Results 51 to 60 of about 68,432 (208)

BEYOND THE STANDARD MODEL WITH B AND K PHYSICS [PDF]

open access: yesInternational Journal of Modern Physics A, 2004
In the first part of the talk the flavor physics input to models beyond the Standard Model is described. One specific example of such a new physics model is given: a model with bulk fermions in one non-factorizable extra dimension. In the second part of the talk we discuss several observables that are sensitive to new physics.
Yuval Grossman   +2 more
openaire   +4 more sources

Scope of self-interacting thermal WIMPs in a minimal U(1) D extension and its future prospects

open access: yesJournal of High Energy Physics, 2019
In this work we have considered a minimal extension of Standard Model by a local U(1) gauge group in order to accommodate a stable (fermionic) Dark Matter (DM) candidate. We have focussed on parameter regions where DM possesses adequate self-interaction,
Rahool Kumar Barman   +4 more
doaj   +1 more source

Physics Beyond the Standard Model at HERA

open access: yes, 1997
This talk is divided in two parts. In the first one we discuss the signals of the Minimal Supersymmetric Standard Model through the production of \tilde{e} \tilde{q}. The second part is devoted to contact terms. The bounds on the mass scale Lambda obtained from atomic parity violation experiments and from LEP are reviewed.
Cornet Sánchez del Águila, Fernando   +1 more
openaire   +3 more sources

Unstable cosmic neutrino capture

open access: yesJournal of High Energy Physics, 2022
Future direct observations of the Cosmic Neutrino Background (CνB) have the potential to explore a neutrino lifetime, especially in the region of the age of the universe, t 0 = 4.35 × 1017 s.
Kensuke Akita   +2 more
doaj   +1 more source

Beyond the standard model of particle physics [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2016
The Large Hadron Collider (LHC) at CERN and its experiments were conceived to tackle open questions in particle physics. The mechanism of the generation of mass of fundamental particles has been elucidated with the discovery of the Higgs boson. It is clear that the standard model is not the final theory.
openaire   +3 more sources

Simulation of beyond standard model physics in Herwig++ [PDF]

open access: yesThe European Physical Journal C, 2007
34 pages, 22 figures. Version accepted for publication in EPJC.
M. Gigg, Peter J. Richardson
openaire   +3 more sources

A portalino to the dark sector

open access: yesJournal of High Energy Physics, 2019
“Portal” models that connect the Standard Model to a Dark Sector allow for a wide variety of scenarios beyond the simplest WIMP models. Kinetic mixing of gauge fields in particular has allowed a broad range of new ideas.
Martin Schmaltz, Neal Weiner
doaj   +1 more source

A tale of two portals: testing light, hidden new physics at future e + e − colliders

open access: yesJournal of High Energy Physics, 2017
We investigate the prospects for producing new, light, hidden states at a future e + e − collider in a Higgsed dark U(1) D model, which we call the Double Dark Portal model. The simultaneous presence of both vector and scalar portal couplings immediately
Jia Liu, Xiao-Ping Wang, Felix Yu
doaj   +1 more source

The Higgs vacuum uplifted: revisiting the electroweak phase transition with a second Higgs doublet

open access: yesJournal of High Energy Physics, 2017
The existence of a second Higgs doublet in Nature could lead to a cosmological first order electroweak phase transition and explain the origin of the matter-antimatter asymmetry in the Universe.
G. C. Dorsch   +3 more
doaj   +1 more source

An allowed window for heavy neutral leptons below the kaon mass

open access: yesJournal of High Energy Physics, 2021
The extension of the Standard Model with two gauge-singlet Majorana fermions can simultaneously explain two beyond-the-Standard-model phenomena: neutrino masses and oscillations, as well as the origin of the matter-antimatter asymmetry in the Universe ...
Kyrylo Bondarenko   +6 more
doaj   +1 more source

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