Mr Simon Gardner
- Research Associate (School of Physics & Astronomy)
https://orcid.org/0000-0001-6995-5532Publications
2024
Afzal, F. et al. (2024) First measurement using elliptically polarized photons of the double-polarization observable E for γp→pπ0 and γp→nπ+. Physical Review Letters, 132(12), 121902. (doi: 10.1103/PhysRevLett.132.121902) (PMID:38579200)
2023
Bashkanov, M. et al. (2023) Neutron polarisation transfer, Cx′, in π+ photoproduction off the proton, d(γ⊙,n→π+)nspec. Physics Letters B, 847, 138283. (doi: 10.1016/j.physletb.2023.138283)
Ghosal, D. et al. (2023) Helicity dependent cross sections for the photoproduction of π0π± pairs from quasi-free nucleons. Physics Letters B, 847, 138273. (doi: 10.1016/j.physletb.2023.138273)
Van Hulse, C. et al. (2023) Evaluation of longitudinal double-spin asymmetry measurements in semi-inclusive deep-inelastic scattering from the proton for the ECCE detector design. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1056, 168563. (doi: 10.1016/j.nima.2023.168563)
Bock, F. et al. (2023) Design and simulated performance of calorimetry systems for the ECCE detector at the electron ion collider. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1055, 168464. (doi: 10.1016/j.nima.2023.168464)
Bashkanov, M. et al. (2023) First measurement of polarisation transfer Cx′n in deuteron photodisintegration. Physics Letters B, 844, 138080. (doi: 10.1016/j.physletb.2023.138080)
Bylinkin, A. et al. (2023) Detector requirements and simulation results for the EIC exclusive, diffractive and tagging physics program using the ECCE detector concept. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1052, 168238. (doi: 10.1016/j.nima.2023.168238)
Li, X. et al. (2023) Exclusive J/ψ detection and physics with ECCE. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1048, 167956. (doi: 10.1016/j.nima.2022.167956)
Bernauer, J.C. et al. (2023) Scientific computing plan for the ECCE detector at the Electron Ion Collider. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1047, 167859. (doi: 10.1016/j.nima.2022.167859)
Fanelli, C. et al. (2023) AI-assisted optimization of the ECCE tracking system at the Electron Ion Collider. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1047, 167748. (doi: 10.1016/j.nima.2022.167748)
2022
Adam, J. et al. (2022) ATHENA detector proposal — a totally hermetic electron nucleus apparatus proposed for IP6 at the Electron-Ion Collider. Journal of Instrumentation, 17(10), P10019. (doi: 10.1088/1748-0221/17/10/p10019)
Clarkson, A., Gardner, S. , Ireland, D. , Jebali, R., Kaiser, R. , Mahon, D. , Ryan, M., Shearer, C. and Yang, G. (2022) Muon imaging applications for nuclear waste management and decommissioning. Journal of Advanced Instrumentation in Science, 2022, 256. (doi: 10.31526/jais.2022.256)
Cividini, F. et al. (2022) Measurement of the helicity dependence for single π0 photoproduction from the deuteron. European Physical Journal A, 58(6), 113. (doi: 10.1140/epja/s10050-022-00760-4)
Mornacchi, E. et al. (2022) Measurement of Compton scattering at MAMI for the extraction of the electric and magnetic polarizabilities of the proton. Physical Review Letters, 128(13), 132503. (doi: 10.1103/PhysRevLett.128.132503)
2021
Niederleithinger, E. et al. (2021) Muon tomography of the interior of a reinforced concrete block: first experimental proof of concept. Journal of Nondestructive Evaluation, 40(3), 65. (doi: 10.1007/s10921-021-00797-3)
Mullen, C. et al. (2021) Single π0 production off neutrons bound in deuteron with linearly polarized photons. European Physical Journal A, 57(6), 205. (doi: 10.1140/epja/s10050-021-00521-9)
2020
Rofors, E. et al. (2020) Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 984, 164604. (doi: 10.1016/j.nima.2020.164604)
Paudyal, D. et al. (2020) Extracting the spin polarizabilities of the proton by measurement of Compton double-polarization observables. Physical Review C, 102(3), 035205. (doi: 10.1103/PhysRevC.102.035205)
