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CERN Document Server 2,023 のレコードが見つかりました。  1 - 10次最後  レコードへジャンプ： 検索にかかった時間： 0.76 秒 
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Universal pion freeze-out in heavy-ion collisions / Adamova, D ; Agakichiev, G ; Appelshäuser, H ; Belaga, V ; Braun-Munzinger, P ; Castillo, A ; Cherlin, A ; Damjanovic, S ; Dietel, T ; Dietrich, L et al.
Based on an evaluation of recent systematic data on two-pion interferometry and on measured particle yields at mid-rapidity, we propose a universal condition for thermal freeze-out of pions in heavy-ion collisions. We show that freeze-out occurs when the mean free path of pions lambda_f reaches a value of approximately 2.5 fm, which is much smaller than the spatial extent of the system at freeze-out. [...]
nucl-ex/0207008.- Darmstadt : GSI, 2003 - 5 p. - Published in : Phys. Rev. Lett. 90 (2003) 022301 APS Published version, local copy: PDF; External link: nucl-ex/0207008 PDF
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2.
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Dilepton measurements with CERES / CERES Collaboration
We report on dilepton measurements for central Pb on Au collisions at the top CERN SPS energy with the upgraded CERES experiment. The dilepton mass spectrum of 2000 data with improved mass resolution shows an enhancement over the expectation from hadron decays that is well described by a model including a strong broadening of the $\rho$ spectral function. [...]
arXiv:0802.2679.- 2008 External link: Fulltext
In : 4th International Workshop on Critical Point and Onset of Deconfinement, Darmstadt, Germany, 9 - 13 Jul 2007, pp.034
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3.
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New results from CERES / CERES Collaboration
We will focus here on results from the 1999 data taking period, where 8 M Pb+Au events at 40 AGeV were recorded. Since the new readout system of the TPC was not yet properly working, this data set is limited in terms of statistics, and momentum resolution. [...]
Geneva : CERN, 2002 - Published in : Nucl. Phys. A 698 (2002) 253C-60C
In : 15th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions, Stony Brook, NY, USA, 15 - 20 Jan 2001, pp.253C-60C
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4.
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Latest results on $e^{+}e^{-}$ pair production in CERES / Adamova, Dagmar ; Agakichiev, G ; Andronic, A ; Antonczyk, D ; Appelshäuser, H ; Belaga, V ; Bielcikova, J ; Braun-Munzinger, P ; Busch, O ; Campagnolo, R et al.
Recent results of the CERES experiment at the CERN SPS on low-mass electron pair analysis and $\phi \to K^{+}K^{-}$ are discussed and compared to models..
2005 - Published in : Nucl. Phys. A 749 (2005) 160c-165c
In : 18th Nuclear Physics Division Conference on Phase Transitions In Strongly Interacting Matter, Prague, Czech Republic, 23 - 29 Aug 2004, pp.160c-165c
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5.
(54)
Low-mass lepton pair production in Pb - Au collisions at 40 A $\cdot$ GeV / Adamova, D ; Agakichiev, G ; Appelshäuser, H ; Belaga, V ; Braun-Munzinger, P ; Cherlin, A ; Damjanovic, S ; Dietel, T ; Dietrich, L ; Drees, A et al.
The CERES/NA45 experiment at the CERN SPS has previously measured e **+e**- pair production in 160 A center dot GeV Pb-Au collisions. In the mass region m greater than 0.2 GeV/c**2, an enhancement of 2.7 plus or minus 0.4(stat.) plus or minus 0.5(syst.) compared to the expectation from known hadronic decay sources was observed. [...]
2003 - Published in : Pramana - J. Phys. 60 (2003) 1067-1072
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6.
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First results from the CERES radial TPC / Marin, A ; Agakichiev, G ; Appelshäuser, H ; Baur, R ; Belaga, V ; Bell, R ; Braun-Munzinger, P ; Ceretto, F ; Cherlin, A ; Damjanovic, S et al.
The CERES/NA45 experiment at the CERN SPS was upgraded in 1998 by the addition of a cylindrical Time Projection Chamber. The aim is to improve the mass resolution of e sup + e sup - pairs in the rho/omega/phi region to DELTA m/m < 2%. [...]
1999 - Published in : Nucl. Phys. A 661 (1999) 673-676
In : 14th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions, Turin, Italy, 10 - 15 May 1999, pp.673-676
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7.
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Beam energy and centrality dependence of two-pion Bose-Einstein correlations at SPS energies / CERES Collaboration
Results are presented of a two-pion interferometry (HBT) analysis in Pb+Au collisions at 40, 80, and 158 AGeV. A detailed study of the Bertsch-Pratt HBT radius parameters has been performed as function of the mean pair transverse momentum $k_t$ and in bins of the centrality of the collision. [...]
nucl-ex/0207005.- 2003 - 24 p. - Published in : Nucl. Phys. A 714 (2003) 124-44 Fulltext: PDF; External link: Fulltext
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8.
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$\Lambda$ production in 40 A GeV/c Pb - Au collisions / CERES Collaboration
During the 1999 lead run, CERES has measured hadron and electron-pair production at 40 A GeV/c beam momentum with the spectrometer upgraded by the addition of a radial TPC. Here the analysis of lambda and antilambda will be presented..
nucl-ex/0201002.- Heidelberg : Heidelberg Univ., 2002 - 8 p. - Published in : J. Phys. G 28 (2002) 1861-1868 Fulltext: PDF; External link: nucl-ex/0201002 PDF
In : 6th International Conference on Strange Quarks in Matter : a Flavourspace Odyssey, Frankfurt am Main, Germany, 25 - 29 Sep 2001, pp.1861-1868
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9.
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Freeze-out conditions in ultrarelativistic heavy-ion collisions / NA44 Collaboration
1996
In : Conference on Strangeness in Hadronic Matter - Strangeness '96, Budapest, Hungary, 15 - 17 May 1996, pp.263-270
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10.
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Leptonic and charged kaon decay modes of the $\phi$ meson measured in heavy-ion collisions at the CERN Super Proton Synchrotron / CERES Collaboration
We report a measurement of $\phi$ meson production in central Pb+Au collisions at E$_{lab}$/A=158 GeV. For the first time in heavy-ion collisions, $\phi$ mesons were reconstructed in the same experiment both in the K$^+$K$^-$ and the dilepton decay channel. [...]
nucl-ex/0512007.- 2006 - 11 p. - Published in : Phys. Rev. Lett. 96 (2006) 152301 APS Published version, local copy: PDF; Access to fulltext document: PDF; Fulltext: PDF; External link: nucl-ex/0512007 PDF
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