Speaker:

Dr. Ibrahim Mirza

University of Tennessee, Knoxville

Date: Wednesday, October 8th, 2025

Time: 11:00 a.m.

Location: Zoom online meeting

Are neutrinos their own antiparticles? Search for an extremely rare and yet unobserved nuclear transition−neutrinoless double-beta (0νββ) decay if observed would prove neutrinos and antineutrinos are the same—Majorana neutrino. 0νββ decay violates lepton number conservation and therefore provides a plausible scenario to interpret the matter-antimatter asymmetry in the Universe. Neutrino oscillation proves neutrinos are massive, but the absolute neutrino masses are yet unknown. 0νββ decay provide constrain or measure effective Majorana neutrino mass. The experimental search for 0νββ decay signal is extremely challenging since it requires a quasi-background-free experiment. The new experiment LEGEND-200 started collecting physics data and recently released first results. Next-generation ton-scale experiments—LEGEND-1000, nEXO, SNO+, CUPID, KamLAND2-Zen, and several small- and medium-scale experiments−NEXT-100, AMoRE-II, TIN.TIN, etc are planned.

Ibrahim Mirza earned PhD in experimental particle physics from The University of Tennessee Knoxville, United States. He worked on a neutrinoless double-beta decay experiment-LEGEND-1000. Ibrahim conducted his research at Oak Ridge National Laboratory. His work involves vacuum technology, developing low-radioactivity materials, cleanroom, 3D-printing, simulations and data analysis.

Time: Oct 8, 2025 11:00 AM Riyadh

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