DBD2014

Schedule

Time	05 Oct. 2014	06 Oct. 2014	07 Oct. 2014
08:30		Session III (08:30-09:30) : Kohala 2 Related topics to Understanding Nuetrino Propeties and Dark Matter





09:00			Workshop I (09:00-10:30) : Kona 5 Neutrinoless Double-Beta Decay Experiments and Underground Physics Challenges I





09:30		coffee break (09:30-09:45)


		Session IV (09:45-11:30) : Kohala 2 Experimental Approaches to Understanding Neutrino Properties and Dark Matter


10:00





10:30			coffee break (10:30-11:00)





11:00			Workshop II (11:00-12:30) : Kona 5 Neutrinoless Double-Beta Decay Experiments and Underground Physics Challenges I





11:30		Lunch (11:30-12:50)





12:00





12:30			Lunch (12:30-14:00)



		Session V (12:50-14:20) : Kohala 2 Dark Matter Experiments and Challenges I

13:00





13:30





14:00	Workshop III (14:00-15:30) : Kona 5 Neutrinoless Double-Beta Decay Experiments and Underground Physics Challenges II



		coffee break (14:20-14:35)

14:30
		Session VI (14:35-16:05) : Kohala 2 Dark Matter Experiments and Challenges II




15:00			Registration (15:00-16:00) Registration





15:30	coffee break (15:30-16:00)





16:00	Session I (16:00-17:30) : Kohala 2 Review of the Current Status of Neutrino Properties and Dark Matter I		Workshop IV (16:00-17:35) : Kona 5 Neutrinoless Double-Beta Decay Experiments and Underground Physics Challenges II
		break (16:05-16:30)




16:30		Social Prog. (16:30-19:30) Sunset cruise





17:00





17:30	coffee break (17:30-17:45)


	Session II (17:45-19:00) : Kohala 2 Review of the Current Status of Neutrino Properties and Dark Matter II


18:00





18:30





19:00	break (19:00-19:30)





19:30	Reception (19:30-21:30) Reception and Poster session





20:00





20:30

Time Table

October 5th

Time	Title	Speaker
Review of the Current Status of Neutrino Properties and Dark Matter I (16:00-17:30) Chair:Tadafumi Kishimoto (Osaka University)
16:00	Tonne-scale Neutrinoless Double Beta Decay Experiments (16:00-16:45) abstract/pdf	Robert McKeown (JLAB)





16:30


	Hunt for Dark Matter: direct and indirect detection and LHC update (16:45-17:30) abstract/pdf	Kathryn Zurek (LBNL)


17:00





17:30	coffee break(17:30-17:45)


Review of the Current Status of Neutrino Properties and Dark Matter II (17:45-19:00) Chair:Tadafumi Kishimoto (Osaka University)
17:45	Challenges in Understanding Neutrino Properties with Accelerator-based Experiments (17:45-18:30) abstract/pdf Abstract: Given the recent discovery of the large third neutrino mixing angle $\theta_{13}$, the determination of the neutrino mass hierarchy, the precision measurement of leptonic CP phase $\delta$ and other mixing parameters is within reach in the next-generation long-baseline accelerator neutrino experiments. In this talk, I am going to discuss the challenges that we are facing and plan in addressing these challenges.	Xin Qian (BNL)


18:00





18:30	Understanding Neutrino Properties with Reactors, Cyclotrons, and Radioactive Sources (18:30-19:00) abstract/pdf Abstract: The recent reactor and gallium anomalies have spurred interest in searches for light sterile neutrinos using short baseline, low energy $\bar\nu_e$ disappearance. In this talk, I will discuss the various experimental approaches to these searches and highlight some other interesting neutrino properties that can probed with these sources.	Matt Toups (MIT)





19:00	break(19:00-19:30)





Reception and Poster Session (19:30-21:30)
19:30	Reception and Poster Session(19:30-21:30) poster presentation List: Alpha Event Analysis of Po-214 and Po-215 of CANDLES/Wei Min Chan Alpha-gamma pulse shape discrimination in GAGG scintillator using shape indicator/Yuji Inukai Measurement of high energy background and prospects of background shielding in CANDLES/Kyohei Nakajima Background study using pulse shape analysis in CANDLES/Ohata Takaki The Energy Resolution of the CaF2 Detector/Konosuke Tetsuno





