## Colin Morningstar

Professor of Physics

Nuclear & Particle Physics

Quark Interaction Theory

Wean Hall 8420

# Education & Professional Experience

PhD: University of Toronto (Canada), Theoretical Particle Physics (1991)

M.Sc.: University of Toronto (Canada), Theoretical Particle Physics (1986)

Professional Societies:

Fellow, American Physical Society

Professor of Physics, Carnegie Mellon University, 2010–

Indefinite Tenure, Carnegie Mellon University, 2006

Associate Professor, Carnegie Mellon University, 2006–10

Assistant Professor, Carnegie Mellon University, 2000–2006

Assistant Professor, Florida International University, 1999–2000

Post-doctoral Research: UC San Diego, 1995–99

Post-doctoral Research: University of Edinburgh, 1993–95

Post-doctoral Research: Stanford Linear Accelerator Center, 1991–93

# Research Interests

My research interests primarily concern nonperturbative phenomena in quantum field theories, with particular emphasis on the study of hadron formation and confinement in quantum chromodynamics using computer simulations of quarks and gluons. Two past highlights include a first comprehensive determination of the glueball spectrum in pure Yang-Mills and the spectrum of heavy-quark hybrid mesons in the leading Born-Oppenheimer approximation (neglecting light quark loops). My collaborators and I are currently focusing on *ab initio* determinations of the excited baryon and meson spectra using lattice QCD Monte Carlo methods. Our computations are carried out on the NSF XSEDE supercomputers and on machines available through the DOE's INCITE program.

# Selected Publications

Berkowitz, E., Bulava, J., Chang, C. C., et al.,*Two-nucleon S-wave interactions at the SU(3) flavor-symmetric point with m ud ≈ m phys/s : A first lattice QCD calculation with the stochastic Laplacian Heaviside method*, Phys. Rev. C 103, 014003 (2021)

Blanton, T.D., Hanlon, A.D., Hörz, B. et al., *Interactions of two and three mesons including higher partial waves from lattice QCD.* J. High Energ. Phys. 2021,** **23 (2021)

J. Bulava, B. Hoerz, F. Knechtli, V Koch, G. Moir, C. Morningstar, M. Peardon, *String breaking by light and strange quarks in QCD*, Phys. Lett. B 793, 493 (2019)

C.W. Andersen, J. Bulava, B. Hoerz, C. Morningstar, *The I=1 pion-pion scattering amplitude and timelike pion form factor from N _{f} = 2+1 lattice QCD*, Nucl. Phys. B 939, 145 (2019)

R. Brett, J. Bulava, J. Fallica, A. Hanlon, B. Hoerz, C. Morningstar, *Determination of s- and p-wave I=1/2 Kπ scattering amplitudes in N _{f }= 2 + 1 lattice QCD*, Nucl. Phys. B 932, 29 (2018)

C.W. Andersen, J. Bulava, B. Hoerz, C. Morningstar, *The elastic I=3/2 p-wave nucleon-pion scattering amplitude and the Δ(1232) resonance from N _{f }= 2 + 1 lattice QCD*, Phys. Rev. D 97, 014506 (2018)

C. Morningstar, J. Bulava, B. Singha, R. Brett, J. Fallica, A. Hanlon, B. Hoerz, *Estimating the two-particle K-matrix for multiple partial waves and decay channels from finite-volume energies, *Nucl. Phys. B 924, 477 (2017)

J. Bulava, B. Fahy, B. Hörz, K. J. Juge, C. Morningstar, C. Wong, *I** = 1 and **I** = 2 **π**–**π** scattering phase shifts from **N** _{f} = 2 + 1 lattice QCD, *Nucl. Phys. B 910, 842 (2016)

Colin Morningstar, *Unearthing Excited Hadron Resonances in Lattice QCD Using NSF XSEDE Resources*, Computing in Science & Engineering 17, 23 (2015)

C. Morningstar, J. Bulava, B. Fahy, J. Foley, Y. C. Jhang, K. J. Juge, D. Lenkner, C. H. Wong, *Extended hadron and two-hadron operators of definite momentum for spectrum calculations in lattice QCD*, Phys. Rev. D 88, 14511 (2013)

C. Morningstar, J. Bulava, J. Foley, K. J. Juge, D. Lenkner, M. Peardon, C. H. Wong, *Improved stochastic estimation of quark propagation with Laplacian Heaviside smearing in lattice QCD*, Phys. Rev. D 83, 114505 (2011)

J. Bulava, R. G. Edwards, E. Engelson, B. Joó, H-W. Lin, C. Morningstar, D. G. Richards, S. J. Wallace, *Nucleon, Δ, and Ω excited state spectra in N _{f }= 2 + 1 lattice QCD*, Phys. Rev. D 82, 014507 (2010)

More Publications:

ORCID Researcher ID