A search for resonances in the p mu e system
2014 (English)In: Journal of Physics B: Atomic, Molecular and Optical Physics, ISSN 0953-4075, E-ISSN 1361-6455, Vol. 47, no 17, 175003Article in journal (Refereed) Published
The charge radius of the proton has recently been determined from 2s-2p spectroscopy of muonic hydrogen, giving a result which significantly deviates from earlier measurements. One hypothesis is that this discrepancy could arise because a metastable p mu e state is formed under the p mu (2s) threshold. We search for such a state by considering the three-body pex and p mu x systems, where x is a particle with charge -e and a mass which is varied between the electron and muon mass. We identify a new class of resonances, which extends the mass range allowing formation of resonances compared to an earlier work. We conclude that no p mu e resonances relevant for 2s-2p spectroscopy in muonic hydrogen can exist.
Place, publisher, year, edition, pages
2014. Vol. 47, no 17, 175003
proton radius, muonic hydrogen, three-body systems, resonances
Research subject Theoretical Physics
IdentifiersURN: urn:nbn:se:su:diva-108371DOI: 10.1088/0953-4075/47/17/175003ISI: 000341976100003OAI: oai:DiVA.org:su-108371DiVA: diva2:758116