Multiplicity Distribution and Spectra of Negatively Charged Hadrons in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>A</mml:mi><mml:mi>u</mml:mi><mml:mo>+</mml:mo><mml:mi>A</mml:mi><mml:mi>u</mml:mi></mml:math>Collisions at<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msqrt><mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>s</mml:mi></mml:mrow><mml:mrow><mml:mi>NN</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:mrow></mml:msqrt><mml:mspace/><mml:mo>=</mml:mo><mml:mspace/><mml:mn>130</mml:mn><mml:mn/><mml:mi/><mml:mi>GeV</mml:mi></mml:math>
C. AdlerUniversity of Frankfurt, Frankfurt, GermanyZ. AhammedPurdue University, West Lafayette, Indiana 47907C. AllgowerIndiana University, Bloomington, Indiana 47408J. AmonettKent State University, Kent, Ohio 44242B. D. AndersonKent State University, Kent, Ohio 44242M. AndersonUniversity of California, Davis, California 95616G. S. AverichevLaboratory for High Energy (JINR), Dubna, RussiaJ. BalewskiIndiana University, Bloomington, Indiana 47408O. BarannikovaLaboratory for High Energy (JINR), Dubna, RussiaL. S. BarnbyKent State University, Kent, Ohio 44242J. BaudotS. BekeleThe Ohio State University, Columbus, Ohio 43210V. V. BelagaLaboratory for High Energy (JINR), Dubna, RussiaR. BellwiedWayne State University, Detroit, Michigan 48201J. BergerUniversity of Frankfurt, Frankfurt, GermanyH. BichselUniversity of Washington, Seattle, Washington 98195L. C. BlandIndiana University, Bloomington, Indiana 47408C. O. BlythUniversity of Birmingham, Birmingham, United KingdomB. E. BonnerRice University, Houston, Texas 77251V. SinghLawrence Berkeley National Laboratory, Berkeley, California 94720A. BouchamSUBATECH, Nantes, FranceA. V. BrandinMoscow Engineering Physics Institute, Moscow, RussiaX. Z. CaiThe Ohio State University, Columbus, United StatesM. Calderon De La Barca SanchezYale University, New Haven, United StatesCarlos CárdenasPurdue University, West Lafayette, Indiana 47907J. CarrollLawrence Berkeley National Laboratory, Berkeley, California 94720J. Castillo CastellanosSUBATECH, Nantes, FranceM. CastroWayne State University, Detroit, Michigan 48201D. CebraUniversity of California, Davis, California 95616S. ChattopadhyayWayne State University, Detroit, Michigan 48201M. L. ChenBrookhaven National Laboratory, Upton, New York 11973Y. ChenUniversity of California, Los Angeles, California 90095S. ChernenkoLaboratory for High Energy (JINR), Dubna, RussiaM. CherneyCreighton University, Omaha, Nebraska 68178A. ChikanianYale University, New Haven, Connecticut 06520B. ChoiUniversity of Texas, Austin, Texas 78712W. ChristieBrookhaven National Laboratory, Upton, New York 11973J. P. CoffinL. ConinSUBATECH, Nantes, FranceT. M. CormierWayne State University, Detroit, Michigan 48201J. G. CramerUniversity of Washington, Seattle, Washington 98195H. J. CrawfordUniversity of California, Berkeley, California 94720M. DeMelloRice University, Houston, Texas 77251W. S. DengKent State University, Kent, Ohio 44242A. A. DerevschikovInstitute of High Energy Physics, Protvino, RussiaL. DidenkoBrookhaven National Laboratory, Upton, New York 11973J. E. DraperUniversity of California, Davis, California 95616V. B. DuninLaboratory for High Energy (JINR), Dubna, RussiaJ. C. DunlopYale University, New Haven, Connecticut 06520V. EckardtMax-Planck-Institut fr Physik, Munich, GermanyL. G. EfimovLaboratory for High Energy (JINR), Dubna, RussiaВ. ЕмеляновMoscow Engineering Physics Institute, Moscow, RussiaJ. EngelageUniversity of California, Berkeley, California 94720G. EppleyRice University, Houston, Texas 77251B. ErazmusSUBATECH, Nantes, FranceP. FachiniUniversidade de Sao Paulo, Sao Paulo, BrazilE. FinchYale University, New Haven, Connecticut 06520Y. FisyakBrookhaven National Laboratory, Upton, New York 