Andreas Kronfeld is a theoretical physicist at Fermi National Accelerator Laboratory in Batavia, Illinois, USA. He received his PhD in 1985 from Cornell University, studying under G. Peter Lepage. From 1985–1988 he was a postdoctoral researcher at the Deutsches Elektronen Synchrotron (DESY) in Hamburg, Germany. He has been at Fermilab since 1988, first as a postdoc and since 1989 as a staff member. He has been very active in developing the numerical technique of lattice gauge theory (a formulation of quantum field theory) and applying it to problems needed to interpret experiments in elementary particle physics. During his career, he has also been active in examining the physics opportunities of possible future particle accelerators, such as e+e– colliders (e.g., ILC) and high-intensity proton linacs (e.g., Project X).
Selected Awards
2013, Fellow of the American Association for the Advancement of Science
2013, Fermilab Exceptional Performance Recognition Award (for the Project X Physics Book)
2002, Fellow of the American Physical Society
2001, Foreign Professor, Tsukuba University
1996, Visiting Scientist, Nordita, Copenhagen
Research Interests
To interpret many experiments in particle physics, it is necessary to carry out theoretical calculations of properties of hadrons. The modern theory explaining these particles’ behavior is quantum chromodynamics (QCD), a quantum field theory with many intriguing properties. In many cases, the only way to obtain the needed information is with numerical techniques using a formulation of quantum field theory on a spacetime lattice. Thus, this research touches both high-performance computing, to generate numerical data for QCD, and theoretical work, to turn the data into physical results. My work in this area has been devoted to improving our knowledge of the standard model of particle physics, to enable experiments to search for phenomena lying beyond the standard model.
Selected Publications
Bazavov, A.; Bernard, C.; Bouchard, C.; DeTar, C.; Du, D.; El-Khadra, A.X.; Foley, J.; Freeland, E.D.; Gámiz, E.; Gottlieb, S.; Heller, U.M.; Kim, J.; Kronfeld, A.S.; Laiho, J.; Levkova, L.; Mackenzie, P.B.; Neil, E.T.; Oktay, M.B.; Qiu, Si-Wei; Simone, J.N.; Sugar, R.; Toussaint, D.; Van de Water, R.S.; Zhou, Ran: Determination of |Vus| from a lattice-QCD calculation of the K → πlν semileptonic form factor with physical quark masses. Physical Review Letters 112, 2014.
Bailey, Jon A.; Bazavov, A.; Bernard, C.; Bouchard, C. M.; DeTar, C.; Du, Daping; El-Khadra, A. X.; Foley, J.; Freeland, E. D.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Kim, Jongjeong; Kronfeld, A. S.; Laiho, J.; Levkova, L.; Mackenzie, P. B.; Meurice, Y.; Neil, E. T.; Oktay, M. B.; Qiu, Si-Wei; Simone, J. N.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Zhou, Ran: Refining New-Physics Searches in B → D τ ν with Lattice QCD. Phys. Rev. Lett. 109 (7), 2012.
Dobrescu, Bogdan A.; Kronfeld, Andreas S.: Accumulating Evidence for Nonstandard Leptonic Decays of D s Mesons. Phys. Rev. Lett. 100 (24), 2008.
Aubin, C.; Bernard, C.; DeTar, C.; Di Pierro, M.; Freeland, E. D.; Gottlieb, Steven; Heller, U. M.; Hetrick, J. E.; El-Khadra, A. X.; Kronfeld, A. S.; Levkova, L.; Mackenzie, P. B.; Menscher, D.; Maresca, F.; Nobes, M.; Okamoto, M.; Renner, D.; Simone, J.; Sugar, R.; Toussaint, D.; Trottier, H. D.: Charmed-Meson Decay Constants in Three-Flavor Lattice QCD. Phys. Rev. Lett. 95 (12), 2005.
Allison, Ian F.; Davies, Christine T. H.; Gray, Alan; Kronfeld, Andreas S.; Mackenzie, Paul B.; Simone, James N.: Mass of the B c Meson in Three-Flavor Lattice QCD. Phys. Rev. Lett. 94 (17), 2005.
