Results 71 to 80 of about 4,163,262 (181)

The Standard Model of Particle Physics and What Lies Beyond: A View from the Bridge

open access: yesCondensed Matter
The standard models of particle physics and of cosmology have been enormously successful in correlating a large amount of data. However, there are missing pieces and we are still far from what the ultimate model may look like. We give a broad perspective
Pran Nath
doaj   +1 more source

GRBS: Standard Model & Beyond

open access: yes, 2001
There have been great and rapid progresses in the field of $ $-ray bursts since BeppoSAX and other telescopes discovered their afterglows in 1997. In this talk, the main observational facts of $ $-ray bursts and their afterglows, and the standard fireball shock model are reviewed briefly.
openaire   +2 more sources

Unification with vector-like fermions and signals at LHC

open access: yesJournal of High Energy Physics, 2018
We look for minimal extensions of Standard Model with vector like fermions leading to precision unification of gauge couplings. Constraints from proton decay, Higgs stability and perturbativity are considered.
Biplob Bhattacherjee   +3 more
doaj   +1 more source

In search of a UV completion of the standard model — 378,000 models that don’t work

open access: yesJournal of High Energy Physics, 2018
Asymptotically safe extensions of the Standard Model have been searched for by adding vector-like fermions charged under the Standard Model gauge group and having Yukawa-like interactions with new scalar fields.
D. Barducci   +4 more
doaj   +1 more source

Higgs: Standard Model and Beyond

open access: yes, 2002
In this talk, I will discuss possible new physics effects that modify the interaction of Higgs boson(s) with top and bottom quarks, and discuss how to detect such effects in current and future high energy colliders.Comment: LaTeX, 8 pages including 1 ...
Yuan, C. -P.
core   +2 more sources

Search for Physics Beyond the Standard Model

open access: yes, 1993
We survey some recent ideas and progress in looking for particle physics beyond the Standard Model, connected by the theme of Supersymmetry (SUSY). We review the success of SUSY-GUT models, the expected experimental signatures and present limits on SUSY ...
Barger, V., Phillips, R. J. N.
core   +2 more sources

Saxion cosmology for thermalized gravitino dark matter

open access: yesJournal of High Energy Physics, 2017
In all supersymmetric theories, gravitinos, with mass suppressed by the Planck scale, are an obvious candidate for dark matter; but if gravitinos ever reached thermal equilibrium, such dark matter is apparently either too abundant or too hot, and is ...
Raymond T. Co   +3 more
doaj   +1 more source

Beyond the Standard Model in Many Directions

open access: yes, 2004
These four lectures constitute a gentle introduction to what may lie beyond the standard model of quarks and leptons interacting through $SU(3)_c \otimes SU(2)_L \otimes U(1)_Y$ gauge bosons, prepared for an audience of graduate students in experimental ...
Quigg, Chris
core   +3 more sources

Masses Beyond the Standard Model

open access: yes, 1997
If we are to understand the pattern of fermion masses and mixing angles it is necessary to go beyond the Standard Model. One obvious possibility is that there is further structure, Grand Unification, strings etc., at a high scale which determines the Yukawa couplings responsible for the masses.
openaire   +2 more sources

Detecting dark matter with Aharonov-Bohm

open access: yesJournal of High Energy Physics, 2019
While the evidence for dark matter continues to grow, the nature of dark matter remains a mystery. A dark U(1) D gauge theory can have a small kinetic mixing with the visible photon which provides a portal to the dark sector.
John Terning, Christopher B. Verhaaren
doaj   +1 more source

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