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BEGIN:VEVENT
SUMMARY:Charged dark matter
DTSTART:20211202T143000Z
DTEND:20211202T160000Z
DTSTAMP:20260627T063945Z
UID:90a3a221-0fcb-4e29-a250-f9775aaaedb2
SEQUENCE:2
CREATED:20211129T112042Z
DESCRIPTION:Is it possible to have long range forces competing with gravit
 y at large\, astrophysical and cosmological scales? The unknown nature of 
 the dark sector allows to speculate on this possibility. In this talk I wi
 ll present a model in which a universally charged dark matter component ha
 s this property. This scenario comes equipped with a natural screening mec
 hanism a là K-mouflage thus avoiding traditional constraints on this kind
  of forces. After introducing the model properties\, I will focus on its p
 henomenology. In particular\, I will show how an inhomogeneous cosmologica
 l model is dynamically generated and explore its connection with the Hubbl
 e tension and astrophysical bodies dynamics. Finally\, I will briefly disc
 uss how further constraints on the model can be cast by considering the li
 near response of charged objects under an external static field.
LAST-MODIFIED:20211129T113555Z
LOCATION:Sala de Seminários do DF (2-8.3) 2º Piso
URL:http://df.vps.tecnico.ulisboa.pt/pt/eventos/charged-dark-matter/
X-ALT-DESC;FMTTYPE=text/html:<p data-block-key="twchk">Is it possible to h
 ave long range forces competing with gravity at large\, astrophysical and 
 cosmological scales? The unknown nature of the dark sector allows to specu
 late on this possibility. In this talk I will present a model in which a u
 niversally charged dark matter component has this property. This scenario 
 comes equipped with a natural screening mechanism a là K-mouflage thus av
 oiding traditional constraints on this kind of forces. After introducing t
 he model properties\, I will focus on its phenomenology. In particular\, I
  will show how an inhomogeneous cosmological model is dynamically generate
 d and explore its connection with the Hubble tension and astrophysical bod
 ies dynamics. Finally\, I will briefly discuss how further constraints on 
 the model can be cast by considering the linear response of charged object
 s under an external static field.<br/></p>
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