Results 21 to 30 of about 3,618,801 (299)

Interpreting the electron EDM constraint

Journal 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, Qianshu Lu, Yuichiro Nakai, Aditya Parikh, Matthew Reece   +4 more
doaj   +1 more source

Constraining the gauge and scalar sectors of the doublet left-right symmetric model

Journal of High Energy Physics, 2020
We consider a left-right symmetric extension of the Standard Model where the spontaneous breakdown of the left-right symmetry is triggered by doublets. The electroweak ρ parameter is protected from large corrections in this Doublet Left-Right Model (DLRM)
Véronique Bernard, Sébastien Descotes-Genon, Luiz Vale Silva   +2 more
doaj   +1 more source

Beyond the Cosmological Standard Model [PDF]

, 2014
After a decade and a half of research motivated by the accelerating universe, theory and experiment have a reached a certain level of maturity. The development of theoretical models beyond \Lambda, or smooth dark energy, often called modified gravity ...
Jain, Bhuvnesh, Joyce, Austin, Khoury, Justin, Trodden, Mark   +3 more
core   +1 more source

Dark matter blind spots at one-loop

Journal 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, Hongkai Liu, Satyanarayan Mukhopadhyay, Xing Wang   +3 more
doaj   +1 more source

The Standard Model and Beyond [PDF]

, 1998
Content 1. Why we do Believe in the Standard Model 2. Why we do not Believe in the Standard Model 2.1Conceptual Problems 2.2Hints from Experiment --2.2.1 Unification of Couplings --2.2.2 Dark Matter --2.2.3 Baryogenesis --2.2.4 Neutrino ...
Albuquerque, Altarelli, Altarelli, Ambrosio, Apollonio, Armbruster, Athanassopoulos, Bahcall, Barbieri, Barbieri, Barbieri, Berezinsky, Birkel, Burdman, Carena, Chamseddine, Chivukula, Cohen, Cremmer, Dimopoulos, Dimopoulos, Ellis, Fargion, Farhi, Fogli, Fukuda, Fukugita, G. Altarelli, Gell-Mann, Georgi, Gildener, Gildener, Giudice, Haber, Hill, Hollik, Ibánez, Karlen, Kolb, Kuzmin, Langacker, Lazarides, Mikheyev, Mohapatra, Nelson, Nilles, Quiros, Ross, Rubakov, Sakharov, Sen, Shaposhnikov, Shaposhnikov, Spiro, Susskind, Treille, Waxman, Weiler, Weinberg, Weinberg, Wolfenstein, Yanagida   +61 more
core   +4 more sources

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

Journal 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, Satoshi Shirai, Michihisa Takeuchi   +2 more
doaj   +1 more source

Lowering the scale of Pati-Salam breaking through seesaw mixing

Journal of High Energy Physics, 2021
We analyse the experimental limits on the breaking scale of Pati-Salam extensions of the Standard Model. These arise from the experimental limits on rare-meson decay processes mediated at tree-level by the vector leptoquark in the model.
Matthew J. Dolan, Tomasz P. Dutka, Raymond R. Volkas   +2 more
doaj   +1 more source

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

Journal 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, Ramona Gröber, Giuliano Panico   +2 more
doaj   +1 more source

Jet substructure from dark sector showers

Journal of High Energy Physics, 2020
We examine the robustness of collider phenomenology predictions for a dark sector scenario with QCD-like properties. Pair production of dark quarks at the LHC can result in a wide variety of signatures, depending on the details of the new physics model ...
Timothy Cohen, Joel Doss, Marat Freytsis
doaj   +1 more source

Beyond the Standard Model

, 2010
Six major frameworks have emerged attempting to describe particle physics beyond the Standard Model. Despite their different theoretical genera, these frameworks have a number of common phenomenological features and problems.
Lykken, Joseph D.
core   +1 more source