Results 31 to 40 of about 494 (159)

Flavor and collider signatures of asymmetric dark matter [PDF]

Physical Review D, 2014
We consider flavor constraints on, and collider signatures of, Asymmetric Dark Matter (ADM) via higher dimension operators. In the supersymmetric models we consider, R-parity violating (RPV) operators carrying B-L interact with n dark matter (DM) particles X through an interaction of the form W = X^n O_{B-L}, where O_{B-L} = q l d^c, u^c d^c d^c, l l e^
Kim, Ian-Woo, Zurek, Kathryn M.
openaire   +3 more sources

Precise estimate of charged Higgsino/Wino decay rate

Journal of High Energy Physics
Higgsinos and Winos in the supersymmetric Standard Model are prime candidates for dark matter due to their weakly interacting nature. The mass differences between their charged components (charginos) and neutral components (neutralinos) become degenerate
Masahiro Ibe, Yuhei Nakayama, Satoshi Shirai   +2 more
doaj   +1 more source

Collider Interplay for Supersymmetry, Higgs and Dark Matter [PDF]

The European Physical Journal C, 2015
47 pages, 26 ...
Buchmueller, O, Citron, M, Ellis, J, Guha, S, Marrouche, J, Olive, KA, De Vries, K, Zheng, J   +7 more
openaire   +5 more sources

Optimizing pixel tracklet searches for shorter lifetimes

Journal of High Energy Physics, 2023
Pixel tracklets, disappearing tracks reconstructed with only pixel hits, have proven to be a promising technique in LHC analyses to search for dark matter candidates at the LHC that belong to a nearly-degenerate electroweak multiplet.
Matthew Gignac, Can Kilic, Rakhi Mahbubani, Taewook Youn   +3 more
doaj   +1 more source

Vector portals at future lepton colliders

Journal of High Energy Physics
We assess the sensitivity of future lepton colliders to weakly coupled vector dark portals (aka “Z ′ bosons”) with masses ranging from tens of GeV to a few TeV. Our analysis focuses on dark photons and L μ – L τ gauge bosons. We consider both visible and
Sagar Airen, Edward Broadberry, Gustavo Marques-Tavares, Lorenzo Ricci   +3 more
doaj   +1 more source

Dark matter at colliders: A model-independent approach [PDF]

Physical Review D, 2004
Assuming that cosmological dark matter consists of weakly interacting massive particles, we use the recent precise measurement of cosmological parameters to predict the guaranteed rates of production of such particles in association with photons at electron-positron colliders.
Birkedal, Andreas, Matchev, Konstantin, Perelstein, Maxim   +2 more
openaire   +2 more sources

Dark matter in multi-singlet extensions of the Standard Model

Journal of High Energy Physics
We study the simplest extensions of the Standard Model (SM) that provide Dark Matter (DM) candidates, built with the addition of real singlets and new Z 2 $$ {\mathcal{Z}}_2 $$ symmetries.
Maria Gonçalves, Margarete Mühlleitner, Rui Santos, Tomás Trindade   +3 more
doaj   +1 more source

Dark matter searches at the large hadron collider [PDF]

AIP Conference Proceedings, 2016
Dark Matter is a hypothetical particle proposed to explain the missing matter expected from the cosmological observation. The motivation of Dark Matter is overwhelming however as it is mainly deduced from its gravitational interaction, for it does little to pinpoint what Dark Matter really is. In WIMPs Miracle, weakly interactive massive particle being
Hoh, Siew Yan, Komaragiri, Jyothsna, Abdullah, Wan Ahmad Tajuddin Bin Wan   +2 more
openaire   +2 more sources

WIMP dark matter at the International Linear Collider [PDF]

Physical Review D, 2020
30 pages, 21 ...
Moritz Habermehl, Mikael Berggren, Jenny List   +2 more
openaire   +3 more sources

Singlet-doublet fermionic dark matter in gauge theory of baryons

Journal of High Energy Physics
We are considering a minimal U(1) B extension of the Standard Model (SM) by promoting the baryon number as a local gauge symmetry to accommodate a stable dark matter (DM) candidate. The gauge theory of baryons induces non-trivial triangle gauge anomalies,
Taramati, Rameswar Sahu, Utkarsh Patel, Kirtiman Ghosh, Sudhanwa Patra   +4 more
doaj   +1 more source