Presentations

Upcoming Talks

Past Talks

2026

111. APS Division of Particles and Fields (DPF)

plenary talk | USA | July 2026.
"Neutrino Physics at a Muon Collider Complex"

110. International Neutrino Summer School 2026

lectures | USA | June 2026.
"Beyond the Standard Model and Dark Sectors"

109. Neutrino 2026

plenary talk | USA | June 2026.
"Sterile Neutrino Theory "

108. New Physics Opportunities at Neutrino Facilities, NPN

plenary talk | USA | May 2026.
"New Opportunities to Search for New Particles at Neutrino Experiments"

107. Phenomenology Symposium 2026

plenary talk | USA | May 2026.
"Neutrino Physics Phenomenology"

106. APS Global Summit

invited talk | USA | March 2026.
"Neutrinos at Muon Colliders"

105. APS Global Summit

invited talk | USA | March 2026.
"Neutrino Facilities as Versatile Probes of New Physics"

104. NPC Mini-Workshop on Short-Baseline Neutrino Anomalies

invited talk | USA | January 2026.
"Theory Overview of Global Sterile Neutrino Status"

103. Fermilab Neutrino Seminar Series

invited talk | USA | January 2026.
"New Opportunities to Search for Long-Lived Particles at Neutrino Facilities"

2025

102. Violation of Fundamental Symmetries with B mesons

invited talk | USA | December 2025.
"Dark sector models at or below the electroweak scale"

101. Virginia Tech, Center for Neutrino Physics Research Day

invited talk | USA | December 2025.
"Neutrinos as a Window to Physics Beyond the Standard Model"

100. Columbia University

colloquium | USA | December 2025.
"Neutrinos as a Window to Physics Beyond the Standard Model"

99. University of Wisconsin, Madison

invited seminar | USA | December 2025.
"New Opportunities to Search for Long-Lived Particles"

98. Grinnell College

invited seminar | USA | November 2025.
"Neutrinos as a Window to Physics Beyond the Standard Model"

97. Good News: Neutrino Physics at a Muon Collider

invited talk | USA | October 2025.
"Review of neutrino physics at a muon collider"

96. Idaho State University

colloquium | USA | October 2025.
"Neutrinos as a Window to Physics Beyond the Standard Model"

95. Sydney-CPPC

invited seminar | Australia | October 2025.
"New Opportunities to Search for Long-Lived Particles"

93. Brookhaven National Laboratory

invited seminar | USA | October 2025.
"Neutrino spin precession from a majoron background"

92. NuFact 2025

WG5 convener (summary talk) | UK | September 2025.
"Working Group 5 convener"

91. 2nd US Muon Collider Meeting

plenary talk | USA | August 2025.
"Neutrinos Physics at Muon Colliders"

90. Neutrino University

lectures | USA | July 2025.
"New Physics with Neutrinos "

89. New Physics Opportunities at Neutrino Facilities Workshop (NPN 2025)

plenary talk | USA | June 2025.
"Exotic New Physics at the Intensity Frontier"

88. Interconnection between Particle Physics and Cosmology (PPC2025)

plenary talk | USA | June 2025.
"Searching for Light New Physics with Neutrinos"

87. CIPANP 2025

invited talk | USA | June 2025.
"Theory Overview of Short-Baseline Neutrino Physics"

86. Magnificent CEvNS 2025

invited talk | Brazil | June 2025.
"Oscillation Portals to New Physics in CEvNS"

84. Mitchell Conference at Texas A&M

invited talk | USA | May 2025.
"Neutron Portal to Ultra-High-Energy New Physics"

83. Argonne National Laboratory

invited seminar | USA | March 2025.
"Neutron Portal to Ultra-High-Energy New Physics"

82. Aspen Winter Conference

invited talk | USA | March 2025.
"The Neutrino Slice of Muon Colliders"

81. CERN Neutrino Platform Pheno Week

contributed talk | Switzerland | February 2025.
"Ultra-high-energy cosmogenic neutrinos from new physics"

2024

80. University of Iowa

invited seminar | USA | October 2024.
"The Neutrino Slice of Muon Colliders"

79. Northwestern University

invited seminar | USA | September 2024.
"Exotic Charged Lepton Flavor Violation at Mu3e and Mu2e"

78. Muon Collider meeting by the lake 2024

invited talk | USA | September 2024.
"Neutrino interactions at a muon collider"

77. NuFact 2024

invited talk | USA | September 2024.
"Working Group 5 convener"

76. Fermilab Theory Seminar

invited talk | USA | September 2024.
"Long-Lived Particles at Spallation Neutron Sources"

