Rapidity dependence of initial state geometry and momentum correlations in p+Pb collisions
Schenke, B., Schlichting, S., & Singh, P. (2022). Rapidity dependence of initial state geometry and momentum correlations in p+Pb collisions. Physical Review D, 105(9), Article 094023. https://doi.org/10.1103/PhysRevD.105.094023
Published inPhysical Review D
© 2022 American Physical Society
Event geometry and initial state correlations have been invoked as possible explanations of long-range azimuthal correlations observed in high-multiplicity p+p and p+Pb collisions. We study the rapidity dependence of initial state momentum correlations and event-by-event geometry in √s=5.02 TeV p+Pb collisions within the 3+1D IP-Glasma model [B. Schenke and S. Schlichting, Phys. Rev. C 94, 044907 (2016)], where the longitudinal structure is governed by Jalilian-Marian-Iancu-McLerran-Weigert-Leonidov-Kovner rapidity evolution of the incoming nuclear gluon distributions. We find that the event geometry is correlated across large rapidity intervals whereas initial state momentum correlations are relatively short-range in rapidity. Based on our results, we discuss implications for the relevance of both effects in explaining the origin of collective phenomena in small systems.
PublisherAmerican Physical Society (APS)
Publication in research information system
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Related funder(s)Research Council of Finland; European Commission
Funding program(s)Academy Project, AoF
The content of the publication reflects only the author’s view. The funder is not responsible for any use that may be made of the information it contains.
Additional information about fundingS. S. and P. S. are supported by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) through the CRC-TR 211 “Strong Interaction Matter under Extreme Conditions”—Project No. 315477589–TRR 211. P. S. is also supported by the Academy of Finland under Project No. 321840 and under the European Union’s Horizon 2020 research and innovation program by the STRONG-2020 project (Grant Agreement No. 824093). B. S. is supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics, under Contract No. DE-SC0012704. This research used the resources of the National Energy Research Scientific Computing Center, a DOE Office of Science User Facility supported by the Office of Science of the U.S. Department of Energy under Contract No. DE-AC02-05CH11231. ...
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