Aubin, C.; Bernard, C.; DeTar, C.; DiPierro, M.; El-Khadra, A.; Gottlieb, Steven; Gregory, E. B.; Heller, U. M.; Hetrick, J.; Kronfeld, A. S.; Mackenzie, P. B.; Menscher, D.; Nobes, M.; Okamoto, M.; Oktay, M. B.; Osborn, J.; Simone, J.; Sugar, R.; Toussaint, D.; Trottier, H. D.: Semileptonic Decays of D Mesons in Three-Flavor Lattice QCD. Phys. Rev. Lett. 94 (1), 2005.
Kronfeld, Andreas S.: Application of heavy-quark effective theory to lattice QCD: Power corrections. Physical Review D 62 (1), 2000.
Di Giacomo, A.; Lucini, B.; Montesi, M.; Paffuti, G.: Monopole condensation and color confinement. Nuclear Physics B - Proceedings Supplements 73 (1-3), 1999, 524-526.
El-Khadra, Aida X.; Kronfeld, Andreas S.; Mackenzie, Paul B.: Massive fermions in lattice gauge theory. Physical Review D 55 (7), 1997, 3933-3957.
Kronfeld, A.S.; Schierholz, G.; Wiese, U.-J.: Topology and dynamics of the confinement mechanism. Nuclear Physics B 293, 1987, 461-478.
Batrouni, G. G.; Katz, G. R.; Kronfeld, A. S.; Lepage, G. P.; Svetitsky, B.; Wilson, K. G.: Langevin simulations of lattice field theories. Physical Review D 32 (10), 1985, 2736-2747.
DeTar, Carleton; Kronfeld, Andreas S.; Lee, Song-haeng; Mohler, Daniel; Simone, James N.;: Splittings of low-lying charmonium masses at the physical point. Physical Review D 99 (3), 2019 more…BibTeX
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2018
Avilés-Casco, Alejandro Vaquero; DeTar, Carleton; Du, Daping; El-Khadra, Aida; Kronfeld, Andreas; Laiho, John; Van de Water, Ruth S.: B → D*lv at non-zero recoil. EPJ Web of Conferences 175, 2018, 13003 more…BibTeX
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Bazavov, A.; Bernard, C.; Bouchard, C. M.; Chang, C. C.; DeTar, C.; Du, D.; El-Khadra, A. X.; Freeland, E. D.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Kronfeld, A. S.; Laiho, J.; Mackenzie, P. B.; Neil, E. T.; Simone, J. N.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Zhou, R.;: Short-distance matrix elements for D0 -meson mixing from Nf=2+1 lattice QCD. Physical Review D 97 (3), 2018 more…BibTeX
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Bazavov, A.; Bernard, C.; Brambilla, N.; Brown, N.; DeTar, C.; El-Khadra, A. X.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Komijani, J.; Kronfeld, A. S.; Laiho, J.; Mackenzie, P. B.; Neil, E. T.; Simone, J. N.; Sugar, R. L.; Toussaint, D.; Vairo, A.; Van de Water, R. S.;: Up-, down-, strange-, charm-, and bottom-quark masses from four-flavor lattice QCD. Physical Review D 98 (5), 2018 more…BibTeX
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Bazavov, A.; Bernard, C.; Brown, N.; DeTar, C.; El-Khadra, A. X.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Komijani, J.; Kronfeld, A. S.; Laiho, J.; Mackenzie, P. B.; Neil, E. T.; Simone, J. N.; Sugar, R. L.; Toussaint, D.; Van de Water, R. S.;: B - and D -meson leptonic decay constants from four-flavor lattice QCD. Physical Review D 98 (7), 2018 more…BibTeX
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Brambilla, N.; Komijani, J.; Kronfeld, A. S.; Vairo, A.;: Relations between heavy-light meson and quark masses. Physical Review D 97 (3), 2018 more…BibTeX
