Dark Matter 2023: From the Smallest to the Largest Scales

Session

Accelerator searches

May 30, 2023, 3:00 PM

Santander (Spain)

113. Recent results and future prospects for Dark matter searches at the LHC - a view from the LHC DM Working Group

Dr Spyros Argyropoulos

5/30/23, 3:00 PM

Plenary Talk

The talk will cover the latest searches for DM at LHC, with particular emphasis on the benchmark models used in the ongoing searches,
including Higgs portal models, simplified models with s and t-channel mediators and models with extended Higgs and gauge sectors.
Prospects for DM searches in Run-3 will also be discussed.

53. Probing new physics at the LUXE experiment

Raquel Quishpe (Karlsruhe Institute of Technology)

5/30/23, 3:30 PM

Accelerator Searches

The proposed LUXE experiment (LASER Und XFEL Experiment) at DESY, Hamburg, using the electron beam from the European XFEL, aims to probe QED in the non-perturbative regime created in collisions between high-intensity laser pulses and high-energy electron or photon beams. This setup also provides a unique opportunity to probe physics beyond the standard model. In this talk we show that by...

47. The Heavy Photon Search Experiment

Norman Graf (SLAC National Accelerator Laboratory)

5/30/23, 3:50 PM

Accelerator Searches

Evidence for Dark Matter particles arising from direct searches has proven to be extremely elusive. An alternative approach to probing the dark sector is to search for new force carriers which can interact with Standard Model particles. A theoretically well-motivated model has proposed the presence of a new U(1) gauge boson, the heavy photon A', which might be a mediator between light thermal...

88. Visible in the lab and invisible in cosmology: decaying sterile neutrinos

Helena Garcia Escudero (University of California Irvine (UCI))

5/30/23, 4:10 PM

Other

HUNTER (Heavy Unseen Neutrinos from Total Energy-momentum Reconstruction) is a future experiment that will search for additional “sterile” neutrinos beyond the Standard Model (BSM) using an instrument for radioactive atom trapping and high-resolution decay product spectrometry. HUNTER will be a concise experimental test for the existence of a sterile neutrino with masses between a 10-100 keV...

138. The search for MeV-GeV Dark Matter and other feebly interacting particles at accelerators

Gaia Lanfranchi (INFN-LNF)

5/31/23, 10:00 AM

Plenary Talk

Particle physics today faces the challenge of explaining the mystery of dark matter, the
origin of matter over anti-matter in the Universe, the origin of the neutrino masses, the apparent fine-tuning of the electro-weak scale, and many other aspects of fundamental physics. Perhaps the most striking frontier to emerge in the search for answers involves new physics at mass scales comparable to...

57. Search for Dark Matter with mono-X Signatures in CMS

Praveen Chandra Tiwari (National Central University, Taiwan)

5/31/23, 10:30 AM

Accelerator Searches

Searches in CMS for dark matter in final states with invisible particles recoiling against visible states are presented. Various topologies and kinematic variables are explored, including jet substructure as a means of tagging heavy bosons. In this talk, we focus on the recent results obtained using the full Run-II dataset collected at the LHC.

56. Hidden sector searches in CMS

Chiara Aimè (Univ. di Pavia e Sez. dell'INFN)

5/31/23, 10:50 AM

Accelerator Searches

New physics may have gone unseen so far at the LHC due to it being hidden in a dark sector. This may result in a rich phenomenology which we can access through portal interactions. In this talk, we present recent results from dark-sector searches in CMS using the full Run-II data-set of the LHC. The analyses are based on proton-proton collision data corresponding to an integrated luminosity of...

59. Non-WIMP dark matter searches with the ATLAS detector

Mohamed Belfkir (UAEU)

5/31/23, 11:10 AM

Accelerator Searches

Collider searches for dark matter (DM) so far have mostly focussed on scenarios where DM particles are produced in association with heavy standard model (SM) particles or jets. However, no deviations from SM predictions have been observed. Several recent phenomenology papers have proposed models that explore the possibility of accessing the strongly coupled dark sector, giving rise to unusual...

58. Dark matter searches via Higgs SM or extended SM sectors with the ATLAS Detector

Janna Katharina Behr (DESY)

5/31/23, 12:00 PM

Accelerator Searches

The presence of a non-baryonic Dark Matter (DM) component in the Universe is inferred from the observation of its gravitational interaction. If Dark Matter interacts weakly with the Standard Model (SM) it could be produced at the LHC. The ATLAS Collaboration has developed a broad search program for DM candidates in final states with large missing transverse momentum produced in association...