75. Inaugural US Muon Collider Community Meeting

contributed talk | USA | August 2024.
"Ideas for tangential physics at a muon collider detector"

74. Second School on Dark Matter and Neutrino Detection, ICTP-SAIFR

lectures | Brazil | July 2024.
"Neutrinos Beyond the Standard Model"

73. Neutrino 2024

contributed poster | Italy | June 2024.
"Long-Lived Particles at Spallation Neutron Sources"

72. Magnificent CEvNS

contributed talk | Spain | June 2024.
"Long-Lived Particles at Spallation Neutron Sources"

71. Mitchell Conference at Texas A&M

invited talk | USA | May 2024.
"Flavor-violating new physics at the intensity frontier"

69. 2nd Short-Baseline Experiment-Theory Workshop

invited talk | USA | April 2024.
"Beyond Sterile Neutrinos at Short-Baseline Experiments"

69. University of Iowa

colloquium | USA | January 2024.
"Into the Dark with Neutrinos"

2023

68. Muons in Minneapolis workshop

invited talk | USA | December 2023.
"Production of exotic particles at high-intensity muon facilities"

67. University of Massachusetts Ahmrest

invited seminar | USA | October 2023.
"Multiple Leptons from dark sectors at the intensity frontier"

66. Columbia University

invited seminar | USA | October 2023.
"Is there any room for 17 MeV bosons?"

65. PhenoBR 2023

invited talk | USA | June 2023.
"New Physics at Low Energies: Dark Photons"

64. American Physical Society (APS) April Meeting

invited talk | USA | April 2023.
"Neutrino Portals to Beyond the Standard Model"

63. California Institute for Technology

invited seminar | USA | April 2023.
"Dark Photons with Multiple Leptons"

62. NA64 collaboration seminar

invited talk | Switzerland | March 2023.
"Semi-Visible Dark Photons"

2022

61. PITT PACC Workshop: Nu Tools for BSM at Neutrino Beam Facilities

invited talk | USA | December 2022.
"Neutrino Experiments Beyond the Standard Model"

60. Northwestern University

invited seminar | USA | December 2022.
"Dark Neutrons Underground"

59. Los Alamos National Laboratory

invited seminar | USA | December 2022.
"New limits on heavy neutral leptons with dark forces from neutrino data"

58. Carleton University

invited seminar | Canada | November 2022.
"Semi-Visible Dark Photons"

57. Feebly Interacting Particles Workshop 2022

contributed talk | Switzerland | October 2022.
"New limits on heavy neutral leptons with dark forces from neutrino data"

56. ICTP Program on New Directions in Particle Physics

invited talk | Brazil | September 2022.
"Dark neutrino sectors in modern neutrino experiments"

55. CIPANP 2022

invited parallel talk | USA | September 2022.
"Simulating and constraining dark neutrino sectors"

54. TeVPA 2022

parallel talk | Canada | August 2022.
"The Semi-Visible Dark Photon"

53. Snowmass 2022

invited parallel talk | USA | July 2022.
"NF02 — Experimental Neutrino Anomalies Recent Theory Progress and Interpretations"

52. Neutrino Theory Workshop, NuTs

invited talk | Spain | June 2022.
"New limits on dark sectors in neutrino upscattering"

51. KITP, Interdisciplinary Developments in Neutrino Physics

plenary talk | USA | March 2022.
"Beyond the Standard Model Searches with Neutrinos"

50. University of Texas A&M

invited seminar | USA | March 2022.
"From Mini to Micro: New physics explanations of MiniBooNE at the MicroBooNE experiment"

49. University of Toronto

invited seminar | Canada | March 2022.
"From Mini to Micro: New physics explanations of MiniBooNE at the MicroBooNE experiment"

48. TRIUMF/University of Victoria

invited seminar | Canada | February 2022.
"From Mini to Micro: New physics explanations of MiniBooNE at the MicroBooNE experiment"

47. University of Kentucky

invited seminar | USA | January 2022.
"Neutrons shinning through walls"

2021

46. SLAC

invited seminar | USA | December 2021.
"New physics interpretations of the MiniBooNE excess at the MicroBooNE experiment"

45. Harvard University, family meeting

invited seminar | USA | November 2021.
"Hidden sector seesaws at the MiniBooNE and MicroBooNE experiments"

44. Brookhaven Forum 2021

contributed talk | USA | November 2021.
"Heavy neutrinos at hodoscopic detectors"

43. Virginia Tech, neutrino seminar

invited talk | USA | October 2021.
"The Secret Life of Heavy Neutrinos"

42. Perimeter Institute, particle physics seminar

invited seminar | Canada | September 2021.
"The Secret Life of Heavy Neutrinos"

41. UK Muon Collider and NuSTORM meeting

invited talk | UK | September 2021.
"Physics opportunities at vSTORM and ENUBET"

40. vSTORM collaboration meeting

invited talk | CERN | August 2021.
"New physics opportunities at vSTORM"

39. American Physics Society Division of Particles and Fields meeting

parallel talk | USA | July 2021.
"A last chance for kinetic mixing: Explaining the muon (g-2) with semi-visible dark photons"

38. McGill University

invited seminar | Canada | May 2021.

