In this paper, we present results on transverse mass spectra and Hanbury Brown and Twiss correlation functions of negatively charged hadrons, which are expected to be mostly pi(-), measured in Pb-Pb collisions at 40 A GeV/c beam momentum. Based on these data, the collision dynamics and the spacetime Kextent of the system at the thermal freeze-out are studied over a centrality range corresponding to the most central 53% of the Pb-Pb inelastic crosssection. Comparisons with freeze-out conditions of strange particles and HBT results from other experiments are discussed.

Expansion dynamics of Pb-Pb collisions at 40 A GeV/c viewed by negatively charged hadrons / Antinori, F.; Bacon, P.; Badala, A.; Barbera, R.; Belogianni, A.; Bloodworth, I. J.; Bombara, M.; Bruno, Giuseppe Eugenio; Bull, S. A.; Caliandro, R.; Campbell, M.; Carena, W.; Carrer, N.; Clarke, R. F.; Dainese, A.; Di Bari, D.; Di Liberto, S.; Divia, R.; Elia, D.; Evans, D.; Feofilov, G. A.; Fini, R. A.; Ganoti, P.; Ghidini, B.; Grella, G.; Helstrup, H.; Hetland, K. F.; Holme, A. K.; Jacholkowski, A.; Jones, G. T.; Jovanovic, P.; Jusko, A.; Kamermans, R.; Kinson, J. B.; Knudson, K.; Kondratiev, V.; Kralik, I.; Kravakova, A.; Kuijer, P.; Lenti, V.; Lietava, R.; Løvhøiden, G.; Manzari, V.; Mazzoni, M. A.; Meddi, F.; Michalon, A.; Morando, M.; Norman, P. I.; Palmeri, A.; Pappalardo, G. S.; Pastirak, B.; Platt, R. J.; Quercigh, E.; Riggi, F.; Röhrich, D.; Romano, G.; Romita, R.; Afaík, K.; Šandor, L.; Schillings, E.; Segato, G.; Sené, M.; Sené, R.; Snoeys, W.; Soramel, F.; Spyropoulou Stassinaki, M.; Staroba, P.; Turrisi, R.; Tveter, T. S.; Urban, J.; Van De Ven, P.; Vyvre, P. V.; Vascotto, A.; Vik, T.; Baillie, O. V.; Vinogradov, L.; Virgili, T.; Votruba, M. F.; Vrlakova, J.; Zavada, P.. - In: JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS. - ISSN 0954-3899. - 34:3(2007), pp. 403-429. [10.1088/0954-3899/34/3/001]

Expansion dynamics of Pb-Pb collisions at 40 A GeV/c viewed by negatively charged hadrons

BRUNO, Giuseppe Eugenio;
2007-01-01

Abstract

In this paper, we present results on transverse mass spectra and Hanbury Brown and Twiss correlation functions of negatively charged hadrons, which are expected to be mostly pi(-), measured in Pb-Pb collisions at 40 A GeV/c beam momentum. Based on these data, the collision dynamics and the spacetime Kextent of the system at the thermal freeze-out are studied over a centrality range corresponding to the most central 53% of the Pb-Pb inelastic crosssection. Comparisons with freeze-out conditions of strange particles and HBT results from other experiments are discussed.
2007
Expansion dynamics of Pb-Pb collisions at 40 A GeV/c viewed by negatively charged hadrons / Antinori, F.; Bacon, P.; Badala, A.; Barbera, R.; Belogianni, A.; Bloodworth, I. J.; Bombara, M.; Bruno, Giuseppe Eugenio; Bull, S. A.; Caliandro, R.; Campbell, M.; Carena, W.; Carrer, N.; Clarke, R. F.; Dainese, A.; Di Bari, D.; Di Liberto, S.; Divia, R.; Elia, D.; Evans, D.; Feofilov, G. A.; Fini, R. A.; Ganoti, P.; Ghidini, B.; Grella, G.; Helstrup, H.; Hetland, K. F.; Holme, A. K.; Jacholkowski, A.; Jones, G. T.; Jovanovic, P.; Jusko, A.; Kamermans, R.; Kinson, J. B.; Knudson, K.; Kondratiev, V.; Kralik, I.; Kravakova, A.; Kuijer, P.; Lenti, V.; Lietava, R.; Løvhøiden, G.; Manzari, V.; Mazzoni, M. A.; Meddi, F.; Michalon, A.; Morando, M.; Norman, P. I.; Palmeri, A.; Pappalardo, G. S.; Pastirak, B.; Platt, R. J.; Quercigh, E.; Riggi, F.; Röhrich, D.; Romano, G.; Romita, R.; Afaík, K.; Šandor, L.; Schillings, E.; Segato, G.; Sené, M.; Sené, R.; Snoeys, W.; Soramel, F.; Spyropoulou Stassinaki, M.; Staroba, P.; Turrisi, R.; Tveter, T. S.; Urban, J.; Van De Ven, P.; Vyvre, P. V.; Vascotto, A.; Vik, T.; Baillie, O. V.; Vinogradov, L.; Virgili, T.; Votruba, M. F.; Vrlakova, J.; Zavada, P.. - In: JOURNAL OF PHYSICS. G, NUCLEAR AND PARTICLE PHYSICS. - ISSN 0954-3899. - 34:3(2007), pp. 403-429. [10.1088/0954-3899/34/3/001]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11589/6551
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