Steffen A. Bass

Steffen A. Bass

Arts and Sciences Distinguished Professor of Physics

Professor of Physics

Chair of Physics

Office Location: 
261D Physics, Durham, NC 27708
Front Office Address: 
Box 90305, Durham, NC 27708-0305
Phone: 
(919) 660-2479

Overview

Prof. Bass does research at the intersection of theoretical nuclear and particle physics, in particular studying highly energetic collisions of heavy nuclei, with which one aims to create a primordial state of matter at extremely high temperatures and densities (the Quark-Gluon-Plasma) that resembles the composition of the early Universe shortly after the Big Bang. 

It has been only in the last two decades that accelerators have been in operation that give us the capabilities to create the conditions of temperature and density in the laboratory that are favorable for the Quark-Gluon-Plasma  (QGP) to exist. The Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Laboratory and the accompaniment of detector systems were built specifically to observe and study this phase of matter. Similar studies have recently commenced at the CERN Large Hadron Collider. The experiments at RHIC have discovered a new form of ultra-dense matter with unprecedented properties, a plasma composed of unbound quarks and gluons, that appears to behave as a nearly ``perfect liquid.''

Prof. Bass is a leading expert in the phenomenology of the Quark-Gluon-Plasma (QGP) and in knowledge extraction from large scale data sets via computational modeling. He is best known for his work developing a variety of computational models for the description of these ultra-relativistic heavy-ion collisions, as well as for his contributions to the phenomenology of the QGP and the determination of the shear viscosity of the QGP.

 Prof. Bass is a member of the Divisions of Nuclear and Computational Physics of the American Physical Society. He has published more than 160 peer-reviewed articles. He is a member of the Editorial Board of Journal of Physics G: Nuclear and Particle Physics.  In 2014 he was named Outstanding Referee for APS Journals and was elected a Fellow of the American Physical Society.

Education & Training

  • Ph.D., Johann Wolfgang Goeth Universitat Frankfurt Am Main (Germany) 1997

  • M.S., Johann Wolfgang Goeth Universitat Frankfurt Am Main (Germany) 1993

Selected Grants

REU Site: Undergraduate Research in Nuclear Particle Physics at TUNL and Duke awarded by National Science Foundation (Senior Investigator). 2018 to 2021

Nuclear Physics at Extreme Energy Density awarded by Department of Energy (Principal Investigator). 2005 to 2021

Support for Xiaojun Yao awarded by (Principal Investigator). 2017 to 2019

Fermi Gases in Bichromatic Superlattices awarded by North Carolina State University (Principal Investigator). 2012 to 2018

Optical Control of Interactions in Non-equilibrium Fermi Gases awarded by North Carolina State University (Principal Investigator). 2016 to 2018

Nuclear Physics at Extreme Energy Density awarded by Department of Energy (Principal Investigator). 2005 to 2018

JET Collaboration awarded by Department of Energy (Co-Principal Investigator). 2010 to 2015

NEARLY PERFECT LIQUIDS 2009: From Quark-Gluon Plasma to Ultra-Cold Atoms awarded by National Science Foundation (Principal Investigator). 2009 to 2010

Hot Quarks 2008 awarded by National Science Foundation (Principal Investigator). 2008 to 2009

Pages

Song, T., et al. “Traces of nonequilibrium effects, initial condition, bulk dynamics, and elementary collisions in the charm observables.” Physical Review C, vol. 101, no. 4, Apr. 2020. Scopus, doi:10.1103/PhysRevC.101.044903. Full Text

Moreland, J. S., et al. “Bayesian calibration of a hybrid nuclear collision model using p-Pb and Pb-Pb data at energies available at the CERN Large Hadron Collider.” Physical Review C, vol. 101, no. 2, Feb. 2020. Scopus, doi:10.1103/PhysRevC.101.024911. Full Text

Ke, W., et al. “Modified Boltzmann approach for modeling the splitting vertices induced by the hot QCD medium in the deep Landau-Pomeranchuk-Migdal region.” Physical Review C, vol. 100, no. 6, Dec. 2019. Scopus, doi:10.1103/PhysRevC.100.064911. Full Text

