Results 31 to 40 of about 1,247 (180)

Closing the window for compressed dark sectors with disappearing charged tracks

open access: yesJournal of High Energy Physics, 2017
We investigate the sensitivity at current and future hadron colliders to a heavy electrically-charged particle with a proper decay length below a centimetre, whose decay products are invisible due to below-threshold energies and/or small couplings to the
Rakhi Mahbubani   +2 more
doaj   +1 more source

Comparatively light extra Higgs states as signature of SUSY SO(10) GUTs with 3rd family Yukawa unification

open access: yesJournal of High Energy Physics, 2020
We study 3rd family Yukawa unification in the context of supersymmetric (SUSY) SO (10) GUTs and SO(10)-motivated boundary conditions for the SUSY-breaking soft terms.
Stefan Antusch   +2 more
doaj   +1 more source

Interpreting the electron EDM constraint

open access: yesJournal of High Energy Physics, 2019
The ACME collaboration has recently announced a new constraint on the electron EDM, |d e | < 1.1 × 10−29 e cm, from measurements of the ThO molecule. This is a powerful constraint on CP-violating new physics: even new physics generating the EDM at two ...
Cari Cesarotti   +4 more
doaj   +1 more source

Triplet extended supersymmetric standard model [PDF]

open access: yesPhysical Review D, 2008
26 pages, 19 figures. Errors on the RGEs corrected and consequential changes applied. Plots updated and discussion broadened.
Di Chiara, Stefano, Hsieh, Ken
openaire   +2 more sources

Charged fermions below 100 GeV

open access: yesJournal of High Energy Physics, 2018
How light can a fermion be if it has unit electric charge? We revisit the lore that LEP robustly excludes charged fermions lighter than about 100 GeV.
Daniel Egana-Ugrinovic   +2 more
doaj   +1 more source

Supersymmetric standard models on D-branes [PDF]

open access: yesPhysics Letters B, 2001
Type IIB superstring models with the standard model gauge group on D3-branes and with massless matter associated with open strings joining D3-branes to D3-branes or D3-branes to ${\rm D}7_3$-branes are studied. Models with gauge coupling constant unification at an intermediate scale between about $10^{10}$ and $10^{12}$GeV and consistency with the ...
Bailin, D., Kraniotis, G. V., Love, A.
openaire   +2 more sources

Probing new electroweak states via precision measurements at the LHC and future colliders

open access: yesJournal of High Energy Physics, 2019
Several new physics scenarios, motivated e.g. by dark matter, feature new electroweakly charged states where the lightest particle in the multiplet is stable and neutral.
Luca Di Luzio   +2 more
doaj   +1 more source

Dark matter blind spots at one-loop

open access: yesJournal of High Energy Physics, 2019
We evaluate the impact of one-loop electroweak corrections to the spin-independent dark matter (DM) scattering cross-section with nucleons (σ SI), in models with a so-called blind spot for direct detection, where the leading-order prediction for the ...
Tao Han   +3 more
doaj   +1 more source

Time-delayed electrons from neutral currents at the LHC

open access: yesJournal of High Energy Physics, 2021
We investigate long-lived particles (LLPs) produced in pair from neutral currents and decaying into a displaced electron plus two jets at the LHC, utilizing the proposed minimum ionizing particle timing detector at CMS. We study two benchmark models: the
Kingman Cheung   +2 more
doaj   +1 more source

Indirect probe of electroweak-interacting particles with mono-lepton signatures at hadron colliders

open access: yesJournal of High Energy Physics, 2019
Electroweak-interacting massive particles (EWIMPs) exist in a broad class of new physics models beyond the Standard Model. Searching for such particles is one of most primary goal at the LHC and future colliders.
Shigeki Matsumoto   +2 more
doaj   +1 more source

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