University of Connecticut

Events Calendar

Graduate Student Seminar

Friday, December 3, 2021
12:15pm – 1:15pm

Storrs Campus

Undergraduate student N. Zimmerman and Prof. M. Gai, Department of Physics, University of Connecticut

GEANT4, a simulation toolkit

GEANT4, is an elementary toolkit for the simulation of the passage of particles through matter [1] with applications in high energy, nuclear and accelerator physics, as well as studies in medical and space science.

Data stored "on tape" collected at Duke University in 2012, using our optical readout time projection chamber (O-TPC) detector, was analyzed by our research group. It allowed us to address the central problem of Stellar Evolution: the C/O ratio at the end of helium burning. This research was published [2]. A more palatable review of our research intended for the non-experts [3]; for example, a Type II supernova progenitor star with C/O 1 leaves behind a neutron star.

[1] J. Allison et al., Nuclear Instruments and Methods in Physics Research A 835 (2016) 186-225,

[2] Robin Smith, Moshe Gai, Sarah R. Stern, Deran K. Schweitzer and Mohammad W. Ahmed, Nature Communications, 12(2021)5920.

[3] Moshe Gai and Robin Smith, Shinning a Light on Nuclear Astrophysics, The Innovation Platform,


Prof. V. Kharchenko

Physics Department (primary), UConn Master Calendar

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