Cosmic-ray Research Division
Institute for Space–Earth Environmental Research, Nagoya University

Annual Research Report of FY2019

Publications

  1. M. Gaug, S. Fegan, A. M. W. Mitchell, et al. “Using Muon Rings for the Calibration of the Cherenkov Telescope Array: A Systematic Review of the Method and Its Potential Accuracy” The Astrophysical Journal Supplement Series 243, 11 (2019)
    https://doi.org/10.3847/1538-4365/ab2123

  2. Yuki Nakamura, Akira Okumura, Hiroyasu Tajima, Nobuhito Yamane & Anatolii Zenin “Characterization of SiPM Optical Crosstalk and Its Dependence on the Protection-Window Thickness” Proceedings of the 5th International Workshop on New Photon-Detectors (PD18) (2019)
    https://doi.org/10.7566/jpscp.27.011003

  3. Akira Okumura, Akira Asano, Kazuhiro Furuta, et al. “Development of a UV-Transparent Lens Array for Enlarging the Effective Area of Multichannel SiPMs” Proceedings of the 5th International Workshop on New Photon-Detectors (PD18) (2019)
    https://doi.org/10.7566/jpscp.27.011009

  4. A. Acharyya, I. Agudo, E.O. Angüner, et al. “Monte Carlo studies for the optimisation of the Cherenkov Telescope Array layout” Astroparticle Physics 111, 35–53 (2019)
    https://doi.org/10.1016/j.astropartphys.2019.04.001

  5. Katsuhiro Hayashi, Tsunefumi Mizuno, Yasuo Fukui, et al. “Fermi-LATγ-Ray Study of the Interstellar Medium and Cosmic Rays in the Chamaeleon Molecular Cloud Complex: A Look at the Dark Gas as Optically Thick H i” The Astrophysical Journal 884, 130 (2019)
    https://doi.org/10.3847/1538-4357/ab4351

  6. Colin Adams, Giovanni Ambrosi, Michelangelo Ambrosio, et al. “Characterization and assembly of near-ultraviolet SiPMs for the Schwarzschild-Couder medium-size telescope proposed for the CTA Observatory” Hard X-Ray, Gamma-Ray, and Neutron Detector Physics XXI (2019)
    https://doi.org/10.1117/12.2530617

  7. T. Mizuno, S. Abdollahi, Y. Fukui, et al. “Study of the Cosmic Rays and Interstellar Medium in Local H i Clouds Using Fermi-LAT Gamma-Ray Observations” The Astrophysical Journal 890, 120 (2020)
    https://doi.org/10.3847/1538-4357/ab6a99

  8. S.A. Leach, J.S. Lapington, D. Ross, et al. “Front-end electronics of the Compact High Energy Camera” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 952, 161746 (2020)
    https://doi.org/10.1016/j.nima.2018.12.061

  9. Hirohisa Sakurai, Fuyuki Tokanai, Fusa Miyake, et al. “Prolonged production of 14C during the ~660 BCE solar proton event from Japanese tree rings” Scientific Reports 10, 660 (2020)
    https://doi.org/10.1038/s41598-019-57273-2

  10. A. Scifo, M. Kuitems, A. Neocleous, et al. “Radiocarbon Production Events and their Potential Relationship with the Schwabe Cycle” Scientific Reports 9, 17056 (2019)
    https://doi.org/10.1038/s41598-019-53296-x

  11. Hisashi Hayakawa, Yasuyuki Mitsuma, Yusuke Ebihara & Fusa Miyake “The Earliest Candidates of Auroral Observations in Assyrian Astrological Reports: Insights on Solar Activity around 660 BCE” The Astrophysical Journal 884, L18 (2019)
    https://doi.org/10.3847/2041-8213/ab42e4

  12. Cheongho Han, Ian A. Bond, Andrzej Udalski, et al. “OGLE-2018-BLG-0022: First Prediction of an Astrometric Microlensing Signal from a Photometric Microlensing Event” The Astrophysical Journal 876, 81 (2019)
    https://doi.org/10.3847/1538-4357/ab1539

  13. Clément Ranc, David P. Bennett, Yuki Hirao, et al. “OGLE-2015-BLG-1670Lb: A Cold Neptune beyond the Snow Line in the Provisional WFIRST Microlensing Survey Field” The Astronomical Journal 157, 232 (2019)
    https://doi.org/10.3847/1538-3881/ab141b

  14. Youn Kil Jung, Andrew Gould, Andrzej Udalski, et al. “Spitzer Parallax of OGLE-2018-BLG-0596: A Low-mass-ratio Planet around an M Dwarf” The Astronomical Journal 158, 28 (2019)
    https://doi.org/10.3847/1538-3881/ab237f

  15. Y Tsapras, A Cassan, C Ranc, et al. “An analysis of binary microlensing event OGLE-2015-BLG-0060” Monthly Notices of the Royal Astronomical Society 487, 4603–4614 (2019)
    https://doi.org/10.1093/mnras/stz1404

