Recent results from PHOBOS on particle production at high pT

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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Veröffentlicht in:	European physical journal. C, Particles and fields (Print) Particles and fields (Print), 2009-06, Vol.61 (4), p.575-582
Hauptverfasser:	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:	Artikel
Sprache:	eng
Schlagworte:	Astronomy Astrophysics and Cosmology Elementary Particles Exact sciences and technology Hadrons Heavy Ions Measurement Science and Instrumentation Nuclear Energy Nuclear Physics Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Regular Article - Experimental Physics String Theory The physics of elementary particles and fields
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Zusammenfassung:	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 (Δ η ) and azimuthal angle (Δ φ ) correlations between high transverse momentum charged hadrons ( p T >2.5 GeV/ c ) and all associated charged particles is presented at both short-range (small Δ η ) and long-range (large Δ η ) over a continuous detector acceptance covering −4
ISSN:	1434-6044 1434-6052
DOI:	10.1140/epjc/s10052-009-0911-8