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Anselmo Cervera Villanueva (IFIC, Valencia)19/07/2018 08:30
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Xuantong Zhang (IHEP, CAS)19/07/2018 09:00
The Jiangmen Underground Neutrino Observatory (JUNO) is a multiple-purpose neutrino experiment with a 20 kilotons liquid scintillator (LS) detector. It is built at a depth of 700 meters from two nuclear power plants with a ~53 kilometers baseline. The main goal of JUNO is achieving an unprecedented 3% energy resolution at 1 MeV to determine the neutrino mass hierarchy in 6 years with a 3-4...
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Takahiko Hachiya (Tohoku Univ.)19/07/2018 09:30
KamLAND-Zen searches for neutrinoless double beta
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decay of Xe-136 using Xe-loaded liquid scintillator(XeLS). The
experiment holds XeLS in the nylon-film vessel(inner balloon, IB) at the center of KamLAND, low-background 1-kton liquid
scintillator detector. First stage of the experiment, KamLAND-Zen 400 (Zen 400), has run with 380-kg of Xe until 2015 and
its result set the most stringent... -
Dr Hiraki Takahiro (Oyama Univ.)19/07/2018 10:25
Although recent oscillation experiments have advanced neutrino physics impressively by discovering finite neutrino masses along with their mixing, there still exist important uncovered neutrino properties such as absolute neutrino massesand the nature of neutrino masses, Majorana/Dirac distinction.The SPAN (SPectroscopy with Atomic Neutrino) group at Okayama University aims to uncover these...
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Kazuhiro Nakamura (Kyoto University)19/07/2018 10:55
The neutrinoless double beta decay, if it happens, is a very rare phenomenon. A detector with mass scalability up to ton scale and strong background rejection power is necessary to search for it.
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We are aiming to achieve these requirements with a high-pressure xenon gas time projection chamber. Our detector, AXEL, has high energy resolution and tracking pattern detection, which are important... -
Boris Kayser (Fermilab)19/07/2018 11:25
We explain why determining whether neutrinos are Majorana particles, identical to their antiparticles, or Dirac particles, distinct from their antiparticles, is so challenging. We then discuss ways through which we can attempt to make this determination, including the primary approach, which is the search for neutrinoless double beta decay, and several alternative approaches.
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Osamu Sato (Nagoya Univ. )19/07/2018 13:30
The knowledge about tau neutrino features is still rather poor comparing with muon or electron neutrino. One of the basic features, the tau neutrino cross-section, was only measured by DONUT in 2008 with large systematical error of 50% and also large statistical error of 33%.
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In the future experiments, a large number of tau neutrino events will be collected for precise measurement on tau... -
Yuji Takeuchi (Univ. of Tsukuba)19/07/2018 14:00
We present a status of COBAND project for an experimental search for COsmic BAckground Neutrino Decay. The cosmic background neutrino (C$\nu$B) is predicted in the standard cosmology, while the heaviest neutrino is expected to be able to decay to lighter neutrinos with photons in the FIR region. Neither the C$\nu$B nor the neutrino decay is, however, experimentally established yet. We, thus,...
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Haruki Nishino (KEK)19/07/2018 14:30
Since the first detection of Cosmic Microwave Background (CMB) in 1964,
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the observations of CMB have been playing a big role to understand the history of the Universe and to establish the standard model of cosmology. The next frontier of the CMB cosmology is the polarization of CMB. In recent years, CMB experiments have been targetting to measure the polarization component of the CMB, in... -
Tsuyoshi Nakaya19/07/2018 15:20
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