Recent results from PHOBOS on particle production at high p T

A selection of experimental results from the PHOBOS Collaboration relevant for probing high-energy nuclear collisions with high transverse momentum particles is presented. The inclusive yields of charged particles and comparisons between nuclear and elementary collisions already reveal a large amoun...

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Bibliographic Details
Published in:The European physical journal. C, Particles and fields Particles and fields, 2009-06, Vol.61 (4), p.575-582
Main Authors: Alver, B., Back, B. B., Baker, M. D., Ballintijn, M., Barton, D. S., Betts, R. R., Bickley, A. A., Bindel, R., Busza, W., Carroll, A., Chai, Z., Chetluru, V., Decowski, M. P., García, E., Gburek, T., George, N., Gulbrandsen, K., Halliwell, C., Hamblen, J., Harnarine, I., Hauer, M., Henderson, C., Hofman, D. J., Hollis, R. S., Holyński, R., Holzman, B., Iordanova, A., Johnson, E., Kane, J. L., Khan, N., 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., Seals, H., Sedykh, I., Smith, C. E., Stankiewicz, M. A., Steinberg, P., Stephans, G. S. F., Sukhanov, A., Szostak, A., Tonjes, M. B., Trzupek, A., Vale, C., van Nieuwenhuizen, G. J., Vaurynovich, S. S., Verdier, R., Veres, G. I., Walters, P., Wenger, E., Willhelm, D., Wolfs, F. L. H., Wosiek, B., Woźniak, K., Wyngaardt, S., Wysłouch, B.
Format: Article
Language:English
Subjects:
Atomic collisions
Charged particles
Collaboration
Energy dissipation
Energy measurement
Hadrons
Heavy ions
Ionic collisions
Longitude
Particle production
Partons
Phobos
Transverse momentum
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Summary:A selection of experimental results from the PHOBOS Collaboration relevant for probing high-energy nuclear collisions with high transverse momentum particles is presented. The inclusive yields of charged particles and comparisons between nuclear and elementary collisions already reveal a large amount of parton energy loss in the hot and dense medium created in heavy ion collisions. Remarkable scaling and factorization features are observed, unifying the data taken at various collision energies, centralities and nuclear sizes. To further analyze the nature of the energy loss, a measurement of pseudorapidity (Δη) and azimuthal angle (Δφ) correlations between high transverse momentum charged hadrons (pT>2.5 GeV/c) and all associated charged particles is presented at both short-range (small Δη) and long-range (large Δη) over a continuous detector acceptance covering −4
ISSN:1434-6044
1434-6052
DOI:10.1140/epjc/s10052-009-0911-8