Three-Particle Coincidence of the Long Range Pseudorapidity Correlation in High Energy Nucleus-Nucleus Collisions
B. I. AbelevUniversity of Illinois at Chicago, Chicago, Illinois 60607, USAM. M. AggarwalPanjab University, Chandigarh 160014, IndiaZ. AhammedVariable Energy Cyclotron Centre,A. V. AlakhverdyantsJoint Institute for Nuclear Research, Dubna, 141 980, RussiaB. D. AndersonKent State University, Kent, Ohio 44242, USAD. ArkhipkinBrookhaven National Laboratory, Upton, New York 11973, USAG. S. AverichevJoint Institute for Nuclear Research, Dubna, 141 980, RussiaJ. BalewskiMassachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USAO. BarannikovaUniversity of Illinois at Chicago, Chicago, Illinois 60607, USAL. S. BarnbyUniversity of Birmingham, Birmingham, United KingdomS. BaumgartYale University, New Haven, Connecticut 06520, USAD. R. BeavisBrookhaven National Laboratory, Upton, New York 11973, USAR. BellwiedWayne State University, Detroit, Michigan 48201, USAM. BetancourtMassachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USAR. R. BettsUniversity of Illinois at Chicago, Chicago, Illinois 60607, USAA. BhasinUniversity of Jammu, Jammu 180001, IndiaA. K. BhatiPanjab University, Chandigarh 160014, IndiaH. BichselUniversity of Washington, Seattle, Washington 98195, USAJ. BielčíkCzech Technical University in Prague, FNSPE, Prague, 115 19, Czech RepublicJ. BielčíkováNuclear Physics Institute AS CR, 250 68 R ez /Prague, Czech RepublicB. BiritzUniversity of California, Los Angeles, California 90095, USAL. C. BlandBrookhaven National Laboratory, Upton, New York 11973, USAI. BnzarovJoint Institute for Nuclear Research, Dubna, 141 980, RussiaB. E. BonnerRice University, Houston, Texas 77251, USAJ. BouchetKent State University, Kent, Ohio 44242, USAE. BraidotNIKHEF and Utrecht University, Amsterdam, The NetherlandsA. V. BrandinMoscow Engineering Physics Institute, Moscow RussiaA. BridgemanArgonne National Laboratory, Argonne, Illinois 60439, USAE. BrunaYale University, New Haven, Connecticut 06520, USAS. BueltmannOld Dominion University, Norfolk, Virginia, 23529, USAT. P. BurtonUniversity of Birmingham, Birmingham, United KingdomX. Z. CaiShanghai Institute of Applied Physics, Shanghai 201800, ChinaH. CainesYale University, New Haven, Connecticut 06520, USAM. Calderón de la Barca SánchezUniversity of California, Davis, California 95616, USAO. CatuYale University, New Haven, Connecticut 06520, USAD. CebraUniversity of California, Davis, California 95616, USAR. CendejasUniversity of California, Los Angeles, California 90095, USAM. C. CervantesTexas A&M University, College Station, Texas 77843, USAZ. ChajęckiOhio State University, Columbus, Ohio 43210, USAP. ChaloupkaNuclear Physics Institute AS CR, 250 68 R ez /Prague, Czech RepublicS. ChattopadhyayVariable Energy Cyclotron Centre,H. F. ChenUniversity of Science & Technology of China, Hefei 230026, ChinaJ. H. ChenShanghai Institute of Applied Physics, Shanghai 201800, ChinaJ. Y. ChenShanghai Institute of Applied Physics, Shanghai 201800, ChinaJ. ChengTsinghua University, Beijing 100084, ChinaM. CherneyCreighton University, Omaha, Nebraska 68178, USAA. ChikanianYale University, New Haven, Connecticut 06520, USAK. ChoiPusan National University, Pusan, Republic of KoreaW. ChristieBrookhaven National Laboratory, Upton, New York 11973, USAP. ChungNuclear Physics Institute AS CR, 250 68 R ez /Prague, Czech RepublicR. F. ClarkeTexas A&M University, College Station, Texas 77843, USAM. J. M. CodringtonTexas A&M University, College Station, Texas 77843, USAR. CorlissMassachusetts Institute of Technology, Cambridge, Massachusetts 