Faculty Profile


    

Education

PhD, Royal Holloway and Bedford New College, University of London, 1986.
Major: Physics, A Theoretical Study of Elastic Electron-Positronium Scattering and Photo-absorption by the Positronium Negative Ion
Dissertation Title: A Theoretical Study of Elastic Electron Positronium Scattering and Photo-absorption by the Positronium Negative Ion
BS, Royal Holloway College, University of London., 1983.
Major: Physics, Class 1 Honours

Current Scheduled Teaching*

PHYS 6950.761, Doctoral Dissertation, Fall 2021
PHYS 5500.001, Quantum Mechanics I, Fall 2021 Syllabus
PHYS 5900.761, Special Problems, Fall 2021

* Texas Education Code 51.974 (HB 2504) requires each institution of higher education to make available to the public, a syllabus for undergraduate lecture courses offered for credit by the institution.

Previous Scheduled Teaching*

PHYS 6950.761, Doctoral Dissertation, Spring 2021
PHYS 4310.001, Quantum Mechanics, Spring 2021 Syllabus SPOT
PHYS 4310.201, Quantum Mechanics, Spring 2021 Syllabus SPOT
PHYS 4910.761, Special Problems, Spring 2021
PHYS 5900.761, Special Problems, Spring 2021
PHYS 6950.761, Doctoral Dissertation, Fall 2020
PHYS 6940.761, Individual Research, Fall 2020
PHYS 3310.001, Mathematical Methods in the Physical Sciences, Fall 2020 Syllabus SPOT
PHYS 3310.201, Mathematical Methods in the Physical Sciences, Fall 2020 Syllabus SPOT
PHYS 5900.761, Special Problems, Fall 2020
PHYS 4955.003, Senior Thesis Capstone, Summer 10W 2020
PHYS 6950.761, Doctoral Dissertation, Spring 2020
PHYS 6940.761, Individual Research, Spring 2020
PHYS 4310.001, Quantum Mechanics, Spring 2020 Syllabus
PHYS 4310.201, Quantum Mechanics, Spring 2020 Syllabus
PHYS 4950.017, Senior Thesis, Spring 2020
PHYS 6950.761, Doctoral Dissertation, Fall 2019
PHYS 6940.761, Individual Research, Fall 2019
PHYS 3310.001, Mathematical Methods in the Physical Sciences, Fall 2019 Syllabus SPOT
PHYS 3310.201, Mathematical Methods in the Physical Sciences, Fall 2019 Syllabus SPOT
PHYS 6950.761, Doctoral Dissertation, Spring 2019
PHYS 6940.761, Individual Research, Spring 2019
PHYS 4310.001, Quantum Mechanics, Spring 2019 Syllabus SPOT
PHYS 4310.201, Quantum Mechanics, Spring 2019 Syllabus SPOT
PHYS 5900.761, Special Problems, Spring 2019
PHYS 6950.761, Doctoral Dissertation, Fall 2018
PHYS 6940.761, Individual Research, Fall 2018
PHYS 3310.001, Mathematical Methods in the Physical Sciences, Fall 2018 Syllabus SPOT
PHYS 3310.201, Mathematical Methods in the Physical Sciences, Fall 2018 Syllabus SPOT
PHYS 5900.761, Special Problems, Fall 2018
PHYS 6940.761, Individual Research, Spring 2018
PHYS 5900.761, Special Problems, Spring 2018
PHYS 6940.761, Individual Research, Fall 2017
PHYS 3310.001, Mathematical Methods in the Physical Sciences, Fall 2017 Syllabus SPOT
PHYS 3310.201, Mathematical Methods in the Physical Sciences, Fall 2017 Syllabus SPOT
PHYS 5500.001, Quantum Mechanics I, Fall 2017 SPOT
PHYS 4900.761, Special Problems, Fall 2017
PHYS 5900.761, Special Problems, Fall 2017
PHYS 6940.761, Individual Research, Spring 2017
PHYS 4310.001, Quantum Mechanics, Spring 2017 Syllabus SPOT
PHYS 4310.201, Quantum Mechanics, Spring 2017 Syllabus
PHYS 5510.001, Quantum Mechanics II, Spring 2017 SPOT
PHYS 4955.009, Senior Thesis Capstone, Spring 2017
PHYS 5900.761, Special Problems, Spring 2017
PHYS 6940.761, Individual Research, Fall 2016
PHYS 5500.001, Quantum Mechanics I, Fall 2016 SPOT
PHYS 4950.764, Senior Thesis, Fall 2016
PHYS 4900.761, Special Problems, Fall 2016
PHYS 4310.001, Quantum Mechanics, Spring 2016 Syllabus SPOT
PHYS 4310.201, Quantum Mechanics, Spring 2016
PHYS 5900.761, Special Problems, Spring 2016
