Higgs Portal Dark Matter

Show simple item record

dc.contributor Helsingin yliopisto, Matemaattis-luonnontieteellinen tiedekunta fi
dc.contributor University of Helsinki, Faculty of Science en
dc.contributor Helsingfors universitet, Matematisk-naturvetenskapliga fakulteten sv
dc.contributor.author Berlea, Vlad Dumitru
dc.date.issued 2020
dc.identifier.uri URN:NBN:fi:hulib-202005292529
dc.identifier.uri http://hdl.handle.net/10138/315525
dc.description.abstract The nature of dark matter (DM) is one of the outstanding problems of modern physics. The existence of dark matter implies physics beyond the Standard Model (SM), as the SM doesn’t contain any viable DM candidates. Dark matter manifests itself through various cosmological and astrophysical observations of the rotational speeds of galaxies, structure formation, measurements of the Cosmic Microwave Background (CMB) and gravitational lensing of galaxy clusters. An attractive explanation of the observed dark matter density is provided by the WIMP (Weakly Interacting Massive Particle) paradigm. In the following thesis I explore this idea within the well motivated Higgs portal framework. In particular, I explore three options for dark matter composition: a scalar field and U(1) and SU(2) hidden gauge Fields. I find that the WIMP paradigm is still consistent with the data. Even though it finds itself under pressure from direct detection experiments, it is not yet in crisis. Simple and well motivated WIMP models can fit the observed DM density without violating the collider and direct DM detection constraints. en
dc.language.iso eng
dc.publisher Helsingin yliopisto fi
dc.publisher University of Helsinki en
dc.publisher Helsingfors universitet sv
dc.subject Higgs portal
dc.subject cosmology
dc.subject dark matter
dc.subject WIMP
dc.title Higgs Portal Dark Matter en
dc.type.ontasot pro gradu -tutkielmat fi
dc.type.ontasot master's thesis en
dc.type.ontasot pro gradu-avhandlingar sv
dc.subject.discipline none und
dct.identifier.urn URN:NBN:fi:hulib-202005292529
dc.subject.specialization Alkeishiukkasfysiikka ja kosmologia fi
dc.subject.specialization Particle Physics and Cosmology en
dc.subject.specialization Elementarpartikelfysik och kosmologi sv
dc.subject.degreeprogram Alkeishiukkasfysiikan ja astrofysikaalisten tieteiden maisteriohjelma fi
dc.subject.degreeprogram Master's Programme in Particle physics and Astrophysical Sciences en
dc.subject.degreeprogram Magisterprogrammet i elementarpartikelfysik och astrofysikaliska vetenskaper sv

Files in this item

Files Size Format View
Master's Thesis.pdf 2.757Mb application/pdf View/Open

This item appears in the following Collection(s)

Show simple item record