True muonium (μ+μ-) is one of the heaviest and smallest electromagnetic bound states not containing hadrons, and has never been observed so far. In this work we show that the spin-1 TM state (ortho-TM) can be observed at a discovery level of significance in three months at the CERN SPS North-Area H4A beam line, using 43.7 GeV secondary positrons. In this way, by impinging the positrons on multiple thin low-Z targets, ortho-TM, which decays predominantly to e+e-, can be produced from e+e-→TM interaction on resonance (s∼2mμ).
Feasibility study of true muonium discovery with the CERN-SPS H4 positron beam / Gargiulo, Ruben; Palmisano, Stefano; Di Meco, Elisa. - In: PHYSICAL REVIEW D. - ISSN 2470-0029. - 110:9(2024), pp. 1-9. [10.1103/PhysRevD.110.092015]
Feasibility study of true muonium discovery with the CERN-SPS H4 positron beam
Ruben Gargiulo
;Stefano Palmisano;Elisa Di Meco
2024
Abstract
True muonium (μ+μ-) is one of the heaviest and smallest electromagnetic bound states not containing hadrons, and has never been observed so far. In this work we show that the spin-1 TM state (ortho-TM) can be observed at a discovery level of significance in three months at the CERN SPS North-Area H4A beam line, using 43.7 GeV secondary positrons. In this way, by impinging the positrons on multiple thin low-Z targets, ortho-TM, which decays predominantly to e+e-, can be produced from e+e-→TM interaction on resonance (s∼2mμ).| File | Dimensione | Formato | |
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