Dieterle, M. et al. (2020) Helicity-dependent cross sections for the photoproduction of π0 pairs from nucleons. Physical Review Letters, 125(6), 062001. (doi: 10.1103/PhysRevLett.125.062001)
Bashkanov, M. et al. (2020) Signatures of the d*(2380) Hexaquark in d(γ,pn→). Physical Review Letters, 124(13), 132001. (doi: 10.1103/PhysRevLett.124.132001)
Sokhoyan, V. et al. (2020) Measurement of the beam-helicity asymmetry in photoproduction of π0η pairs on carbon, aluminum, and lead. Physics Letters B, 802, 135243. (doi: 10.1016/j.physletb.2020.135243)
Simpson, A., Clarkson, A., Gardner, S. , Al Jebali, R., Kaiser, R. , Mahon, D. , Roe, J., Ryan, M., Shearer, C. and Yang, G. (2020) Muon tomography for the analysis of in-container vitrified products. Applied Radiation and Isotopes, 157, 109033. (doi: 10.1016/j.apradiso.2019.109033)
2019
Briscoe, W. J. et al. (2019) Cross section for γn → π0n measured at the Mainz A2 experiment. Physical Review C, 100(6), 065205. (doi: 10.1103/PhysRevC.100.065205)
Akondi, C. S. et al. (2019) Experimental study of the γp→K0Σ+, γn→K0Λ, and γn→K0Σ0 reactions at the Mainz Microtron. European Physical Journal A, 55(11), 202. (doi: 10.1140/epja/i2019-12924-x)
2018
Mahon, D. , Clarkson, A., Gardner, S. , Ireland, D. , Jebali, R., Kaiser, R. , Ryan, M., Shearer, C. and Yang, G. (2018) First-of-a-kind muography for nuclear waste characterization. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 377(2137), 20180048. (doi: 10.1098/rsta.2018.0048) (PMID:30530549)
Yang, G., Clarkson, T., Gardner, S. , Ireland, D. , Kaiser, R. , Mahon, D. , Al Jebali, R., Shearer, C. and Ryan, M. (2018) Novel muon imaging techniques. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 377, 20180062. (doi: 10.1098/rsta.2018.0062) (PMID:30530538)
Adlarson, P. et al. (2018) Measurement of the decay η′→π0π0η at MAMI. Physical Review D, 98, 012001. (doi: 10.1103/PhysRevD.98.012001)
Prakhov, S. et al. (2018) High-statistics measurement of the η→3π0 decay at the Mainz Microtron. Physical Review C, 97, 065203. (doi: 10.1103/PhysRevC.97.065203)
Prakhov, S. et al. (2018) High-statistics measurement of the η → 3π0 decay at MAMI. Physical Review C, 97, 065203. (doi: 10.1103/PhysRevC.97.065203)
Sokhoyan, V. et al. (2018) Experimental study of the γp→π0ηp reaction with the A2 setup at the Mainz Microtron. Physical Review C, 97, 055212. (doi: 10.1103/PhysRevC.97.055212)
Yang, G.L., Clarkson, A., Kaiser, R. , Mahon, D. , Ryan, M. and Gardner, S. (2018) Muon Imaging for Safeguards Application. In: Symposium on International Safeguards: Building Future Safeguards Capabilities, Vienna, Austria, 5-8 Nov 2018,
2017
Dieterle, M. et al. (2017) First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons. Physics Letters B, 770, pp. 523-531. (doi: 10.1016/j.physletb.2017.04.079)
Kashevarov, V.L. et al. (2017) Study of η and η' photoproduction at MAMI. Physical Review Letters, 118(21), 212001. (doi: 10.1103/PhysRevLett.118.212001) (PMID:28598665)
Witthauer, L. et al. (2017) Helicity-dependent cross sections and double-polarization observable E in η photoproduction from quasifree protons and neutrons. Physical Review C, 95(5), 055201. (doi: 10.1103/PhysRevC.95.055201)
Adlarson, P. et al. (2017) Measurement of the ω→π0e+e− and η→e+e−γ Dalitz decays with the A2 setup at the Mainz Microtron. Physical Review C, 95, 035208. (doi: 10.1103/PhysRevC.95.035208)
Adlarson, P. et al. (2017) Measurement of the π0→e+e−γ Dalitz decay at the Mainz Microtron. Physical Review C, 95(2), 025202. (doi: 10.1103/PhysRevC.95.025202)
2016
Gardner, S. et al. (2016) Photon asymmetry measurements of γp → π0p for Eγ = 320–650 MeV. European Physical Journal A, 52, 333. (doi: 10.1140/epja/i2016-16333-5)
Witthauer, L. et al. (2016) Insight into the narrow structure in η-photoproduction on the neutron from helicity dependent cross sections. Physical Review Letters, 117(13), 132505. (doi: 10.1103/PhysRevLett.117.132502) (PMID:27715117)
2015
Al Jebali, R. A.I. et al. (2015) A helium gas scintillator active target for photoreaction measurements. European Physical Journal A, 51, 123. (doi: 10.1140/epja/i2015-15123-y)
Articles
