Measurement of away-side broadening with self-subtraction of flow in Au+Au collisions at GeV
Collaboration
9 pages
Published in:
- Chin.Phys.C 44 (2020) 104001
e-Print:
- 1906.09363 [nucl-ex]
DOI:
- 10.1088/1674-1137/ab97a9 (publication)
Experiments:
View in:
Citations per year
Abstract: (arXiv)
High transverse momentum () particle production is suppressed due to parton (jet) energy loss in the hot dense medium created in relativistic heavy-ion collisions. Redistribution of energy at low-to-modest has been elusive to measure because of large anisotropic backgrounds. We report a data-driven method for background evaluation and subtraction, exploiting the away-side pseudorapidity gaps, to measure the jetlike correlation shape in Au+Au collisions at GeV with the STAR experiment. The correlation shapes, for trigger particle GeV/ and various associated particle ranges within GeV/, are consistent with Gaussians and their widths are found to increase with centrality. The results indicate jet broadening in the medium created in central heavy-ion collisions.Note:
- 9 pages, 5 figures
- jet: broadening
- transverse momentum: high
- background: anisotropy
- heavy ion: scattering
- correlation
- suppression
- energy loss
- trigger
- parton
- STAR
References(64)
Figures(5)
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