  16. S-S Li, W Zang, A Udalski, et al. “OGLE-2017-BLG-1186: first application of asteroseismology and Gaussian processes to microlensing” Monthly Notices of the Royal Astronomical Society 488, 3308–3323 (2019)
    https://doi.org/10.1093/mnras/stz1873

  17. Cheongho Han, Jennifer C. Yee, Andrzej Udalski, et al. “Spectroscopic Mass and Host-star Metallicity Measurements for Newly Discovered Microlensing Planet OGLE-2018-BLG-0740Lb” The Astronomical Journal 158, 102 (2019)
    https://doi.org/10.3847/1538-3881/ab2df4

  18. Cheongho Han, David P. Bennett, Andrzej Udalski, et al. “OGLE-2018-BLG-1011Lb,c: Microlensing Planetary System with Two Giant Planets Orbiting a Low-mass Star” The Astronomical Journal 158, 114 (2019)
    https://doi.org/10.3847/1538-3881/ab2f74

  19. E. Ortiz, J. F. Valdés-Galicia, A. Hurtado, et al. “Neutron and gamma-ray fluxes measured by SciCRT prototype at the top of Sierra Negra volcano, Mexico” Revista Mexicana de Física 65, 545 (2019)
    https://doi.org/10.31349/revmexfis.65.545

  20. I.-G. Shin, J. C. Yee, A. Gould, et al. “The 2L1S/1L2S Degeneracy for Two Microlensing Planet Candidates Discovered by the KMTNet Survey in 2017” The Astronomical Journal 158, 199 (2019)
    https://doi.org/10.3847/1538-3881/ab46a5

  21. M. Nagakane, Chien-Hsiu Lee, N. Koshimoto, et al. “OGLE-2015-BLG-1649Lb: A Gas Giant Planet around a Low-mass Dwarf” The Astronomical Journal 158, 212 (2019)
    https://doi.org/10.3847/1538-3881/ab4881

  22. Iona Kondo, Takahiro Sumi, David P. Bennett, et al. “MOA-bin-29b: A Microlensing Gas-giant Planet Orbiting a Low-mass Host Star” The Astronomical Journal 158, 224 (2019)
    https://doi.org/10.3847/1538-3881/ab4e9e

  23. Cheongho Han, Chung-Uk Lee, Andrzej Udalski, et al. “OGLE-2018-BLG-1700L: Microlensing Planet in Binary Stellar System” The Astronomical Journal 159, 48 (2020)
    https://doi.org/10.3847/1538-3881/ab5db9

  24. Shota Miyazaki, Takahiro Sumi, David P. Bennett, et al. “OGLE-2013-BLG-0911Lb: A Secondary on the Brown-dwarf Planet Boundary around an M Dwarf” The Astronomical Journal 159, 76 (2020)
    https://doi.org/10.3847/1538-3881/ab64de

  25. Weicheng Zang, Yossi Shvartzvald, Tianshu Wang, et al. “Spitzer Microlensing Parallax Reveals Two Isolated Stars in the Galactic Bulge” The Astrophysical Journal 891, 3 (2020)
    https://doi.org/10.3847/1538-4357/ab6ff8

  26. Yutaka Matsubara “Ground Level Observation of Solar Neutrons” RADIOISOTOPES 68, 907–915 (2019)
    https://doi.org/10.3769/radioisotopes.68.907

  27. Yasushi Muraki, Jose F Valdés-Galicia, Luis Xavier González, et al. “Possible detection of solar gamma-rays by ground-level detectors in solar flares on 2011 March 7” Publications of the Astronomical Society of Japan 72 (2020)
    https://doi.org/10.1093/pasj/psz141

  28. S. Abdollahi, F. Acero, M. Ackermann, et al. “Fermi Large Area Telescope Fourth Source Catalog” The Astrophysical Journal Supplement Series 247, 33 (2020)
    https://doi.org/10.3847/1538-4365/ab6bcb

  29. M. Ajello, M. Arimoto, M. Axelsson, et al. “Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-energy Emission from Prompt to Afterglow” The Astrophysical Journal 890, 9 (2020)
    https://doi.org/10.3847/1538-4357/ab5b05

  30. M. Ajello, M. Arimoto, K. Asano, et al. “Bright Gamma-Ray Flares Observed in GRB 131108A” The Astrophysical Journal 886, L33 (2019)
    https://doi.org/10.3847/2041-8213/ab564f

  31. M. Ajello, L. Baldini, G. Barbiellini, et al. “A Search for Cosmic-Ray Proton Anisotropy with the Fermi Large Area Telescope” The Astrophysical Journal 883, 33 (2019)
    https://doi.org/10.3847/1538-4357/ab3a2e

  32. M. Ajello, M. Arimoto, M. Axelsson, et al. “A Decade of Gamma-Ray Bursts Observed by Fermi-LAT: The Second GRB Catalog” The Astrophysical Journal 878, 52 (2019)
    https://doi.org/10.3847/1538-4357/ab1d4e

