Bhubanjyoti Bhattacharya
Lawrence Technological University, MI·Physics
The universe contains far more matter than antimatter, yet the Standard Model, the leading theory of particles and forces, gives no convincing reason why. Matter and antimatter are linked by a symmetry called Charge-Parity (CP).
- Fields
Physics
- Topics
CP violation
charge-parity symmetry
matter-antimatter asymmetry
- Grants
- 2 known grants, through Jul 2028
What they work on
- Use flavor-SU(3) and isospin symmetry, approximate symmetries among light quarks, to identify new observables in hadronic B and D meson decays and predict future measurements.
- Apply effective field theory to semileptonic heavy-meson decays to describe their decay distributions across multiple kinematic variables and spot deviations from the Standard Model.
- Test new-physics models with hypothetical particles such as leptoquarks, vectorlike fermions, axionlike and Higgs-like particles against heavy-meson decay data to find new sources of CP violation.
- Systematically characterize the effects of symmetry breaking and determine which new-physics scenarios best match observed deviations from Standard Model predictions.
More about the research
Explaining the imbalance therefore requires new physics that breaks CP symmetry much more than the Standard Model allows. This theory research hunts for such new sources of CP violation. It compares precise measurements of heavy particle decays with theory, looks for deviations, and builds models with hypothetical new particles that could explain them. Two linked grants, an earlier award and its continuation, cover the same program.
Why it matters
This is basic science aimed at one of physics' open puzzles: why the universe is made almost entirely of matter. Pinpointing where heavy-meson data depart from the Standard Model could reveal new particles and sources of CP violation and guide what future experiments measure.
Known grants
From NIH and NSF research grants. Labs often have other funding we can't see.
Closest labs
Andrea Shindler
University of California-Berkeley, CA·Physics
Calculate the electric dipole moments of protons and neutrons induced by theories beyond the Standard Model, to probe the source of the universe's matter-antimatter asymmetry.
Shirley Li
University of California-Irvine, CA·Physics·Early-career
Develop machine-learning frameworks that reduce the dominant theoretical uncertainties in neutrino-nucleus interaction models, improving long-baseline experiments that search for leptonic charge-parity (CP) violation.
Christopher Crawford
University of Kentucky, KY·Physics
Search for time-reversal symmetry violation by sending polarized neutrons through polarized nuclei, using low-energy neutron–nucleus resonances to amplify the effect, within the NOPTREX collaboration.
The school
Lawrence Technological University: 3 labs on PI Pages, $8M a year on research.
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