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Collisions of Cosmic F- and D-strings

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arxiv hep-th/0405229 v2 pith:6YX5IF6P submitted 2004-05-25 hep-th

Mark G. Jackson , Nicholas T. Jones , Joseph Polchinski This is my paper · ORCID
classification hep-th
keywords stringscosmiccasescollisionsdependsstringtheoryamplitudes
verification ladder T0 review T1 audit T2 compute T3 formal

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Recent work suggests that fundamental and Dirichlet strings, and their (p,q) bound states, may be observed as cosmic strings. The evolution of cosmic string networks, and therefore their observational signals, depends on what happens when two strings collide. We study this in string perturbation theory for collisions between all possible pairs of strings; different cases involve sphere, disk, and annulus amplitudes. The result also depends on the details of compactification; the dependence on ratios of scales is only logarithmic, but this is still numerically important. We study a range of models and parameters, and find that in most cases these strings can be distinguished from cosmic strings that arise as gauge theory solitons.

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Cited by 6 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Cosmic superstrings in large volume compactifications: PTAs, LISA and time-varying tension

    astro-ph.CO 2025-04 conditional novelty 7.0 of 10

    Cosmic superstrings with a time-varying tension in large-volume string compactifications generically predict a LISA-band spectral drop and a high-frequency f^4 boost, encoding the mass and decay of the volume modulus.

  2. Formation and scaling of $\mathbb{Z}_N$ strings for global $\mathrm{SU}(N)/\mathbb{Z}_N$ symmetry

    hep-ph 2026-07 conditional novelty 6.0 of 10

    In a global SU(N)/Z_N scalar model, Z_N-string networks with baryon-vertex-like junctions reach a scaling regime for N=2,3,4,5,8, with string density proportional to N^2-1.

  3. Probing the gravitational wave background from cosmic strings with LISA

    astro-ph.CO 2019-09 conditional novelty 6.0 of 10

    LISA is projected to probe cosmic string tensions G mu down to about 1e-17 and to measure spectral features from early-universe physics.

  4. Cosmic string gravitational wave backgrounds at LISA: I. Signal survey, template reconstruction, and model comparison

    astro-ph.CO 2025-08 unverdicted novelty 5.0 of 10

    As provided, the manuscript body (random lasing) does not correspond to the abstract (cosmic string gravitational wave backgrounds at LISA), leaving the abstract's quantitative claims unsupported by any accessible text.

  5. Constraints on Cosmic Strings from the Curl-Mode CMB Lensing Power Spectrum measured by ACT DR6

    astro-ph.CO 2026-06 unverdicted novelty 4.0 of 10

    ACT DR6 curl lensing yields 2σ bounds Gμ P^{-1} ≤ 3.5×10^{-5} (small-P) and Gμ ≤ 5.0×10^{-5} (P=1), tightened further with Planck 2013 data.

  6. Waveform Modelling for the Laser Interferometer Space Antenna

    gr-qc 2023-11 unverdicted novelty 2.0 of 10

    A review of existing waveform models for LISA sources and the challenges that must still be overcome.

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