Abstract
Various flow effects of nuclear and hadronic origin are investigated in nucleus-nucleus collisions. Nuclear emulsion data collected from 84Kr + Ag/Br interaction at an incident energy of 1.52 GeV per nucleon and from 28Si + Ag/Br interaction at an incident energy of 14.5 GeV per nucleon are used in the investigation. The transverse momentum distribution and the flow angle analysis show that collective behavior, like a bounce-off effect of the projectile spectators and a sidesplash effect of the target spectators, are present in our event samples. From an azimuthal angle analysis of the data we also see a direct flow of the projectile fragments and of the produced charged particles. On the other hand, for both data samples the target fragments exhibit a reverse flow, while the projectile fragments exhibit an elliptic flow. Relevant flow parameters are measured.
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References
K.-H. Kampert, J. Phys. G 15, 691 (1989).
W. Sheid, H. Müller, and W. Greiner, Phys. Rev. Lett. 32, 741 (1974).
M. Sano et al., Phys. Lett. B 156, 27 (1985).
H. H. Gutbrod et al., Rep. Prog. Phys. 52, 1267 (1989).
H. A. Gustafsson et al., Phys. Rev. Lett. 52, 1590 (1984).
R. E. Renfordt et al., Phys. Rev. Lett. 53, 763 (1984).
J. Gosset, Phys. Lett. B 247, 233 (1990).
D. Beavis et al., Phys. Rev. Lett. 54, 1652 (1985).
H. H. Gutbrod et al., Phys. Rev. C 42, 640 (1990).
L. B. Venema et al., Phys. Rev. Lett. 71, 835 (1993).
Y. Leifels et al., Phys. Rev. Lett. 71, 963 (1993).
J.-Y. Ollitrault, Phys. Rev. D 46, 229 (1992).
A. Kugler et al., Phys. Lett. B 335, 319 (1994).
G. M. Welke et al., Phys. Rev. C 38, 2101 (1988).
S. Voloshin and Y. Zhang, Z. Phys. C 70, 665 (1996).
A. M. Poskanzer and S. A. Voloshin, Phys. Rev. C 58, 1671 (1998).
M. I. Adamovich, N. P. Andreeva, E. S. Basova, V. Bradnova, V. I. Bubnov, M. M. Chernyavsky, A. S. Gaitinov, K. G. Gulamov, M. Haiduc, D. Hasegan, L. Just, E. K. Kanygina, S. P. Kharlamov, A. D. Kovalenko, S. A. Krasnov, A. Kravcáková, V. G. Larionova, I. A. Lebedev, O. V. Levitskaya, N. S. Lukicheva, A. K. Musaeva, S. Z. Nasyrov, V. S. Navotny, G. I. Orlova, N. G. Peresadko, L. N. Philippova, V. A. Plyushchev, V. V. Rusakova, N. Saidkhanov, N. A. Salmanova, A. M. Seitimbetov, M. I. Tretyakova, T. P. Trofimova, S. Vokál, J. Vrláková, P. I. Zarubin, and S. I. Zhokhova, Phys. At. Nucl. 67, 273 (2004).
M. I. Adamovich et al., Eur. Phys. J. A 6, 427 (1999).
M. I. Adamovich, E. S. Basova, M. M. Chernyavsky, A. Dirner, K. G. Gulamov, B. Jakobsson, L. Just, M. Karabová, S. P. Kharlamov, S. A. Krasnov, V. G. Larionova, S. Z. Nasyrov, V. S. Navotny, I. D. Ojha, G. I. Orlova, A. Pavuková, N. G. Peresadko, N.V. Petrov, V.V. Rusakova, N. A. Salmanova, F. Schussler, B. K. Singh, V. Singh, K. Söderström, M. Tóthová, M. I. Tretyakova, T. P. Trofimova, U. I. Tuleeva, S. K. Tuli, B. P. Tursunov, S. Vokál, J. Vrláková, and B. S. Yuldashev, Phys. At. Nucl. 60, 1435 (1997).
M. I. Adamovich et al., Eur. Phys. J. A 2, 61 (1998).
M. I. Adamovich et al., Part. Nucl. Lett., No. 4, 75 (2000).
M. I. Adamovich et al., Phys. Lett. B 352, 472 (1995).
A. Kravcáková and S. Vokál, Czech. J. Phys. 48 (1), S127 (1998).
C. F. Powell, H. P. Fowler, and D. H. Perkins, The Study of Elementary Particles by Photographic Method (Pergamon, Oxford, 1959).
W. H. Barakas, Nuclear Research Emulsions (Academic Press, New York, 1963), Vols. 1, 2.
P. Danielewicz and G. Odyniec, Phys. Lett. B 157, 146 (1985).
W. K. Wilson et al., Phys. Rev. C 45, 738 (1992).
S. Wang et al., Phys. Rev. C 44, 1091 (1991).
H. H. Heckman, Y. J. Karant, and E. M. Friedlander, Phys. Rev. C 34, 1333 (1986).
S. Vokál et al. (EMU01 Collab.), in Proceedings of the Conference on Hadron Structure 93, Banská Štiavnica, Slovakia, 1993, Ed. by S. Dubnicka, and A. Z. Dubnicková (Bratislava}, 1993).
H. Stöcker et al., Phys. Rev. Lett. 44, 725 (1980).
G. J. Musulmanbekov, in Proceedings of the 11th EMU01 Collaboration Meeting (Dubna, 1992), p. 288.
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Mali, P., Mukhopadhyay, A., Sarkar, S. et al. Azimuthal correlation and collective behavior in nucleus-nucleus collisions. Phys. Atom. Nuclei 78, 258–267 (2015). https://doi.org/10.1134/S1063778815020210
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DOI: https://doi.org/10.1134/S1063778815020210