Dark matter via kinetic mixing in dark stars and earth-based detectors

Βασιλάκη, Χριστιάνα; Vasilaki, Christiana

dc.contributor.author	Βασιλάκη, Χριστιάνα	el
dc.contributor.author	Vasilaki, Christiana	en
dc.date.accessioned	2021-07-27T09:04:46Z
dc.date.available	2021-07-27T09:04:46Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/53697
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.21395
dc.rights	Default License
dc.subject	Dark matter	en
dc.subject	Dark photon	en
dc.subject	Direct detection	en
dc.subject	Dark stars	en
dc.subject	Kinetic mixing	en
dc.subject	Σκοτεινή ύλη	el
dc.subject	Σκοτεινό φωτόνιο	el
dc.subject	Άμεση ανίχνευση	el
dc.subject	Σκοτεινοί αστέρες	el
dc.title	Dark matter via kinetic mixing in dark stars and earth-based detectors	en
dc.title	Ίχνη σκοτεινής ύλης μέσω κινητικής ανάμειξης σε σκοτεινούς αστέρες και επίγειους ανιχνευτές	el
heal.type	bachelorThesis
heal.classification	Physics	en
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2021-07-06
heal.abstract	In the search for particle dark matter, a subject of considerable interest in the past decades has been the extension of the Standard Model with an extra U(1)$_D$ symmetry, whose force carrier a massive dark photon. This introduces a new kinetic mixing term into the Lagrangian and provides communication channel between the visible and dark sector. The kinetic mixing term induces a coupling between the dark photon and Standard Model particles, which could potentially lead to direct or indirect detection in an experiment. Ιn this thesis, the interactions considered were the elastic scattering of a dark matter particle with a proton mediated by a massive dark photon and the Compton-like absorption of a dark photon by an electron followed by the emission of an ordinary photon. Additionally, the dark photon model was examined in the context of dark stars, which are compact objects comprised of asymmetric self-interacting dark matter. In this case, the ordinary photon can acquire a medium-induced mass inside the dark star through a Higgs-like mechanism, which results in a coupling between the photon and dark sector particles. Lastly, the elastic scattering cross-section for dark matter-proton interaction and the corresponding differential rate of events for a direct detection experiment were calculated.	en
heal.advisorName	Κούβαρης, Χριστόφορος	el
heal.advisorName	Kouvaris, Christoforos	en
heal.committeeMemberName	Κούβαρης, Χριστόφορος	el
heal.committeeMemberName	Αναγνωστόπουλος, Κωσταντίνος	el
heal.committeeMemberName	Ήργες, Νίκος	el
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Εφαρμοσμένων Μαθηματικών και Φυσικών Επιστημών	el
heal.academicPublisherID	ntua
heal.numberOfPages	92 σ.	el
heal.fullTextAvailability	false