PHYS 5500.001, Quantum Mechanics I, Fall 2015 SPOT
PHYS 5910.761, Special Problems, Fall 2015
PHYS 6950.761, Doctoral Dissertation, Summer 5W1 2015
PHYS 6950.761, Doctoral Dissertation, Spring 2015
PHYS 4310.001, Quantum Mechanics, Spring 2015 Syllabus
PHYS 4310.201, Quantum Mechanics, Spring 2015
PHYS 4910.761, Special Problems, Spring 2015
PHYS 5900.761, Special Problems, Spring 2015
PHYS 6950.761, Doctoral Dissertation, Fall 2014
PHYS 5500.001, Quantum Mechanics I, Fall 2014
PHYS 4910.761, Special Problems, Fall 2014
PHYS 6950.761, Doctoral Dissertation, Spring 2014
PHYS 4310.001, Quantum Mechanics, Spring 2014 Syllabus
PHYS 6950.761, Doctoral Dissertation, Fall 2013
PHYS 4210.001, Electricity and Magnetism, Fall 2013 Syllabus
PHYS 4210.201, Electricity and Magnetism, Fall 2013 Syllabus
PHYS 6950.761, Doctoral Dissertation, Spring 2013
PHYS 4310.001, Quantum Mechanics, Spring 2013 Syllabus
PHYS 4310.201, Quantum Mechanics, Spring 2013 Syllabus
PHYS 6950.761, Doctoral Dissertation, Fall 2012
PHYS 3310.001, Mathematical Methods in the Physical Sciences, Fall 2012 Syllabus
PHYS 3310.201, Mathematical Methods in the Physical Sciences, Fall 2012
PHYS 6950.761, Doctoral Dissertation, Spring 2012
PHYS 4310.001, Quantum Mechanics, Spring 2012 Syllabus
PHYS 4310.201, Quantum Mechanics, Spring 2012
PHYS 6950.761, Doctoral Dissertation, Fall 2011
PHYS 3310.001, Mathematical Methods in the Physical Sciences, Fall 2011 Syllabus
PHYS 3310.201, Mathematical Methods in the Physical Sciences, Fall 2011
PHYS 6950.761, Doctoral Dissertation, Spring 2011
PHYS 4310.001, Quantum Mechanics, Spring 2011 Syllabus
PHYS 4310.201, Quantum Mechanics, Spring 2011
PHYS 6910.761, Special Problems, Spring 2011
PHYS 6950.761, Doctoral Dissertation, Fall 2010
PHYS 3310.001, Mathematical Methods in the Physical Sciences, Fall 2010 Syllabus
PHYS 3310.201, Mathematical Methods in the Physical Sciences, Fall 2010
PHYS 6940.761, Individual Research, Summer 5W1 2010
PHYS 6940.761, Individual Research, Spring 2010
PHYS 6910.761, Special Problems, Spring 2010
PHYS 6940.761, Individual Research, Fall 2009
PHYS 3310.001, Mathematical Methods in the Physical Sciences, Fall 2009
PHYS 3310.201, Mathematical Methods in the Physical Sciences, Fall 2009
PHYS 6940.767, Individual Research, Summer 10W 2009
PHYS 6940.761, Individual Research, Spring 2009
PHYS 6910.761, Special Problems, Spring 2009
PHYS 6000.002, Mathematical Methods of Physics I, Fall 2008
PHYS 5910.761, Special Problems, Fall 2008
PHYS 5910.761, Special Problems, Summer 5W2 2008
PHYS 4910.761, Special Problems, Spring 2008
PHYS 5500.001, Quantum Mechanics I, Fall 2007
PHYS 4910.753, Special Problems, Fall 2007
PHYS 5910.761, Special Problems, Fall 2007
PHYS 4310.002, Quantum Mechanics, Spring 2007
PHYS 4310.202, Quantum Mechanics, Spring 2007
PHYS 5910.761, Special Problems, Spring 2007
PHYS 5500.001, Quantum Mechanics I, Fall 2006
PHYS 5930.750, Research Problems in Lieu of Thesis, Fall 2006
PHYS 4910.761, Special Problems, Fall 2006
PHYS 5920.761, Research Problems in Lieu of Thesis, Summer 5W2 2006
PHYS 5910.761, Special Problems, Summer 5W2 2006
PHYS 5910.761, Special Problems, Spring 2006
PHYS 5500.001, Quantum Mechanics I, Fall 2005
PHYS 5920.002, Research Problems in Lieu of Thesis, Fall 2005
PHYS 5910.761, Special Problems, Summer 5W1 2005
PHYS 6910.761, Special Problems, Summer 5W1 2005
PHYS 4310.001, Quantum Mechanics, Spring 2005
PHYS 4310.201, Quantum Mechanics, Spring 2005
PHYS 6910.756, Special Problems, Spring 2005
PHYS 6000.002, Mathematical Methods of Physics I, Fall 2004
PHYS 6900.761, Special Problems, Fall 2004
PHYS 6900.766, Special Problems, Fall 2004

