Geonu

Post date: Nov 20, 2014 5:39:30 AM

Geoneutrino Measurements Workshop Nov 26 - 27, 2014

Discussion Topics

• 1. Overview Geophysics / Geoneutrinos in Korea, Japan, USA

  2. Composition of the Earth, open questions

  3. RENO-50 Status and Plans

  4. Underground Physics in Korea

  5. Geophysics with RENO-50/JUNO, KamLAND, Hyper-K, PINGU

  6. Potential of a 20 kTon ocean going detector

  7. Potential for geoneutrino measurements in Korea

  8. ...

Participants

• • Bill Mc Donough (University of Maryland, USA)

  • Seongchan Park (Sungkyunkwan University, Korea)

  • Carsten Rott (Sungkyunkwan University, Korea)

  • Hyunkwan Seo (Seoul National University, Korea)

  • Seon-Hee Seo (Seoul National University, Korea)

  • Akimichi Taketa (University of Tokyo, ERI, Japan)

  • Hiroko Watanabe (Tohoku University, Japan)

Tentative Agenda

• Wednesday Nov 26, 2014

  • • Carsten Rott (SKKU) - 13:30 - 14:30 Neutrino Physics in the Ice (PINGU, MICA)

    • Hiroko Watanabe (Tohoku) - 16:30 - 17:30 SKKU Physics Colloquium "Neutrino Physics with KamLAND"

      • The Kamioka Liquid-scintillator Anti-Neutrino Detector (KamLAND) is located in a rock cavern in

        • the Kamioka mine, 1,000 m below the summit of Mt. Ikenoyama in Japan. The 2,700 meter water

        • equivalent overburden reduces the cosmic ray flux by a factor of roughly 10^-5 compared with the surface flax.

        • KamLAND is marked by the ability to detect low-energy antineutrino signals at 1,000 tons of ultra pure liquid

        • scintillator through the inverse beta reaction. We demonstrated the oscillation nature of neutrino flavor

        • transformation by observing electron antineutrinos from nuclear reactors and neutrino properties have been explored precisely.

        • Since neutrino interact with other particles only via weak interaction, they have extremely low reaction probabilities.

        • Such elusive property of neutrinos provides us with the ability to investigate optically invisible deep interior of

        • the astronomical objects, such as the Earth. Neutrino measurement evolved understanding of neutrino properties to

        • utilization of neutrino as a "probe".

        • In this talk, I will present overview of neutrino physics with KamLAND, including reactor neutrino, geo-neutrino

        • and extraterrestrial neutrino measurement results.

• • Dinner 18:30

• Thursday Nov 27, 2014

• • Morning Session (Room No. is 330118 (chemistry building ground floor))

    • • 10:00 Akimichi Taketa "Neutrino Spectrometry"

      • 11:00 Discussion (Neutrino Tomography)

  • Afternoon Session (Seminar Room 2nd floor library)

    • • 13:00 Bill Mc Donough (UMD) -"Geoneutrinos and heat production in the Earth" (Seminar)

• • • Geo-neutrinos, produced in beta decays of naturally occurring radioactive isotopes in the Earth, are a unique direct probe of our planets interior. The kTon-scale, underground, liquid scintillation detectors in Japan and Italy, which measure the flux of these electron anti-neutrinos, reveal that radiogenic heat from the decay of Th and U (only detectable signal) contributes between 20% and 50% of the Earth's present-day power (46+/-3 TW). These particle physics experiments are now establishing limits on acceptable compositional models for the Earth and defining the amount of nuclear power inside the Earth available to drive plate tectonics, mantle convection, and the geodynamo.

      • 14:00 Discussion (including RENO-50)

• Dinner 18:30

Location

Sungkyunkwan University Campus Suwon