# Pran Nath

**Degrees//Education**

PhD, Stanford University, 1964

**Area(s) of Expertise**

Theoretical Elementary Particle Physics

**Research Interests**

Professor Nath is co-author of the “first supergravity” theory with Arnowitt [Phys. Lett.B56, 177 (1975)] and with Arnowitt and Zumino [B56, 81, 1975]. He is co-author of the invention of mSUGRA model with Chamseddine and Arnowitt [Phys. Rev. Lett. 49, 970 (1982)]. mSUGRA is currently a leading candidate for discovery at the Tevatron and at the Large Hadron Collider. His other contributions include proposal of the trileptonic signal for discovery of supersymmetry (Mod. Phys. Lett. A2, (1987) 331), the first computation of supersymmetric contributions to the anomalous magnetic moment of the muon (Z. Phys. C26, 407 (1984)), discovery of a new branch (the hyperbolic branch) of radiative breaking of the electroweak symmetry (Phys. Rev. D58, 096004 (1998)), suppression of CP violation effects and the cancellation mechanism in supersymmetry (Phys. Rev. Lett. 66, 2565 (1991); Phys. Rev. D58, 111301 (1998)), the first precision analyses of sparticle spectrum and of the relic density (Phys. Rev. Lett. 69, 725 (1992), Phys. Rev. Lett. 70, 3696 (1993)), and the first complete analysis of proton decay in SUGRA models (Phys. Rev. D32, 2348 (1985)).

His other contributions include development of the effective Lagrangian approach to pion physics, solution to the notorious U(1) problem (Phys. Rev. D23, 473 (1981)), contemporaneous to the work of Veneziano and Witten, the first analytic computation of SO(10) interactions (Phys. Lett. B 506, 68 (2001), Nucl. Phys. B618, 138 (2001)), and more recently the Stueckelberg extension of the Standard Model and of the MSSM (Phys. Lett. B 586, 366 (2004), Nucl. Phys. B681, 77 (2004)).

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216 Dana Research Center

### 3Qs: Detection of gravitational waves ‘opens a new window to the study of the universe’

On Thursday, a team of scientists announced they had detected gravitational waves, ripples of energy across space-time sparked by the merging of two black holes. Northeastern physicist Pran Nath discusses the impact of the major breakthrough.

### Professor’s Paper of the Week shows evolution of particle physics

A recent paper by Pran Nath, Distinguished Professor of Physics, was chosen as Paper of the Week on Physica Scripta, Journal of the Royal Swedish Academy of Sciences.