37. ETH, Zurich

invited seminar | Switzerland | April 2021.

36. C3P, UCLouvain

invited seminar | Belgium | April 2021.

35. American Physics Society April Meeting

parallel talk | USA | April 2021.

34. Carleton University

invited seminar | Canada | April 2021.

33. University of California Santa Cruz

invited seminar | USA | March 2021.

32. Neutrino Seminar, Fermilab

invited seminar | USA | March 2021.

31. XIX International Workshop on Neutrino Telescopes

parallel talk | Italy | February 2021.

2020

30. Snowmass Dark Sector Studies at High Intensities Frontier

invited talk | USA | December 2020.
"Snowmass Dark Sector Studies at High Intensities Frontier"

29. 3rd South American Dark Matter Workshop, ICTP

plenary talk | Brazil | October 2020.

28. Central American meeting of High Energy Physics, Cosmology and High Energy Astrophysics

plenary talk | Central America | November 2020.

27. PIKIMO 9, Kentucky

invited talk | USA | October 2020.

26. Snowmass Baryon and Lepton Number Violating Processes workshop

invited talk | USA | October 2020.
"Opportunities and signatures of non-minimal HNLs"

25. Snowmass Theory of neutrino physics mini-workshop

invited talk | USA | September 2020.
"Opportunities and signatures of non-minimal HNLs"

24. Snowmass Neutrino Frontier 03 kick-off meeting

invited talk | USA | September 2020.

23. ICHEP 2020

parallel talk | Czech Republic | July 2020.

22. Neutrino 2020, University of Chicago

parallel talk | USA | June 2020.

21. JGU Theorie Palaver, Mainz

invited seminar | Germany | June 2020.

20. Phenomenology Symposium 2020, Pittsburgh

parallel talk | USA | May 2020.

19. Brookhaven Neutrino Theory Virtual Seminars

invited seminar | USA | May 2020.

18. Fermilab Theory Seminar

invited seminar | USA | February 2020.

2019

17. NuPhys 2019

plenary talk | UK | December 2019.
"Heavy Neutral Leptons and Non-Minimal Dark Sectors"

16. CERN Neutrino Platform Week 2019

plenary talk | Switzerland | October 2019.
"A Light Dark Neutrino Sector"

15. Columbia University

invited seminar | USA | August 2019.
"A light dark neutrino sector"

14. MicroBooNE collaboration call

invited seminar | USA | August 2019.
"A light dark neutrino sector"

13. Invisibles Workshop 2019, Valencia

parallel talk | Spain | June 2019.
"A light dark neutrino sector"

12. Neutrino Theory Network Workshop, Washington U., St Louis

invited talk | USA | May 2019.
"New physics in rare neutrino processes"

11. IFIC, Valencia

invited seminar | Spain | May 2019.
"A light dark neutrino sector"

10. Prospects of Neutrino Physics, IPMU

plenary talk | Japan | April 2019.
"New physics in rare neutrino processes"

9. Queen Mary University of London

invited seminar | UK | March 2019.
"A light dark neutrino sector"

2018

8. Physics Opportunities at the Near Detector of DUNE (PONDD), Fermilab

invited talk | USA | December 2018.
"New physics in neutrino scattering"

7. Max-Planck-Institut fur Kernphysik, Heidelberg

invited seminar | Germany | November 2018.
"Rare neutrino scattering probing new physics"

6. Neutrino Oscillation Workshop 2018

invited parallel talk | Italy | September 2018.
"Neutrino trident production at near detectors"

5. NuFact 2018, Virginia

invited parallel talk | USA | August 2018.
"Neutrino tridents at DUNE"

4. Near detector workshop 2018, CERN

invited talk | Switzerland | June 2018.
"Near detector physics with neutrino experiments"

3. Perimeter Institute

invited seminar | Canada | June 2018.
"Current status of short-baseline oscillations"

2. Phenomenology Symposium 2018

invited parallel talk | USA | May 2018.
"Leptophilic Z’s in neutrino scattering"

1. Fermilab Theory Seminar

invited seminar | USA | May 2018.
"Neutrino trident production at near detectors"

Matheus Hostert