Search for dark light mediators with short-baseline detectors at Fermilab
Probing dark sectors with neutrino physics and low-energy accelerators
Searches on dark matter and for the ultra high energy cosmic ray composition: prob...
| Grant number: | 21/12305-7 |
| Support Opportunities: | Scholarships abroad - Research Internship - Post-doctor |
| Start date: | March 01, 2023 |
| End date: | June 30, 2023 |
| Field of knowledge: | Physical Sciences and Mathematics - Physics - Elementary Particle Physics and Fields |
| Principal Investigator: | Oscar José Pinto Eboli |
| Grantee: | Peter Reimitz |
| Supervisor: | Pedro Accioly Nogueira Machado |
| Host Institution: | Instituto de Física (IF). Universidade de São Paulo (USP). São Paulo , SP, Brazil |
| Institution abroad: | Fermi National Accelerator Laboratory (Fermilab), United States |
| Associated to the scholarship: | 20/10004-7 - Dark matter in the sub-GeV region, BP.PD |
Abstract Among all possibilities for beyond the Standard Model (BSM) physics, sub-GeV dark matter (DM) candidates are gaining significant attention recently. In many of those models, the DM candidate is coupling to a new U(1) gauge group and its interaction with the SM are mediated by a new vector boson. A promising way to probe these models are beam-dump experiments in which DM is produced in the collision of a proton on a target and travels to a near detector, interacting with nuclei or electrons. So far, it is assumed that the DM is produced through bremsstrahlung, and in the decay of light pseudoscalar mesons. Nevertheless, there might be additional production modes from initial- and final-state radiation as well as within the hadronization of quarks. The impact of these additional modes is yet unclear and might differ largely depending on the forward and transverse direction of the DM with respect to the beam line. Either way it would be beneficial for the movable detector of the Dune-Prism in order to set stronger constraints on vector mediator models coupling to DM. With the focus being on dark photons, we would like to extend the coverage of models that can be probed by Dune-Prism. Apart from prominent examples like U(1)_X models, we can in principle study vector mediator models with arbitrary couplings to quarks. The goal of the BEPE fellowship project is to obtain a broader and deeper understanding of the potential of Dune-Prism to explore vector mediator models with couplings to DM with sub-GeV masses. (AU) | |
| News published in Agência FAPESP Newsletter about the scholarship: | |
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