Overview of Particle Geophysics Elementary Particles Emerging From Inside the Earth Hiroyuki Tanaka
What kind of particles are emerging from inside the solid earth? A. Muons
How many muons are emerging from inside the solid earth? volcano earth atmospheric muons neutrino-induced muons Small scale detector Large scale detector
Atmospheric Muons
Muon Range
Muons Emerging From Inside Volcano-Scale Objects (Atmospheric Muons)
Muography Detector Pb+SUS (160 g/cm 2 ) muon
Muographic Images eruption on Feb 2, azimuth angle (mrad) elevation angle (mrad) below above 2.52 density (g/cm 3 ) reconstructed from the muons recorded in the nuclear emulsion scintillation detector was accessed from a remote PC [Tanaka, Nakano, Niwa, Takeo et al, EPSL, 2007] [Tanaka, Uchida, Tanaka, Takeo et al, GRL, 2009]
azimuth distance (m) elevation (m) below above 1.95 density (g/cm 3 ) elevation angle (deg) azimuth angle (deg) below above 2.20 density (g/cm 3 ) elevation angle (deg) azimuth angle (deg) below above 2.60 density (g/cm 3 ) elevation angle (mrad) azimuth angle (mrad) below above 2.90 density (g/cm 3 ) [Tanaka, Shinohara et al., GRL, 2009] [Tanaka, Oshima et al., GRL, 2007] [Saracino and Carloganu, Physics Today, 2012] [Lesparre and Gibert et al., GJI, 2012]
What kind of particles are emerging from inside the solid earth? B. Neutrino- Induced Muons
Muons Emerging From Inside Planetary Scale Objects (Neutrino-Induced Muons) [Gonzalez-Garcia, Halzen, Maltoni and Tanaka, PRL, 2008]
Seismological Tomography
IceCube Detector
Muon Neutrino Survival Probability Muon neutrino survival probabilty Zenith angle (degrees) 1 TeV 10 TeV 100 TeV 1 PeV [Gonzalez-Garcia, Halzen, Maltoni and Tanaka, PRL, 2008]
IceCube Preliminary Result [Hoshina, Taketa, Tanaka and IceCube Collaboration, MNR2013, 2013]
Matter Effects and Mass Hierarchy
[Rott and IceCube Collaboration, MNR2013, 2013]
A/Z Effect On Neutrino Oscillation [Hoshina, Taketa, Tanaka and IceCube Collaboration, MNR2013, 2013]
Uncertainties Coming From Oscillation Perameters [Hoshina, Taketa, Tanaka and IceCube Collaboration, MNR2013, 2013]
Anticipated Improvements In the Near Future
Survival Probability of Electron Neutrinos [Hoshina, Taketa, Tanaka and IceCube Collaboration, MNR2013, 2013]
PINGU Detector [Rott and IceCube Collaboration, MNR2013, 2013]
Ψμ (light)-Ψμ (STD) [Hoshina, Taketa, Tanaka and IceCube Collaboration, MNR2013, 2013]
What kind of particles are emerging from inside the solid earth? C. Geo-neutrinos
Neutrinos Emerging From Inside the Solid Earth (Geo-Neutrinos) [McDonough, Dye and Learned, Physics Today, 2012]
More detail will be given in the next talk…
Conclusion Elementary particles emerging from inside the solid earth can be utilized as a completely new probe to explore the interior structure of the earth and geological targets.