Charged pion production in heavy ion collisions at √Snn =17.3 Gev. Comparison with models
Abstract
We present nuclear modification factor as a function of transverse momentum for charged pions, produced in peripheral collisions of lead ions at √Snn =17.3 GeV. Results are presented for positive pions, negative pions and average pion production. Experimental results are compared to models UrQMD2.3, EPOS1.67 and HIJING1.7. Comparative study allow us to conclude that simulation of charged pion production within EPOS1.67 has better agreement with experimental data for this type of collision.
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Michael L., Miller K., Reygers S.J., Sanders P., Steinberg Glauber Modeling in High Energy Nuclear Collisions // Ann.Rev.Nucl.Part.Sci. – 2007. – Vol.57. – P.205; nucl-ex/0701025.
Afanasiev S. et al. The NA49 Large Acceptance Hadron Detector // Nucl.Instrum.Meth. – 1999. – Vol.A430. – P.210-244.
Trubnikov V.C. Rozhdenie zaryazhennykh pionov v stolknoveniyakh tyazhelykh ionov pri energii uskoritelya SPS // The Journal of Kharkiv National University, physical series “Nuclei, Particles, Fields”. – 2012. - №1025. – Iss.4(56). - S.107-110.
Alt C. et. al. (the NA49 Collaboration) Inclusive production of charged pions in p+p collisions at 158 GeV/c beam momentum // Eur. Phys. J. – 2006. – Vol.C45. – P.343-381; arXiv:hep-ex/0510009v1.
Cronin J.W. et al. Production of hadrons at large transverse momentum at 200, 300, and 400 GeV // Phys. Rev. – 1975. – Vol.D11. – P.3105.
Barnafoldi G.G., Papp G, Levai P., Fai G. Cronin Effect at Different Rapidities at RHIC // arXiv:nucl-th/0404012v3.
Bass S.A. et al., Microscopic Models for Ultrarelativistic Heavy Ion Collisions // arXiv:nucl-th/9803035v2 2008.
Xin-Nian Wang, Gyulassy M. HIJING: A Monte Carlo model for multiple jet production in pp, pA, and AA collisions // Phys.Rev. – 1991. – Vol.D 44. – P.3501.
Capella A., Sukhatme U., Tran Thanh Van J. Soft multihadron production from partonic structure and fragmentation function // Z. Physik C Particles and Fields. – 1980. – Vol. 3. – P.329; Ranft J. Hadron production in hadron-nucleus and nucleus-nucleus collisions in the dual Monte-Carlo multichain fragmentation model // Phys. Rev. – 1988. – Vol.D37. – P.1842.
Porteboeuf S., Pierog T., Werner K. Producing Hard Processes Regarding the Complete Event: The EPOS Event Generator // arXiv:1006.2967v1 [hep-ph] 2010.
Ostapchenko S., Pierog T., Werner K., Drescher H.D., Haldik M. Parton-based gribov-regge theory // Phys. Rep. - 2001.– Vol. 350. – P.93-289; arXiv:hep-ph/0007198.
Copyright (c) 2013 V.A. Kizka, A.Yu. Korchin, V.S. Trubnikov
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