University of California, Riverside

Faculty Profile System



Richard Seto


Richard Seto

Professor

Department of Physics & Astronomony
Physics 3029/2132
(951) 827-5623
richard.seto@ucr.edu

Research Areas

  • Experimental Relativistic Heavy Ion Physics

I am interested in aspects of Quantum Chromodynamics (QCD) in the bulk. The fundamental topics I am currently investigating are broadly related to: (1) understanding the origin of mass which is connected to the QCD vacuum (2) The understanding of a state of matter in which quarks and gluons are released from their confinement in proton and neutrons — a state loosely called a Quark-Gluon Plasma (QGP). The early universe, a few microseconds after the Big Bang should have existed in such a state. How do we study this? Collisions of heavy ions such as the nuclei of Gold, produce nuclear matter at extreme conditions of temperature and density (a 100 million times hotter than the sun). In this environment, we expect that nuclear matter will undergo a change of phase to a state in which quarks become free to move about within a confinement volume much larger than hadronic states (a QGP). It is likely that in this environment the QCD vacuum is being modified, thereby allowing the possibility of observing the generation of mass directly in QCD with the partial restoration of chiral symmetry. This work is done using the PHENIX detector at the Relativistic Heavy Ion Collider located at the Brookhaven National Laboratory in Long Island, NY.

Degrees

Ph.D. 1983, Columbia University

Biography

Personal Home Page

Publications

  1. "Summary of Experimental Results: Photons, Leptons and Heavy Quarks," R. Seto, J. Phys. G 35, 104043 (2008) [arXiv:0807.1955]. Talk given at Quark Matter 2008: 20th International Conference on Ultra-Relativistic Nucleus Nucleus Collisions (QM 2008), Jaipur, India, 4−10 Feb 2008.
  2. "Onset of π0 Suppression Studied in Cu+Cu Collisions at √sNN =22.4, 62.4, and 200 GeV," A. Adare et al. [PHENIX Collaboration], Phys. Rev. Lett. 101, 162301 (2008) [arXiv:0801.4555].
  3. "Quantitative Constraints on the Opacity of Hot Partonic Matter from Semi-Inclusive Single High Transverse Momentum Pion Suppression in Au+Au collisions at √sNN =200 GeV," A. Adare et al. [PHENIX Collaboration], Phys. Rev. C 77, 064907 (2008) [arXiv:0801.1665].
  4. "Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at √sNN =200 GeV," A. Adare et al. [PHENIX Collaboration], Phys. Rev. Lett. 98, 172301 (2007) [arXiv:nucl-ex/0611018].
  5. "J/ψ production vs centrality, transverse momentum, and rapidity in Au+Au collisions at √sNN =200 GeV," A. Adare et al. [PHENIX Collaboration], Phys. Rev. Lett. 98, 232301 (2007) [arXiv:nucl-ex/0611020].
  6. " Inclusive cross-section and double helicity asymmetry for π0 production in p+p collisions at √s = 200 GeV: Implications for the polarized gluon distribution in the proton. By PHENIX Collaboration", Phys. Rev. D 76, 051106 (2007) [arXiv:0704.3599].
  7. "System size and energy dependence of jet-induced hadron pair correlation shapes in Cu+Cu and Au+Au collisions at √sNN =200-GeV and 62.4 GeV," A. Adare et al. [PHENIX Collaboration], Phys. Rev. Lett. 98, 232302 (2007) [arXiv:nucl-ex/0611019].
  8. "Scaling properties of azimuthal anisotropy in Au+Au and Cu+Cu collisions at √sNN =200 GeV," A. Adare et al. [PHENIX Collaboration], Phys. Rev. Lett. 98, 162301 (2007) [arXiv:nucl-ex/0608033]
  9. "An experimental overview of results presented at SQM 2006" R. Seto, J. Phys. G 32, S1 (2006) [arXiv:nucl-ex/0606034]. Presented at International Conference on Strangeness in Quark Matter (SQM2006), Los Angeles, California, 26−31 Mar 2006.
  10. “ Formation of dense partonic matter in relativistic nucleus nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration” K. Adcox et al. [PHENIX Collaboration], Nucl. Phys. A 757, 184 (2005) [arXiv:nucl-ex/0410003].
  11. "Production of φ mesons at mid-rapidity in √sNN =200 GeV Au+Au collisions at RHIC," S. S. Adler et al. [PHENIX Collaboration], Phys. Rev. C 72, 014903 (2005) [arXiv:nucl-ex/0410012].
  12. "Identified charged particle spectra and yields in Au+Au collisions at √sNN =200 GeV," S. S. Adler et al. [PHENIX Collaboration], Phys. Rev. C 69, 034909 (2004) [arXiv:nucl-ex/0307022].
  13. "Suppressed π0 production at large transverse momentum in central Au + Au collisions at s(NN)**(1/2) = 200-GeV" S. S. Adler et al. [PHENIX Collaboration], Phys. Rev. Lett. 91, 072301 (2003) [arXiv:nucl-ex/0304022].
  14. “Absence of suppression in particle production at large transverse momentum in √sNN =200 GeV d+Au collisions,” S. S. Adler et al. [PHENIX Collaboration], Phys. Rev. Lett. 91, 072303 (2003)  [arXiv:nucl-ex/0306021].
  15. "Elliptic flow of identified hadrons in Au+Au collisions at √sNN =200 GeV," S. S. Adler et al. [PHENIX Collaboration] Phys. Rev. Lett. 91, 182301 (2003) [arXiv:nucl-ex/0305013].
  16. “Mid-rapidity neutral pion production in p+p collisions at √sNN =200 GeV,” S. S. Adler et al. [PHENIX Collaboration], Phys. Rev. Lett. 91, 241803 (2003) [hep-ex/0304038]
  17. "PHENIX detector overview," K. Adcox et al. [PHENIX Collaboration], Nucl. Instrum. Meth. A 499, 469 (2003).
  18. “Suppression of hadrons with large transverse momentum in central Au+Au collisions at √sNN = 130 GeV,” K. Adcox et al. [PHENIX Collaboration] Phys. Rev. Lett. 88, 022301 (2002) [nucl-ex/0109003].
  19. "Production of φ mesons in Au+Au collisions at 11.7 A GeV/c," B. B. Back et al. [E917 Collaboration], Phys. Rev. C 69, 054901 (2004) [arXiv:nucl-ex/0304017].
  20. "Antilambda production in Au+Au collisions at 11.7 A GeV/c," B. B. Back et al. [E917 Collaboration], Phys. Rev. Lett. 87, 242301 (2001) [arXiv:nucl-ex/0101008].
  21. "Centrality dependence of charged particle multiplicity in Au-Au collisions at √sNN = 130 GeV," K. Adcox et al. [PHENIX Collaboration], Phys. Rev. Lett. 86, 3500 (2001) [arXiv:nucl-ex/0012008].
  22. "Baryon rapidity loss in relativistic Au+Au collisions" B. B. Back et al. [E917 Collaboration], Phys. Rev. Lett. 86, 1970 (2001) [arXiv:nucl-ex/0003007].
  23. "Heavy ion physics from Bevalac to RHIC. Proceedings, Relativistic Heavy Ion Symposium, APS Centennial Meeting, Atlanta, USA, March 20−26, 1999" R. Seto, Singapore: World Scientifc (1999) 322 p.
  24. "Search for muon-neutrino oscillations muon-neutrino → electron-neutrino (anti-muon- neutrino → anti-electron-neutrino in a wide band neutrino beam," L. Borodovsky et al., Phys. Rev. Lett. 68, 274 (1992)
 
 

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