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String Theory
All Roads Lead to String Theory (Polchinski)
Prior to the First Superstring Revolution
Early History S-Matrix Theory
Regge Trajectory
Bosonic String Theory Worldsheet
Bosonic String Theory
String Perturbation Theory
Tachyon Condensation
Supersymmetric Revolution Supersymmetry
RNS Formalism
GS Formalism
Superstring Revolutions
First Superstring Revolution GSO Projection
Type II String Theory
Type IIB String Theory
Type IIA String Theory
Type I String Theory
Type H String Theory
Type HO String Theory
Type HE String Theory
Second Superstring Revolution T-Duality
Horava-Witten String Theory
Holographic Principle
N=4 Super-Yang-Mills Theory
BFSS Matrix Theory
Matrix String Theory
(2,0) Theory
Twistor String Theory
String Field Theory
Pure Spinor Formalism
After the Revolutions
Phenomenology String Theory Landscape
Minimal Supersymmetric Standard Model
String Phenomenology

Piyush Kumar is a String Theorist at the Yale University who works in String Phenomenology.[1] He has recently been working in the properties of the string theory vacua, specifically the implications in particle physics, such as the prediction of the Higgs mass.[2]

In March 2013, the LHC had observed the Higgs at the ATLAS and CMS experiments, at a mass of $ 125 \frac{\operatorname{ GeV}}{c_0^2} $. Thus, the classes of String Theory Vacua which predict a drastically different Higgs mass are ruled out, narrowing down the String Theory Landscape.

ReferencesEdit this section

  1. Kumar, Piyush; Acharya, Bobby, S. (12/4/2012). "Compactified String Theories -- Generic Predictions for Particle Physics". International Journal of Modern Physics. 2012 27 (1): 1–30. doi:10.1142/S0217751X12300128. Retrieved 13 July 2013.
  2. Kumar, Piyush; Kane, Lu, Zheng (7/1/2008). "Higgs Mass Prediction for Realistic String/M Theory Vacua". Physics Review D.. 2008 132 (1): 1–8. doi:10.1103/PhysRevD.85.075026. Retrieved 13 July 2013.