Results 71 to 80 of about 21,703 (185)

New channel to search for dark matter at Belle II

Journal of High Energy Physics
We propose a new “disappearing positron track” channel at Belle II to search for dark matter, in which a positron that is produced at the primary interaction vertex scatters with the electromagnetic calorimeter to produce dark matter particles.
Jinhan Liang, Zuowei Liu, Lan Yang
doaj   +1 more source

Updated Post-WMAP Benchmarks for Supersymmetry

, 2003
We update a previously-proposed set of supersymmetric benchmark scenarios, taking into account the precise constraints on the cold dark matter density obtained by combining WMAP and other cosmological data, as well as the LEP and b -> s gamma constraints.
148, 22, 25, A. De Roeck, Allanach, Baer, Baer, Belanger, Carena, Collaboration], Collaboration], Drees, Drees, Ellis, Ellis, Ellis, Ellis, F. Gianotti, Feng, Heinemeyer, Hinchliffe, J. Ellis, K. A. Olive, Kane, L. Pape, Lahanas, M. Battaglia, Maiani, Pierce, See   +29 more
core   +1 more source

Top-philic Vector-Like Portal to Scalar Dark Matter

, 2018
We investigate the phenomenology of scalar singlet dark matter candidates that couple dominantly to the Standard Model via a Yukawa interaction with the top quark and a colored vector-like fermion.
Colucci, Stefano, Fuks, Benjamin, Giacchino, Federica, Honorez, Laura Lopez, Tytgat, Michel H. G., Vandecasteele, Jérôme   +5 more
core   +2 more sources

Production of dark photons through higher electromagnetic moments at LDMX: simulations and model discrimination

Journal of High Energy Physics
We extend the projected sensitivity of LDMX for sub-GeV dark matter (DM) to the case of dark photons produced through higher order electromagnetic moments. These moments arise from loop diagrams involving portal matter fields, along with the gauge fields
Riccardo Catena, Taylor R. Gray, Thomas Jerkvall   +2 more
doaj   +1 more source

Distinguishing Dynamical Dark Matter at the LHC

, 2012
Dynamical dark matter (DDM) is a new framework for dark-matter physics in which the dark sector comprises an ensemble of individual component fields which collectively conspire to act in ways that transcend those normally associated with dark matter ...
Dienes, Keith R., Su, Shufang, Thomas, Brooks   +2 more
core   +2 more sources

Probing left-handed heavy neutral leptons in the Vector Scotogenic Model

Journal of High Energy Physics
In this work, we consider an extension to the Standard Model composed by a Massive Vector Doublet under SU(2) L and a Left-handed Heavy Neutral Lepton.
C. Paulo Areyuna, Jilberto Zamora-Saa, Alfonso R. Zerwekh   +2 more
doaj   +1 more source

Production of light dark particles from nonlinear Compton scattering between intense laser and muon or proton beam

Journal of High Energy Physics
The laser of an intense electromagnetic field promotes the studies of strong-field particle physics in high-intensity frontier. Particle accelerator facilities in the world produce high-quality muon and proton beams.
Tong Li, Kai Ma, Man Yuan
doaj   +1 more source

Probing exotic long-lived particles from the prompt side using the CONTUR method

Journal of High Energy Physics
A method to derive constraints on new physics models featuring exotic long-lived particles using detector-corrected measurements of prompt states is presented.
L. Corpe, A. Goudelis, S. Jeannot, S. Jeon   +3 more
doaj   +1 more source

Portal Matter and Dark Sector Phenomenology at Colliders

, 2022
If dark matter (DM) interacts with the Standard Model (SM) via the kinetic mixing (KM) portal, it necessitates the existence of massive, likely $\gsim 1$ TeV, enabler portal matter (PM) particles that carry both dark and SM quantum numbers which will appear in vacuum polarization-like loop graphs.
openaire   +2 more sources

Laser induced Compton scattering to dark matter in effective field theory

Journal of High Energy Physics
The detection of light dark matter (DM) is a longstanding challenge in terrestrial experiments. High-intensity facilities with intense electromagnetic field may provide a plausible strategy to study strong-field particle physics and search for light DM ...
Kai Ma, Tong Li
doaj   +1 more source