Multiparticle production on hydrogen, argon, and xenon targets in a streamer chamber by 200-GeV/<i>c</i>proton and antiproton beams

Marzo, C. De; Palma, M. De; Distante, A.; Favuzzi, C.; Germinario, Giulia; Lavopa, P.; Mäggi, G.; Posa, F.; Ranieri, A.; Selvaggi, G.; Spinelli, P.; Waldner, F.; Białas, A.; Czyż, W.; Eskreys, A.; Eskreys, K.; Fialkowski, K.; Kisielewska, D.; Madeyski, B.; Malecki, Pa.; Olkiewicz, K.; Pawlik, B.; Evans, William Howard; Fry, J. R.; Grant, C.; Houlden, M.; Morton, A.; Muirhead, H.; Shiers, J.; Wong, Sam; Antic, M.; Baker, W.; Coghen, T.; Dengler, F.; Derado, I.; Eckardt, V.; Fent, J.; Freund, P.; Gebauer, H. J.; Kahl, Th.; Kalbach, R. M.; Manz, A.; Polakos, P.; Pretzl, K.; Schmitz, N.; Schouten, Theo E.; Seyboth, P.; Seyerlein, J.; Stopa, P.; Vranić, D.; Wolf, G.; Crijns, F.; Metzger, W. J.; Pols, C.; Spuijbroek, T.

doi:10.1103/physrevd.26.1019

Cited by 133 publications

(31 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is a fixed target experiment and it is noted that for the positive rapidity region there was less than complete separation between pions and protons. We are thus very satisfied with the excellent results we find for negative rapidity, and discrepancies are largely a result of experimental distortion [39]. We describe the model as minimalist because the number of parameters is quite small in comparison to other models.…”

Section: Quark and Gluon Interactions And P -P Collisionssupporting

confidence: 62%

Relativistic heavy-ion collisions in the dynamical string-parton model

et al. 2001

View full text Add to dashboard Cite

We develop and extend the dynamical string parton model. This model, which is based on the salient features of QCD, uses classical Nambu-Gotō strings with the endpoints identified as partons, an invariant string breaking model of the hadronization process, and interactions described as quark-quark interactions. In this work, the original model is extended to include a phenomenological quantization of the mass of the strings, an analytical technique for treating the incident nucleons as a distribution of string configurations determined by the experimentally measured structure function, the inclusion of the gluonic content of the nucleon through the introduction of purely gluonic strings, and the use of a hard parton-parton interaction taken from perturbative QCD combined with a phenomenological soft interaction. The limited number of parameters in the model are adjusted to e + e − and p -p data. Utilizing these parameters, the first calculations of the model for p -A and A-A collisions are presented and found to be in reasonable agreement with a broad set of data. 25.75.+r, 12.38.Mh

show abstract

Section: Quark and Gluon Interactions And P -P Collisionssupporting

confidence: 62%

Relativistic heavy-ion collisions in the dynamical string-parton model

et al. 2001

View full text Add to dashboard Cite

show abstract

“…In addition our result at 158 GeV is also ∼ 20% higher than the fit (dN/dη | max = 2.5 − 0.25 ln s + 0.023 ln 2 s) of the yield obtained by CDF [51] in pp non single diffractive interactions for much higher energies. The isospin effect (∼ 10% among pp, pn and nn interactions [52]) can not account for such a discrepancy as it can be argued also from the fact that our measurement at 158 GeV/nucleon results higher than the one obtained in pp interactions at 200 GeV [53] (dN/dη CM ≈ 1.55 ± 0.04 after conversion from the measured dN/dy). This comparison suggests a steep increase of particle production in central ion-ion collisions between 40 GeV and 158 GeV which cannot be described by a simple energy scaling as observed in nucleon-nucleon collisions.…”

Section: Energy Dependence Of Charged Particle Productionmentioning

confidence: 63%

Scaling of charged particle multiplicity in Pb–Pb collisions at SPS energies

Abreu

Alessandro

Alexa³

et al. 2002

Physics Letters B

View full text Add to dashboard Cite

The charged particle multiplicity distribution dN ch /dη has been measured by the NA50 experiment in Pb-Pb collisions at the CERN SPS. Measurements were done at incident energies of 40 and 158 GeV per nucleon over a broad impact parameter range. The multiplicity distributions are studied as a function of centrality using the number of participating nucleons (N part ), or the number of binary nucleon-nucleon collisions (N coll ). Their values at midrapidity exhibit a power law scaling behaviour given by N 1.00 part and N 0.75 coll at 158 GeV. Compatible results are found for the scaling behaviour at 40 GeV. The width of the dN ch /dη distributions is larger at 158 than at 40 GeV/nucleon and decreases slightly with centrality at both energies. Our results are compared to similar studies performed by other experiments both at the CERN SPS and at RHIC.

show abstract

“…(i) the generalization of the concept of wounded nucleons to that of wounded constituents (originally: quarks [2,13,14,15,16], see also [17]) which allowed to make the idea more flexible,…”

Section: Wounded Nucleons Quarks and Diquarksmentioning

confidence: 99%