The proton–Ω correlation function in Au + Au collisions at s NN = 200 GeV
J. AdamCreighton University, Omaha, NE 68178L. AdamczykAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. R. AdamsOhio State University, Columbus, OH 43210J. K. AdkinsUniversity of Kentucky, Lexington, KY 40506-0055G. AgakishievJoint Institute for Nuclear Research, Dubna 141 980, RussiaM. M. AggarwalPanjab University, Chandigarh 160014, IndiaZ. AhammedVariable Energy Cyclotron Centre, Kolkata 700064, IndiaN. N. AjitanandStony Brook UniversityI. AlekseevAlikhanov Institute for Theoretical and Experimental Physics, Moscow 117218, RussiaD. M. AndersonTexas A&M University, College Station, TX 77843Y. G.University of Tsukuba, Tsukuba, Ibaraki 305-8571, JapanA. AparinJoint Institute for Nuclear Research, Dubna 141 980, RussiaD. ArkhipkinBrookhaven National Laboratory, Upton, NY 11973E. C. AschenauerBrookhaven National Laboratory, Upton, NY 11973M. U. AshrafTsinghua University, Beijing 100084F. AtetallaKent State University, Kent, OH 44242A. AttriPanjab University, Chandigarh 160014, IndiaG. S. AverichevJoint Institute for Nuclear Research, Dubna 141 980, RussiaX. BaiCentral China Normal University, Wuhan, Hubei 430079V. BairathiNational Institute of Science Education and Research, HBNI, Jatni 752050, IndiaK. N. BarishUniversity of California , Riverside , CA 92521 iA. J. BassillaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandA. BeheraaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandR. BellwiedaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandA. BhasinaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandA. K. BhatiaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. BielčíkCzech Technical University in Prague , FNSPE , Prague 115 19 , Czech RepublicJ. BielčíkováaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandL. C. BlandBrookhaven National Laboratory , Upton , NY 11973I. G. BordyuzhinaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. D. BrandenburgaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandA. V. BrandinaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandD. S. BrownaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. BryslawskyjaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandI. BunzarovaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. M. ButterworthaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandH. CainesaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandM. Calderón de la Barca SánchezaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. M. CampbellaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandD. CebraaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandI. ChakaberiaaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandP. ChaloupkaCzech Technical University in Prague , FNSPE , Prague 115 19 , Czech RepublicZ. ChangaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandF-H. ChangaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandN. Chankova-BunzarovaaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandA. ChatterjeeVariable Energy Cyclotron Centre, Kolkata 700064, IndiaS. ChattopadhyayaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ.H. ChenFudan University , Shanghai , 200433X. ChenaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandX. ChenInstitute of Modern Physics , Chinese Academy of Sciences , Lanzhou , Gansu 730000J. ChengaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandM. CherneyCreighton University , Omaha , NE 68178W. ChristieaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandG. ContinaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandH. J. CrawfordUniversity of California , Berkeley , CA 94720S. DasaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandT. G. DedovichJoint Institute for Nuclear Research , Dubna 141 980 , RussiaI. M. DeppnerUniversity of Heidelberg , Heidelberg 69120 , GermanyA. A. DerevschikovaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandL. DidenkoaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandC. DilksaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandX. DongaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. L. DrachenbergLamar University , Physics Department , Beaumont , TX 77710J. C. DunlopBrookhaven National Laboratory , Upton , NY 11973L. G. EfimovJoint Institute for Nuclear Research , Dubna 141 980 , RussiaN. ElseyaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. EngelageUniversity of California , Berkeley , CA 94720G. EppleyaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandR. EshaaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandS. EsumiAGH University of KrakowO. EvdokimovUniversity of Illinois at Chicago , Chicago , IL 60607J. EwiglebenaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandO. EyserBrookhaven National Laboratory , Upton , NY 11973R. FatemiUniversity of Kentucky , Lexington , KY 40506-0055S. FazioaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandP. FedericaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandP. FederičováaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. FedorišinJoint Institute for Nuclear Research , Dubna 141 980 , RussiaP. FilipJoint Institute for Nuclear Research , Dubna 141 980 , RussiaE. FinchaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandY. FisyakaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandC. E. FloresaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandŁ. FulekAGH University of Science and Technology , FPACS , Cracow 30-059 , PolandC. A. GagliardiaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandT. GalatyukTechnische Universität Darmstadt , Darmstadt 64289 , GermanyF. J. M. GeurtsCentral China Normal University , Wuhan , Hubei 430079S. M. GibsonaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandD. GrosnickaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandD. S. GunarathnewYuanyuan GuoCentral China Normal University , Wuhan , Hubei 430079A. GuptaUniversity of Jammu , Jammu 180001 , IndiaW. GurynBrookhaven National Laboratory , Upton , NY 11973A. I. HamadCentral China Normal University , Wuhan , Hubei 430079A. HamedaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandA. HarlenderovaaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandJ. W. HarrisCentral China Normal University , Wuhan , Hubei 430079L. HeaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandS. HeppelmannaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandS. HeppelmannaAGH University of Science and Technology, FPACS, Cracow 30-059, PolandN. HerrmannUniversity of Heidelberg , Heidelberg 69120 , Germany
2019lv
Ochiq kirishOlmos
Litsenziya: cc-by
ABI
Annotatsiya
We present the first measurement of the proton–Ω correlation function in heavy-ion collisions for the central (0–40%) and peripheral (40–80%) Au + Au collisions at s NN = 200 GeV by the STAR experiment at the Relativistic Heavy-Ion Collider (RHIC). Predictions for the ratio of peripheral collisions to central collisions for the proton–Ω correlation function are sensitive to the presence of a nucleon–Ω bound state. These predictions are based on the proton–Ω interaction extracted from ( 2 + 1 ) -flavor lattice QCD calculations at the physical point. The measured ratio of the proton–Ω correlation function between the peripheral (small system) and central (large system) collisions is less than unity for relative momentum smaller than 40 MeV/ c . Comparison of our measured correlation ratio with theoretical calculation slightly favors a proton–Ω bound system with a binding energy of ∼ 27 MeV.
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