Particle correlation in p+p collision √sNN=200 GeV in PYTHIA

  • We calculated the relative abundances of charge hadron, KS0, Λ and Λ in the near-side and away-side cones correlated with triggered high pT particles in minimum bias in p+p collisions at √sNN=200 GeV in the PYTHIA model. From the quark and gluon jet events in the PYTHIA model, we have found that the particle yields' different splitting. So the di-hadron correlation in the quark jet events and gluon jet events are also presented. And the particle charge dependance of the di-hadron correlation is extracted from the PYTHIA model. The di-hadron plus and di-hadron minus correlations are similar in the near-side (Δφ~0), but in the away-side, the di-hadron minus correlation seems to be lower. The Hadron-KS0 and -Λ+Λ correlations seem to be differet. We have used a double-Gaussian function to fit those correlation functions and compared the fit parameters.
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  • [1] . Adler C, Ahammed Z, Allgower C et al. (STAR Collab.).Phys. Rev. Lett., 2003, 90: 0823022. Adams J, Adler C, Aggarwal M M et al. (STAR Collab.).Phys. Rev. Lett., 2003, 91: 0723043. Adams J, Adler C, Aggarwal M M et al. (STAR Collab.).Nucl. Phys. A, 2005, 757: 1024. Adams J, Adler C, Aggarwal M M et al. (STAR Collab.).Phys. Rev. C, 2006, 73: 0649075. Adams J, Adler C, Aggarwal M M et al. (STAR Collab.).Phys. Rev. C, 2007, 75: 0349016. Sorensen P R. Nucl. Phys. A, 2006, 774: 2477. ZUO J X. arXiv:0710.4203 [nucl-ex]8. Casalderrey-Solana J. arXiv:hep-ph/0701257; Nucl. Phys.A, 2006, 774: 5779. Stocker H, Betz B, Rau P. arXiv:nucl-th/070305410. Armesto N, Salgado C A, Wiedemann U A. Phys. Rev. C,2005, 72: 06491011. Koch V, Majumder A, WANG X N. Phys. Rev. Lett., 2006,96: 17230212. MA G L, ZHANG S, MA Y G et al. Phys. Lett. B, 2006,641: 36213. Pruneau C A, Gavin S, Voloshin S A. arXiv:0711.1991[nucl-ex]14. Sjostrand T. arXiv:hep-ph/9508391; Andersson B,Gustafson G, Ingelman G, Sjostrand T. Phys. Rept., 1983,97: 3115. Andersson B, Mohanty S, Soderberg F. arXiv:hep-ph/021212216. Field R D. Phys. Rev. D, 2002, 65: 094006; Field R D, inSnowmass 2001, arXiv:hep-ph/020119217. Abelev B I, Adams J, Aggarwal M M et al. (STAR Collab.).Phys. Rev. C, 2007, 75: 06490118. LIU H D, XU Z. arXiv:nucl-ex/061003519. Adler S S et al. (PHENIX Collab.). Phys. Rev. Lett., 2006,97: 05230120. ZUO J X, Sorensen P. In preparation
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ZUO Jia-Xu, SORENSEN Paul, CAI Xiang-Zhou, HEINZ Mark and MA Yu-Gang. Particle correlation in p+p collision √sNN=200 GeV in PYTHIA[J]. Chinese Physics C, 2008, 32(S2): 13-16.
ZUO Jia-Xu, SORENSEN Paul, CAI Xiang-Zhou, HEINZ Mark and MA Yu-Gang. Particle correlation in p+p collision √sNN=200 GeV in PYTHIA[J]. Chinese Physics C, 2008, 32(S2): 13-16. shu
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Received: 2008-07-16
Revised: 1900-01-01
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Particle correlation in p+p collision √sNN=200 GeV in PYTHIA

    Corresponding author: ZUO Jia-Xu,

Abstract: We calculated the relative abundances of charge hadron, KS0, Λ and Λ in the near-side and away-side cones correlated with triggered high pT particles in minimum bias in p+p collisions at √sNN=200 GeV in the PYTHIA model. From the quark and gluon jet events in the PYTHIA model, we have found that the particle yields' different splitting. So the di-hadron correlation in the quark jet events and gluon jet events are also presented. And the particle charge dependance of the di-hadron correlation is extracted from the PYTHIA model. The di-hadron plus and di-hadron minus correlations are similar in the near-side (Δφ~0), but in the away-side, the di-hadron minus correlation seems to be lower. The Hadron-KS0 and -Λ+Λ correlations seem to be differet. We have used a double-Gaussian function to fit those correlation functions and compared the fit parameters.

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