Hanbury-Brown–Twiss interferometry relative to the triangular flow plane in heavy-ion collisions

Plumberg, Christopher J.; Shen, Chun; Heinz, Ulrich

doi:10.1103/PhysRevC.88.044914

Hanbury-Brown–Twiss interferometry relative to the triangular flow plane in heavy-ion collisions

Journal Article · Mon Oct 21 04:00:00 EDT 2013 · Physical Review C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.88.044914· OSTI ID:1604549

Plumberg, Christopher J. ^[1]; Shen, Chun ^[2]; ^[2]

The Ohio State Univ., Columbus, OH (United States). Dept. of Physics; The Ohio State University
The Ohio State Univ., Columbus, OH (United States). Dept. of Physics

The PHENIX Collaboration has reported third-order harmonic oscillations of the source radius parameters when measuring the Hanbury-Brown–Twiss (HBT) correlation function for charged hadrons relative to the triangular flow angle. We explore possible origins of such third-order oscillations with a simple Gaussian emission function featuring both a triangular geometric deformation and triangular flow. Third-order oscillations of the HBT radii can arise from a purely geometric triangular deformation superimposed on an azimuthally symmetric radial flow, or from a radially symmetry spatial distribution which expands anisotropically with a triangular component in the flow velocity profile. In both cases the final particle momentum distribution features triangular flow. Here, we show that the two alternatives can be distinguished experimentally through the phase of the azimuthal oscillations of the HBT radii relative to the triangular flow plane.

View Accepted Manuscript (DOE)

Research Organization:: The Ohio State Univ., Columbus, OH (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)

Grant/Contract Number:: SC0004286; SC0004104

OSTI ID:: 1604549

Journal Information:: Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 4 Vol. 88; ISSN 0556-2813; ISSN PRVCAN

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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