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Title: Properties of the initial participant matter interaction zone in near-Fermi-energy heavy-ion collisions

Abstract

The sizes, temperatures, and free neutron-to-proton ratios of the initial interaction zones produced in the collisions of 40 MeV/nucleon {sup 40}Ar+{sup 112}Sn and 55 MeV/nucleon {sup 27}Al+{sup 124}Sn are derived using total detected neutron plus charged particle multiplicity as a measure of the impact parameter range and number of participant nucleons. The size of the initial interaction zone, determined from a coalescence model analysis, increases significantly with decreasing impact parameter. The temperatures and free neutron-to-proton ratios in the interaction zones are relatively similar for different impact parameter ranges and evolve in a similar fashion.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1] more »;  [2];  [2];  [3];  [3];  [3];  [4];  [5];  [6] « less
  1. Cyclotron Institute, Texas A and M University, College Station, Texas 77843 (United States)
  2. (Italy)
  3. (Poland)
  4. (Belgium)
  5. (Mexico)
  6. (Japan) (and others)
Publication Date:
OSTI Identifier:
20990960
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 75; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.75.014604; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALUMINIUM 27; ARGON 40; CHARGED PARTICLES; HEAVY ION REACTIONS; IMPACT PARAMETER; MEV RANGE 10-100; NEUTRONS; PROTONS; TIN 112; TIN 124

Citation Formats

Wang, J., Keutgen, T., Wada, R., Hagel, K., Kowalski, S., Materna, T., Qin, L., Chen, Z., Natowitz, J. B., Ma, Y. G., Murray, M., Keksis, A., Martin, E., Ruangma, A., Shetty, D. V., Souliotis, G., Veselsky, M., Winchester, E. M., Yennello, S. J., Fabris, D., INFN and Dipartimento di Fisica dell' Universita di Padova, I-35131 Padova, INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Institute of Nuclear Physics, ul. Radzikowskiego 152, PL-31-342 Krakow, Jagellonian University, M Smoluchowski Institute of Physics, PL-30059, Krakow, Institute of Physics, University of Silesia, PL-40007, Katowice, FNRS and IPN, Universite Catholique de Louvain, B-1348 Louvain-Neuve, Instituto de Fisica, Universidad National Autonoma de Mexico, Apactado Postal 20-364 01000, Mexico City, and Department of Physics, Tohoku University, Sendai 980-8578. Properties of the initial participant matter interaction zone in near-Fermi-energy heavy-ion collisions. United States: N. p., 2007. Web. doi:10.1103/PHYSREVC.75.014604.
Wang, J., Keutgen, T., Wada, R., Hagel, K., Kowalski, S., Materna, T., Qin, L., Chen, Z., Natowitz, J. B., Ma, Y. G., Murray, M., Keksis, A., Martin, E., Ruangma, A., Shetty, D. V., Souliotis, G., Veselsky, M., Winchester, E. M., Yennello, S. J., Fabris, D., INFN and Dipartimento di Fisica dell' Universita di Padova, I-35131 Padova, INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Institute of Nuclear Physics, ul. Radzikowskiego 152, PL-31-342 Krakow, Jagellonian University, M Smoluchowski Institute of Physics, PL-30059, Krakow, Institute of Physics, University of Silesia, PL-40007, Katowice, FNRS and IPN, Universite Catholique de Louvain, B-1348 Louvain-Neuve, Instituto de Fisica, Universidad National Autonoma de Mexico, Apactado Postal 20-364 01000, Mexico City, & Department of Physics, Tohoku University, Sendai 980-8578. Properties of the initial participant matter interaction zone in near-Fermi-energy heavy-ion collisions. United States. doi:10.1103/PHYSREVC.75.014604.
Wang, J., Keutgen, T., Wada, R., Hagel, K., Kowalski, S., Materna, T., Qin, L., Chen, Z., Natowitz, J. B., Ma, Y. G., Murray, M., Keksis, A., Martin, E., Ruangma, A., Shetty, D. V., Souliotis, G., Veselsky, M., Winchester, E. M., Yennello, S. J., Fabris, D., INFN and Dipartimento di Fisica dell' Universita di Padova, I-35131 Padova, INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro, Institute of Nuclear Physics, ul. Radzikowskiego 152, PL-31-342 Krakow, Jagellonian University, M Smoluchowski Institute of Physics, PL-30059, Krakow, Institute of Physics, University of Silesia, PL-40007, Katowice, FNRS and IPN, Universite Catholique de Louvain, B-1348 Louvain-Neuve, Instituto de Fisica, Universidad National Autonoma de Mexico, Apactado Postal 20-364 01000, Mexico City, and Department of Physics, Tohoku University, Sendai 980-8578. Mon . "Properties of the initial participant matter interaction zone in near-Fermi-energy heavy-ion collisions". United States. doi:10.1103/PHYSREVC.75.014604.
@article{osti_20990960,
title = {Properties of the initial participant matter interaction zone in near-Fermi-energy heavy-ion collisions},
author = {Wang, J. and Keutgen, T. and Wada, R. and Hagel, K. and Kowalski, S. and Materna, T. and Qin, L. and Chen, Z. and Natowitz, J. B. and Ma, Y. G. and Murray, M. and Keksis, A. and Martin, E. and Ruangma, A. and Shetty, D. V. and Souliotis, G. and Veselsky, M. and Winchester, E. M. and Yennello, S. J. and Fabris, D. and INFN and Dipartimento di Fisica dell' Universita di Padova, I-35131 Padova and INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro and Institute of Nuclear Physics, ul. Radzikowskiego 152, PL-31-342 Krakow and Jagellonian University, M Smoluchowski Institute of Physics, PL-30059, Krakow and Institute of Physics, University of Silesia, PL-40007, Katowice and FNRS and IPN, Universite Catholique de Louvain, B-1348 Louvain-Neuve and Instituto de Fisica, Universidad National Autonoma de Mexico, Apactado Postal 20-364 01000, Mexico City and Department of Physics, Tohoku University, Sendai 980-8578},
abstractNote = {The sizes, temperatures, and free neutron-to-proton ratios of the initial interaction zones produced in the collisions of 40 MeV/nucleon {sup 40}Ar+{sup 112}Sn and 55 MeV/nucleon {sup 27}Al+{sup 124}Sn are derived using total detected neutron plus charged particle multiplicity as a measure of the impact parameter range and number of participant nucleons. The size of the initial interaction zone, determined from a coalescence model analysis, increases significantly with decreasing impact parameter. The temperatures and free neutron-to-proton ratios in the interaction zones are relatively similar for different impact parameter ranges and evolve in a similar fashion.},
doi = {10.1103/PHYSREVC.75.014604},
journal = {Physical Review. C, Nuclear Physics},
number = 1,
volume = 75,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}