Di-hadron correlations with identified leading hadrons in 200 GeV Au + Au and d + Au collisions at STAR
L. AdamczykAGH University of Science and Technology, Cracow 30-059, PolandJ. K. AdkinsUniversity of Kentucky, Lexington, KY, 40506-0055, USAG. AgakishievJoint Institute for Nuclear Research, Dubna, 141 980, RussiaM. M. AggarwalPanjab University, Chandigarh, IndiaZ. AhammedVariable Energy Cyclotron Centre, Kolkata, IndiaI. AlekseevAlikhanov Institute for Theoretical and Experimental Physics, Moscow 117218, RussiaA. AparinJoint Institute for Nuclear Research, Dubna, 141 980, RussiaD. ArkhipkinBrookhaven National Laboratory, Upton, NY 11973, USAE. C. AschenauerBrookhaven National Laboratory, Upton, United StatesG. S. AverichevJoint Institute for Nuclear Research, Dubna, 141 980, RussiaX. BaiUniversity of Illinois at Chicago, Chicago, United StatesV. BairathiNational Institute of Science Education and Research, Bhubaneswar, IndiaA. BanerjeeVariable Energy Cyclotron Centre, Kolkata, IndiaR. BellwiedUniversity of Houston, Houston, United StatesA. BhasinUniversity of Jammu, Jammu, IndiaA. K. BhatiPanjab University, Chandigarh, IndiaP. BhattaraiThe University of Texas at Austin, Austin, United StatesJ. BielčíkCzech Technical University in Prague, FNSPE, Prague, 115 19, Czech RepublicJ. BielčíkováNuclear Physics Institute AS CR, 250 68 e/Prague, Czech RepublicL. C. BlandBrookhaven National Laboratory, Upton, NY 11973, USAI. G. BordyuzhinAlikhanov Institute for Theoretical and Experimental Physics, Moscow 117218, RussiaJ. BouchetKent State University, Kent, OH 44242, USAD. BrandenburgRice University, Houston, TX 77251, USAA. V. BrandinMoscow Engineering Physics Institute, Moscow 115409, RussiaI. BunzarovJoint Institute for Nuclear Research, Dubna, 141 980, RussiaJ. M. ButterworthRice University, Houston, United StatesH. CainesYale University, New Haven, United StatesM. Calderón de la Barca SánchezUniversity of California, Davis, Davis, United StatesJ. M. CampbellThe Ohio State University, Columbus, United StatesD. CebraUniversity of California, Davis, CA 95616, USAM. C. CervantesTexas A&M University, College Station, United StatesI. ChakaberiaBrookhaven National Laboratory, Upton, United StatesP. ChaloupkaCzech Technical University in Prague, Prague, CzechiaZ. ChangTexas A&M University, College Station, United StatesS. ChattopadhyayVariable Energy Cyclotron Centre, Kolkata, IndiaX. ChenInstitute of Modern Physics, Lanzhou 730000, ChinaC. H. ChengJ. ChengTsinghua University, Beijing, ChinaM. CherneyCreighton University, Omaha, NE 68178, USAW. ChristieBrookhaven National Laboratory, Upton, NY 11973, USAG. ContinLawrence Berkeley National Laboratory, Berkeley, CA 94720, USAH. J. CrawfordUniversity of California, Berkeley, CA 94720, USAS. DasInstitute of Physics, Bhubaneswar 751005, IndiaL. C. de SilvaCreighton University, Omaha, NE 68178, USAR. R. DebbeBrookhaven National Laboratory, Upton, NY 11973, USAT. G. DedovichJoint Institute for Nuclear Research, Dubna, 141 980, RussiaJ. DengShandong University, Jinan, Shandong 250100, ChinaA. A. DerevschikovInstitute of High Energy Physics, Protvino 142281, Russia afB. Di RuzzaBrookhaven National Laboratory, Upton, NY 11973, USAL. DidenkoBrookhaven National Laboratory, Upton, NY 11973, USAC. DilksPennsylvania State University, University Park, PA 16802, USAX. DongLawrence Berkeley National Laboratory, Berkeley, CA 94720, USAJ. L. DrachenbergPanjab University, Chandigarh 160014, IndiaJ. E. DraperUniversity