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Effect of hard processes on momentum correlations in pp and p(anti)p collisions

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Identyfikatory
Warianty tytułu
Konferencja
Proceedings of the 18th International conference on Nucleus-Nucleus Collisions QUARK MATTER 2005, 4-9 August, 2005, Budapest, Hungary
Języki publikacji
EN
Abstrakty
EN
The HBT radii extracted in pp and pp collisions at SPS and Tevatron show a clear correlation with the charged particle rapidity density. We propose to explain the correlation using a simple model where the distance from the initial hard parton-parton scattering to the hadronization point depends on the energy of the partons emitted. Since the particle multiplicity is correlated with the mean energy of the partons produced we can explain the experimental observations without invoking scenarios that assume a thermal fireball. The model has been applied with success to the existing experimental data both in the magnitude and the intensity of the correlation. The model has also been extended to pp collisions at the LHC energy of 14 TeV. The possibilities of a better insight into the string spatial development using 3D HBT analysis are discussed.
Słowa kluczowe
Czasopismo
Rocznik
Strony
83--87
Opis fizyczny
Bibliogr. 11 poz., rys.
Twórcy
autor
  • CERN, CH-1211 Geneva 23, Switzerland and Warsaw University of Technology, Faculty of Physics, 75 Koszykowa Str., 00-662 Warsaw, Poland, Tel.: +48 22 660 73 43, Fax: +48 22 628 21 71, Piotr.Skowronski@cern.ch
Bibliografia
  • 1. Alexopoulos T, Allen C, Anderson EW et al. (1993)A study of source size in p anti-p collisions at s**(1/2) =1.8-TeV using pion interferometry. Phys Rev D 48:1931?1942
  • 2. Buschbeck B, Eggers HC (2001) Multiplicity dependence of Bose-Einstein correlations in antiproton-proton reactions: a discussion of possible origins. Nucl Phys B 92;Suppl:235?246
  • 3. Dokshitzer YL, Khoze VA, Mueller VA, Troyan ST(1991) Basics of perturbative QCD. Editions Frontieres,Gif-sur-Yvette
  • 4. Gutay L et al. (E-735 Collaboration) (2003) Experimental evidence for hadron deconfinement in p-pbar collisions at centre-of-mass energy of 1.8 TeV in the FNAL C0 collider. eConf C030626:FRAP20 [APS arXiv:hep-ex/0309036]
  • 5. Kopeliovich BZ (1990) Are high-energy quarks absorbed in nuclear matter? Phys Lett B 243:141?143
  • 6. Moggi N et al. (CDF Collaboration) (2004) The underlying event at CDF. In: 12th Int Workshop on Deep Inelastic Scattering (DIS 2004), 14?18 April 2004, Strbske Pleso, Slovakia. FERMILAB-CONF-04-131-E
  • 7. Paić P, Skowronski PK, Tomasik B (2004) Effect of hard processes on momentum correlations. Nukleonika 49;Suppl 2:s89?s94
  • 8. Sjöstrand T, Edén P, Friberg C et al. (2001) High-energyphysics event generation with PYTHIA 6.1. Comput Phys Commun 135:238?259
  • 9. UA1 Collaboration (1989) Bose-Einstein correlations in anti-p p interactions at s**(1/2) = 0.2 TeV to 0.9-TeV.Phys Lett B 226:410?416
  • 10. Wang XN (2004) Why the observed jet quenching at RHIC is due to parton energy loss. Phys Lett B 579:299?308
  • 11. Wiedemann UA (2004) Theoretical overview QM’04.J Phys G 30:S649?S657
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BUJ6-0004-0054
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