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Title: Scaling properties in bulk and p T -dependent particle production near midrapidity in relativistic heavy ion collisions

Abstract

The centrality dependence of the midrapidity charged-particle multiplicity density (|η| < 1) is presented for Au + Au and Cu + Cu collisions at RHIC over a broad range of collision energies. The multiplicity measured in the Cu + Cu system is found to be similar to that measured in the Au + Au system, for an equivalent N part, with the observed factorization in energy and centrality still persistent in the smaller Cu + Cu system. The extent of the similarities observed for bulk particle production is tested by a comparative analysis of the inclusive transverse momentum distributions for Au + Au and Cu + Cu collisions near midrapidity. It is found that, within the uncertainties of the data, the ratio of yields between the various energies for both Au + Au and Cu + Cu systems are similar and constant with centrality, both in the bulk yields and as a function of p T, up to at least 4 GeV/c. As a result, the effects of multiple nucleon collisions that strongly increase with centrality and energy appear to only play a minor role in bulk and intermediate transverse momentum particle production.

Authors:
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Publication Date:
Research Org.:
Univ. of Maryland, College Park, MD (United States); Rochester Univ., Rochester, NY (United States); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Argonne National Lab., Argonne, IL (United States); Brookhaven National Lab., Upton, NY (United States)
Sponsoring Org.:
USDOE
Contributing Org.:
PHOBOS Collaboration
OSTI Identifier:
1505732
Grant/Contract Number:  
FG02-93ER40802; AC02-98CH10886; FG02-94ER40818; FG02-94ER40865; FG02-99ER41099; AC02-06CH11357; 9603486; 0072204; 0245011; NSC 89-2112-M-008-024; F 049823
Resource Type:
Accepted Manuscript
Journal Name:
Physical Review. C, Nuclear Physics
Additional Journal Information:
Journal Volume: 80; Journal Issue: 1; Journal ID: ISSN 0556-2813
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Alver, B., Back, B. B., Baker, M. D., Ballintijn, M., Barton, D. S., Betts, R. R., Bindel, R., Busza, W., Chai, Z., Chetluru, V., García, E., Gburek, T., Gulbrandsen, K., Hamblen, J., Harnarine, I., Henderson, C., Hofman, D. J., Hollis, R. S., Hołyński, R., Holzman, B., Iordanova, A., Kane, J. L., Kulinich, P., Kuo, C. M., Li, W., Lin, W. T., Loizides, C., Manly, S., Mignerey, A. C., Nouicer, R., Olszewski, A., Pak, R., Reed, C., Richardson, E., Roland, C., Roland, G., Sagerer, J., Sedykh, I., Smith, C. E., Stankiewicz, M. A., Steinberg, P., Stephans, G. S. F., Sukhanov, A., Szostak, A., Tonjes, M. B., Trzupek, A., Nieuwenhuizen, G. J. van, Vaurynovich, S. S., Verdier, R., Veres, G., Walters, P., Wenger, E., Willhelm, D., Wolfs, F. L. H., Wosiek, B., Woźniak, K., Wyngaardt, S., and Wysłouch, B. Scaling properties in bulk and pT-dependent particle production near midrapidity in relativistic heavy ion collisions. United States: N. p., 2009. Web. doi:10.1103/physrevc.80.011901.
Alver, B., Back, B. B., Baker, M. D., Ballintijn, M., Barton, D. S., Betts, R. R., Bindel, R., Busza, W., Chai, Z., Chetluru, V., García, E., Gburek, T., Gulbrandsen, K., Hamblen, J., Harnarine, I., Henderson, C., Hofman, D. J., Hollis, R. S., Hołyński, R., Holzman, B., Iordanova, A., Kane, J. L., Kulinich, P., Kuo, C. M., Li, W., Lin, W. T., Loizides, C., Manly, S., Mignerey, A. C., Nouicer, R., Olszewski, A., Pak, R., Reed, C., Richardson, E., Roland, C., Roland, G., Sagerer, J., Sedykh, I., Smith, C. E., Stankiewicz, M. A., Steinberg, P., Stephans, G. S. F., Sukhanov, A., Szostak, A., Tonjes, M. B., Trzupek, A., Nieuwenhuizen, G. J. van, Vaurynovich, S. S., Verdier, R., Veres, G., Walters, P., Wenger, E., Willhelm, D., Wolfs, F. L. H., Wosiek, B., Woźniak, K., Wyngaardt, S., & Wysłouch, B. Scaling properties in bulk and pT-dependent particle production near midrapidity in relativistic heavy ion collisions. United States. doi:10.1103/physrevc.80.011901.
