2016
DOI: 10.1103/physrevd.93.105021
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Bosonic structure of realistic SO(10) supersymmetric cosmic strings

Abstract: International audienceWe study the bosonic structure of F-term Nambu-Goto cosmic strings forming in a realistic SO(10) implementation, assuming standard hybrid inflation. We describe the supersymmetric grand unified theory, and its spontaneous symmetry breaking scheme in parallel with the inflationary process. We also write the explicit tensor formulation of its scalar sector, focusing on the subrepresentations singlet under the standard model, which is sufficient to describe the string structure. We then intr… Show more

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Cited by 9 publications
(7 citation statements)
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“…Given the definitions (6), this justifies the global sign in (1) in order to include the Nambu-Goto and chiral limiting cases for which κ → 0: the dimensionless function f must be assumed positive definite, f > 0. Similarly, the other stability criterion, with respect to longitudinal perturbations c 2 l ≥ 0, provides…”
Section: A Embedding In Background Spacetimementioning
confidence: 99%
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“…Given the definitions (6), this justifies the global sign in (1) in order to include the Nambu-Goto and chiral limiting cases for which κ → 0: the dimensionless function f must be assumed positive definite, f > 0. Similarly, the other stability criterion, with respect to longitudinal perturbations c 2 l ≥ 0, provides…”
Section: A Embedding In Background Spacetimementioning
confidence: 99%
“…The early stage of the Universe's evolution is thought to have included phase transitions that may have led to the production of cosmic strings, as originally suggested by Tom Kibble [1] (for exhaustive introductions see [2,3]). Scenarios including cosmic strings are ubiquitous in grand unified theories (GUT) [4][5][6] and models of inflation [7][8][9]. A prominent feature of these onedimensional topological defects is their stability, i.e.…”
Section: Introductionmentioning
confidence: 99%
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“…[8] for an update on the cosmic string search in the CMB and the more recent work [9] in which new methods are being developed), they are still expected to be produced in the grand unified theory (GUT) framework (see, e.g., Ref. [10] and references therein), in which case they are very likely to have bosonic condensates [11] or be currentcarrying [12]. The structure of such objects has been studied in detail for many models, from the original Witten [13] fermionic [14,15] or bosonic kind [16][17][18][19], leading to effective equations of state [20,21] potentially useful for large scale network simulations [22,23].…”
Section: Introductionmentioning
confidence: 99%
“…The theory can be embedded in, for example, SO(10) with a Higgs in the 126 [24], where symmetry enforces the fields having the same mass scales and κ = 2λ, and so models the string solution in an attractive class of Grand Unified Theories [25,37,38]. Note that the complex flux we have used to classify the semipoles and strings cannot be defined in every case.…”
mentioning
confidence: 99%