Evidence from<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>d</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">A</mml:mi><mml:mi mathvariant="normal">u</mml:mi></mml:math>Measurements for Final-State Suppression of High-<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>p</mml:mi><mml:mi>T</mml:mi></mml:msub></mml:math>Hadrons in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="normal">A</mml:mi><mml:mi mathvariant="normal">u</mml:mi><mml:mo>+</mml:mo><mml:mi mathvariant="normal">A</mml:mi><mml:mi mathvariant="normal">u</mml:mi></mml:math>Collisions at RHIC
J. R. AdamsUniversity of Birmingham, Birmingham, United KingdomC. AdlerGoethe University Frankfurt, Frankfurt am Main, GermanyM. M. AggarwalPanjab University, Chandigarh, IndiaZ. AhammedPurdue University West Lafayette, West Lafayette, United StatesJ. AmonettKent State University, Kent, United StatesB. D. AndersonKent State University, Kent, United StatesM. AndersonUniversity of California, Davis, Davis, United StatesD. ArkhipkinJoint Institute for Nuclear Research, Dubna, RussiaG. S. AverichevJoint Institute for Nuclear Research, Dubna, RussiaS.K. BadyalUniversity of Jammu, Jammu, IndiaJ. BalewskiIndiana University, Bloomington, United StatesO. BarannikovaPurdue University West Lafayette, West Lafayette, United StatesL. S. BarnbyKent State University, Kent, United StatesJ. BaudotS. BekeleThe Ohio State University, Columbus, United StatesV. V. BelagaJoint Institute for Nuclear Research, Dubna, RussiaR. BellwiedWayne State University, Detroit, United StatesJ. BergerGoethe University Frankfurt, Frankfurt am Main, GermanyB. I. BezverkhnyYale University, New Haven, United StatesS. BhardwajUniversity of Rajasthan, Jaipur, IndiaP. BhaskarVariable Energy Cyclotron Centre, Kolkata, IndiaA. K. BhatiPanjab University, Chandigarh, IndiaH. BichselUniversity of Washington, Seattle, United StatesA. BillmeierWayne State University, Detroit, United StatesL. C. BlandBrookhaven National Laboratory, Upton, United StatesC. O. BlythUniversity of Birmingham, Birmingham, United KingdomB. E. BonnerRice University, Houston, United StatesM. BotjeNIKHEF, Amsterdam, The NetherlandsA. BouchamSUBATECH, Nantes, FranceA. V. BrandinMoscow Engineering Physics Institute, Moscow, RussiaA. BravarBrookhaven National Laboratory, Upton, United StatesR. V. CadmanArgonne National Laboratory, Lemont, United StatesX. Z. CaiAcademia Sinica, Taipei, TaiwanM. Calderon De La Barca SanchezBrookhaven National Laboratory, Upton, United StatesJ. T. CarrollLawrence Berkeley National Laboratory, Berkeley, United StatesJ. Castillo CastellanosLawrence Berkeley National Laboratory, Berkeley, United StatesM. CastroWayne State University, Detroit, United StatesD. CebraUniversity of California, Davis, Davis, United StatesP. ChaloupkaCzech Academy of Sciences, Prague, CzechiaS. ChattopadhyayVariable Energy Cyclotron Centre, Kolkata, IndiaH. F. ChenUniversity of Science and Technology of China, Hefei, ChinaY. ChenUniversity of California, Los Angeles, Los Angeles, United StatesS. ChernenkoJoint Institute for Nuclear Research, Dubna, RussiaM. CherneyCreighton University, Omaha, United StatesA. ChikanianYale University, New Haven, United StatesB. ChoiThe University of Texas at Austin, Austin, United StatesW. ChristieBrookhaven National Laboratory, Upton, United StatesJ. P. CoffinT. M. CormierWayne State University, Detroit, United StatesJ. G. CramerUniversity of Washington, Seattle, United StatesH. J. CrawfordUniversity of California, Berkeley, Berkeley, United StatesD. DasVariable Energy