Probing new physics with underground accelerators and radioactive sources
| dc.contributor.author | Izaguirre, Eder | |
| dc.contributor.author | Krnjaic, Gordan | |
| dc.contributor.author | Pospelov, Maxim | |
| dc.date.accessioned | 2018-06-27T19:04:22Z | |
| dc.date.available | 2018-06-27T19:04:22Z | |
| dc.date.copyright | 2015 | en_US |
| dc.date.issued | 2015 | |
| dc.description.abstract | New light, weakly coupled particles can be efficiently produced at existing and future high-intensity accelerators and radioactive sources in deep underground laboratories. Once produced, these particles can scatter or decay in large neutrino detectors (e.g.Super-K and Borexino) housed in the same facilities. We discuss the production of weakly coupled scalars φvia nuclear de-excitation of an excited element into the ground state in two viable concrete reactions: the decay of the 0+excited state of 16O populated via a (p, α)reaction on fluorine and from radioactive 144Ce decay where the scalar is produced in the de-excitation of 144Nd∗, which occurs along the decay chain. Subsequent scattering on electrons, e(φ, γ)e, yields a mono-energetic signal that is observable in neutrino detectors. We show that this proposed experimental setupcan cover new territory for masses 250keV≤mφ≤2meand couplings to protons and electrons, 10−11≤gegp≤10−7. This parameter space is motivated by explanations of the “proton charge radius puzzle”, thus this strategy adds a viable new physics component to the neutrino and nuclear astrophysics programs at underground facilities. | en_US |
| dc.description.reviewstatus | Reviewed | en_US |
| dc.description.scholarlevel | Faculty | en_US |
| dc.description.sponsorship | The Perimeter Institute for Theoretical Physics is supported by the Government of Canada through Industry Canada and by the Province of Ontario. | en_US |
| dc.identifier.citation | Izaguirre, E., Krnjaic, G. & Pospelov, M. (2015). Probing new physics with underground accelerators and radioactive sources. Physics Letters B, 740, 61-65. http://dx.doi.org/10.1016/j.physletb.2014.11.037 | en_US |
| dc.identifier.uri | http://dx.doi.org/10.1016/j.physletb.2014.11.037 | |
| dc.identifier.uri | http://hdl.handle.net/1828/9522 | |
| dc.language.iso | en | en_US |
| dc.publisher | Physics Letters B | en_US |
| dc.subject.department | Department of Physics and Astronomy | |
| dc.title | Probing new physics with underground accelerators and radioactive sources | en_US |
| dc.type | Article | en_US |