Results 51 to 60 of about 2,716,965 (190)

Spillway preheating

Journal of High Energy Physics, 2021
In traditional models only an order one fraction of energy is transferred from the inflaton to radiation through nonperturbative resonance production in preheating immediately after inflation, due to backreaction effects. We propose a particle production
JiJi Fan, Kaloian D. Lozanov, Qianshu Lu
doaj   +1 more source

CP-violation in the dark sector [PDF]

arXiv, 2021
Extended scalar sectors are a common feature of almost all beyond Standard Model (SM) scenarios which, in fact, can address many of the SM shortcomings solely on their own. While many beyond SM scenarios have lost their appeal due to the non-observation of their predicted particles or are experimentally inaccessible, scalar extensions are well within ...
arxiv  

Holography and Brane-bulk Energy Exchange

, 2005
The five-dimensional description of generalized Randall-Sundrum cosmology is mapped via holography to a generalization of the Starobinsky model. This provides a holographic dual description of the cosmological brane-bulk energy exchange processes studied
Alexander S H S, Apostolopoulos P S, Apostolopoulos P S Brouzakis N Saridakis E N Tetradis N, Arkani-Hamed N, Banks T Douglas M R Horowitz G T Martinec E J, Bianchi M, Bianchi M, Birrell N D, Brandhuber A, Brax P, Brax P van de Bruck C Davis A C, Burgess C P, Charmousis C, Csaki C, Danielsson U H, Das S R, de Haro S, Duff M J, Dvali G R Shafi Q Solganik S, Elias Kiritsis, Fefferman C, Freedman D Z, Gabadadze G, Gregory J P, Henningson M, Kehagias A, Kiritsis E, Kiritsis E, Kiritsis E, Kiritsis E, Kiritsis E, Klebanov I R, Kraus P, Leeper E, Maartens R, Maldacena J, Maldacena J M, Nojiri S, Papadimitriou I, Papadimitriou I Skenderis K, Quevedo F, Silverstein E, Sundrum R, Tetradis N, Tomaras T N, Trodden M Carroll S M, Verlinde H, Witten E, Witten E, Zee A, ’t Hooft G   +50 more
core   +2 more sources

Dark Matter: A Primer [PDF]

, 2011
Dark matter is one of the greatest unsolved mysteries in cosmology at the present time. About 80% of the universe's gravitating matter is non-luminous, and its nature and distribution are for the most part unknown.
Duda, Gintaras, Garrett, Katherine
core   +3 more sources

Thinking with Amazonian Indigenous Peoples to expand ideas on domestication

People and Nature, Volume 7, Issue 3, Page 560-574, March 2025.
Abstract Indigenous knowledges are being increasingly recognized as fundamental for environmental governance, ecosystem management and biodiversity conservation. However, they tend to be recognized by Western science only when they converge with Western scientific knowledge, while ontological differences are generally treated as irrelevant or ...
Mariana Franco Cassino, Guilherme Henriques Soares, Gilton Mendes dos Santos, Jonilda Hauwer Gouveia, João Paulo Lima Barreto, Dagoberto Lima Azevedo, Gabriel Sodré Maia, Juliana Lins, Clarinda Maria Ramos, Myrtle Pearl Shock, Marco Madella, Charles Roland Clement   +11 more
wiley   +1 more source

Monochromatic Gamma Rays from Dark Matter Annihilation to Leptons [PDF]

, 2015
We investigate the relation between the annihilation of dark matter (DM) particles into lepton pairs and into 2-body final states including one or two photons.
Coogan, Adam, Profumo, Stefano, Shepherd, William   +2 more
core   +2 more sources

Visible GeV ALP from TeV Vector‐Like Leptons

Fortschritte der Physik, Volume 73, Issue 3, March 2025.
Abstract A model is presented where a GeV axion‐like‐particle (ALP) is predicted in a large portion of the parameter space due to the presence of explicit Peccei–Quinn (PQ) symmetry‐breaking terms in an exotic leptonic sector. The latter provides a solution to the muon g−2$g-2$ anomaly, within the framework of the Linear Seesaw neutrino mechanism.
Arturo de Giorgi, Marta Fuentes Zamoro, Luca Merlo   +2 more
wiley   +1 more source

Electroweak symmetric dark matter balls

Journal of High Energy Physics, 2019
In the simple Higgs-portal dark matter model with a conserved dark matter number, we show that there exists a non-topological soliton state of dark matter.
Eduardo Pontón, Yang Bai, Bithika Jain
doaj   +1 more source

Polynomial $f(R)$ Palatini cosmology -- dynamical system approach

, 2017
We investigate cosmological dynamics based on $f(R)$ gravity in the Palatini formulation. In this study we use the dynamical system methods. We show that the evolution of the Friedmann equation reduces to the form of the piece-wise smooth dynamical ...
Stachowski, Aleksander, Szydlowski, Marek   +1 more
core   +1 more source

Decolonizing English in Higher Education: Global Englishes and TESOL as Opportunities or Barriers

TESOL Quarterly, Volume 59, Issue 1, Page 281-309, March 2025.
Abstract English is core to HE (higher education) globally, with both HE and English seen as pathways to success for students. Yet, access to English is unequal and colonial ideologies associate English with Anglophone settings. Much of the research on English in HE has focused on elite institutions and students, while the majority of the world's HE ...
Will Baker, Sonia Morán Panero, José Aldemar Álvarez Valencia, Sami Alhasnawi, Yusop Boonsuk, Phuong Le Hoang Ngo, Maritza M. Martínez‐Sánchez, Norbella Miranda, Gloria J. Ronzón‐Montiel   +8 more
wiley   +1 more source