We investigate the beam energy dependence of neutron and proton squeeze-out in collisions of197Au+197Au atE/A=400—800 MeV. The azimuthal anisotropy that describes the enhanced emission of mid-rapidity neutrons perpendicular to the reaction plane rises strongly with the transverse momentum of the neutrons. This dependence of the azimuthal anisotropy follows a universal curve — independent of beam energy — if the neutron momenta are measured in fractions of the projectile momentum per mass unit. Analogously, the kinetic energy spectra of mid-rapidity neutrons exhibit a universal behaviour as a function of the kinetic energy of the projectile.
Energy dependence of collective flow of neutrons and protons in197Au+197Au collisions / LAMBRECHT, D ; BLAICH, T ; ELZE, TW ; EMLING, H ; FREIESLEBEN, H ; GRIMM, K; HENNING, W ; HOLZMANN, R ; KELLER, JG ; KLINGLER, H ; KRATZ, JV; KULESSA, R ; LANGE, S ; LEIFELS, Y ; LUBKIEWICZ, E ; MOORE, EF ; PROKOPOWICZ, W ; SCHMIDT, R ; SCHUTTER, C ; SPIES, H ; STELZER, K; STROTH, J ; WAJDA, E ; WALUS, W ; ZINSER, M ; ZUDE, E ; ALARD, JP ; BASRAK, Z ; BASTID, N; BELAYEV, IM ; BINI, M ; BOCK, R ; BUTA, A ; CAPLAR, R ; CERRUTI, C ; CINDRO, N; COFFIN, JP ; CROUAU, M ; DUPIEUX, P ; ERO, J; FAN, ZG ; FINTZ, P; FODOR, Z ; FREIFELDER, R ; FRAYSSE, L ; FROLOV, S ; GOBBI, A; GRIGORIAN, Y ; GUILLAUME, G ; HERRMANN, N ; HILDENBRAND, KD; HOLBLING, S ; HOUARI, O ; JEONG, SC ; JORIO, M ; JUNDT, F; KECSKEMETI, J ; KONCZ, P ; KORCHAGIN, Y ; KOTTE, R ; KRAMER, M; KUHN, C; LEGRAND, I ; LEBEDEV, A ; MAGUIRE, C ; MANKO, V ; MATULEWICZ, T ; MGEBRISHVILI, G ; MOSNER, J ; MOISA, D ; MONTAROU, G; MOREL, P; NEUBERT, W; OLMI, A; PASQUALI, G ; PELTE, D ; PETROVICI, M; POGGI, G; RAMI, F; REISDORF, W; SADCHIKOV, A; SCHULL, D ; SERES, Z; SIKORA, B; SIMION, V; SMOLYANKIN, S; SODAN, U ; TACCETTI, N ; TEH, K; TEZKRATT, R; TRZASKA, M; VASILIEV, MA; WAGNER, P; WESSELS, JP; WIENOLD, T ; WILHELMI, Z ; WOHLFARTH, D ; ZHILIN, AV. - In: ZEITSCHRIFT FÜR PHYSIK. A, HADRONS AND NUCLEI. - ISSN 0939-7922. - STAMPA. - 350:(1995), pp. 115-120. [10.1007/BF01290679]
Energy dependence of collective flow of neutrons and protons in197Au+197Au collisions
BINI, MAURIZIO;OLMI, ALESSANDRO;PASQUALI, GABRIELE;POGGI, GIACOMO;
1995
Abstract
We investigate the beam energy dependence of neutron and proton squeeze-out in collisions of197Au+197Au atE/A=400—800 MeV. The azimuthal anisotropy that describes the enhanced emission of mid-rapidity neutrons perpendicular to the reaction plane rises strongly with the transverse momentum of the neutrons. This dependence of the azimuthal anisotropy follows a universal curve — independent of beam energy — if the neutron momenta are measured in fractions of the projectile momentum per mass unit. Analogously, the kinetic energy spectra of mid-rapidity neutrons exhibit a universal behaviour as a function of the kinetic energy of the projectile.
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