Jogesh Pati
Encyclopedia
Jogesh C. Pati is an Indian American
theoretical physicist
at the University of Maryland, College Park
.
s – quarks and leptons – and of their gauge forces force
: weak, electromagnetic, and strong. His formulation, carried out in collaboration with nobel laureate Abdus Salam
, of the original gauge theory of quark–lepton unification, and their resulting insight that violations of baryon
and lepton numbers, especially those that would manifest in proton decay
, are likely consequences of such a unification, provide cornerstones of modern particle physics today. The suggestions of Pati and Salam (The Pati-Salam model
) of the symmetry of SU(4)–color, left–right symmetry, and of the associated existence of right-handed neutrinos, now provide some of the crucial ingredients for understanding the observed masses of the neutrinos and their oscillations.
and Helen Quinn
).
Indian American
Indian Americans are Americans whose ancestral roots lie in India. The U.S. Census Bureau popularized the term Asian Indian to avoid confusion with Indigenous peoples of the Americas who are commonly referred to as American Indians.-The term: Indian:...
theoretical physicist
Theoretical physics
Theoretical physics is a branch of physics which employs mathematical models and abstractions of physics to rationalize, explain and predict natural phenomena...
at the University of Maryland, College Park
University of Maryland, College Park
The University of Maryland, College Park is a top-ranked public research university located in the city of College Park in Prince George's County, Maryland, just outside Washington, D.C...
.
Biography
Pati has made pioneering contributions to the notion of a unification of elementary particleElementary particle
In particle physics, an elementary particle or fundamental particle is a particle not known to have substructure; that is, it is not known to be made up of smaller particles. If an elementary particle truly has no substructure, then it is one of the basic building blocks of the universe from which...
s – quarks and leptons – and of their gauge forces force
Gauge theory
In physics, gauge invariance is the property of a field theory in which different configurations of the underlying fundamental but unobservable fields result in identical observable quantities. A theory with such a property is called a gauge theory...
: weak, electromagnetic, and strong. His formulation, carried out in collaboration with nobel laureate Abdus Salam
Abdus Salam
Mohammad Abdus Salam, NI, SPk Mohammad Abdus Salam, NI, SPk Mohammad Abdus Salam, NI, SPk (Urdu: محمد عبد السلام, pronounced , (January 29, 1926– November 21, 1996) was a Pakistani theoretical physicist and Nobel laureate in Physics for his work on the electroweak unification of the...
, of the original gauge theory of quark–lepton unification, and their resulting insight that violations of baryon
Baryon
A baryon is a composite particle made up of three quarks . Baryons and mesons belong to the hadron family, which are the quark-based particles...
and lepton numbers, especially those that would manifest in proton decay
Proton decay
In particle physics, proton decay is a hypothetical form of radioactive decay in which the proton decays into lighter subatomic particles, such as a neutral pion and a positron...
, are likely consequences of such a unification, provide cornerstones of modern particle physics today. The suggestions of Pati and Salam (The Pati-Salam model
Pati-Salam model
In physics, the Pati–Salam model is a Grand Unification Theory was proposed in 1974 by nobel laureate Abdus Salam and Jogesh Pati. The unification is based on there being four quark color charges, dubbed red, green, blue and violet , instead of the conventional three, with the new "violet" quark...
) of the symmetry of SU(4)–color, left–right symmetry, and of the associated existence of right-handed neutrinos, now provide some of the crucial ingredients for understanding the observed masses of the neutrinos and their oscillations.
Recognition
Pati, was awarded the Dirac Medal for his seminal contributions to a “Quest for Unification” in the year 2000 along with Howard GeorgiHoward Georgi
Howard Mason Georgi III, born January 6, 1947 in San Bernardino, California, is Harvard College Professor and Mallinckrodt Professor of Physics at Harvard University...
and Helen Quinn
Helen Quinn
Helen Rhoda Quinn is an Australian-born particle physicist. She went to school in Victoria, Australia and entered college at the University of Melbourne before moving to the USA and transferring to Stanford University. She received her Ph.D. from Stanford in 1967, at a time when less than 2% of...
).
External links
- University of Maryland Faculty Page
- Symposium in honor of Jogesh Pati's 65th birthday
- Dirac Medallists 2000