String Theory and the Velo–Zwanziger problem
✍ Scribed by Massimo Porrati; Rakibur Rahman; Augusto Sagnotti
- Book ID
- 116798184
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 326 KB
- Volume
- 846
- Category
- Article
- ISSN
- 0550-3213
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## Abstract We discuss recent developments on the solution of the so‐called supersymmetric μ‐problem in the context of heterotic orbifolds. In particular, an approximate R symmetry can induce an admissible μ‐term in Minkowski vacua of orbifold models with the MSSM spectrum. A natural solution to th
Transverse vibrations of a string moving with time-dependent velocity v(t) have been investigated. Analytical solutions of the problem are found using the systematic approach of Lie group theory. Group classi"cation with respect to the arbitrary velocity function has been performed using a newly dev