Afzal, F. et al. (2024) First measurement using elliptically polarized photons of the double-polarization observable E for γp→pπ0 and γp→nπ+. Physical Review Letters, 132(12), 121902. (doi: 10.1103/PhysRevLett.132.121902) (PMID:38579200)
Bashkanov, M. et al. (2023) Neutron polarisation transfer, Cx′, in π+ photoproduction off the proton, d(γ⊙,n→π+)nspec. Physics Letters B, 847, 138283. (doi: 10.1016/j.physletb.2023.138283)
Ghosal, D. et al. (2023) Helicity dependent cross sections for the photoproduction of π0π± pairs from quasi-free nucleons. Physics Letters B, 847, 138273. (doi: 10.1016/j.physletb.2023.138273)
Van Hulse, C. et al. (2023) Evaluation of longitudinal double-spin asymmetry measurements in semi-inclusive deep-inelastic scattering from the proton for the ECCE detector design. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1056, 168563. (doi: 10.1016/j.nima.2023.168563)
Bock, F. et al. (2023) Design and simulated performance of calorimetry systems for the ECCE detector at the electron ion collider. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1055, 168464. (doi: 10.1016/j.nima.2023.168464)
Bashkanov, M. et al. (2023) First measurement of polarisation transfer Cx′n in deuteron photodisintegration. Physics Letters B, 844, 138080. (doi: 10.1016/j.physletb.2023.138080)
Bylinkin, A. et al. (2023) Detector requirements and simulation results for the EIC exclusive, diffractive and tagging physics program using the ECCE detector concept. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1052, 168238. (doi: 10.1016/j.nima.2023.168238)
Li, X. et al. (2023) Exclusive J/ψ detection and physics with ECCE. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1048, 167956. (doi: 10.1016/j.nima.2022.167956)
Bernauer, J.C. et al. (2023) Scientific computing plan for the ECCE detector at the Electron Ion Collider. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1047, 167859. (doi: 10.1016/j.nima.2022.167859)
Fanelli, C. et al. (2023) AI-assisted optimization of the ECCE tracking system at the Electron Ion Collider. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 1047, 167748. (doi: 10.1016/j.nima.2022.167748)
Adam, J. et al. (2022) ATHENA detector proposal — a totally hermetic electron nucleus apparatus proposed for IP6 at the Electron-Ion Collider. Journal of Instrumentation, 17(10), P10019. (doi: 10.1088/1748-0221/17/10/p10019)
Clarkson, A., Gardner, S. , Ireland, D. , Jebali, R., Kaiser, R. , Mahon, D. , Ryan, M., Shearer, C. and Yang, G. (2022) Muon imaging applications for nuclear waste management and decommissioning. Journal of Advanced Instrumentation in Science, 2022, 256. (doi: 10.31526/jais.2022.256)
Cividini, F. et al. (2022) Measurement of the helicity dependence for single π0 photoproduction from the deuteron. European Physical Journal A, 58(6), 113. (doi: 10.1140/epja/s10050-022-00760-4)
Mornacchi, E. et al. (2022) Measurement of Compton scattering at MAMI for the extraction of the electric and magnetic polarizabilities of the proton. Physical Review Letters, 128(13), 132503. (doi: 10.1103/PhysRevLett.128.132503)
Niederleithinger, E. et al. (2021) Muon tomography of the interior of a reinforced concrete block: first experimental proof of concept. Journal of Nondestructive Evaluation, 40(3), 65. (doi: 10.1007/s10921-021-00797-3)
Mullen, C. et al. (2021) Single π0 production off neutrons bound in deuteron with linearly polarized photons. European Physical Journal A, 57(6), 205. (doi: 10.1140/epja/s10050-021-00521-9)
Rofors, E. et al. (2020) Response of a Li-glass/multi-anode photomultiplier detector to focused proton and deuteron beams. Nuclear Instruments and Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment, 984, 164604. (doi: 10.1016/j.nima.2020.164604)
Paudyal, D. et al. (2020) Extracting the spin polarizabilities of the proton by measurement of Compton double-polarization observables. Physical Review C, 102(3), 035205. (doi: 10.1103/PhysRevC.102.035205)
Dieterle, M. et al. (2020) Helicity-dependent cross sections for the photoproduction of π0 pairs from nucleons. Physical Review Letters, 125(6), 062001. (doi: 10.1103/PhysRevLett.125.062001)
