Net charge fluctuations in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mtext>Au</mml:mtext><mml:mo>+</mml:mo><mml:mtext>Au</mml:mtext></mml:mrow></mml:math>collisions 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>N</mml:mi><mml:mi>N</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:msqrt><mml:mo>=</mml:mo><mml:mn>130</mml:mn><mml:mspace width="0.3em"/><mml:mtext>GeV</mml:mtext></mml:mrow></mml:math>
J. R. AdamsUniversity of Birmingham, Birmingham, United KingdomC. AdlerUniversity of Frankfurt, Frankfurt, GermanyM. M. AggarwalPanjab University, Chandigarh 160014, IndiaZ. AhammedPurdue University, West Lafayette, Indiana 47907, USAJ. AmonettKent State University, Kent, Ohio 44242, USAB. D. AndersonKent State University, Kent, Ohio 44242, USAM. AndersonUniversity of California, Davis, California 95616, USAD. ArkhipkinParticle Physics Laboratory (JINR), Dubna, RussiaG. S. AverichevLaboratory for High Energy (JINR), Dubna, RussiaS. K. BadyalUniversity of Jammu, Jammu 180001, IndiaJ. BalewskiIndiana University, Bloomington, Indiana 47408, USAO. BarannikovaLaboratory for High Energy (JINR), Dubna, RussiaL. S. BarnbyKent State University, Kent, Ohio 44242, USAJ. BaudotS. BekeleOhio State University, Columbus, Ohio 43210, USAV. V. BelagaLaboratory for High Energy (JINR), Dubna, RussiaR. BellwiedWayne State University, Detroit, Michigan 48201, USAJ. BergerUniversity of Frankfurt, Frankfurt, GermanyB. I. BezverkhnyYale University, New Haven, Connecticut 06520, USAS. BhardwajUniversity of Rajasthan, Jaipur 302004, IndiaP. BhaskarVariable Energy Cyclotron Centre, Kolkata 700064, IndiaA. K. BhatiPanjab University, Chandigarh 160014, IndiaH. BichselUniversity of Washington, Seattle, Washington 98195, USAA. BillmeierWayne State University, Detroit, Michigan 48201, USAL. C. BlandBrookhaven National Laboratory, Upton, New York 11973, USAC. O. BlythUniversity of Birmingham, Birmingham, United KingdomB. E. BonnerRice University, Houston, Texas 77251, USAM. BotjeNIKHEF, Amsterdam, The NetherlandsA. BouchamSUBATECH, Nantes, FranceA. V. BrandinMoscow Engineering Physics Institute, Moscow RussiaA. BravarBrookhaven National Laboratory, Upton, New York 11973, USAR. V. CadmanBrookhaven National Laboratory, Upton, New York 11973, USAX. Z. CaiShanghai Institute of Nuclear Research, Shanghai 201800, People’s Republic of ChinaM. Calderon De La Barca SanchezBrookhaven National Laboratory, Upton, New York 11973, USACarlos CárdenasPurdue University, West Lafayette, Indiana 47907, USAJ. T. CarrollLawrence Berkeley National Laboratory, Berkeley, California 94720, USAJ. Castillo CastellanosLawrence Berkeley National Laboratory, Berkeley, California 94720, USAM. CastroWayne State University, Detroit, Michigan 48201, USAD. CebraUniversity of California, Davis, California 95616, USAP. ChaloupkaNuclear Physics Institute AS CR, Rež/Prague, Czech RepublicS. ChattopadhyayVariable Energy Cyclotron Centre, Kolkata 700064, IndiaH. F. ChenUniversity of Science and Technology of China, Anhui 230027, ChinaY. ChenUniversity of California, Los Angeles, California 90095, USAS. ChernenkoLaboratory for High Energy (JINR), Dubna, RussiaM. CherneyCreighton University, Omaha, Nebraska 68178, USAA. ChikanianYale University, New Haven, Connecticut 06520, USAB. ChoiUniversity of Texas, Austin, Texas 78712, USAW. ChristieBrookhaven National Laboratory, Upton, New York 11973, USAJ. P. CoffinT. M. CormierWayne State University, Detroit, Michigan 48201, USAJ. G. CramerUniversity of Washington, Seattle, Washington 98195, USAH. J. CrawfordUniversity of California, Berkeley, California 94720, USAD. DasVariable Energy Cyclotron Centre, Kolkata 700064, IndiaS. DasVariable Energy Cyclotron Centre, Kolkata 