* Texas Education Code 51.974 (HB 2504) requires each institution of higher education to make available to the public, a syllabus for undergraduate lecture courses offered for credit by the institution.

Published Publications

Published Intellectual Contributions

Abstract for a conference
Ward, S. J., Van Reeth, P. (2016). Deep Minimum in the Differential Cross Section for Ps Formation in Positron-Hydrogen Collisions. 61(8), 193.
Abstract for a national conference
DeMars, C. M., Kent, J. B., Ward, S. J. (2019). Deep minimum in the Coulomb-Born TDCS for e$^-$-He and e$^+$-He ionization. Bulletin of the American Physical Society. 64(4), L01 13, 119 (1 pp)). http://meetings.aps.org/Meeting/DAMOP19/Session/L01.13
Ward, S. J., Alrowaily, A. W., Van Reeth, P. (2019). Multichannel Effective Range Theory Analysis of Zeros in the Positronium formation Scattering Amplitude for Positron-Hydrogen Collisions. Bulletin of the American Physical Society. 64(4), E01 32, 50-51 (2 pp). American Physical Society. http://meetings.aps.org/Meeting/DAMOP19/Session/E01.32
Medrano, G., Ward, S. J., Van Reeth, P. (2019). Variational Calculations of the Ps-Ps System. Bulletin of the American Physical Society. 64(4), S01 25, 193 (1pp). http://meetings.aps.org/Meeting/DAMOP19/Session/S01.2
Abstracts and Proceedings
DeMars, C. M., Ward, S. J., Kent, J. B. (2020). Deep minima in the Coulomb-Born triply differential cross section for electron and positron ionization of hydrogen and helium. Bulletin of the American Physical Society. http://meetings.aps.org/Meeting/GEC20/Session/LT1.3
DeMars, C. M., Ward, S. J., Kent, J. B. (2020). Deep minima in the Coulomb-Born triply differential cross section for electron and positron ionization of hydrogen and helium. Bulletin of the American Physical Society. 65(4), . American Physical Society. http://meetings.aps.org/Meeting/DAMOP20/Session/Q01.26
Ward, S. J., Alrowaily, A. W., Van Reeth, P. (2020). Deep minimum in the Ps-formation differential cross section for positron-helium collisions in the Ore Gap. Bulletin of the American Physical Society. 65(4), . http://meetings.aps.org/Meeting/DAMOP20/Session/E01.28
Ward, S. J., Woods, D., Van Reeth, P. (2015). An Investigation of Positronium-Hydrogen Collisions. 60(7), 182-183. http://meetings.aps.org/link/BAPS.2015.DAMOP.Q1.112
Quintanilla, S. J. (2014). http://meetings.aps.org/link/BAPS.2014.DAMOP.Q1.55
Quintanilla, S. J. (2014). http://meetings.aps.org/link/BAPS.2014.GEC.MW1.7
Quintanilla, S. J. (2014). http://meetings.aps.org/link/BAPS.2014.DAMOP.Q1.37
Quintanilla, S. J. (2013). Deep minimim in the Coulomb-Born TDCS for inner-shell ionization of carbon by electron impact. http://meetings.aps.org/link/BAPS.2013.GEC.HW1.19
Quintanilla, S. J. (2013). Positron Collisions from Simple Atoms and Positronium-Hydrogen Collisions. http://meetings.aps.org/link/BAPS.2013.GEC.KW5.1
Quintanilla, S. J. (2013). Variational Calculations of Low-Energy Elastic Ps-H Scattering. http://meetings.aps.org/link/BAPS.2013.DAMOP.Q1.122
Quintanilla, S. J. (2012). Low-energy S- and P-wave Positronium-Hydrogen Collisions.
Quintanilla, S. J. (2011). Hyperspherical hidden crossing calculation of Ps formation in low-energy e^+-Na collisions.
Quintanilla, S. J. (2011). Low-Energy S-Wave Positronium-Hydrogen Collisions.
Quintanilla, S. J. (2011). Vortices in Coulomb-Born calculations for inner-shell ionization of carbon by electron-impact.
Quintanilla, S. J. (2010). Binding Energy and Geometry of e^+Na.
Quintanilla, S. J. (2010). The Binding Energy of PsH.
