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arXiv:2603.24339 (physics)
[Submitted on 25 Mar 2026]

Title:Molecular effects in low-energy muon transfer from muonic hydrogen to oxygen

Authors:I. Boradjiev, A. Adamczak, D. Bakalov, M. Baruzzo, R. Benocci, M. Bonesini, S. Capra, E. Christova, M. Clemenza, M. Danailov, P. Danev, E. Fasci, L. Gianfrani, A.D. Hillier, K. Ishida, A. Menegolli, E. Mocchiutti, S. Monzani, L. Moretti, C. Pizzolotto, R. Rossini, A. Sbrizzi, M. Stoilov, H.S. Tonchev, A. Vacchi, E. Vallazza, K. Yokoyama
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Abstract:In the present study we determine from the available experimental data the cross section of muon transfer to molecular oxygen at low energies with account of the oxygen molecule structure. Building on an earlier work, the results highlight the role of the molecular structure effects and signifcantly improve the agreement with theoretical calculations of the muon transfer rate. An effcient computational model of the kinetics of processes involving muonic hydrogen atoms in gaseous mixture of H2 and O2 is developed and analyzed. The model is applied in the description of the FAMU experiment for the measurement of the hyperfine splitting in muonic hydrogen and the Zemach radius of the proton.
Comments: 26 pages, 7 figures
Subjects: Atomic Physics (physics.atom-ph)
Cite as: arXiv:2603.24339 [physics.atom-ph]
  (or arXiv:2603.24339v1 [physics.atom-ph] for this version)
  https://doi.org/10.48550/arXiv.2603.24339

Submission history

From: Petar Danev [view email]
[v1] Wed, 25 Mar 2026 14:20:33 UTC (641 KB)
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