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Chakraborty, B.; Davies, C. T. H.; DeTar, C.; El-Khadra, A. X.; Gámiz, E.; Gottlieb, Steven; Hatton, D.; Koponen, J.; Kronfeld, A. S.; Laiho, J.; Lepage, G. P.; Liu, Yuzhi; Mackenzie, P. B.; McNeile, C.; Neil, E. T.; Simone, J. N.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Vaquero, A.;: Strong-Isospin-Breaking Correction to the Muon Anomalous Magnetic Moment from Lattice QCD at the Physical Point. Physical Review Letters 120 (15), 2018 more…BibTeX
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Gelzer, Zechariah; Bernard, C.; Tar, C. De; El-Khadra, AX; Gámiz, E.; Gottlieb, Steven; Kronfeld, Andreas S.; Liu, Yuzhi; Meurice, Y.; Simone, J.N.; Toussaint, D.; Water, R.S. Van de; Zhou, R.: Semileptonic B-meson decays to light pseudoscalar mesons on the HISQ ensembles. EPJ Web of Conferences 175, 2018, 13024 more…BibTeX
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Liu, Yuzhi; Bailey, Jon A.; Bazavov, A.; Bernard, C.; Bouchard, C. M.; DeTar, C.; Du, Daping; El-Khadra, A. X.; Freeland, E. D.; Gámiz, E.; Gelzer, Z.; Gottlieb, Steven; Heller, U. M.; Kronfeld, A. S.; Laiho, J.; Mackenzie, P. B.; Meurice, Y.; Neil, E. T.; Simone, J. N.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Zhou, Ran: Bs → Kℓv form factors with 2+1 flavors. EPJ Web of Conferences 175, 2018, 13008 more…BibTeX
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2017
Bailey, Jon A.; DeTar, Carleton; Jang, Yong-Chull; Kronfeld, Andreas S.; Lee, Weonjong; Oktay, Mehmet B.: Heavy-quark meson spectrum tests of the Oktay–Kronfeld action. The European Physical Journal C 77 (11), 2017 more…BibTeX
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Gottlieb, Steven; Primer, Thomas; Bazavov, Alexei; Bernard, Claude; DeTar, Carleton; Du, Daping; El-Khadra, Aida X.; Freeland, Elizabeth D.; Gamiz, Elvira; Heller, Urs M.; Komijani, Javad; Kronfeld, Andreas S.; Laiho, John; Mackenzie, Paul B.; Neil, Ethan T.; Simone, James N.; Sugar, Robert L.; Toussaint, Doug; Van de Water, Ruth S.; Zhou, Ran;: D meson semileptonic form factors with HISQ valence and sea quarks. Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), Sissa Medialab, 2017 more…BibTeX
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Kronfeld, Andreas; Chang, Chia Cheng; Bouchard, Chris; El-Khadra, Aida X; Freeland, Elizabeth; Gamiz, Elvira; Laiho, Jack; Neil, Ethan T; Simone, James; Van de Water, Ruth;: $D$-meson Mixing in 2+1-Flavor Lattice QCD. Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), Sissa Medialab, 2017 more…BibTeX
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2016
Bailey, Jon A.; Bazavov, A.; Bernard, C.; Bouchard, C. M.; DeTar, C.; Du, Daping; El-Khadra, A. X.; Foley, J.; Freeland, E. D.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Jain, R. D.; Komijani, J.; Kronfeld, A. S.; Laiho, J.; Levkova, L.; Liu, Yuzhi; Mackenzie, P. B.; Meurice, Y.; Neil, E. T.; Qiu, Si-Wei; Simone, J. N.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Zhou, Ran;: B→Kl+l−decay form factors from three-flavor lattice QCD. Physical Review D 93 (2), 2016 more…BibTeX
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Bazavov, A.; Bernard, C.; Bouchard, C. M.; Chang, C. C.; DeTar, C.; Du, Daping; El-Khadra, A. X.; Freeland, E. D.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Kronfeld, A. S.; Laiho, J.; Mackenzie, P. B.; Neil, E. T.; Simone, J.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Zhou, Ran;: B(s)0-mixing matrix elements from lattice QCD for the Standard Model and beyond. Physical Review D 93 (11), 2016 more…BibTeX
