4.8 Article

Indications of Conical Emission of Charged Hadrons at the BNL Relativistic Heavy Ion Collider

Journal

PHYSICAL REVIEW LETTERS
Volume 102, Issue 5, Pages -

Publisher

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.102.052302

Keywords

-

Funding

  1. RHIC Operations Group
  2. RCF at BNL
  3. NERSC Center at LBNL
  4. Open Science Grid consortium
  5. Offices of NP and HEP within the U. S. DOE Office of Science
  6. U. S. NSF
  7. Sloan Foundation
  8. DFG Excellence Cluster EXC153 of Germany
  9. CNRS/IN2P3
  10. RA
  11. RPL
  12. EMN of France
  13. STFC
  14. EPSRC of the United Kingdom
  15. FAPESP of Brazil
  16. Russian Ministry of Sci. and Tech.
  17. NNSFC
  18. CAS
  19. MoST
  20. MoE of China
  21. IRP
  22. GA of the Czech Republic
  23. FOM of the Netherlands
  24. DAE
  25. DST
  26. CSIR of the Government of India
  27. Swiss NSF
  28. Polish State Committee for Scientific Research
  29. Korea Sci.Eng. Foundation
  30. Science and Technology Facilities Council [PP/F001061/1] Funding Source: researchfish
  31. STFC [PP/F001061/1] Funding Source: UKRI

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Three-particle azimuthal correlation measurements with a high transverse momentum trigger particle are reported for pp, d + Au, and Au + Au collisions at root(NN)-N-S = 200 GeV by the STAR experiment. Dijet structures are observed in pp, d + Au and peripheral Au + Au collisions. An additional structure is observed in central Au + Au data, signaling conical emission of correlated charged hadrons. The conical emission angle is found to be theta = 1.37 +/- 0.02(stat)(-0.07)(+0.06)(syst), independent of p perpendicular to.

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