Strangeness measurements with the PHOBOS experiment
| Autor: | A. Sukhanov, M. Hauer, M. P. Decowski, P. Kulinich, Chia-Ming Kuo, W. T. Lin, R. Holynski, Wit Busza, D. S. Barton, Bolek Wyslouch, A. A. Bickley, Andrzej Olszewski, George Stephans, M. Ballintijn, Marguerite Tonjes, Gabor Istvan Veres, F. L. H. Wolfs, Z. Chai, I. Sedykh, Peter Steinberg, H. Seals, J. Hamblen, J. L. Kane, S. Manly, Krzysztof Woźniak, R. S. Hollis, E. Johnson, C. Reed, A. S. Carroll, R. Verdier, G. Van Nieuwenhuizen, K. Gulbrandsen, J. Sagerer, B. B. Back, T. Gburek, Alice Mignerey, R. Bindel, C. E. Smith, Burt Holzman, Edward Allen Wenger, N. Khan, A. Iordanova, E. García, David Jonathan Hofman, C. Halliwell, Barbara Wosiek, N. George, C. Vale, Gunther Roland, S. S. Vaurynovich, R. Pak, M. D. Baker, M. A. Stankiewicz, Christof Roland, Rachid Nouicer, Adam Trzupek, Russell Richard Betts, Conor Henderson |
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| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Journal of Physics G: Nuclear and Particle Physics. 32:S69-S76 |
| ISSN: | 1361-6471 0954-3899 |
| DOI: | 10.1088/0954-3899/32/12/s08 |
| Popis: | Recent results on identified particle production from the PHOBOS experiment at the relativistic heavy-ion collider (RHIC) are summarized. Transverse momentum spectra of pions, kaons, protons and antiprotons from Au+Au collisions at s NN = 62.4 GeV are presented close to mid-rapidity. Baryons have been found to have substantially harder transverse momentum spectra than mesons. The p/π + ratio reaches unity at high p T , which fits into a smooth trend together with measurements at lower and higher collision energies. At very low transverse momenta no significant excess of particle yield was found, compared to extrapolations from higher p T . The net proton yield at mid-rapidity appears to be proportional to the number of participant nucleons in Au+Au collisions. The PHOBOS acceptance and mass resolution for the 0 meson at low p T were studied in detail. |
| Databáze: | OpenAIRE |
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