Results 11 to 20 of about 84,873 (223)

Keeping it simple: simplified frameworks for long-lived particles at neutrino facilities

open access: yesJournal of High Energy Physics, 2023
Modern-day accelerator neutrino facilities are excellent venues for searches for new-physics particles. Many distinct new-physics models predict overlapping signatures and phenomenology in these experiments.
Brian Batell   +2 more
doaj   +1 more source

100 Years of Astronomy, Astrophysics and Cosmology [PDF]

open access: yesProceedings of the International Astronomical Union, 2018
AbstractAstronomy, astrophysics and cosmology have changed out of all recognition over the last 100 years. The IAU has provided an essential means of fostering international collaboration in these disciplines including times of international tension. Developments will be highlighted which have profoundly changed our understanding and insight into the ...
openaire   +1 more source

Big Universe, Big Data: Machine Learning and Image Analysis for Astronomy [PDF]

open access: yes, 2017
Astrophysics and cosmology are rich with data. The advent of wide-area digital cameras on large aperture telescopes has led to ever more ambitious surveys of the sky.
Gieseke, Fabian   +4 more
core   +2 more sources

Electroweak splitting functions and high energy showering

open access: yesJournal of High Energy Physics, 2017
We derive the electroweak (EW) collinear splitting functions for the Standard Model, including the massive fermions, gauge bosons and the Higgs boson. We first present the splitting functions in the limit of unbroken SU(2) L × U(1) Y and discuss their ...
Junmou Chen, Tao Han, Brock Tweedie
doaj   +1 more source

Structure of Chern-Simons scattering amplitudes from topological equivalence theorem and double-copy

open access: yesJournal of High Energy Physics, 2022
We study the mechanism of topological mass-generation for 3d Chern-Simons (CS) gauge theories, where the CS term can retain the gauge symmetry and make gauge boson topologically massive.
Yan-Feng Hang, Hong-Jian He, Cong Shen
doaj   +1 more source

Breaking mirror twin color

open access: yesJournal of High Energy Physics, 2020
We investigate simple extensions of the Mirror Twin Higgs model in which the twin color gauge symmetry and the discrete ℤ2 mirror symmetry are spontaneously broken. This is accomplished in a minimal way by introducing a single new colored triplet, sextet,
Brian Batell   +2 more
doaj   +1 more source

Massive color-kinematics duality and double-copy for Kaluza-Klein scattering amplitudes

open access: yesJournal of High Energy Physics, 2023
We study the structure of scattering amplitudes of massive Kaluza-Klein (KK) states under toroidal compactification. We present a shifting method to quantitatively derive the scattering amplitudes of massive KK gauge bosons and KK gravitons from the ...
Yao Li, Yan-Feng Hang, Hong-Jian He
doaj   +1 more source

Reionization and Cosmology with 21 cm Fluctuations [PDF]

open access: yes, 2009
Measurement of the spatial distribution of neutral hydrogen via the redshifted 21 cm line promises to revolutionize our knowledge of the epoch of reionization and the first galaxies, and may provide a powerful new tool for observational cosmology from ...
J. Stuart B. Wyithe   +4 more
core   +1 more source

Hybrid renormalization for quasi distribution amplitudes of a light baryon

open access: yesJournal of High Energy Physics, 2023
We develop a hybrid scheme to renormalize quasi distribution amplitudes of a light baryon on the lattice, which combines the self-renormalization and ratio scheme.
Chao Han   +3 more
doaj   +1 more source

Heavy quark jet fragmentation

open access: yesJournal of High Energy Physics, 2018
In this paper we study the fragmentation of a parton into a jet containing a heavy quark. When heavy quarks are involved in a jet, the quark mass can lead to a numerically significant correction to the jet cross section and its substructure.
Lin Dai, Chul Kim, Adam K. Leibovich
doaj   +1 more source

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