Quintanilla, S. J. (2009). Binding Energy Calculations for e^+Li and e^+Na.
Quintanilla, S. J. (1997). "The Hidden Crossing Method Applied toPositroniumFormation".
Quintanilla, S. J. (1993). "RecentDevelopmentsinthe TheoryofPositron-Hydrogen Collisions".
Quintanilla, S. J. (1990). "Positron-AlkaliAtom Scattering".
Quintanilla, S. J. (1990). "Resonances inPositron-Alkali Close-Coupling Calculations".
Quintanilla, S. J. (1990). "Theoretical Calculations of Positron Collisions with Atoms".
Quintanilla, S. J. (1986). "The ScatteringofLow-Energy ElectronsbyPositronium".
Journal Article
DeMars, C. M., Ward, S. J., Colgan, S. J., Amami, S., Madison, D. H. (2020). Deep Minima in the Triply Differential Cross Section for Ionization of Atomic Hydrogen by Electron and Positron Impact. 8(2), 26 (12 pages). MDPI. https://www.mdpi.com/2218-2004/8/2/26
DeMars, C. M., Kent, J. B., Ward, S. J. (2020). Deep minima in the Coulomb-Born triply differential cross sections for ionization of helium by electron and positron impact. The European Physical Journal D. 74, 48 (pages 1-8). SpringerLink. https://link.springer.com/article/10.1140/epjd/e2019-100512-x
Alrowaily, A. W., Ward, S. J., Van Reeth, P. (2019). Deep minima and vortices for positronium formation in low-energy positron-hydrogen collisions. Journal of Physics B: Atomic, Molecular and Optical Physics. 52, 205201 (11pp). Bristol: Institute of Physics.
Van Reeth, P., Woods, D., Ward, S. J., Humberston, J. W. (2016). Corrigendum: Comparison of positronium, positron and electron scattering. Journal of Physics B: Atomic, Molecular and Optical Physics. 49, 169501 (1pp).
Van Reeth, P., Woods, D., Ward, S. J., Humberston, J. W., (2016). Comparison of positronium, positron and electron collisions with hydrogen at low velocities. Journal of Physics B: Atomic, Molecular and Optical Physics. 49, 114001.
Woods, D., Ward, S. J., Van Reeth, P. (2015). Detailed investigation of low-energy positronium-hydrogen scattering. Physical Review A. 92, 022713-1 -- 022713-17. http://journals.aps.prg/pra
Ward, S. J., Macek, J. H., (2014). Effect of a vortex in the triply differential cross section for electron impact K-shell ionization of carbon. 90, 062709. http://journals.aps.org/pra/
Quintanilla, S. J. (2010). Binding Energy and Structure of e^+Na,.
Quintanilla, S. J. (2009). "Absolute Cross Section for Positron-Impact Ionization of Hydrogen Near Threshold".
Quintanilla, S. J. (2008). "Near-ThresholdPositron Impact Ionization of Hydrogen".
Quintanilla, S. J. (2007). "Optimizing the Paths for Including the Correction Term to the Hyperspherical Hidden Crossing Method: Application to Formationine+ -Li Collisions".
Quintanilla, S. J. (2007). "The Photodetachmentof Ps− and Low-Energye+ -H Collisions".
Quintanilla, S. J. (2006). "Binding Energy and Structure of e+ Li and e− Li using a Parametric Model Potential".
Quintanilla, S. J. (2005). "PositroniumFormation Cross Section forPositron-Lithium Collisions".
Quintanilla, S. J. (2004). "E ff ect of the Core Polarization Term on Ps Formation in Low-Energy e+ -Li Collisions".
Quintanilla, S. J. (2004). "E ff ectofPolarizationon Photodetachment Thresholds".
Quintanilla, S. J. (2003). "ApplicationoftheHyperspherical Hidden Crossing MethodtoPositron-Lithium Collisions".
Quintanilla, S. J. (2002). "Positronium Formation in Low-Energy Positron Collisions with One-and Two-Electron Atoms".
Quintanilla, S. J. (2002). "The E ff ect of thePolarizationPotential on Low-EnergyAtomic Processes".
