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We present the centrality dependent measurement of multiplicity andpseudorapidity distributions of charged particles and photons in Au + Aucollisions at sqrt{s_NN} = 62.4 GeV. The charged particles and photons aremeasured in the pseudorapidity region 2.9 < eta < 3.9 and 2.3 < eta < 3.7,respectively. We have studied the scaling of particle production with thenumber of participating nucleons and the number of binary collisions. Thephoton and charged particle production in the measured pseudorapidity range hasbeen shown to be consistent with energy independent limiting fragmentationbehavior. The photons are observed to follow a centrality independent limitingfragmentation behavior while for the charged particles it is centralitydependent. We have carried out a comparative study of the pseudorapiditydistributions of positively charged hadrons, negatively charged hadrons,photons, pions, net protons in nucleus--nucleus collisions and pseudorapiditydistributions from p+p collisions. From these comparisons we conclude thatbaryons in the inclusive charged particle distribution are responsible for theobserved centrality dependence of limiting fragmentation. The mesons are foundto follow an energy independent behavior of limiting fragmentation while thebehavior of baryons seems to be energy dependent.Comment: 17 pages and 20 figure

physical review. c. nuclear physics/physical review. c, nuclear physics

Multiplicity and pseudorapidity distributions of charged particles and photons at forward pseudorapidity in Au+Au collisons at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msqrt><mml:mrow><mml:msub><mml:mi>s</mml:mi><mml:mrow><mml:mi mathvariant="italic">NN</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>62</mml:mn><mml:mo>.</mml:mo><mml:mn>4</mml:mn></mml:mrow></mml:math>GeV

Multiplicity and pseudorapidity distributions of charged particles and photons at forward pseudorapidity in Au+Au collisons atsNN=62.4GeV