SPECTATOR NUCLEONS IN PB-CENTER-DOT-GEV(PB COLLISIONS AT 158 A)

Authors
APPELSHAUSER H BACHLER J BAILEY SJ BARNBY LS BARTKE J BARTON RA 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 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 GAZDZICKI M GLADYSZ E GORODETSKY P GREBIESZKOW J GUNTHER J HARRIS JW HEGYI S HENKEL T HILL LA HUANG I 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 MOCK A MOLNAR J NELSON JM ODYNIEC G PALLA G PANAGIOTOU AD PETRIDIS A PIPER A PORTER RJ POSKANZER AM POZIOMBKA S PRINDLE DJ PUHLHOFER F RAUCH W REID JG RENFORDT R RETYK W RITTER HG ROHRICH D ROLAND C ROLAND G RUDOLPH H RYBICKI A SAKREJDA I SANDOVAL A SANN H SEMENOV AY SCHAFER E SCHMISCHKE D SCHMITZ N SCHONFELDER S SEYBOTH P SEYERLEIN J SIKLER F SKRZYPCZAK E SQUIER GTA STOCK R STROBELE H SZENTPETERY I SZIKLAI J TOY M TRAINOR TA TRENTALANGE S ULLRICH T VASSILIOU M VESZTERGOMBI G VRANIC D WANG F WEERASUNDARA DD WENIG S WHITE S WHITTEN C WIENOLD T WOOD L YATES TA ZIMANYI J ZHU XZ ZYBERT R
Citation
H. Appelshauser et al., SPECTATOR NUCLEONS IN PB-CENTER-DOT-GEV(PB COLLISIONS AT 158 A), EUROPEAN PHYSICAL JOURNAL A-HADRONS AND NUCLEI, 2(4), 1998, pp. 383-390
Citations number
18
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields
Journal title
EUROPEAN PHYSICAL JOURNAL A-HADRONS AND NUCLEI → ACNP
Volume
2
Issue
4
Year of publication
1998
Pages
383 - 390
Database
ISI
SICI code
Abstract
The composition of forward-going projectile spectator matter in fixed- target Pb+Pb collisions at 158 A.GeV at the CERN SPS has been studied as a function of centrality. The data were measured with the NA49 veto calorimeter. We observe that forward-going spectator matter in centra l collisions consists of 9 neutrons, 7 protons, and half a deuteron on average. At large impact parameters most spectator nucleons are bound in fragments. The relative resolution of the average impact parameter derived from the measurement of spectator neutrons is roughly 19% in the range from zero to half maximum impact parameters.