publication . Other literature type . Preprint . Article . 2018

Zero-range effective field theory for resonant wino dark matter. Part III. Annihilation effects

Eric Braaten; Evan Johnson; Hong Zhang;
  • Published: 09 May 2018
  • Publisher: Springer Science and Business Media LLC
Abstract
Near a critical value of the wino mass where there is a zero-energy S-wave resonance at the neutral-wino-pair threshold, low-energy winos can be described by a zero-range effective field theory (ZREFT) in which the winos interact nonperturbatively through a contact interaction and through Coulomb interactions. The effects of wino-pair annihilation into electroweak gauge bosons are taken into account through the analytic continuation of the real parameters for the contact interaction to complex values. The parameters of ZREFT can be determined by matching wino-wino scattering amplitudes calculated by solving the Schr\"odinger equation for winos interacting throug...
Subjects
arXiv: High Energy Physics::Phenomenology
free text keywords: High Energy Physics - Phenomenology, Supersymmetry Phenomenology, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798, Nuclear and High Energy Physics, Photon, Quantum electrodynamics, Annihilation, Physics, Bound state, Electroweak interaction, Scattering amplitude, Particle physics, Gauge boson, Effective field theory, Physics beyond the Standard Model

[1] E.W. Kolb and M.S. Turner, The Early Universe, Front. Phys. 69 (1990) 1 [INSPIRE].

on Searches for Dark Matter Annihilation, Phys. Rev. D 86 (2012) 023506 [19] J.L. Feng, T. Moroi, L. Randall, M. Strassler and S.-f. Su, Discovering supersymmetry at the Tevatron in wino LSP scenarios, Phys. Rev. Lett. 83 (1999) 1731 [hep-ph/9904250] [20] T. Gherghetta, G.F. Giudice and J.D. Wells, Phenomenological consequences of supersymmetry with anomaly induced masses, Nucl. Phys. B 559 (1999) 27 [23] Z. Bern, P. Gondolo and M. Perelstein, Neutralino annihilation into two photons, Phys. Lett.

Powered by OpenAIRE Open Research Graph
Any information missing or wrong?Report an Issue
publication . Other literature type . Preprint . Article . 2018

Zero-range effective field theory for resonant wino dark matter. Part III. Annihilation effects

Eric Braaten; Evan Johnson; Hong Zhang;