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Two-proton correlations from 158 A GeV Pb+Pb central collisions

Authors

Appelshauser, H Bachler, J Bailey, SJ Barna, D Barnby, LS Bartke, J Barton, RA Betev, L Bialkowska, H Billmeier, A Blyth, CO Bock, R Boimska, B Bormann, C Brady, FP Brockmann, R Brun, R Buncic, P Caines, HL Carr, LD Cebra, D Cooper, GE Cramer, JG Cristinziani, M Csata, P Dunn, J Eckardt, V Eckhardt, F Ferguson, MI Fischer, HG Flierl, D Fodor, Z Foka, P Freund, P Friese, V Fuchs, M Gabler, F Gal, J Ganz, R Gazdzicki, M Geist, W Gladysz, E Grebieszkow, J Gunther, J Harris, JW Hegyi, S Henkel, T Hill, LA Hummler, H Igo, G Irmscher, D Jacobs, P Jones, PG Kadija, K Kolesnikov, VI Kowalski, M Lasiuk, B Lednicky, R Levai, P Malakhov, AI Margetis, S Markert, C Melkumov, GL Mock, A Molnar, J Nelson, JM Oldenburg, M Odyniec, G Palla, G Panagiotou, AD Petridis, A Piper, A Porter, RJ Poskanzer, AM Prindle, DJ Puhlhofer, F Susa, T Reid, JG Renfordt, R Retyk, W Ritter, HG Rohrich, D Roland, C Roland, G Rudolph, H Rybicki, A Sammer, T Sandoval, A Sann, H Semenov, AY Schafer, E Schmischke, D Schmitz, N Schonfelder, S Seyboth, P Sikler, F Skrzypczak, E Snellings, R Squier, GTA Stock, R Strobele, H Struck, C Szentpetery, I Sziklai, J Toy, M Trainor, TA Trentalange, S Ullrich, T Vassiliou, M Veres, G Vesztergombi, G Voloshin, S Vranic, D Wang, F Weerasundara, DD Wenig, S Whitten, C Wood, L Xu, N Yates, TA Zimanyi, J Zhu, XZ Zybert, R

Citation

H. Appelshauser et al., Two-proton correlations from 158 A GeV Pb+Pb central collisions, PHYS LETT B, 467(1-2), 1999, pp. 21-28

Citations number

Categorie Soggetti

Physics

Journal title

PHYSICS LETTERS B

ISSN journal

03702693 → ACNP

Volume

467

Issue

1-2

Year of publication

1999

Pages

21 - 28

Database

ISI

SICI code

0370-2693(19991111)467:1-2<21:TCF1AG>2.0.ZU;2-W

Abstract

The two-proton correlation function at midrapidity from Pb + Pb central col lisions at 158 A GeV has been measured by the NA49 experiment. The results are compared to model predictions from static thermal Gaussian proton sourc e distributions and transport models rqmd and venus. An effective proton so urce size is determined by minimizing chi(2)/ndf between the correlation fu nctions of the data and those calculated for the Gaussian sources, yielding sigma(eff) = 3.85 +/- 0.15(stat.)(-0.25)(+0.60)(syst.) fm. Both the rqmd a nd the venus model are consistent with the data within the error in the cor relation peak region. (C) 1999 Published by Elsevier Science B.V. All right s reserved.