Production of π0 and η mesons in U+U collisions at sNN =192 GeV

U. Acharya; P. Christiansen; A. Oskarsson; D. Silvermyr; E. Stenlund; S. Zhou; L. Zou; PHENIX Collaboration

doi:10.1103/PhysRevC.102.064905

Production of π0 and η mesons in U+U collisions at sNN =192 GeV

U. Acharya, P. Christiansen, A. Oskarsson, D. Silvermyr, E. Stenlund, S. Zhou, L. Zou, PHENIX Collaboration

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Abstract

The PHENIX experiment at the Relativistic Heavy Ion Collider measured π0 and η mesons at midrapidity in U+U collisions at sNN=192 GeV in a wide transverse momentum range. Measurements were performed in the π0(η)→γγ decay modes. A strong suppression of π0 and η meson production at high transverse momentum was observed in central U+U collisions relative to binary scaled p+p results. Yields of π0 and η mesons measured in U+U collisions show similar suppression pattern to those measured in Au+Au collisions at sNN=200 GeV for similar numbers of participant nucleons. The η/π0 ratios do not show dependence on centrality or transverse momentum and are consistent with previously measured values in hadron-hadron, hadron-nucleus, nucleus-nucleus, and e+e- collisions.

Original language	English
Article number	064905
Journal	Physical Review C
Volume	102
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevC.102.064905
Publication status	Published - 2020

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Subatomic Physics

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title = "Production of π0 and η mesons in U+U collisions at sNN =192 GeV",

abstract = "The PHENIX experiment at the Relativistic Heavy Ion Collider measured π0 and η mesons at midrapidity in U+U collisions at sNN=192 GeV in a wide transverse momentum range. Measurements were performed in the π0(η)→γγ decay modes. A strong suppression of π0 and η meson production at high transverse momentum was observed in central U+U collisions relative to binary scaled p+p results. Yields of π0 and η mesons measured in U+U collisions show similar suppression pattern to those measured in Au+Au collisions at sNN=200 GeV for similar numbers of participant nucleons. The η/π0 ratios do not show dependence on centrality or transverse momentum and are consistent with previously measured values in hadron-hadron, hadron-nucleus, nucleus-nucleus, and e+e- collisions. ",

author = "U. Acharya and P. Christiansen and A. Oskarsson and D. Silvermyr and E. Stenlund and S. Zhou and L. Zou and {PHENIX Collaboration}",

year = "2020",

doi = "10.1103/PhysRevC.102.064905",

language = "English",

volume = "102",

journal = "Physical Review C",

issn = "2469-9985",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Production of π0 and η mesons in U+U collisions at sNN =192 GeV

AU - Acharya, U.

AU - Christiansen, P.

AU - Oskarsson, A.

AU - Silvermyr, D.

AU - Stenlund, E.

AU - Zhou, S.

AU - Zou, L.

AU - PHENIX Collaboration

PY - 2020

Y1 - 2020

N2 - The PHENIX experiment at the Relativistic Heavy Ion Collider measured π0 and η mesons at midrapidity in U+U collisions at sNN=192 GeV in a wide transverse momentum range. Measurements were performed in the π0(η)→γγ decay modes. A strong suppression of π0 and η meson production at high transverse momentum was observed in central U+U collisions relative to binary scaled p+p results. Yields of π0 and η mesons measured in U+U collisions show similar suppression pattern to those measured in Au+Au collisions at sNN=200 GeV for similar numbers of participant nucleons. The η/π0 ratios do not show dependence on centrality or transverse momentum and are consistent with previously measured values in hadron-hadron, hadron-nucleus, nucleus-nucleus, and e+e- collisions.

AB - The PHENIX experiment at the Relativistic Heavy Ion Collider measured π0 and η mesons at midrapidity in U+U collisions at sNN=192 GeV in a wide transverse momentum range. Measurements were performed in the π0(η)→γγ decay modes. A strong suppression of π0 and η meson production at high transverse momentum was observed in central U+U collisions relative to binary scaled p+p results. Yields of π0 and η mesons measured in U+U collisions show similar suppression pattern to those measured in Au+Au collisions at sNN=200 GeV for similar numbers of participant nucleons. The η/π0 ratios do not show dependence on centrality or transverse momentum and are consistent with previously measured values in hadron-hadron, hadron-nucleus, nucleus-nucleus, and e+e- collisions.

U2 - 10.1103/PhysRevC.102.064905

DO - 10.1103/PhysRevC.102.064905

M3 - Article

SN - 2469-9985

VL - 102

JO - Physical Review C

JF - Physical Review C

IS - 6

M1 - 064905

ER -

Production of π0 and η mesons in U+U collisions at sNN =192 GeV

Abstract

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