Results 141 to 150 of about 9,941 (223)

A less simplified model: 2HDM+pseudoscalar

open access: yes, 2020
This presentation covers the topic of dark matter searches in the context of models with an extended Higgs sector, such as Two-Higgs-Doublet Models (2HDMs).
Bjoerke, Kristian
core  

On the interaction Hamiltonian of symmetric pseudoscalar meson theory

open access: yes, 1959
The equivalence of the pseudoscalar and pseudovector couplings of pseudoscalar pions to nucleons has been investigated here in a straightforward manner without making any use of a canonical transformation as has been done previously (1).
Singh, V.
core   +1 more source

A Loop-philic Pseudoscalar

open access: yes, 2015
We construct a weakly-coupled renormalizable model to explain the $750\mbox{GeV}$ diphoton excess. The $750\mbox{GeV}$ resonance (denoted as $X(750)$) is interpreted as a pseudoscalar coming from a complex singlet. The model also naturally provides a dark matter candidate. One most attractive feature of the model is that decays of $X(750)$ are all loop-
Li, Gang   +5 more
openaire   +2 more sources

Stellar matter with pseudoscalar condensates

open access: yes
In this work we consider how the appearance of gradients of pseudoscalar condensates in dense systems may possibly influence the transport properties of photons in such a medium as well as other thermodynamic characteristics. We adopt the hypothesis that
Kolevatov, S. S.   +3 more
core  

Leptophilic ALPs in laboratory experiments

open access: yesJournal of High Energy Physics
We study the collider phenomenology of leptophilic axion-like particles (ALPs), i.e. pseudoscalar particles that couple only to charged leptons. Loops of charged leptons induce effective interactions of the ALPs with photons, which depend on the momenta ...
Alexander Eberhart   +4 more
doaj   +1 more source

Scalar-Pseudoscalar splitting in hot QCD

open access: yes, 2012
Kovner, Alex. (2012). Scalar-Pseudoscalar splitting in hot QCD.
Kovner, Alex
core  

Pseudoscalar and vector tetraquarks

open access: yes
The pseudoscalar and vector four-quark states $$bb{\overline{c}}{\overline{c}}$$ are studied in the context of the QCD sum rule method. We model $$T_{\text { \ \ PS}} $$ and $$T_{\text {V}}$$ as structures built of diquarks $$ b^{T}C\gamma _{5}b ...
H. Sundu, S. S. Agaev, K. Azizi
core   +1 more source

Probing leptophobic dark sector with a pseudoscalar portal in the NA64 experiment at CERN

open access: yesJournal of High Energy Physics
We propose the possibility of discovering a light pseudoscalar particle a, axion-like particle (ALP), interacting mainly with quarks using the electron and photon scattering reaction chain e + Z → e + γ + Z; γ + Z → a + Z on nuclei in the NA64 experiment
Sergei N. Gninenko   +5 more
doaj   +1 more source

Nonlinear Pseudoscalar Meson Theory [PDF]

open access: yesProgress of Theoretical Physics, 1953
openaire   +1 more source

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