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Brambilla, Nora; Krein, Gastão; Tarrús Castellà, Jaume; Vairo, Antonio: Long-range properties of1Sbottomonium states. Physical Review D 93 (5), 2016 more…BibTeX
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Gamiz, Elvira; Bazavov, Alexei; Bernard, Claude; DeTar, Carleton; Du, Daping; El-Khadra, Aida X; Freeland, Elizabeth; Gottlieb, Steven; Heller, Urs M.; Komijani, Javad; Kronfeld, Andreas; Laiho, John; Mackenzie, Paul B.; Neil, Ethan T; Primer, Thomas; Simone, James; Sugar, Robert; Toussaint, Doug; Van de Water, Ruth; Zhou, Ran;: Kaon semileptonic decays with $N_f=2+1+1$ HISQ fermions and physical light quark masses. Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), Sissa Medialab, 2016 more…BibTeX
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Jang, Yong-Chull; Bailey, Jon; Lee, Weonjong; DeTar, Carleton; Kronfeld, A. S.; Oktay, Mehmet B.: Update on the Heavy-Meson Spectrum Tests of the Oktay--Kronfeld Action. Proceedings of The 33rd International Symposium on Lattice Field Theory — PoS(LATTICE 2015), Sissa Medialab, 2016 more…BibTeX
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Komijani, Javad; Bazavov, Alexei; Bernard, C.; Brambilla, N.; Brown, N.; DeTar, C.; Du, D.; El-Khadra, A.X.; Freeland, E.D.; Gámiz, E.; Gottlieb, Steven; Heller, U.M.; Kronfeld, A.S.; Laiho, J.; Mackenzie, P.B.; Monahan, C.; Na, Heechang; Neil, E.T.; Simone, J.N.; Sugar, R.L.; Toussaint, D.; Vairo, A.; Van~de~Water, R.S.;: Decay constants $f_B$ and $f_{B_s}$ and quark masses $m_b$ and $m_c$ from HISQ simulations. Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), Sissa Medialab, 2016 more…BibTeX
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Meyer, Aaron; Hill, Richard; Kronfeld, Andreas; Li, Ruizi; Simone, James: The Nucleon Axial Form Factor from HISQ. Proceedings of 34th annual International Symposium on Lattice Field Theory — PoS(LATTICE2016), Sissa Medialab, 2016 more…BibTeX
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Primer, Thomas; Toussaint, Doug; Bernard, Claude; Komijani, Javad; DeTar, Carleton; El-Khadra, Aida; Gamiz, Elvira; Kronfeld, Andreas; Simone, James; Van de Water, Ruth: D meson semileptonic form factors at zero momentum transfer in 2+1+1 flavor lattice QCD. Proceedings of The 33rd International Symposium on Lattice Field Theory — PoS(LATTICE 2015), Sissa Medialab, 2016 more…BibTeX
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2015
A. Bazavov, C. Bernard, C. Bouchard, N. Brown, C. DeTar, D. Du, A.X. El-Khadra, E.D. Freeland, E. Gámiz, S. Gottlieb, U.M. Heller, J. Komijani, A.S. Kronfeld, J. Laiho, L. Levkova, P. B. Mackenzie, C. Monahan, T. Primer, H. Na, E.T. Neil, J.N. Simone, R.L. Sugar, D. Toussaint, R. S. Van de Water, R. Zhou: Decay constants fB and fBs from HISQ simulations. 33rd International Symposium on Lattice Field Theory, LATTICE 2015, 2015 more…BibTeX
Bailey, Jon A.; Bazavov, A.; Bernard, C.; Bouchard, C. M.; DeTar, C.; Du, Daping; El-Khadra, A. X.; Foley, J.; Freeland, E. D.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Komijani, J.; Kronfeld, A. S.; Laiho, J.; Levkova, L.; Mackenzie, P. B.; Neil, E. T.; Qiu, Si-Wei; Simone, J.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Zhou, Ran;: B→Dℓνform factors at nonzero recoil and|Vcb|from2+1-flavor lattice QCD. Physical Review D 92 (3), 2015 more…BibTeX
