Self-interacting dark matter of an SU(2) gauged dark sector

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dc.contributor.author Liu, Ruochuan
dc.date.accessioned 2018-09-04T19:02:09Z
dc.date.available 2018-09-04T19:02:09Z
dc.date.copyright 2018 en_US
dc.date.issued 2018-09-04
dc.identifier.uri http://hdl.handle.net/1828/10026
dc.description.abstract This thesis investigates the possibility that the gauge boson in a certain hypothetical SU(2) gauged sector can constitute all the non-baryonic dark matter. The gauge bosons acquire mass from the Higgs mechanism as in the Standard Model and scatter elastically among themselves non-gravitationally. It is expected that this self interaction of the dark gauge bosons would resolve the various discrepancies between the ΛCDM model and astrophysical observations on small (e.g. galactic or galaxy cluster) scales. Parameter space within the domain of validity of perturbation theory satisfying the constraints of dark matter abundance, the elastic self-scattering momentum transfer cross-section suggested by recent astrophysical observations, and consideration of the Big-Bang nucleosynthesis was found to be non-empty in the “forbidden” regime where the mass of the dark Higgs boson is greater than the mass of the dark gauge boson. en_US
dc.language English eng
dc.language.iso en en_US
dc.rights Available to the World Wide Web en_US
dc.subject Self-interacting dark matter en_US
dc.subject Dark matter en_US
dc.subject Thermal dark matter en_US
dc.subject Non-abelian gauge theory en_US
dc.subject Yang-Mills theory en_US
dc.subject dark Higgs boson en_US
dc.subject Higgs mechanism en_US
dc.subject Higgs portal en_US
dc.subject Dark gauge boson en_US
dc.subject Massive gauge boson en_US
dc.subject Elastically self-interacting dark matter en_US
dc.subject SU(2) en_US
dc.title Self-interacting dark matter of an SU(2) gauged dark sector en_US
dc.type Thesis en_US
dc.contributor.supervisor Pospelov, Maxim
dc.degree.department Department of Physics and Astronomy en_US
dc.degree.level Master of Science M.Sc. en_US
dc.description.scholarlevel Graduate en_US

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