Lacey, Roy A. - Stony Brook University - Department of Chemistry

个人简介

B.S. University of the West Indies, 1978 Ph.D. State University of New York at Stony Brook, 1987 Research Fellow, Commissariat a l'Energie Atomique (CEA) at the Centre d'Etudes Nucleaires de Saclay, France, 1988-1989 Research Fellow, Centre National de la Recherche Scientifique (CNRS) GANIL, Caen, France, 1989-1990 Research Fellow, National SuperConducting Cyclotron Laboratory (NSCL), Michigan State University, 1990-1991

研究领域

Nuclear Chemistry Energetic collisions between heavy nuclei very often lead to nuclear matter at high energy densities. Such collisions provide unique opportunities for the investigation of nuclear matter under extreme conditions of temperature and pressure and hence, allow for a study of the nuclear matter phase diagram in regions different from normal nuclear matter density and temperature. In this regard, it is significant to note that theoretical efforts have identified two particularly important regions in this phase diagram. One corresponds to a liquid-gas phase transition and the other to a transition to the quark gluon plasma. Neither region has been unambiguously identified experimentally. Our research is currently focused on a characterization of the statistical and dynamical properties of nuclear matter created in heavy ion collisions at medium and relativistic energies. It involves an active experimental program--which utilizes accelerators at various national facilities--as well as a theoretical component geared at the modeling of nuclear reactions. Our "tools" include state-of-the-art FourPi detector arrays, Time Projection Chambers, etc., for charged particle detection. Data analysis and theoretical modeling are carried out on computers which range from workstations to super-computers. An important component of our program is the desire to stimulate interest in the early development of a variety of research skills by undergraduate as well as graduate students. In particular, opportunities abound for students (a) to participate in the planning and execution of experiments, (b) to participate in the design and building of detectors and their use in experiments, (c) to learn procedures and develop skills for computer simulations, and (d) to explore, analyze, reason logically, and make decisions based on the collection, visual representation, and interpretation of experimental data.

近期论文

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An Upgrade Proposal from the PHENIX Collaboration A. Adare, S. Afanasiev, C. Aidala, N.N. Ajitanand, Y. Akiba, R. Akimoto, J. Alexander, K. Aoki, N. Apadula, H. Asano et al.. Jan 25, 2015. 237 pp. e-Print: arXiv:1501.06197 Systematic Study of Azimuthal Anisotropy in Cu+Cu and Au+Au Collisions at sNN−−−√=62.4 and 200~GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). Dec 2, 2014. 22 pp. e-Print: arXiv:1412.1043 Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au+Au collisions at sNN−−−√ = 200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). Dec 2, 2014. 8 pp. e-Print: arXiv:1412.1038 Observation of the critical end point in the phase diagram for hot and dense nuclear matter Roy A. Lacey. Nov 28, 2014. 5 pp. e-Print: arXiv:1411.7931 Beam-energy and system-size dependence of the space-time extent of the pion emission source produced in heavy ion collisions PHENIX Collaboration (A. Adare (Colorado U.) et al.). Oct 9, 2014. 8 pp. e-Print: arXiv:1410.2559 Charged-pion cross sections and double-helicity asymmetries in polarized p+p collisions at s√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). Sep 5, 2014. 13 pp. Published in Phys.Rev. D91 (2015) 3, 032001 DOI: 10.1103/PhysRevD.91.032001 e-Print: arXiv:1409.1907 Search for dark photons from neutral meson decays in p+p and d+Au collisions at sNN−−−√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). Sep 2, 2014. 8 pp. Published in Phys.Rev. C91 (2015) 3, 031901 DOI: 10.1103/PhysRevC.91.031901 e-Print: arXiv:1409.0851 Beam energy dependence of the expansion dynamics in relativistic heavy ion collisions: Indications for the critical end point? Roy A. Lacey (SUNY, Stony Brook). Aug 6, 2014. 5 pp. Published in Nucl.Phys. A931 (2014) 904-909 DOI: 10.1016/j.nuclphysa.2014.10.036 Conference: C14-05-19.4 Proceedings e-Print: arXiv:1408.1343 Cross section and transverse single-spin asymmetry of η mesons in p↑+p collisions at s√=200 GeV at forward rapidity PHENIX Collaboration (A. Adare (Colorado U.) et al.). Jun 13, 2014. 15 pp. Published in Phys.Rev. D90 (2014) 7, 072008 DOI: 10.1103/PhysRevD.90.072008 e-Print: arXiv:1406.3541 Cross section for bb¯ production via dielectrons in d+Au collisions at sNN−−−√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). May 15, 2014. 18 pp. Published in Phys.Rev. C91 (2015) 1, 014907 DOI: 10.1103/PhysRevC.91.014907 e-Print: arXiv:1405.4004 Low-mass vector-meson production at forward rapidity in p+p collisions at s√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). May 16, 2014. 12 pp. Published in Phys.Rev. D90 (2014) 5, 052002 DOI: 10.1103/PhysRevD.90.052002 e-Print: arXiv:1405.4260 Centrality dependence of low-momentum direct-photon production in Au+Au collisions at sNN−−−√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). May 15, 2014. 11 pp. e-Print: arXiv:1405.3940 Measurement of K0S and K∗0 in p+p, d+Au, and Cu+Cu collisions at sNN−−−√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). May 14, 2014. 18 pp. Published in Phys.Rev. C90 (2014) 5, 054905 DOI: 10.1103/PhysRevC.90.054905 e-Print: arXiv:1405.3628 Heavy-quark production and elliptic flow in Au+Au collisions at sNN−−−√=62.4 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). May 13, 2014. 19 pp. e-Print: arXiv:1405.3301 Measurement of long-range angular correlation and quadrupole anisotropy of pions and (anti)protons in central d+Au collisions at sNN−−−√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). Apr 29, 2014. 7 pp. e-Print: arXiv:1404.7461 Comparison of the space-time extent of the emission source in d+Au and Au+Au collisions at sNN−−−−√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). Apr 21, 2014. 5 pp. Published in Nucl.Phys. A931 (2014) 1082-1087 DOI: 10.1016/j.nuclphysa.2014.08.054 Conference: C14-05-19.4 Proceedings e-Print: arXiv:1404.5291 Measurement of Υ(1S+2S+3S) production in p+p and Au+Au collisions at sNN−−−√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). Apr 8, 2014. 16 pp. Published in Phys.Rev. C91 (2015) 2, 024913 DOI: 10.1103/PhysRevC.91.024913 e-Print: arXiv:1404.2246 Nuclear matter effects on J/ψ production in asymmetric Cu+Au collisions at sNN−−−√ = 200 GeV PHENIX Collaboration (C. Aidala (Los Alamos & Michigan U.) et al.). Apr 7, 2014. 10 pp. e-Print: arXiv:1404.1873 Inclusive double-helicity asymmetries in neutral-pion and eta-meson production in p⃗ +p⃗ collisions at s√=200 GeV PHENIX Collaboration (A. Adare (Colorado U.) et al.). Feb 25, 2014. 19 pp. Published in Phys.Rev. D90 (2014) 1, 012007 DOI: 10.1103/PhysRevD.90.012007 e-Print: arXiv:1402.6296 Concept for an Electron Ion Collider (EIC) detector built around the BaBar solenoid PHENIX Collaboration (A. Adare et al.). Feb 5, 2014. 59 pp.