Abstract
Beam dump experiments proposed at the SPS are perfectly suited to explore the parameter space of models with long-lived particles, thanks to the combination of a large intensity with a high proton beam energy. In this paper, we study how the exploration power may be augmented further by installing a detector based on liquid argon time projection chamber technology. In particular, we consider several signatures of new physics particles that may be uniquely searched for with such a detector, including double bang events with heavy neutral leptons, inelastic light dark matter, and millicharged particles.
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Acknowledgments
The authors would like to thank G. De Lellis, A. Di Crescenzo, and R. Jacobsson for fruitful discussions. MO has received support from the European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant agreement No. 860881-HIDDeN. The support from the Swiss National Science Foundation (SNSF) under Contract No. 200020_204238 is acknowledged.
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Ferrillo, M., Ovchynnikov, M., Resnati, F. et al. Improving the potential of BDF@SPS to search for new physics with liquid argon time projection chambers. J. High Energ. Phys. 2024, 196 (2024). https://doi.org/10.1007/JHEP02(2024)196
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DOI: https://doi.org/10.1007/JHEP02(2024)196