Title: The warped dark sector

Abstract

Five-dimensional braneworld constructions in anti-de Sitter space naturally lead to dark sector scenarios in which parts of the dark sector vanish at high 4d momentum or temperature. In the language of modified gravity, such feature implies a new mechanism for hiding light scalars, as well as the possibility of UV-completing chameleon-like effective theories. In the language of dark matter phenomenology, the high-energy behaviour of the mediator sector changes dark matter observational complementarity. A multitude of signatures—including exotic ones—are present from laboratory to cosmologic scales, including long-range forces with non-integer behaviour, periodic signals at colliders, “soft bombs” events well-known from conformal theories, as well as a dark phase transition and a typically small amount of dark radiation.

Authors:

Brax, Philippe; Fichet, Sylvain; Tanedo, Philip

Publication Date:

2019-11-01

Research Org.:

Univ. of California, Riverside, CA (United States)

Sponsoring Org.:

USDOE Office of Science (SC)

OSTI Identifier:

1570054

Alternate Identifier(s):

OSTI ID: 1804040

Grant/Contract Number:  

SC0008541

Resource Type:

Published Article

Journal Name:

Physics Letters B

Additional Journal Information:

Journal Name: Physics Letters B Journal Volume: 798 Journal Issue: C; Journal ID: ISSN 0370-2693

Publisher:

Elsevier

Country of Publication:

Netherlands

Language:

English

Subject:

79 ASTRONOMY AND ASTROPHYSICS; Astronomy & Astrophysics; Physics