Results 21 to 30 of about 176,035,713 (175)

Bubble needs strings

open access: yesJournal of High Energy Physics, 2021
In this paper, we want to emphasize the pivotal role played by strings in the model realizing de Sitter using an expanding bubble, proposed and subsequently developed in [1–3].
Souvik Banerjee   +2 more
doaj   +1 more source

Gapped continuum Kaluza-Klein spectrum

open access: yesJournal of High Energy Physics, 2019
We consider a warped five-dimensional model with an ultraviolet (UV) brane and, on top of the Standard Model isolated modes, continua of KK modes with different mass gaps for all particles: gauge bosons, fermions, graviton, radion and Higgs boson.
Eugenio Megías, Mariano Quirós
doaj   +1 more source

Exact greybody factors for the brane scalar field of five-dimensional rotating black holes

open access: yesJournal of High Energy Physics, 2019
We study scalar perturbations of the five-dimensional rotating black holes and find an exact solution giving exact description of the Hawking radiation.
Young-Hwan Hyun   +2 more
doaj   +1 more source

R D * $$ {R}_{D^{\left(*\right)}} $$ in custodial warped space

open access: yesJournal of High Energy Physics, 2018
Flavor physics experiments allow to probe the accuracy of the Standard Model (SM) description at low energies, and are sensitive to new heavy gauge bosons that couple to quarks and leptons in a relevant way.
Marcela Carena   +3 more
doaj   +1 more source

Dark bubbles: decorating the wall

open access: yesJournal of High Energy Physics, 2020
Motivated by the difficulty of constructing de Sitter vacua in string theory, a new approach was proposed in arXiv:1807.01570 and arXiv:1907.04268 , where four dimensional de Sitter space was realized as the effective cosmology, with matter and radiation,
Souvik Banerjee   +2 more
doaj   +1 more source

Electroweak Kaluza-Klein dark matter

open access: yesJournal of High Energy Physics, 2017
In models with universal extra dimensions (UED), the lightest Kaluza-Klein excitation of neutral electroweak gauge bosons is a stable, weakly interacting massive particle and thus is a candidate for dark matter thanks to Kaluza-Klein parity.
Thomas Flacke   +4 more
doaj   +1 more source

g μ − 2 from Vector-like leptons in warped space

open access: yesJournal of High Energy Physics, 2017
The experimental value of the anomalous magnetic moment of the muon, as well as the LHCb anomalies, point towards new physics coupled non-universally to muons and electrons.
Eugenio Megías   +2 more
doaj   +1 more source

Signatures of microscopic black holes and extra dimensions at future neutrino telescopes

open access: yesJournal of High Energy Physics, 2020
In scenarios with large extra dimensions (LEDs), the fundamental Planck scale can be low enough that collisions between high-energy particles may produce microscopic black holes.
Katherine J. Mack   +2 more
doaj   +1 more source

Kinetic mixing, dark photons and extra dimensions. Part II: fermionic dark matter

open access: yesJournal of High Energy Physics, 2018
Extra dimensions can be very useful tools when constructing new physics models. Previously, we began investigating toy models for the 5-D analog of the kinetic mixing/vector portal scenario where the interactions of bulk dark matter with the brane ...
Thomas G. Rizzo
doaj   +1 more source

Search for signatures of extra dimensions in the diphoton mass spectrum at the Large Hadron Collider [PDF]

open access: yes, 2011
This is the Pre-print version of the Article. The official version can be accessed from the link below - Copyright @ 2012 APSA search for signatures of extra spatial dimensions in the diphoton invariant-mass spectrum has been performed with the CMS ...
Dias FA   +999 more
core   +1 more source

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