Quintanilla, S. J. (2000). "E ff ective Range Analysis of Positron-Hydrogen Collisions".
Quintanilla, S. J. (1999). "Applicationof the Hidden Crossing Method to Positronium Formation".
Other
Ward, S. J., Alrowaily, A. W., Reeth, P. V., (2018). Vortices for Ps formation in positron-hydrogen collisions Acceptance in the Ore Gap. Bulletin of the American Physical Society. 63(No. 5), T01 31 pg 189. American Physical Society. http://meetings.aps.org/Meeting/DAMOP18/Session/T01.31
Ward, S., Kent, J. B. (2017). Deep minimum in the Coulomb-Born TDCS for electron-impact ionization of atomic hydrogen. Bulletin of the American Physical Society. 62(Issue Number 10), 28 (GT1 1). http://meetings.aps.org/Meeting/GEC17/Session/GT1.1
Ward, S. J., Van Reeth, P., Alrowaily, A. W. (2017). Vortices for Ps formation in positron-hydrogen collisions. Bulletin of the American Physical Society. 62(Issue Number 8), 137 (K1 148). American Physical Society. http://meetings.aps.org/Meeting/DAMOP17/Session/K1.148
Popular Press Article
Quintanilla, S. J. (2008). "Absolute Cross Section forPositron Impact Ionization of Hydrogen Near Threshold".
Quintanilla, S. J. (2007). "Near ThresholdPositron Impact Ionization of Hydrogen".
Quintanilla, S. J. (2003). "The Application of the Hyperspherical Hidden Crossing Method toPositroniumFormation inPositron-Lithium Scattering".
Quintanilla, S. J. (2002). "Hyperspherical Hidden Crossing CalculationofPositron-Lithium Collisions".
Quintanilla, S. J. (2002). "Photodetachment of Alkali Negative Ions".
Quintanilla, S. J. (2001). "E ff ective Range Theory Analysis ofPositron-Helium Collisions".
Quintanilla, S. J. (2000). "Virtual State of thePositronium-Proton System".
Quintanilla, S. J. (1999). "Analysis of Positron-Hydrogen Collisions using an E ff ective Range Theory".
Quintanilla, S. J. (1998). "Hidden Crossing Method AppliedtoPositroniumFormation".
Quintanilla, S. J. (1998). "Hidden Crossing Theory Applied to Ps-formation inPositron-Hydrogen Collisions".
Quintanilla, S. J. (1997). "Anti-Capture to the Continuum via a Double Collision Mechanism in (e,2e) Collisions".
Quintanilla, S. J. (1997). "The Hidden Crossing Method Applied toPositroniumFormation".
Quintanilla, S. J. (1996). "The Hidden Crossing Method Applied to Positronium Formation".
Quintanilla, S. J. (1995). "Recent Developmentin the TheoryofFastPositron-Atom Collisions".
Quintanilla, S. J. (1994). "PositroniumFormationbyElectronic Capture from Hydrogenic Ions".
Quintanilla, S. J. (1994). "Single and Double Photoionizationof Helium".
Quintanilla, S. J. (1994). "WaveFunctionsforContinuum Statesof ChargedFragments".
Quintanilla, S. J. (1991). "A Variational Principle for Time-Dependent Interactions".
Quintanilla, S. J. (1989). "Close-Coupling ApproachtoPositron Scattering for Lithium, Sodium andPotassium".
Quintanilla, S. J. (1989). "Close-Coupling CalculationsofLow-EnergyPositron-Alkali Collisions".
Quintanilla, S. J. (1989). "ResonancesinLow-EnergyPositron ScatteringfromLi,NaandK".
Quintanilla, S. J. (1988). "Close-coupling ApproachtoPositron Scattering fromPotassium".
Quintanilla, S. J. (1988). "Theoretical StudiesofLow-EnergyPositron-AlkaliAtom Scattering".
Quintanilla, S. J. (1987). "Elastic Scattering of Electrons (or Positrons) from Positronium and the Photodetachment of the Positronium Negative Ion".
Quintanilla, S. J. (1986). "The Photodetachment of the Negative Ion ofPositronium (Ps−)".
Quintanilla, S. J. (1985). "The ScatteringofLow-Energy S-Wave ElectronsbyPositronium".

