Results 71 to 80 of about 2,018,508 (172)
Aspects of non-local QED and the weak gravity conjecture
European Physical Journal C: Particles and FieldsWe use the weak gravity conjecture (WGC) to investigate the impact of charge dequantization arising from non-local QED on the scale of non-locality of neutrinos. We find this scale to be $$\lesssim 49$$ ≲ 49 TeV as implied by direct bounds and $$\lesssim
Fayez Abu-Ajamieh +2 more
doaj +1 more source
A high energy astronomy overview [PDF]
A technology assessment of extrasolar X-ray astronomy is presented.
Giacconi, R.
core +1 more source
What do we know about cosmography
European Physical Journal C: Particles and Fields, 2017 In the present paper, we investigate the cosmographic problem using the bias–variance trade-off. We find that both the z-redshift and the $$y=z/(1+z)$$ y = z / ( 1 + z ) -redshift can present a small bias estimation.
Ming-Jian Zhang, Hong Li, Jun-Qing Xia
doaj +1 more source
Tests of CPT invariance in gravitational waves with LIGO-Virgo catalog GWTC-1
European Physical Journal C: Particles and Fields, 2020 A discovery of gravitational waves from binary black holes raises a possibility that measurements of them can provide strict tests of CPT invariance in gravitational waves.
Sai Wang, Zhi-Chao Zhao
doaj +1 more source
All-flavour high-energy neutrino astronomy with KM3NeT/ARCA
, 2016 The recent discovery by the IceCube collaboration of a high-energy neutrino flux of extraterrestrial origin has opened a new observational window on the Universe.
P. Piattelli
semanticscholar +1 more source
High Energy Astronomy Observatory [PDF]
An overview of the High Energy Astronomy Observatory 2 contributions to X-ray astronomy is presented along with a brief description of the satellite and onboard telescope.
core +1 more source
Thin-wall vacuum decay in the presence of a compact dimension meets the H 0 and S 8 tensions
Journal of High Energy PhysicsThe proposal of a rapid sign-switching cosmological constant in the late universe, mirroring a transition from anti-de Sitter (AdS) to de Sitter (dS) space, has significantly improved the fit to observational data and provides a compelling framework for ...
Luis A. Anchordoqui +4 more
doaj +1 more source
Multimessenger astronomy driven by high-energy neutrinos [PDF]
, 2023 S. Yoshida
openalex +1 more source
European Physical Journal C: Particles and FieldsWe continue the study of dipole cosmology framework put forward in Krishnan et al. (JCAP 07:020, 2023), a beyond FLRW setting that has a preferred direction in the metric which may be associated with a cosmological tilt, a cosmic dipole.
A. Allahyari +3 more
doaj +1 more source
Nucleosynthesis constraints on the faint vector portal
EPJ Web of Conferences, 2015 New Abelian U(1)′ gauge bosons Vμ can couple to the Standard Model through mixing of the associated field strength tensor Vμν with the one from hypercharge, FμνY.
Fradette Anthony +3 more
doaj +1 more source