Results 11 to 20 of about 394,905 (330)

Serendipity in dark photon searches

Journal of High Energy Physics, 2018
Searches for dark photons provide serendipitous discovery potential for other types of vector particles. We develop a framework for recasting dark photon searches to obtain constraints on more general theories, which includes a data-driven method for ...
Philip Ilten, Yotam Soreq, Mike Williams, Wei Xue   +3 more
doaj   +1 more source

Phenomenological studies in the matrix models [PDF]

, 2014
Matrix models are a promising candidate for a nonperturbative formulation of the superstring theory. It is possible to study how the standard model and other phenomenological models appear from the matrix model, and estimate the probability distribution ...
Aoki, Hajime
core   +1 more source

On the impact of dimension-eight SMEFT operators on Higgs measurements

Journal of High Energy Physics, 2019
Using the production of a Higgs boson in association with a W boson as a test case, we assess the impact of dimension-8 operators within the context of the Standard Model Effective Field Theory.
Chris Hays, Adam Martin, Verónica Sanz, Jack Setford   +3 more
doaj   +1 more source

Hadron collider probes of the quartic couplings of gluons to the photon and Z boson

Journal of High Energy Physics, 2022
We explore the experimental sensitivities of measuring the gg → Zγ process at the LHC to the dimension-8 quartic couplings of gluon pairs to the Z boson and photon, in addition to comparing them with the analogous sensitivities in the gg → γγ process ...
John Ellis, Shao-Feng Ge, Kai Ma
doaj   +1 more source

Hidden monopole dark matter via axion portal and its implications for direct detection searches, beam-dump experiments, and the H0 tension

Journal of High Energy Physics, 2020
Hidden monopole is a plausible dark matter candidate due to its stability, but its direct experimental search is extremely difficult due to feeble interactions with the standard model particles in the minimal form.
Ryuji Daido, Shu-Yu Ho, Fuminobu Takahashi   +2 more
doaj   +1 more source

Constraints on dark matter annihilation from the Event Horizon Telescope observations of M87*

Journal of High Energy Physics, 2022
The fast developments of radio astronomy open a new window to explore the properties of Dark Matter (DM). The recent direct imaging of the supermassive black hole (SMBH) at the center of M87 radio galaxy by the Event Horizon Telescope (EHT) collaboration
Guan-Wen Yuan, Zhan-Fang Chen, Zhao-Qiang Shen, Wen-Qing Guo, Ran Ding, Xiaoyuan Huang, Qiang Yuan   +6 more
doaj   +1 more source

Cornering colored coannihilation

Journal of High Energy Physics, 2018
In thermal dark matter models, allowing the dark matter candidate to coannihilate with another particle can considerably loosen the relic density constraints on the dark matter mass. In particular, introducing a single strongly interacting coannihilation
Sonia El Hedri, Maikel de Vries
doaj   +1 more source

Higgs Quark Flavor Violation: Simplified Models and Status of General Two-Higgs-Doublet Model

Journal of High Energy Physics, 2020
We study quark flavor violating interactions mediated by the Higgs boson h. We consider observables involving a third generation quark, of both the up and the down quark sectors, like h → bs and t → ch.
Juan Herrero-Garcia, Miguel Nebot, Filip Rajec, Martin White, Anthony G. Williams   +4 more
doaj   +1 more source

Stochastic attractors for shell phenomenological models of turbulence [PDF]

, 2009
Recently, it has been proposed that the Navier-Stokes equations and a relevant linear advection model have the same long-time statistical properties, in particular, they have the same scaling exponents of their structure functions.
A. Debussche, A. Debussche, A. Pazy, C. Foias, D. Barbato, D.N. Cheban, E.B. Gledzer, Edriss S. Titi, F. Flandoli, F. Flandoli, F. Flandoli, Franco Flandoli, G. Gallavotti, G. Prato Da, H. Crauel, H. Crauel, H. Crauel, Hakima Bessaih, I. Arad, J. Hale, L. Angheluta, L. Arnold, L. Biferale, L.C. Berselli, M. Yamada, O.A. Ladyzhenskaya, P. Constantin, P. Constantin, P. Constantin, P. Constantin, P. Constantin, R. Benzi, R. Temam, T. Caraballo, U. Frisch, V.S. L’vov, Y. Cohen   +36 more
core   +2 more sources

Constraining A 4 leptonic flavour model parameters at colliders and beyond

Journal of High Energy Physics, 2019
The observed pattern of mixing in the neutrino sector may be explained by the presence of a non-Abelian, discrete flavour symmetry broken into residual subgroups at low energies.
Lukas Heinrich, Holger Schulz, Jessica Turner, Ye-Ling Zhou   +3 more
doaj   +1 more source