Dijet imbalance measurements in and collisions at at STAR
Journal Article
·
· Physical Review Letters
In this paper, we report the first dijet transverse momentum asymmetry measurements from Au + Au and pp collisions at RHIC. The two highest-energy back-to-back jets reconstructed from fragments with transverse momenta above 2 GeV/c display a significantly higher momentum imbalance in heavy-ion collisions than in the pp reference. Finally, when reexamined with correlated soft particles included, we observe that these dijets then exhibit a unique new feature—momentum balance is restored to that observed in pp for a jet resolution parameter of R = 0.4, while rebalancing is not attained with a smaller value of R = 0.2.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC); Univ. of Illinois, Chicago, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP); National Science Foundation (NSF)
- Contributing Organization:
- STAR Collaboration
- Grant/Contract Number:
- SC0012704; FG02-94ER40865
- OSTI ID:
- 1376109
- Alternate ID(s):
- OSTI ID: 1374774; OSTI ID: 1666123
- Report Number(s):
- BNL-113966-2017-JA; R&D Project: PO 004; KB0202012; TRN: US1702799
- Journal Information:
- Physical Review Letters, Vol. 119, Issue 6; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 23 works
Citation information provided by
Web of Science
Web of Science
Measurement of the Splitting Function in pp and Pb-Pb Collisions at √sNN=5.02 TeV
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text | January 2018 |
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