02139-4307, USAJ. G. CramerUniversity of Washington, Seattle, Washington 98195, USAH. J. CrawfordUniversity of California, Berkeley, California 94720, USAD. DasUniversity of California, Davis, California 95616, USAS. DashInstitute of Physics, Bhubaneswar 751005, IndiaA. Davila LeyvaUniversity of Texas, Austin, Texas 78712, USAL. C. de SilvaWayne State University, Detroit, Michigan 48201, USAR. R. DebbeBrookhaven National Laboratory, Upton, New York 11973, USAT. G. DedovichJoint Institute for Nuclear Research, Dubna, 141 980, RussiaM. DePhillipsBrookhaven National Laboratory, Upton, New York 11973, USAA. A. DerevschikovInstitute of High Energy Physics, Protvino, RussiaR. Derradi de Souza(STAR Collaboration)L. DidenkoUniversidade Estadual de Campinas, Sao Paulo, BrazilP. DjawothoTexas A&M University, College Station, Texas 77843, USAS. DograUniversity of Jammu, Jammu 180001, IndiaX. DongLawrence Berkeley National Laboratory, Berkeley, California 94720, USAJ. L. DrachenbergUniversidade Estadual de Campinas, Sao Paulo, BrazilJ. E. DraperUniversity of California, Davis, California 95616, USAJ. C. Dunlop(STAR Collaboration)M. R. Dutta MazumdarVariable Energy Cyclotron Centre,L. G. Efimov(STAR Collaboration)E. ElhalhuliUniversidade Estadual de Campinas, Sao Paulo, BrazilM. ElnimrWayne State University, Detroit, Michigan 48201, USAJ. EngelageUniversidade Estadual de Campinas, Sao Paulo, BrazilG. EppleyRice University, Houston, Texas 77251, USAB. ErazmusSUBATECH, Nantes, FranceM. Estienne(STAR Collaboration)L. EunPennsylvania State University, University Park, Pennsylvania 16802, USAP. FachiniUniversidade Estadual de Campinas, Sao Paulo, BrazilR. FatemiUniversity of Kentucky, Lexington, Kentucky, 40506-0055, USAJ. Fedorišin(STAR Collaboration)R. G. FerschUniversidade Estadual de Campinas, Sao Paulo, BrazilP. Filip(STAR Collaboration)E. FinchYale University, New Haven, Connecticut 06520, USAV. Fine(STAR Collaboration)Y. Fisyak(STAR Collaboration)C. A. GagliardiUniversidade Estadual de Campinas, Sao Paulo, BrazilD. R. GangadharanUniversidade Estadual de Campinas, Sao Paulo, BrazilM. S. GantiUniversidade Estadual de Campinas, Sao Paulo, BrazilE. García-SolisUniversity of Illinois at Chicago, Chicago, Illinois 60607, USAA. GeromitsosUniversidade Estadual de Campinas, Sao Paulo, BrazilF. J. M. GeurtsUniversidade Estadual de Campinas, Sao Paulo, BrazilV. Ghazikhanian(STAR Collaboration)P. GhoshUniversidade Estadual de Campinas, Sao Paulo, BrazilY. N. GorbunovUniversidade Estadual de Campinas, Sao Paulo, BrazilA. Gordon(STAR Collaboration)O. G. GrebenyukUniversidade Estadual de Campinas, Sao Paulo, BrazilD. GrosnickValparaiso University, Valparaiso, Indiana 46383, USA
ABI
Аннотация
We report the first three-particle coincidence measurement in pseudorapidity ($\ensuremath{\Delta}\ensuremath{\eta}$) between a high transverse momentum (${p}_{\ensuremath{\perp}}$) trigger particle and two lower ${p}_{\ensuremath{\perp}}$ associated particles within azimuth $|\ensuremath{\Delta}\ensuremath{\phi}|<0.7$ in $\sqrt{{s}_{\mathrm{NN}}}=200\text{ }\text{ }\mathrm{GeV}$ $d+\mathrm{Au}$ and $\mathrm{Au}+\mathrm{Au}$ collisions. Charge ordering properties are exploited to separate the jetlike component and the ridge (long range $\ensuremath{\Delta}\ensuremath{\eta}$ correlation). The results indicate that the correlation of ridge particles are uniform not only with respect to the trigger particle but also between themselves event by event in our measured $\ensuremath{\Delta}\ensuremath{\eta}$. In addition, the production of the ridge appears to be uncorrelated to the presence of the narrow jetlike component.
Перевод пока недоступен