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Bailey, Jon A.; Bazavov, A.; Bernard, C.; Bouchard, C. M.; DeTar, C.; Du, Daping; El-Khadra, A. X.; Freeland, E. D.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Kronfeld, A. S.; Laiho, J.; Levkova, L.; Liu, Yuzhi; Lunghi, E.; Mackenzie, P. B.; Meurice, Y.; Neil, E.; Qiu, Si-Wei; Simone, J. N.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Zhou, Ran;: B→πllForm Factors for New Physics Searches from Lattice QCD. Physical Review Letters 115 (15), 2015 more…BibTeX
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Bailey, Jon. A.; Bazavov, A.; Bernard, C.; Bouchard, C. M.; DeTar, C.; Du, D.; El-Khadra, A. X.; Foley, J.; Freeland, E. D.; Gámiz, E.; Gottlieb, Steven; Heller, U. M.; Komijani, J.; Kronfeld, A. S.; Laiho, J.; Levkova, L.; Liu, Yuzhi; Mackenzie, P. B.; Meurice, Y.; Neil, E.; Qiu, Si-Wei; Simone, J. N.; Sugar, R.; Toussaint, D.; Van de Water, R. S.; Zhou, R.;: |Vub|fromB→πℓνdecays and (2+1)-flavor lattice QCD. Physical Review D 92 (1), 2015 more…BibTeX
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El-Khadra, Aida X; Freeland, Elizabeth; Bouchard, Chris; Bernard, C.; Chang, Chia Cheng; Gamiz, Elvira; Kronfeld, A. S.; Laiho, Jack; Van de Water, Ruth: Neutral B-meson mixing parameters in and beyond the SM with 2+1 flavor lattice QCD. Proceedings of The 32nd International Symposium on Lattice Field Theory — PoS(LATTICE2014), Sissa Medialab, 2015 more…BibTeX
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Mohler, Daniel; DeTar, Carleton; Kronfeld, Andreas; Lee, Song-haeng; Levkova, Ludmila; Simone, J. N.: Low lying charmonium states at the physical point. Proceedings of The 32nd International Symposium on Lattice Field Theory — PoS(LATTICE2014), Sissa Medialab, 2015 more…BibTeX
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Neil, Ethan T; Kronfeld, Andreas; Van de Water, Ruth; Simone, James: Leptonic B and D decay constants with 2+1 flavor asqtad fermions. Proceedings of The 32nd International Symposium on Lattice Field Theory — PoS(LATTICE2014), Sissa Medialab, 2015 more…BibTeX
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2014
Bazavov, A.; Bernard, C.; Bouchard, C.; DeTar, C.; Du, D.; El-Khadra, A.X.; Foley, J.; Freeland, E.D.; Gámiz, E.; Gottlieb, S.; Heller, U.M.; Kim, J.; Kronfeld, A.S.; Laiho, J.; Levkova, L.; Mackenzie, P.B.; Neil, E.T.; Oktay, M.B.; Qiu, Si-Wei; Simone, J.N.; Sugar, R.; Toussaint, D.; Van de Water, R.S.; Zhou, Ran: Determination of |Vus| from a lattice-QCD calculation of the K → πlν semileptonic form factor with physical quark masses. Physical Review Letters 112, 2014 more…BibTeX
Du, Daping; Bailey, Jon; Bazavov, Alexei; Bernard, Claude; El-Khadra, Aida X; Gottlieb, Steven; Jain, Rajendra; Kronfeld, Andreas; Laiho, Jack; Liu, Yuzhi; Mackenzie, Paul B.; Meurice, Yannick; Van de Water, Ruth; Zhou, Ran: $B\to\pi$ semileptonic form factors from unquenched lattice QCD. Proceedings of 31st International Symposium on Lattice Field Theory LATTICE 2013 — PoS(LATTICE 2013), Sissa Medialab, 2014 more…BibTeX
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