Awarded Grants

Contracts, Grants and Sponsored Research

Grant - Research
Ward (Quintanilla), S. J. (Principal), "Theoretical Investigation of Low-Energy Positron and Positronium Collisions," Sponsored by National Science Foundation, Federal, $90992 Funded. (September 1, 2017August 31, 2021).
Ward Quintanilla, S., "Positronium-positronium scattering," Sponsored by Physics Department, University of North Texas, University of North Texas, $3469.02 Funded. (20172017).
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Overall
Summative Rating
Challenge and
Engagement Index
Response Rate

out of 5

out of 7
%
of
students responded
  • Overall Summative Rating (median):
    This rating represents the combined responses of students to the four global summative items and is presented to provide an overall index of the class’s quality. Overall summative statements include the following (response options include a Likert scale ranging from 5 = Excellent, 3 = Good, and 1= Very poor):
    • The course as a whole was
    • The course content was
    • The instructor’s contribution to the course was
    • The instructor’s effectiveness in teaching the subject matter was
  • Challenge and Engagement Index:
    This rating combines student responses to several SPOT items relating to how academically challenging students found the course to be and how engaged they were. Challenge and Engagement Index items include the following (response options include a Likert scale ranging from 7 = Much higher, 4 = Average, and 1 = Much lower):
    • Do you expect your grade in this course to be
    • The intellectual challenge presented was
    • The amount of effort you put into this course was
    • The amount of effort to succeed in this course was
    • Your involvement in course (doing assignments, attending classes, etc.) was
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