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High Energy Physics - Theory

arXiv:2211.13689 (hep-th)
[Submitted on 24 Nov 2022]

Title:Open Superstring First Mass Level Effective Lagrangian: Massive Spin-2 in an Electromagnetic Background

Authors:Karim Benakli, Cassiano A. Daniel, Wenqi Ke
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Abstract:Minimal coupling leads to problems such as loss of causality if one wants to describe charged particles of spin greater than one propagating in a constant electromagnetic background. Regge trajectories in string theory contain such states, so their study may allow us to investigate possible avenues to remedy the pathologies. We present here two explicit forms, related by field redefinitions, of the Lagrangian describing the bosonic states in the first massive level of open superstrings in four dimensions. The first one reduces, when the electromagnetic field is set to zero, to the Fierz-Pauli Lagrangian for the spin-2 mode. The second one is a more compact form which simplifies the derivation of a Fierz-Pauli system of equations of motion and constraints.
Comments: 11 pages
Subjects: High Energy Physics - Theory (hep-th); High Energy Physics - Phenomenology (hep-ph)
Cite as: arXiv:2211.13689 [hep-th]
  (or arXiv:2211.13689v1 [hep-th] for this version)
  https://doi.org/10.48550/arXiv.2211.13689
Related DOI: https://doi.org/10.1016/j.physletb.2023.137680

Submission history

From: Wenqi Ke [view email]
[v1] Thu, 24 Nov 2022 16:13:03 UTC (18 KB)
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