicity ratios in heavy ion collisions at the CERN SPS. The particle ratio fluctuations were obtained for central Pb+Pb collisions at five collision energies, $\sqrt{s_{_{NN}}}$, between 6.3 and 17.3 GeV. [...]
arXiv:0808.1237.- 2009 - 11 p. - Published in : Phys. Rev. C 79 (2009) 044910 APS Published version, local copy: PDF; Fulltext: PDF; External link: Preprint
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10.
(76)
Viscosity of the matter created in nucleus-nucleus collisions at the SPS measured via two-pion interferometry / CERES Collaboration
Two-particle correlation measurements in ultra-relativistic nuclear collisions are analyzed to determine the ratio of shear viscosity to entropy density of the matter formed. [...]
arXiv:0907.2799. - 2009. - 4 p, 4 p.
Preprint
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