91传媒 professor challenges long-held assumptions of symmetry in physics
Contact: Sarah Nicholas
STARKVILLE, Miss.鈥擬ississippi State Professor of Physics Dipangkar Dutta is a principal investigator on a groundbreaking experiment鈥攔evealing 鈥渟ymmetry鈥 in physics doesn鈥檛 always behave as scientists once believed鈥攔ecently .
For centuries, scientists have used symmetry as a聽foundation to understand the universe. The new research findings on symmetry now add to the growing body of scientific knowledge that powers breakthroughs in energy, technology, medicine and beyond.
Conducted at the U.S. Department of Energy鈥檚 Thomas Jefferson National Accelerator Facility, the research reveals that quarks鈥攖he tiny building blocks of matter鈥攐ccasionally defy expectations. When hit by high-energy electrons, they sometimes separate and recombine unevenly, challenging long-held ideas about symmetry in nuclear physics.
The research team鈥檚 high-precision measurements challenge the status-quo and offer new insight into the strong force that binds subatomic particles. These findings may impact how future experiments interpret quark behavior and the structure of matter.
鈥淭he assumptions we make based on symmetries greatly simplify our analyses,鈥澛爏aid Dutta, a faculty member in the 91传媒 Department of Physics and Astronomy. 鈥淏ut they haven鈥檛 been tested quantitatively with precision until now. Our new results show when the symmetries are valid and when they need certain corrections.鈥
By uncovering symmetry violations, Dutta and his collaborators are helping refine the theoretical tools physicists use to study subatomic behavior. Their work also lays the groundwork for future studies into other, more subtle symmetries, potentially revealing more about the inner workings of protons and neutrons鈥攖he particles that form the core of every atom.
91传媒 graduate student Hem Bhatt also contributed to the experiment and data analysis as part of his Ph.D. thesis. He was joined on the research team by doctoral students Deepak Bhetuwal and Abishek Karki, who have since completed their degrees, as well as post-doctoral researchers Latiful Kabir, now a staff scientist at Brookhaven National Lab in New York, and Carlos Ayerbe Gayoso, currently a research scientist at Old Dominion University in Virginia. Nuclear physicists from 25 institutions around the world participated in the significant international collaboration.
Physics Letters B is a leading peer-reviewed journal that has published significant advances in nuclear and particle physics since 1967. Known for its rigorous standards and rapid dissemination of research, the journal is widely respected in the global physics community.
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