Cyclotron Centre, Kolkata, IndiaS. DasVariable Energy Cyclotron Centre, Kolkata, IndiaA. A. DerevschikovInstitute of High Energy Physics, Protvino, RussiaL. DidenkoBrookhaven National Laboratory, Upton, United StatesT. DietelGoethe University Frankfurt, Frankfurt am Main, GermanyX. DongUniversity of Science and Technology of China, Hefei, ChinaJ. E. DraperUniversity of California, Davis, Davis, United StatesFan DuYale University, New Haven, United StatesA. K. DubeyInstitute of Physics, Bhubaneshwar, Bhubaneswar, IndiaV. B. DuninJoint Institute for Nuclear Research, Dubna, RussiaJ. C. DunlopBrookhaven National Laboratory, Upton, United StatesM. R. Dutta MajumdarVariable Energy Cyclotron Centre, Kolkata, IndiaV. EckardtMax Planck Society, Munich, GermanyL. G. EfimovJoint Institute for Nuclear Research, Dubna, RussiaВ. ЕмеляновMoscow Engineering Physics Institute, Moscow, RussiaJ. EngelageUniversity of California, Berkeley, Berkeley, United StatesG. EppleyRice University, Houston, United StatesB. ErazmusSUBATECH, Nantes, FranceP. FachiniBrookhaven National Laboratory, Upton, United StatesV. FaineBrookhaven National Laboratory, Upton, United StatesJ. FaivreR. FatemiIndiana University, Bloomington, United StatesK. FilimonovLawrence Berkeley National Laboratory, Berkeley, United StatesP. FilipCzech Academy of Sciences, Prague, CzechiaE. FinchYale University, New Haven, United StatesY. FisyakBrookhaven National Laboratory, Upton, United StatesD. FlierlGoethe University Frankfurt, Frankfurt am Main, GermanyK. J. FoleyBrookhaven National Laboratory, Upton, United StatesJ. FuCentral China Normal University, Wuhan, ChinaC. A. GagliardiTexas A&M University, College Station, United StatesM. S. GantiVariable Energy Cyclotron Centre, Kolkata, IndiaN. GagunashviliJoint Institute for Nuclear Research, Dubna, RussiaJ. GansYale University, New Haven, United StatesL. GaudichetSUBATECH, Nantes, FranceM. GermainF. J. M. GeurtsRice University, Houston, United StatesV. GhazikhanianUniversity of California, Los Angeles, Los Angeles, United StatesP. GhoshVariable Energy Cyclotron Centre, Kolkata, IndiaJ. E. GonzalezUniversity of California, Los Angeles, Los Angeles, United StatesO. GrachovWayne State University, Detroit, United StatesV. GrigorievMoscow Engineering Physics Institute, Moscow, RussiaS. GronstalCreighton University, Omaha, United StatesD. GrosnickValparaiso University, Valparaiso, United StatesM. GuedonS. M. GuertinUniversity of California, Los Angeles, Los Angeles, United StatesA. GuptaUniversity of Jammu, Jammu, IndiaE. GushinMoscow Engineering Physics Institute, Moscow, RussiaT. D. GutierrezUniversity of California, Davis, Davis, United States
2003lv
ABI
Аннотация
We report measurements of single-particle inclusive spectra and two-particle azimuthal distributions of charged hadrons at high transverse momentum (high ${p}_{T}$) in minimum bias and central $d+\mathrm{A}\mathrm{u}$ collisions at $\sqrt{{s}_{NN}}=200\text{ }\text{ }\mathrm{G}\mathrm{e}\mathrm{V}$. The inclusive yield is enhanced in $d+\mathrm{A}\mathrm{u}$ collisions relative to binary-scaled $p+p$ collisions, while the two-particle azimuthal distributions are very similar to those observed in $p+p$ collisions. These results demonstrate that the strong suppression of the inclusive yield and back-to-back correlations at high ${p}_{T}$ previously observed in central $\mathrm{A}\mathrm{u}+\mathrm{A}\mathrm{u}$ collisions are due to final-state interactions with the dense medium generated in such collisions.
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