Results 1 to 10 of about 22,237 (331)

Maverick dark matter at colliders [PDF]

Journal of High Energy Physics, 2010
Assuming that dark matter is a weakly interacting massive particle (WIMP) species X produced in the early Universe as a cold thermal relic, we study the collider signal of pp or ppbar -> XXbar + jets and its distinguishability from standard-model ...
A Abulencia, A Abulencia, A Birkedal, D Hooper, Dan Hooper, Edward W. Kolb, EW Kolb, EW Kolb, G Bertone, G Servant, GL Bayatian, GL Kane, H Baer, H Goldberg, H-C Cheng, J Alwall, J Alwall, JL Feng, JM Campbell, JR Ellis, K Agashe, K Agashe, K Agashe, M Beltrán, M Herquet, Maria Beltrán, P Konar, S Catani, T Sjöstrand, Tim M. P. Tait, W Beenakker, W Shepherd, Zosia A. C. Krusberg   +32 more
core   +3 more sources

Distinguishing two dark matter component particles at e + e − colliders

Journal of High Energy Physics, 2022
We investigate ways of identifying two kinds of dark matter (DM) component particles at high-energy colliders. The strategy is to notice and distinguish double-peaks(humps) in the missing energy/transverse energy distribution.
Subhaditya Bhattacharya, Purusottam Ghosh, Jayita Lahiri, Biswarup Mukhopadhyaya   +3 more
doaj   +3 more sources

Constraining Asymmetric Dark Matter using colliders and direct detection [PDF]

Journal of High Energy Physics
We reappraise the viability of asymmetric dark matter (ADM) realized as a Dirac fermion coupling dominantly to the Standard Model fermions. Treating the interactions of such a DM particle with quarks/leptons in an effective-interactions framework, we ...
Arnab Roy, Basudeb Dasgupta, Monoranjan Guchait   +2 more
doaj   +2 more sources

Hunting ewinos and a light scalar of Z 3-NMSSM with a bino-like dark matter in top squark decays at the LHC

Journal of High Energy Physics, 2023
We explore a possible signal of the presence of relatively light electroweakinos (ewinos) and a singlet-like scalar (a S ) of the Z 3-symmetric Next-to-Minimal Supersymmetric Standard Model (Z 3-NMSSM) in the cascade decays of not so heavy top squarks ...
AseshKrishna Datta, Monoranjan Guchait, Arnab Roy, Subhojit Roy   +3 more
doaj   +1 more source

Dark vector mesons at LHC forward detector searches

Journal of High Energy Physics, 2023
Confining gauge dynamics in a dark sector is promising to provide dark matter with a mass in the range of sub-GeV to GeV. Such dark sectors consist of composite particles such as dark baryons and dark mesons, that are neutral under the standard-model ...
Takumi Kuwahara, Shu-Run Yuan
doaj   +1 more source

Searching for inelastic dark matter with future LHC experiments

Journal of High Energy Physics, 2022
We consider a dark sector containing a pair of almost degenerate states coupled to the Standard Model through a dark photon mediator. This set-up constitutes a simple realization of the inelastic dark matter scenario.
Enrico Bertuzzo, Andre Scaffidi, Marco Taoso   +2 more
doaj   +1 more source

Unraveling the Scotogenic model at muon collider

Journal of High Energy Physics, 2022
The Scotogenic model extends the standard model with three singlet fermion N i and one inert doublet scalar η to address the common origin of tiny neutrino mass and dark matter. For fermion dark matter N 1, a hierarchical Yukawa structure ∣ y 1 e ∣ ≪ ∣ y
Jiao Liu, Zhi-Long Han, Yi Jin, Honglei Li   +3 more
doaj   +1 more source

Lighting up the LHC with Dark Matter

Journal of High Energy Physics, 2023
We show that simultaneously explaining dark matter and the observed value of the muon’s magnetic dipole moment may lead to yet unexplored photon signals at the LHC.
Sebastian Baum, Marcela Carena, Tong Ou, Duncan Rocha, Nausheen R. Shah, Carlos E. M. Wagner   +5 more
doaj   +1 more source

Associated production of neutrino and dark fermion at future lepton colliders

Journal of High Energy Physics, 2023
Fermionic dark matter can be pairly produced and hence searched with missing energy at colliders. We extend such probe to the associated production of a neutrino and a dark sector fermion at the future e + e − colliders such as CEPC, FCC-ee, ILC, and ...
Shao-Feng Ge, Kai Ma, Xiao-Dong Ma, Jie Sheng   +3 more
doaj   +1 more source

Multilepton signatures from dark matter at the LHC

Journal of High Energy Physics, 2022
Leptonic signatures of Dark Matter (DM) are one of the cleanest ways to discover such a secluded form of matter at high energy colliders. We explore the full parameter space relevant to multi-lepton (2- and 3-lepton) signatures at the Large Hadron ...
Alexander Belyaev, Ulla Blumenschein, Arran Freegard, Stefano Moretti, Dipan Sengupta   +4 more
doaj   +1 more source