Abstract
The φ meson yield, rapidity and transverse mass distributions in p-p and Pb-Pb collisions at 158 A GeV were studied by the hadron-string cascade model, LUCIAE. By adjusting the width parameter in q\(\bar q\) Gaussian like transverse momentum distribution in string fragmentation to fit the NA49 data of φ meson transverse mass distribution in p-p collisions, the obtained φ meson rapidity distribution in p-p collisions, the rapidity and transverse mass distributions in Pb-Pb collisions, and the φ meson enhancement factor in Pb-Pb relative to p-p collisions were compatible with corresponding NA49 data, which might be attributed to the collective effect in gluon emission of string and the reduction of strange quark suppression mechanisms involved in the LUCIAE model
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References
Rafelski, J., Hagedom, R., From hadron gas to quark matter, in Statistical Mechanics of Quarks and Hadrons (ed. Satz, H.), Amsterdam: North Holland, 1981, 253–272.
Tai, A., Sa, B. H., Increase of effective string tension and production of strange particles, Physics Letters, B, 1997, 409: 393–397.
Bartke, J., Bialkowska, H., Bock, R. et al., NA35 Collab, Neutral strange particle production in sulphur-sulphur and proton-sulphur collisions at 200 GeV/nucleon, Zeitschrift fur Physics, C, 1990, 48: 191–200.
Antinori, F., Bakke, H., Beusch, W. et al., WA97 Collab, Strangeness enhancement at midrapidity in Pb-Pb collisions at 158 A GeV/c: A comparison with VENUS and RQMD models, Europe Physics Journal, C, 1999,11: 79–88.
Afanasiev, S. V., Anticic, T., Bachler, J. et al., NA49 Collab, Production of φ -mesons in p+p, p+Pb and central Pb+Pb collisions at Ebeam=158A GeV, Physics Letters, B, 2000,491: 59–66.
Antinori, F., Bakke, H., Beusch, W. et al., WA97 Collab, production of strange and multistrange hadrons in nucleus-nucleus collisions at the SPS, Nuclear Physics, A, 1999, 661: 130–139.
Sa, B. H., Tai, A., An event generator for the firecracker model and the rescattering in high energy pA and AA collision LUCIAE version 2.0, Computer Physics Communications, 1995, 90: 121–40.
Sa, B. H., Tai, A., An event generator for the firecracker model and the rescattering in high energy pA and AA collision LUCIAE version 3.0, Computer Physics Communications, 1999, 116: 353–365.
Tai, A., Sa, B. H., Production of minijets (gluons) and strangeness enhancement in pA and AA collisions at relativistic energies, Physics Review, C, 1998, 57: 261–265.
Sa, B. H., Tai, A., Strange antibaryon production data and reduction of strangeness suppression in sulphur-nucleus collisions at 200 A GeV, Physics Letters, B, 1997, 399: 29–34.
Sa, B. H., Faessler, A., Fuchs, C. et al., Enhancement of φ mesons in p+Pb and Pb+Pb collisions at 158 A GeV/c, Physics Letters, B, 2001, 507: 104–108.
Sa, B. H., Wang, Z. Q., Zhang, X. Z. et al., Systematic behavior of K/π ratio in relativistic nucleus-nucleus collisions, Physics Review, C, 1993,48: 2995–2998.
Andersson, B., High pt gluon emission from collective string interactions in high energy heavy ion collisions, Physics Letters, B, 1991,256: 337–340.
Andersson, B., Tai, A., The firecracker model, a possible collective effect in high energy heavy-ion collisions, Zeitschrift fur Physics, C, 1996,71: 155–161.
Rossi, A. M., Vannini, G., Bussiere, A. et al., Experimental study of the energy dependence in proton-proton inclusive reactions, Nuclear Physics, B, 1975, 84: 269–305.
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Xiaorong, W., Benhao, S., Daimei, Z. et al. Enhancement of φ meson production in p-p and Pb-Pb collisions at SPS energy. Sci. China Ser. A-Math. 45, 1582–1587 (2002). https://doi.org/10.1360/02ys9170
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DOI: https://doi.org/10.1360/02ys9170