CENTRALITY DEPENDENCE OF NEUTRAL PION-PRODUCTION IN 158A GEV PB-208-208 COLLISIONS(PB)

Authors
AGGARWAL MM AGNIHOTRI A AHAMMED Z ANGELIS ALS ANTONENKO V AREFIEV V ASTAKHOV V AVDEITCHIKOV V AWES TC BABA PVKS BADYAL SK BALDINE A BARABACH L BARLAG C BATHE S BATIOUNIA B BERNIER T BHALLA KB BHATIA VS BLUME C BOCK R BOHNE EM BOROCZ ZK BUCHER D BUIJS A BUSCHING H CARLEN L CHALYSHEV V CHATTOPADHYAY S CHERBATCHEV R CHUJO T CLAUSSEN A DAS AC DECOWSKI MP DJORDJADZE V DONNI P DOUBOVIK I MAJUMDAR MRD ELCHENAWI K ELISEEV S ENOSAWA K FOKA P FOKIN S FROLOV V GANTI MS GARPMAN S GAVRISHCHUK O GEURTS FJM GHOSH TK GLASOW R GUPTA SK GUSKOV B GUSTAFSSON HA GUTBROD HH HIGUCHI R HRIVNACOVA I IPPOLITOV M KALECHOFSKY H KAMERMANS R KAMPERT KH KARADJEV K KARPIO K KATO S KEES S KIM H KOLB BW KOSAREV I KOUTCHERYAEV I KRUMPEL T KUGLER A KULINICH P KURATA M KURITA K KUZMIN N LANGBEIN I LEBEDEV A LEE YY LOHNER H LUQUIN L MAHAPATRA DP MANKO V MARTIN M MAXIMOV A MEHDIYEV R MGEBRICHVILI G MIAKE Y MIKHALEV D MISHRA GC MIYAMOTO Y MORRISON D MUKHOPADHYAY DS MYALKOVSKI V NAEF H NANDI BK NAYAK SK NAYAK TK NEUMAIER S NIANINE A NIKITINE V NIKOLAEV S NILSSON P NISHIMURA S NOMOKONOV P NYSTRAND J OBENSHAIN FE OSKARSSON A OTTERLUND I PACHR M PARFENOV A PAVLIOUK S PIETZMANN T PATRACEK V PINANAUD W PLASIL F PURSCHKE ML RAEVEN B RAK J RANIWALA R RANIWALA S RAMAMURTHY VS RAO NK RETIERE F REYGERS K ROLAND G ROSSELET L ROUFANOV I ROY C RUBIO JM SAKO H SAMBYAL SS SANTO R SATO S SCHLAGHECK H SCHMIDT HR SHABRATOVA G SIBIRIAK I SIEMIARCZUK T SILVERMYR D SINHA BC SLAVINE N SODERSTROM K SOLOMEY N SORENSEN SP STANKUS P STEFANEK G STEINBERG P STENLUND E STUKEN D SUMBERA M SVENSSON T TRIVEDI MD TSVETKOV A TWENHOFEL C TYKARSKI L URBAHN J VONEIJNDHOVEN N VONNIEUWENHUIZEN GJ VINOGRADOV A VIYOGI YP VODOPIANOV A VOROS S WYSLOUCH B YAGI K YOKOTA Y YOUNG GR
Citation
Mm. Aggarwal et al., CENTRALITY DEPENDENCE OF NEUTRAL PION-PRODUCTION IN 158A GEV PB-208-208 COLLISIONS(PB), Physical review letters, 81(19), 1998, pp. 4087-4091
Citations number
21
Categorie Soggetti
Physics
Journal title
Physical review letters → ACNP
ISSN journal
00319007
Volume
81
Issue
19
Year of publication
1998
Pages
4087 - 4091
Database
ISI
SICI code
0031-9007(1998)81:19<4087:CDONPI>2.0.ZU;2-D
Abstract
The production of neutral pions in 158A GeV Pb-208 + Pb-208 collisions has been studied in the WA98 experiment at the CERN Super Proton Sync hrotron (SPS). Transverse momentum spectra are studied for the range 0 .3 less than or equal to m(T) - m(0) less than or equal to 4.0 GeV/c. The results for central collisions are compared to various models. The centrality dependence of the neutral pion spectral shape and yield is investigated. An invariance of the spectral shape and a simple scalin g of the yield with the number of participating nucleons is observed f or centralities with greater than about 30 participating nucleons. Thi s is most naturally explained by assuming an equilibrated system. [S00 31-9007(98)07532-2].