Abstract
The production of neutral pions by the interaction of 200A·GeV p and16O projectiles with a Au target has been studied in the pseudorapidity range 1.5≦η≦2.1. Transverse momentum spectra have been measured between 0.4 GeV/c and 3.6 GeV/c and their dependence on the centrality of the collision has been investigated. The peripheral-collision spectra display a marked change of slope with a hard component starting at about 1.8 GeV/c, in contrast to central-collision data. The data are discussed in comparison to p+p and α+α data from the ISR.
Similar content being viewed by others
References
Quark Matter, H. Satz, H. Specht, R. Stock, (eds.): Z. Phys. C—Particles and Fields 38 (1988) and references therein
Quark matter formation and heavy ion collisions. Proc. Bielefeld Workshop (1982) M. Jacob, H. Satz (eds.) Singapore: World Scientific, 1982 and references therein
R. Albrecht et al. WA80 Coll.: Phys. Lett. B201 (1988) 390
H. Löhner et al. WA80 Coll.: Z. Phys. C—Particles and Fields 38 (1988) 97
H.H. Gutbrod et al.: GSI preprint GSI-85-32, 1985; CERN SPSC/85-39/M406
R. Albrecht et al. WA80 Coll.: Phys. Lett. B199 (1987) 297
R. Albrecht et al. WA80 Coll.: Phys. Lett B202 (1988) 596
H. Baumeister et al.: Design and performance of the SAPHIR lead glass calorimeter. Nucl. Instrum. Methods (to appear)
M. Della Negra: Phys. Scr. 23 (1981) 469
P.R. Bevington: Data reduction and error analysis for the physical sciences. New York: McGraw-Hill 1969
S.P. Sørensen et al. WA80 Coll.: Z. Phys. C—Particles and Fields 38 (1988) 3
L. Dragon: Doctoral thesis, University of Münster (1989)
B. Andersson, G. Gustafson, B. Nilsson-Almqvist: Nucl. Phys. B281 (1987) 289; B. Nilsson-Almqvist, E. Stenlund: Comp. Phys. Commun. 43 (1987) 387
J.W. Cronin et al.: Phys. Rev. D11 (1975) 3105; D. Antreasyan et al.: R.L. Summer: Phys. Rev. D 19 (1979) 764
M.A. Faessler: Phys. Rep. 115 (1984) 1
R. Hagedorn: Riv. Nuovo Cimento 6 (1983) 1
T. Åkesson et al. HELIOS Coll. Z. Phys. C—Particles and Fields 46 (1990) 361
B. Alper et al. BS Coll.: Nucl. Phys. B100 (1975) 237
W. Bell et al. CERN-Heidelberg-Lund Coll.: Z. Phys. C—Particles and Fields 27 (1985) 191
T. Åkesson et al. AFS Coll.: Nucl. Phys. B209 (1982) 309–320
M. Lev, B. Petersson: Z. Phys. C21 (1983) 155; U.P. Sukhatme, G. Wilk: Phys. Rev. D25 (1982) 1978
M. Kataja, P.V. Ruuskanen, L.D. McLerran, H. von Gersdorff: Phys. Rev. D34 (1986) 2755
M. Danos, J. Rafelski: Phys. Rev. D27 (1983) 671
K.S. Lee, U. Heinz: Z. Phys. C—Particles and Fields 43 (1989) 425
E.V. Shuryak: Phys. Rep. 61 (1980) 71
E.V. Shuryak: Novosibirsk, preprint 87-142; E.V. Shuryak: Phys. Lett. B207 (1988) 345; E.V. Shuryak: CERN-TH-5386/89 (1989), to be published in L. van Hove Festschrift, World Scientific
Author information
Authors and Affiliations
Consortia
Rights and permissions
About this article
Cite this article
WA80 Collaboration., Albrecht, R., Awes, T.C. et al. Transverse momentum distributions of neutral pions from central and peripheral16O+Au collisions at 200A·GeV. Z. Phys. C - Particles and Fields 47, 367–375 (1990). https://doi.org/10.1007/BF01565859
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01565859