  33. M L Ahnen, S Ansoldi, L A Antonelli, et al. “MAGIC andFermi-LAT gamma-ray results on unassociated HAWC sources” Monthly Notices of the Royal Astronomical Society 485, 356–366 (2019)
    https://doi.org/10.1093/mnras/stz089

  34. Masanori Ohno, Yasushi Fukazawa, Tsunefumi Mizuno, et al. “Event-selection technique for the multi-layer Si−CdTe Compton camera onboard Hitomi” Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 924, 327–331 (2019)
    https://doi.org/10.1016/j.nima.2018.09.114

  35. E. Aprile, J. Aalbers, F. Agostini, et al. “Constraining the Spin-Dependent WIMP-Nucleon Cross Sections with XENON1T” Physical Review Letters 122, 141301 (2019)
    https://doi.org/10.1103/physrevlett.122.141301

  36. XENON Collaboration* “Observation of two-neutrino double electron capture in 124Xe with XENON1T” Nature 568, 532–535 (2019)
    https://doi.org/10.1038/s41586-019-1124-4

  37. E. Aprile, J. Aalbers, F. Agostini, et al. “The XENON1T data acquisition system” Journal of Instrumentation 14, P07016–P07016 (2019)
    https://doi.org/10.1088/1748-0221/14/07/p07016

  38. E. Aprile, J. Aalbers, F. Agostini, et al. “XENON1T dark matter data analysis: Signal and background models and statistical inference” Physical Review D 99, 112009 (2019)
    https://doi.org/10.1103/physrevd.99.112009

  39. E. Aprile, J. Aalbers, F. Agostini, et al. “XENON1T dark matter data analysis: Signal reconstruction, calibration, and event selection” Physical Review D 100, 21516 (2019)
    https://doi.org/10.1103/physrevd.100.052014

  40. E. Aprile, J. Aalbers, F. Agostini, et al. “Search for Light Dark Matter Interactions Enhanced by the Migdal Effect or Bremsstrahlung in XENON1T” Physical Review Letters 123, 241803 (2019)
    https://doi.org/10.1103/physrevlett.123.241803

  41. E. Aprile, J. Aalbers, F. Agostini, et al. “Light Dark Matter Search with Ionization Signals in XENON1T” Physical Review Letters 123, 251801 (2019)
    https://doi.org/10.1103/physrevlett.123.251801

  42. Kosuke Ozaki, Shingo Kazama, Masaki Yamashita, Yoshitaka Itow & Shigetaka Moriyama “Characterization of new photo-detectors for the future dark matter experiments with liquid xenon” Journal of Physics: Conference Series 1468, 012238 (2020)
    https://doi.org/10.1088/1742-6596/1468/1/012238

  43. M. Tanaka, K. Abe, C. Bronner, et al. “Search for proton decay into three charged leptons in 0.37 megaton-years exposure of the Super-Kamiokande” Physical Review D 101, 21513 (2020)
    https://doi.org/10.1103/physrevd.101.052011

  44. Yoshitaka Itow “Initial Results from the RHICf Experiment” Proceedings of the 8th International Conference on Quarks and Nuclear Physics (QNP2018) (2019)
    https://doi.org/10.7566/jpscp.26.021020

  45. K. Hagiwara, K. Abe, C. Bronner, et al. “Search for Astronomical Neutrinos from Blazar TXS 0506+056 in Super-Kamiokande” The Astrophysical Journal 887, L6 (2019)
    https://doi.org/10.3847/2041-8213/ab5863

  46. C. Simpson, K. Abe, C. Bronner, et al. “Sensitivity of Super-Kamiokande with Gadolinium to Low Energy Antineutrinos from Pre-supernova Emission” The Astrophysical Journal 885, 133 (2019)
    https://doi.org/10.3847/1538-4357/ab4883

  47. Eugenio Berti, Oscar Adriani, Lorenzo Bonechi, et al. “The LHCf experiment: recent physics results” Proceedings of The 39th International Conference on High Energy Physics — PoS(ICHEP2018) (2019)
    https://doi.org/10.22323/1.340.0207

  48. Y. Itow, K. Masuda, H. Menjo, et al. “Recent results from the LHCf and RHICf experiments” EPJ Web of Conferences 208, 2564 (2019)
    https://doi.org/10.1051/epjconf/201920805004

  49. Ken Ohashi, Hiroaki Menjo & Yoshitaka Itow “MC study for the effect of diffractive events on air shower developments” Proceedings of The 4th KMI International Symposium — PoS(KMI2019) (2019)
    https://doi.org/10.22323/1.356.0026

  50. H.P. Dembinski, J.C. Arteaga-Velázquez, L. Cazon, et al. “Report on Tests and Measurements of Hadronic Interaction Properties with Air Showers” EPJ Web of Conferences 210, 1028 (2019)
    https://doi.org/10.1051/epjconf/201921002004

  51. M. H. Kim, B. Hong, Y. Goto, et al. “Transverse single spin asymmetry for very forward π0 production in polarized proton-proton collisions at √s = 510 GeV” EPJ Web of Conferences 208, 2567 (2019)
    https://doi.org/10.1051/epjconf/201920805007