Bashkanov, M. et al. (2020) Signatures of the d*(2380) Hexaquark in d(γ,pn→). Physical Review Letters, 124(13), 132001. (doi: 10.1103/PhysRevLett.124.132001)
Sokhoyan, V. et al. (2020) Measurement of the beam-helicity asymmetry in photoproduction of π0η pairs on carbon, aluminum, and lead. Physics Letters B, 802, 135243. (doi: 10.1016/j.physletb.2020.135243)
Simpson, A., Clarkson, A., Gardner, S. , Al Jebali, R., Kaiser, R. , Mahon, D. , Roe, J., Ryan, M., Shearer, C. and Yang, G. (2020) Muon tomography for the analysis of in-container vitrified products. Applied Radiation and Isotopes, 157, 109033. (doi: 10.1016/j.apradiso.2019.109033)
Briscoe, W. J. et al. (2019) Cross section for γn → π0n measured at the Mainz A2 experiment. Physical Review C, 100(6), 065205. (doi: 10.1103/PhysRevC.100.065205)
Akondi, C. S. et al. (2019) Experimental study of the γp→K0Σ+, γn→K0Λ, and γn→K0Σ0 reactions at the Mainz Microtron. European Physical Journal A, 55(11), 202. (doi: 10.1140/epja/i2019-12924-x)
Mahon, D. , Clarkson, A., Gardner, S. , Ireland, D. , Jebali, R., Kaiser, R. , Ryan, M., Shearer, C. and Yang, G. (2018) First-of-a-kind muography for nuclear waste characterization. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 377(2137), 20180048. (doi: 10.1098/rsta.2018.0048) (PMID:30530549)
Yang, G., Clarkson, T., Gardner, S. , Ireland, D. , Kaiser, R. , Mahon, D. , Al Jebali, R., Shearer, C. and Ryan, M. (2018) Novel muon imaging techniques. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 377, 20180062. (doi: 10.1098/rsta.2018.0062) (PMID:30530538)
Adlarson, P. et al. (2018) Measurement of the decay η′→π0π0η at MAMI. Physical Review D, 98, 012001. (doi: 10.1103/PhysRevD.98.012001)
Prakhov, S. et al. (2018) High-statistics measurement of the η→3π0 decay at the Mainz Microtron. Physical Review C, 97, 065203. (doi: 10.1103/PhysRevC.97.065203)
Prakhov, S. et al. (2018) High-statistics measurement of the η → 3π0 decay at MAMI. Physical Review C, 97, 065203. (doi: 10.1103/PhysRevC.97.065203)
Sokhoyan, V. et al. (2018) Experimental study of the γp→π0ηp reaction with the A2 setup at the Mainz Microtron. Physical Review C, 97, 055212. (doi: 10.1103/PhysRevC.97.055212)
Dieterle, M. et al. (2017) First measurement of the polarization observable E and helicity-dependent cross sections in single π0 photoproduction from quasi-free nucleons. Physics Letters B, 770, pp. 523-531. (doi: 10.1016/j.physletb.2017.04.079)
Kashevarov, V.L. et al. (2017) Study of η and η' photoproduction at MAMI. Physical Review Letters, 118(21), 212001. (doi: 10.1103/PhysRevLett.118.212001) (PMID:28598665)
Witthauer, L. et al. (2017) Helicity-dependent cross sections and double-polarization observable E in η photoproduction from quasifree protons and neutrons. Physical Review C, 95(5), 055201. (doi: 10.1103/PhysRevC.95.055201)
Adlarson, P. et al. (2017) Measurement of the ω→π0e+e− and η→e+e−γ Dalitz decays with the A2 setup at the Mainz Microtron. Physical Review C, 95, 035208. (doi: 10.1103/PhysRevC.95.035208)
Adlarson, P. et al. (2017) Measurement of the π0→e+e−γ Dalitz decay at the Mainz Microtron. Physical Review C, 95(2), 025202. (doi: 10.1103/PhysRevC.95.025202)
Gardner, S. et al. (2016) Photon asymmetry measurements of γp → π0p for Eγ = 320–650 MeV. European Physical Journal A, 52, 333. (doi: 10.1140/epja/i2016-16333-5)
Witthauer, L. et al. (2016) Insight into the narrow structure in η-photoproduction on the neutron from helicity dependent cross sections. Physical Review Letters, 117(13), 132505. (doi: 10.1103/PhysRevLett.117.132502) (PMID:27715117)
Al Jebali, R. A.I. et al. (2015) A helium gas scintillator active target for photoreaction measurements. European Physical Journal A, 51, 123. (doi: 10.1140/epja/i2015-15123-y)
Conference Proceedings
Yang, G.L., Clarkson, A., Kaiser, R. , Mahon, D. , Ryan, M. and Gardner, S. (2018) Muon Imaging for Safeguards Application. In: Symposium on International Safeguards: Building Future Safeguards Capabilities, Vienna, Austria, 5-8 Nov 2018,
