Scientists Edge Closer to Discovering Elusive Higgsinos

Friday 07 March 2025


As scientists continue to explore the mysteries of the universe, they’ve been on the hunt for a new type of particle that could help us better understand the fundamental laws of physics. Recently, researchers have made significant progress in their search for higgsinos – hypothetical particles that are thought to be responsible for giving other particles mass.


Higgsinos are part of a larger family of particles called supersymmetry (SUSY), which proposes that each known particle has a heavier, undiscovered counterpart. SUSY was first introduced in the 1970s as an attempt to solve some of the problems with our current understanding of the universe, such as why some particles have mass while others don’t.


The search for higgsinos is particularly exciting because they’re thought to interact with other particles in a unique way. By studying these interactions, scientists can gain insight into the fundamental forces that shape our universe. To do this, researchers use powerful particle colliders like the Large Hadron Collider (LHC) to smash protons together at incredibly high energies.


When these collisions occur, they create a shower of subatomic particles that scientists then study to see if they contain any signs of higgsinos. One way they do this is by analyzing the patterns of energy and momentum in these particles, which can reveal whether they’re interacting with each other in ways that are consistent with the presence of higgsinos.


In recent years, several experiments have reported tantalizing hints of higgsino-like signals, but these findings haven’t been conclusively confirmed. Now, a new study has shed light on this mystery by using advanced machine learning techniques to analyze large datasets from previous LHC runs.


The researchers used a type of neural network called a graph neural network (GNN) to identify patterns in the data that might be indicative of higgsino production. This approach allowed them to sift through vast amounts of information and pinpoint potential signals that might have been missed by traditional methods.


By applying their GNN algorithm to datasets from previous LHC runs, the team was able to identify a number of events that could potentially be attributed to higgsino production. While these findings are still preliminary, they offer exciting possibilities for future research and could help scientists get closer to understanding the properties of higgsinos.


The search for higgsinos is an ongoing effort, and scientists will need to continue collecting data and refining their analysis techniques before they can say with certainty whether these particles exist.


Cite this article: “Scientists Edge Closer to Discovering Elusive Higgsinos”, The Science Archive, 2025.


Higgsinos, Supersymmetry, Particle Physics, Large Hadron Collider, Machine Learning, Graph Neural Network, Subatomic Particles, Fundamental Forces, Particle Colliders, Energy And Momentum


Reference: Rameswar Sahu, Debabrata Sahoo, Kirtiman Ghosh, “Advancing Higgsino Searches by Integrating ML for Boosted Object Tagging and Event Selection” (2025).


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