of California, Davis, CA 95616, USAC. M. DuInstitute of Modern Physics, Lanzhou 730000, ChinaL. E. DunkelbergerUniversity of California, Los Angeles, CA 90095, USAJ. C. DunlopBrookhaven National Laboratory, Upton, NY 11973, USAL. G. EfimovJoint Institute for Nuclear Research, Dubna, 141 980, RussiaJ. EngelageUniversity of California, Berkeley, Berkeley, United StatesG. EppleyRice University, Houston, United StatesR. EshaUniversity of California, Los Angeles, CA 90095, USAO. EvdokimovUniversity of Illinois at Chicago, Chicago, IL 60607, USAO. EyserBrookhaven National Laboratory, Upton, NY 11973, USAR. FatemiUniversity of Kentucky, Lexington, KY, 40506-0055, USAS. FazioBrookhaven National Laboratory, Upton, NY 11973, USAP. FedericNuclear Physics Institute AS CR, 250 68 e/Prague, Czech RepublicJ. FedorišinJoint Institute for Nuclear Research, Dubna, 141 980, RussiaZ. FengCentral China Normal University (HZNU), Wuhan 430079, ChinaP. FilipJoint Institute for Nuclear Research, Dubna, 141 980, RussiaY. FisyakBrookhaven National Laboratory, Upton, NY 11973, USAC. E. FloresUniversity of California, Davis, CA 95616, USAŁ. FulekAGH University of Krakow, Krakow, PolandC. A. GagliardiTexas A&M University, College Station, United StatesD. GarandPurdue University West Lafayette, West Lafayette, United StatesF. J. M. GeurtsRice University, Houston, TX 77251, USAS. M. GibsonValparaiso University, Valparaiso, United StatesM. GirardWarsaw University of Technology, Warsaw, PolandL. GreinerLawrence Berkeley National Laboratory, Berkeley, CA 94720, USAD. GrosnickValparaiso University, Valparaiso, United StatesD. S. GunarathneTemple University, Philadelphia, United StatesY. GuoUniversity of Science and Technology of China, Hefei, ChinaSourendu GuptaUniversity of Jammu, Jammu, IndiaA. GuptaUniversity of Jammu, Jammu, IndiaW. GurynBrookhaven National Laboratory, Upton, NY 11973, USAA. I. HamadKent State University, Kent, OH 44242, USAA. HamedTexas A&M University, College Station, United StatesM. R. HaqueNational Institute of Science Education and Research, Bhubaneswar 751005, IndiaJ. W. HarrisYale University, New Haven, CT 06520, USAL. HePurdue University West Lafayette, West Lafayette, United StatesS. HeppelmannBrookhaven National Laboratory, Upton, NY 11973, USAA. HirschThe University of Texas at Austin, Austin, United StatesG.W. HoffmannUniversity of Illinois at Chicago, Chicago, United StatesD.J. HofmanUniversity of Illinois at Chicago, Chicago, IL 60607, USAS. HorvatBrookhaven National Laboratory, Upton, United StatesT. HuangBrookhaven National Laboratory, Upton, NY 11973, USAB. HuangUniversity of Illinois at Chicago, Chicago, IL 60607, USAH.Z. HuangUniversity of California, Los Angeles, CA 90095, USAX. HuangCentral China Normal University, Wuhan, ChinaPatrick HuckCentral China Normal University (HZNU), Wuhan 430079, China
ABI
Abstract
The STAR Collaborationpresents for the first time two-dimensional di-hadron correlations with identified leading hadrons in 200 GeV central Au+Au and minimum-bias d+Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au + Au data with respect to the d + Au reference and the absence of such an enhancement for leading non-pions (protons and kaons) are discussed within the context of a quark recombination scenario. The correlated yield at large angles, specifically in the ridge region, is found to be significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization.
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