Bernhard, J. E., et al. “Bayesian estimation of the specific shear and bulk viscosity of quark–gluon plasma.” Nature Physics, vol. 15, no. 11, Nov. 2019, pp. 1113–17. Scopus, doi:10.1038/s41567-019-0611-8. Full Text

Abada, A., et al. “FCC-hh: The Hadron Collider: Future Circular Collider Conceptual Design Report Volume 3.” European Physical Journal: Special Topics, vol. 228, no. 4, July 2019, pp. 755–1107. Scopus, doi:10.1140/epjst/e2019-900087-0. Full Text

Abada, A., et al. “HE-LHC: The High-Energy Large Hadron Collider: Future Circular Collider Conceptual Design Report Volume 4.” European Physical Journal: Special Topics, vol. 228, no. 5, July 2019, pp. 1109–382. Scopus, doi:10.1140/epjst/e2019-900088-6. Full Text

Nahrgang, M., et al. “Diffusive dynamics of critical fluctuations near the QCD critical point.” Physical Review D, vol. 99, no. 11, June 2019. Scopus, doi:10.1103/PhysRevD.99.116015. Full Text

Abada, A., et al. “FCC-ee: The Lepton Collider: Future Circular Collider Conceptual Design Report Volume 2.” European Physical Journal: Special Topics, vol. 228, no. 2, June 2019, pp. 261–623. Scopus, doi:10.1140/epjst/e2019-900045-4. Full Text

Abada, A., et al. “FCC Physics Opportunities: Future Circular Collider Conceptual Design Report Volume 1.” European Physical Journal C, vol. 79, no. 6, June 2019. Scopus, doi:10.1140/epjc/s10052-019-6904-3. Full Text

Cao, S., et al. “Toward the determination of heavy-quark transport coefficients in quark-gluon plasma.” Physical Review C, vol. 99, no. 5, May 2019. Scopus, doi:10.1103/PhysRevC.99.054907. Full Text

Pages

Dai, T., et al. “Hard scattering and stochastic reformulation of parton energy loss.” Proceedings of Science, vol. 355, 2019.

Ke, W., et al. “Modeling coherence effects of gluon emission for heavy flavor studies.” Proceedings of Science, vol. 355, 2019.

Fan, W., et al. “Heavy jet analysis within the JETSCAPE framework.” Proceedings of Science, vol. 355, 2019.

Bluhm, M., et al. “Fluctuating fluid dynamics for the QGP in the LHC and BES era.” Epj Web of Conferences, vol. 171, 2018. Scopus, doi:10.1051/epjconf/201817116004. Full Text

Xu, Y., et al. “A data-drive analysis for heavy quark diffusion coefficient.” Epj Web of Conferences, vol. 171, 2018. Scopus, doi:10.1051/epjconf/201817118001. Full Text

Dai, T., et al. “Parton energy loss in the reformulated weakly-coupled kinetic approach.” Proceedings of Science, vol. 345, 2018.

Ke, W., et al. “Towards an extraction of q with an uncertainty controlled energy loss Monte-Carlo.” Proceedings of Science, vol. 345, 2018.

Xu, Y., et al. Data-driven analysis of the temperature dependence of the heavy-quark transport coefficient. Vol. 289–290, 2017, pp. 257–60. Scopus, doi:10.1016/j.nuclphysbps.2017.05.058. Full Text

Ke, W., et al. “Constraints on rapidity-dependent initial conditions from charged particle pseudorapidity densities and correlations at the LHC.” Nuclear and Particle Physics Proceedings, vol. 289–290, 2017, pp. 483–86. Scopus, doi:10.1016/j.nuclphysbps.2017.05.113. Full Text

Bluhm, M., et al. “Behavior of universal critical parameters in the QCD phase diagram.” Journal of Physics: Conference Series, vol. 779, no. 1, 2017. Scopus, doi:10.1088/1742-6596/779/1/012074. Full Text

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