Heeger Group

UW Physics Department | UW Madison
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Current Research Projects

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Daya Bay Reactor Neutrino Experiment

The Daya Bay reactor neutrino experiment is a US-China-Russia collaboration to search for and measure the yet unknown neutrino mixing angle θ13. The experiment will be located at the Daya Bay nuclear power plant near Hong Kong, China. The collaboration is currently performing R&D and simulations for the experiment. Construction will start in 2007 and first data taking is expected for 2009.

Recent articles about the Daya Bay experiment:
"Catching Neutrinos in China", Symmery Oct/Nov 06
"Reactor experiments seek missing neutrino mixing angle",
Physics Today Nov 06
"China-US to launch joint neutrino experiment ",
Peoples Daily June 06

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Kamioka Liquid Scintillator Antineutrino Detector - KamLAND

The Kamioka Liquid Scntillator Antineutrino Detector (KamLAND) is an ongoing reactor neutrino experiment in Japan. KamLAND made the first observation of reactor antineutrino disappearance in 2003 and has made the most precise measurement of Δm^2_12 (one of the neutrino mixing parameters) to date. Our group is responsible for the operation of an advanced 4π calibration system. This system was commissioned in summer 2006 and is currently taking data. The KamLAND collaboration is also preparing for the first direct observation of 7Be solar neutrinos. The low-energy phase of KamLAND is expected to start in Spring 2007.

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Cryogenic Underground Observatory for Rare Events - CUORE

CUORE is a proposed tightly packed array of 988 TeO2 bolometers to search for neutrinoless double beta decay and to measure the absolute mass of neutrino. Neutrinoless double beta decay is a yet unobserved process. It can only occur if neutrinos are their own antiparticles, i.e. if they are Majorana particles. CUORICINO, a prototype to CUORE, is currently running in Gran Sasso National Laboratory in Italy and the largest double beta decay experiment in operation.

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