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RIKEN Nishina Center for Accelerator-Based Science RHIC Physics Research Group

Director: Yasuyuki Akiba (D.Sc.)

Research Summary

Yasuyuki Akiba

We study one of the four fundamental forces of the nature, the strong interaction, using RHIC collider at Brookhaven National Laboratory, USA. RHIC can collide heavy nuclei at high energy, producing hot and high density matter called Quark Gluon Plasma, which existed in early Universe. We study the properties of QGP produced at RHIC. We also study the nucleon structure with polarized pp collisions at RHIC. RHIC is the only high energy collider that can collide polarized proton beams. Polarized proton collisions at RHIC were realized at the initiative of RIKEN.

Main Research Fields

  • Mathematical & Physical Sciences

Related Research Fields

  • Engineering
  • Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics


  • Quark
  • High temperature and high density matter
  • Nucleon Structure
  • Spin

Selected Publications

  • 1. PHENIX Collaboration (U. A. Acharya et al.)
    "Probing Gluon Spin-Momentum Correlations in Transversely Polarized Proton-Protons through Midrapidity Isolated Direct Photons in p+p Collisions at √s=200 GeV."
    Physical Review Letters 127, 162001 (2022)

Related Links

Lab Members

Principal investigator

Yasuyuki Akiba

Contact Information

Main Research Building,
2-1 Hirosawa,
Wako, Saitama
351-0198, Japan
Email: yasuyuki.akiba [at] riken.jp