11973D. FlierlUniversity of Frankfurt, Frankfurt, GermanyK. J. FoleyBrookhaven National Laboratory, Upton, New York 11973J. FuLawrence Berkeley National Laboratory, Berkeley, California 94720N. GagunashviliLaboratory for High Energy (JINR), Dubna, RussiaJ. GansYale University, New Haven, Connecticut 06520L. GaudichetSUBATECH, Nantes, FranceM. GermainF. J. M. GeurtsRice University, Houston, Texas 77251V. GhazikhanianUniversity of California, Los Angeles, California 90095Jakub Krzysztof GrabskiWarsaw University of Technology, Warsaw, PolandO. GrachovWayne State University, Detroit, Michigan 48201D. GreinerLawrence Berkeley National Laboratory, Berkeley, California 94720V. GrigorievMoscow Engineering Physics Institute, Moscow, RussiaM. GuedonInstitut de Recherches Subatomiques, Strasbourg, FranceE. GushinMoscow Engineering Physics Institute, Moscow, RussiaT. J. HallmanBrookhaven National Laboratory, Upton, New York 11973D. HardtkeLawrence Berkeley National Laboratory, Berkeley, California 94720J. W. HarrisYale University, New Haven, Connecticut 06520M. HeffnerUniversity of California, Davis, California 95616S. HeppelmannPennsylvania State University, University Park, Pennsylvania 16802T. HerstonPurdue University, West Lafayette, Indiana 47907B. HippolyteInstitut de Recherches Subatomiques, Strasbourg, FranceA. HirschPurdue University, West Lafayette, Indiana 47907E. HjortLawrence Berkeley National Laboratory, Berkeley, California 94720G. W. HoffmannUniversity of Texas, Austin, Texas 78712M. HorsleyYale University, New Haven, Connecticut 06520H. Z. HuangUniversity of California, Los Angeles, California 90095T. J. HumanicThe Ohio State University, Columbus, Ohio 43210Holm Gero HümmlerMax Planck Society, Munich, GermanyG. IgoUniversity of California, Los Angeles, California 90095A. IshiharaUniversity of Texas, Austin, Texas 78712Yu. I. IvanshinParticle Physics Laboratory (JINR), Dubna, RussiaP. JacobsLawrence Berkeley National Laboratory, Berkeley, California 94720W. W. JacobsIndiana University, Bloomington, Indiana 47408M. A. JanikWarsaw University of Technology, Warsaw, PolandI. JohnsonLawrence Berkeley National Laboratory, Berkeley, California 94720Peter G. JonesUniversity of Birmingham, Birmingham, United KingdomE. G. JuddUniversity of California, Berkeley, California 94720M. KanetaLawrence Berkeley National Laboratory, Berkeley, California 94720M. KaplanCarnegie Mellon University, Pittsburgh, Pennsylvania 15213D. KeaneKent State University, Kent, Ohio 44242A. KisielWarsaw University of Technology, Warsaw, Poland
2001lv
ABI
Аннотация
The minimum-bias multiplicity distribution and the transverse momentum and pseudorapidity distributions for central collisions have been measured for negative hadrons ( ${h}^{\ensuremath{-}}$) in $\mathrm{Au}+\mathrm{Au}$ interactions at $\sqrt{{s}_{\mathrm{NN}}}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}130\mathrm{GeV}$. The multiplicity density at midrapidity for the $5%$ most central interactions is ${\mathrm{dN}}_{{h}^{\ensuremath{-}}}/d\ensuremath{\eta}{|}_{\ensuremath{\eta}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}0}\phantom{\rule{0ex}{0ex}}=\phantom{\rule{0ex}{0ex}}280\ifmmode\pm\else\textpm\fi{}1(\mathrm{stat})\ifmmode\pm\else\textpm\fi{}20(\mathrm{syst})$, an increase per participant of $38%$ relative to $p\overline{p}$ collisions at the same energy. The mean transverse momentum is $0.508\ifmmode\pm\else\textpm\fi{}0.012\mathrm{GeV}/c$ and is larger than in central $\mathrm{Pb}+\mathrm{Pb}$ collisions at lower energies. The scaling of the ${h}^{\ensuremath{-}}$ yield per participant is a strong function of ${p}_{\ensuremath{\perp}}$. The pseudorapidity distribution is almost constant within $|\ensuremath{\eta}|<1$.
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