Alver, B., Back, B. B., Baker, M. D., Ballintijn, M., Barton, D. S., Betts, R. R., Bindel, R., Busza, W., Chai, Z., Chetluru, V., García, E., Gburek, T., Gulbrandsen, K., Hamblen, J., Harnarine, I., Henderson, C., Hofman, D. J., Hollis, R. S., Hołyński, R., Holzman, B., Iordanova, A., Kane, J. L., Kulinich, P., Kuo, C. M., Li, W., Lin, W. T., Loizides, C., Manly, S., Mignerey, A. C., Nouicer, R., Olszewski, A., Pak, R., Reed, C., Richardson, E., Roland, C., Roland, G., Sagerer, J., Sedykh, I., Smith, C. E., Stankiewicz, M. A., Steinberg, P., Stephans, G. S. F., Sukhanov, A., Szostak, A., Tonjes, M. B., Trzupek, A., Nieuwenhuizen, G. J. van, Vaurynovich, S. S., Verdier, R., Veres, G., Walters, P., Wenger, E., Willhelm, D., Wolfs, F. L. H., Wosiek, B., Woźniak, K., Wyngaardt, S., and Wysłouch, B. Mon . "Scaling properties in bulk and pT-dependent particle production near midrapidity in relativistic heavy ion collisions". United States. doi:10.1103/physrevc.80.011901. https://www.osti.gov/servlets/purl/1505732.
@article{osti_1505732,
title = {Scaling properties in bulk and pT-dependent particle production near midrapidity in relativistic heavy ion collisions},
author = {Alver, B. and Back, B. B. and Baker, M. D. and Ballintijn, M. and Barton, D. S. and Betts, R. R. and Bindel, R. and Busza, W. and Chai, Z. and Chetluru, V. and García, E. and Gburek, T. and Gulbrandsen, K. and Hamblen, J. and Harnarine, I. and Henderson, C. and Hofman, D. J. and Hollis, R. S. and Hołyński, R. and Holzman, B. and Iordanova, A. and Kane, J. L. and Kulinich, P. and Kuo, C. M. and Li, W. and Lin, W. T. and Loizides, C. and Manly, S. and Mignerey, A. C. and Nouicer, R. and Olszewski, A. and Pak, R. and Reed, C. and Richardson, E. and Roland, C. and Roland, G. and Sagerer, J. and Sedykh, I. and Smith, C. E. and Stankiewicz, M. A. and Steinberg, P. and Stephans, G. S. F. and Sukhanov, A. and Szostak, A. and Tonjes, M. B. and Trzupek, A. and Nieuwenhuizen, G. J. van and Vaurynovich, S. S. and Verdier, R. and Veres, G. and Walters, P. and Wenger, E. and Willhelm, D. and Wolfs, F. L. H. and Wosiek, B. and Woźniak, K. and Wyngaardt, S. and Wysłouch, B.},
abstractNote = {The centrality dependence of the midrapidity charged-particle multiplicity density (|η| < 1) is presented for Au + Au and Cu + Cu collisions at RHIC over a broad range of collision energies. The multiplicity measured in the Cu + Cu system is found to be similar to that measured in the Au + Au system, for an equivalent Npart, with the observed factorization in energy and centrality still persistent in the smaller Cu + Cu system. The extent of the similarities observed for bulk particle production is tested by a comparative analysis of the inclusive transverse momentum distributions for Au + Au and Cu + Cu collisions near midrapidity. It is found that, within the uncertainties of the data, the ratio of yields between the various energies for both Au + Au and Cu + Cu systems are similar and constant with centrality, both in the bulk yields and as a function of pT, up to at least 4 GeV/c. As a result, the effects of multiple nucleon collisions that strongly increase with centrality and energy appear to only play a minor role in bulk and intermediate transverse momentum particle production.},
doi = {10.1103/physrevc.80.011901},
journal = {Physical Review. C, Nuclear Physics},
number = 1,
volume = 80,
place = {United States},
year = {2009},
month = {7}
}

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