Zobrazeno 1 - 10
of 868
pro vyhledávání: '"P. Niedermann"'
Autor:
Niedermann, Florian, Sloth, Martin S.
We explore the possibility that exotic forms of dark matter could expose humans on Earth or on prolonged space travel to a significant radiation dose. The radiation exposure from dark matter interacting with nuclei in the human body is generally assu
Externí odkaz:
http://arxiv.org/abs/2411.10521
Cold New Early Dark Energy (Cold NEDE) addresses the Hubble tension through a triggered vacuum phase transition in the dark sector. In this paper, we constrain a phenomenological fluid model using recent cosmic microwave background likelihoods based
Externí odkaz:
http://arxiv.org/abs/2408.14537
We propose a simple model that can alleviate the $H_0$ tension while remaining consistent with big bang nucleosynthesis (BBN). It is based on a dark sector described by a standard Lagrangian featuring a $SU(N)$ gauge symmetry with $N\geq3$ and a mass
Externí odkaz:
http://arxiv.org/abs/2404.07256
Publikováno v:
eXPRESS Polymer Letters, Vol 10, Iss 12, Pp 1016-1025 (2016)
Cyanate ester/epoxy resin (CE/EP) carbon fibre reinforced composites consisting of diglycidyl ether of bisphenol A (DGEBA) and novolac type cyanate ester (CE) were prepared and reactively flame retarded using epoxy functional adduct of DGEBA and 9,10
Externí odkaz:
https://doaj.org/article/81f5d42219644b438d8ded11097479fb
Autor:
Niedermann, Florian, Sloth, Martin S.
New Early Dark Energy introduces a new phase of dark energy that decays in a fast-triggered phase transition around matter-radiation equality. The presence of a trigger mechanism sets it apart from other early dark energy models. Here, we will argue
Externí odkaz:
http://arxiv.org/abs/2307.03481
It has recently been speculated that the NANOGrav observations point towards a first-order phase transition in the dark sector at the GeV scale [1]. Here, we show that such a phase transition might already have been predicted in the Hot New Early Dar
Externí odkaz:
http://arxiv.org/abs/2307.03091
Publikováno v:
eXPRESS Polymer Letters, Vol 9, Iss 2, Pp 85-94 (2015)
Curing and rheological behaviour, glass transition temperature, mechanical and thermal properties of two newly synthesized glucopyranoside- (GPTE) and glucofuranoside- (GFTE) based renewable epoxy resin (EP) components were investigated and compared
Externí odkaz:
https://doaj.org/article/6fcaf456a28e4a70a8dabc41ae9a5d57
Publikováno v:
JCAP11(2023)033
In this work, we show that the Cold New Early Dark Energy (Cold NEDE) model in its original form can solve both the Hubble tension and the $S_8$ tension without adding any new ingredients at the fundamental level. So far, it was assumed that the trig
Externí odkaz:
http://arxiv.org/abs/2305.08895
Autor:
Cruz, Juan S., Hannestad, Steen, Holm, Emil Brinch, Niedermann, Florian, Sloth, Martin S., Tram, Thomas
Recent interest in New Early Dark Energy (NEDE), a cosmological model with a vacuum energy component decaying in a triggered phase transition around recombination, has been sparked by its impact on the Hubble tension. Previous constraints on the mode
Externí odkaz:
http://arxiv.org/abs/2302.07934
Autor:
The FADE Collaboration, Bernardo, Heliudson, Bose, Benjamin, Franzmann, Guilherme, Hagstotz, Steffen, He, Yutong, Litsa, Aliki, Niedermann, Florian
The cosmological constant and its phenomenology remain among the greatest puzzles in theoretical physics. We review how modifications of Einstein's general relativity could alleviate the different problems associated with it that result from the inte
Externí odkaz:
http://arxiv.org/abs/2210.06810