STOPPING AND COLLECTIVE EFFECTS AT SPS ENERGIES

Authors
AFANASIEV SV ALBER T APPELSHAUSER H BACHLER J BARNBY LS BARTKE J BIALKOWSKA H BLYTH CO BOCK R BORMANN C BRADY FP BROCKMANN R BUNCIC N BUNCIC P CAINES HL CEBRA D CHAN P COOPER GE CRAMER JG CRAMER PB CSATO P CYPRIAN M DERADO I DIETZ O DUNN J ECKARDT V ECKHARDT F EULER S FERGUSON MI FISCHER HG FLIERL D FODOR Z FOKA P FREUND P FUCHS M GABLER F GAL J GAZDZICKI M GLADYSZ E GREBIESZKOW J GUNTHER J HARRIS JW HEGYI S HILL LA HUANG I HOWE MA HUMMLER H IGO G IRMSCHER D JACOBS P JONES PG KADIJA K KOLESNIKOV VI KOWALSKI M LASIUK B LEVAI P MALAKHOV AI MARGETIS S MARKERT C MELKUMOV GL MITCHELL JW MOCK A MOLNAR J NELSON JM ODYNIEC G PALLA G PANAGIOTOU AD PETRIDIS A PIPER A POSKANZER AM POZIOMBKA S PRINDLE DJ PUHLHOFER F RAUCH W RENFORDT R RETYK W RITTER HG ROHRICH D ROLAND C ROLAND G RUDOLPH H RYBICKI A SANDOVAL A SANN H SEMENOV AY SCHAFER E SCHMISCHKE D SCHMITZ N SCHONFELDER S SEYBOTH P SEYERLEIN J SIKLER F SKRZYPCZAK E STOCK R STROBELE H SZENTPETERY I SZIKLAI J TOY M TRAINOR TA TRENTALANGE S VASSILIOU M VESZTERGOMBI G VRANIC D WEERASUNDARA D WENIG S WHITTEN C WIENOLD T WOOD L YATES TA ZIMANYI J ZHU XZ ZYBERT R
Citation
Sv. Afanasiev et al., STOPPING AND COLLECTIVE EFFECTS AT SPS ENERGIES, Nuclear physics. A, 610, 1996, pp. 76-87
Citations number
22
Categorie Soggetti
Physics, Nuclear
Journal title
Nuclear physics. A → ACNP
ISSN journal
03759474
Volume
610
Year of publication
1996
Pages
76 - 87
Database
ISI
SICI code
0375-9474(1996)610:<76:SACEAS>2.0.ZU;2-5
Abstract
We discuss preliminary data on stopping for central Pb + Pb collisions at 158 GeV/nucleon. The (net) proton rapidity density measured by the NA49 Time Projection Chambers, NA49 Time of Flight and the NA44 spect rometer is presented. Slightly higher stopping is observed relative to S + S at 200 GeV/nucleon. The rapidity density exhibits a plateau aro und mid-rapidity which is qualitatively different from results at the AGS and BEVALAC/SIS energies. The second part of the paper discusses t he azimuthal correlation of the energy flow. Preliminary results revea l that the 'fireball' preserves the information of the collision geome try even at SPS energies.