700064, IndiaA. A. DerevschikovInstitute of High Energy Physics, Protvino, RussiaL. DidenkoBrookhaven National Laboratory, Upton, New York 11973, USAT. DietelUniversity of Frankfurt, Frankfurt, GermanyX. DongLawrence Berkeley National Laboratory, Berkeley, California 94720, USAJ. E. DraperUniversity of California, Davis, California 95616, USAFan DuYale University, New Haven, Connecticut 06520, USAA. K. DubeyInsitute of Physics, Bhubaneswar 751005, IndiaV. B. DuninLaboratory for High Energy (JINR), Dubna, RussiaJ. C. DunlopBrookhaven National Laboratory, Upton, New York 11973, USAM. R. Dutta MajumdarVariable Energy Cyclotron Centre, Kolkata 700064, IndiaV. EckardtMax-Planck-Institut fuer Physik, Munich, GermanyL. G. EfimovLaboratory for High Energy (JINR), Dubna, RussiaВ. ЕмеляновMoscow Engineering Physics Institute, Moscow RussiaJ. EngelageUniversity of California, Berkeley, California 94720, USAG. EppleyRice University, Houston, Texas 77251, USAB. ErazmusSUBATECH, Nantes, FranceP. FachiniBrookhaven National Laboratory, Upton, New York 11973, USAV. FaineBrookhaven National Laboratory, Upton, New York 11973, USAJ. FaivreR. FatemiIndiana University, Bloomington, Indiana 47408, USAK. FilimonovLawrence Berkeley National Laboratory, Berkeley, California 94720, USAP. FilipNuclear Physics Institute AS CR, Rež/Prague, Czech RepublicE. FinchYale University, New Haven, Connecticut 06520, USAY. FisyakBrookhaven National Laboratory, Upton, New York 11973, USAD. FlierlUniversity of Frankfurt, Frankfurt, GermanyK. J. FoleyBrookhaven National Laboratory, Upton, New York 11973, USAJ. FuInstitute of Particle Physics, CCNU (HZNU), Wuhan 430079, ChinaC. A. GagliardiTexas A and M, College Station, Texas 77843, USAM. S. GantiVariable Energy Cyclotron Centre, Kolkata 700064, IndiaT. D. GutierrezUniversity of California, Davis, California 95616, USAN. GagunashviliLaboratory for High Energy (JINR), Dubna, RussiaJ. GansYale University, New Haven, Connecticut 06520, USAL. GaudichetSUBATECH, Nantes, FranceM. GermainF. J. M. GeurtsRice University, Houston, Texas 77251, USAV. GhazikhanianUniversity of California, Los Angeles, California 90095, USAP. GhoshVariable Energy Cyclotron Centre, Kolkata 700064, IndiaJ. E. GonzalezUniversity of California, Los Angeles, California 90095, USAO. GrachovWayne State University, Detroit, Michigan 48201, USAV. GrigorievMoscow Engineering Physics Institute, Moscow RussiaS. GronstalCreighton University, Omaha, Nebraska 68178, USAD. GrosnickValparaiso University, Valparaiso, Indiana 46383, USAM. GuedonS. M. GuertinUniversity of California, Los Angeles, California 90095, USAA. GuptaUniversity of Jammu, Jammu 180001, India
2003lv
ABI
Аннотация
We present the results of charged particle fluctuations measurements in $\text{Au}+\text{Au}$ collisions at $\sqrt{{s}_{NN}}=130\phantom{\rule{0.3em}{0ex}}\text{GeV}$ using the STAR detector. Dynamical fluctuations measurements are presented for inclusive charged particle multiplicities as well as for identified charged pions, kaons, and protons. The net charge dynamical fluctuations are found to be large and negative providing clear evidence that positive and negative charged particle production is correlated within the pseudorapidity range investigated. Correlations are smaller than expected based on model-dependent predictions for a resonance gas or a quark-gluon gas which undergoes fast hadronization and freeze-out. Qualitative agreement is found with comparable scaled $p+p$ measurements and a heavy ion jet interaction generation model calculation based on independent particle collisions, although a small deviation from the $1∕N$ scaling dependence expected from this model is observed.
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