Revisiting Higher-Spin Gyromagnetic Couplings
arXiv:2102.13180 · doi:10.1007/JHEP06(2021)168
Abstract
We analyze Bosonic, Heterotic, and Type II string theories compactified on a generic torus having constant moduli. By computing the hamiltonian giving the interaction between massive string excitations and gauge fields arising from the graviton and Kalb-Ramond field upon compactification, we derive a general formula for such couplings that turns out to be universal in all these theories. We also confirm our result by explicitly evaluating the relevant string three-point amplitudes. From this expression, we determine the gyromagnetic ratio of massive string states coupled to both gauge-fields. For a generic mixed symmetry state, there is one gyromagnetic coupling associated with each row of the corresponding Young Tableau diagram. For all the states having zero Kaluza Klein or Winding charges, the value of turns out to be . We also explicitly consider totally symmetric and mixed symmetry states (having two rows in the Young diagram) associated with the first Regge-trajectory and obtain their corresponding value.
arXiv comment27+23 pages, 2 figures
References in corpus (23)
- Target Space Duality in String Theory
- Causality Constraints on Corrections to the Graviton Three-Point Coupling
- Black Hole Solutions in Heterotic String Theory on a Torus
- String Lessons for Higher-Spin Interactions
- On The Uniqueness of Minimal Coupling in Higher-Spin Gauge Theory
- General trilinear interaction for arbitrary even higher spin gauge fields
- Magnetic flux tube models in superstring theory
- Asymptotic level density in heterotic string theory and rotating black holes
- Exactly solvable string models of curved space-time backgrounds
- String Theory and The Velo-Zwanziger Problem
- Causal Propagation of a Charged Spin 3/2 Field in an External Electromagnetic Background
- Magnetic backgrounds and tachyonic instabilities in closed superstring theory and M-theory
- Consistent Non-Minimal Couplings of Massive Higher-Spin Particles
- Massive Higher Spin States in String Theory and the Principle of Equivalence
- Factorization in Graviton Scattering and the "Natural" Value of the g-factor
- How Large is the "Natural" Magnetic Moment?
- Wrapped Magnetized Branes: Two Alternative Descriptions?
- Dipole Moments of Black Holes and String States
- g=1 for Dirichlet 0-branes
- Soft Theorems from Compactification
- Holographic Constraints on a Vector Boson
- Comments on Higher-Spin Fields in Nontrivial Backgrounds
- New Sum Rules from Low Energy Compton Scattering on Arbitrary Spin Target