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Comment on A Lagrangian for DSR Particle and the Role of Noncommutativity

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 نشر من قبل Bruno Rizzuti
 تاريخ النشر 2010
  مجال البحث فيزياء
والبحث باللغة English
 تأليف B. F. Rizzuti




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In this work, we comment on two special points in the paper by S. Ghosh [Phys. Rev. D 74, 084019 (2006)]. First of all, the Lagrangian presented by the author does not describe the Magueijo- Smolin model of Doubly Special Relativity since it is equivalent to the Lagrangian of the standard free relativistic particle. We also show that the introduction of noncommutative structures is not relevant to the problem of Lorentz covariance in Ghosh formalism.



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