20:00





20:30





21:00

October 6th

Time	Title	Speaker
Related topics to Understanding Neutrino Propeties and Dark Matter (08:30-09:30) Chair:Brian Kurt Fujikawa (LBNL)
08:30	Present and Future of the KATRIN Experiment (08:30-09:00) abstract/pdf Abstract: The KATRIN experiment is a next generation, large-scale, single beta-decay experiment, currently under construction at the Karlsruhe Institute of Technology in Germany. The prime goal of the experiment is to probe the absolute neutrino mass scale with a sensitivity of 200 meV at 90% confidence level. The first part of the talk will focus on the recent main spectrometer commissioning measurements, with which the spectrometer's transmission and background properties were successfully investigated. The second part of the talk focuses on the possibility of extending the physics reach of KATRIN from its main goal of measuring the neutrino mass in the sub-eV range to look for contributions of possible sterile neutrinos in the eV to keV range.	Susanne Mertens (LBL)





09:00	Theta13 and 5 MeV Excess from Reactor Neutrinos (09:00-09:30) abstract/pdf Abstract: The smallest neutrino mixing angle, theta13, was measured for the first time using reactor neutrinos in 2012, which resulted in new opportunities in neutrino sector. Since then the measurement has been improved in both statistically and systematically. In this talk I will present recent results on theta13 measurements from Double Chooz, RENO and Daya Bay. Additionally I will cover RENO’s claim of an unexpected excess of neutrinos at 5 MeV observed in their data which is due to reactor neutrinos.	Seon-Hee Seo (Seoul)





09:30	coffee break(09:30-09:45)


Experimental Approaches to Understanding Neutrino Properties and Dark Matter (09:45-11:30) Chair:Izumi Ogawa (Fukui)
09:45	Low-radioactivity techniques for underground experiments (09:45-10:10) abstract/pdf Abstract: The current activities on low-radioactivity techniques in Kamioka underground laboratories will be reported. After a breif introduction of the newly approved "Grant-in-Aid for Scientific Research on Innovative Areas" on underground particle and nuclear physics researches, some research topics in this project will be explained.	Yasuo Takeuchi (Kobe U.)


10:00

	PICO-LON high purity NaI(Tl) crystal for dark matter search (10:10-10:30) abstract/pdf Abstract: A highly radio pure NaI(Tl) crystal has been developed to search for dark matter. The U and Th impurities were reduced to a few tens ppt. The chemical processing of raw material enables to reduce 210Pb concentration to the same order of DAMA/LIBRA.	Ken-Ichi FUSHIMI (Tokushima)



10:30	Directional Dark Matter Search Project with Super-High Resolution Nuclear Emulsions (10:30-10:50) abstract/pdf Abstract: For current direct dark matter search situation, directional information should be important to obtain the different systematic information. Here, we proposed the super-high resolution nuclear emulsion as a new directional dark matter detector. This is the sole solid detector with scalability in this society. This new detector was developed in the Nagoya University, and capable of detecting of submicron length tracks more than 100 nm. Now, we are promoting the R&D of detector control, readout and background studies. In here, we will report and discuss about these R&D status and future plan.	Tatsuhiro Naka (Nagoya)



	Design of a low background cryostat for a 1.3 kg low-noise, high purity germanium gamma-ray spectrometer (10:50-11:10) abstract/pdf Abstract: Also submitted to HAWAII 2014 Abstracts: Sorting 12. (E), Log Number HAW14-2014-000670. Progress on low-energy threshold HPGe ionization spectrometers has produced a 1.3 kg instrument with noise performance of less than a 100 eV full-width half-maximum pulser peak. The detector was installed in a low-background cryostat intended for a low-mass WIMP dark-matter search. Presented are the low-noise and low-background design, cryostat thermal characterization, specifications of the 1.3 kg p-type point contact germanium detector, and baseline performance of the integrated detector and cryostat.	John Orrell (PNNL)

11:00

	Calcium isotope enrichment by means of multi-channel counter current electrophoresis (MCCCE) for the study of 48Ca double beta decay (11:10-11:30) abstract/pdf Abstract: I present a new enrichment method for the massive production of enriched 48Ca and outcome from an instrument to realize the method. It is the electrophoresis with counter current. Essential part is a multi-channel migration path made on a BN plate. The instrument is compact and we obtained large enrichment in short time. I will show that the method is promising for the future mass production of 48Ca. It can be used for other purposes.	Tadafumi Kishimoto (Osaka)



11:30	lunch(11:30-12:50)





12:00





12:30



Dark Matter Experiments and Challenges I (12:50-14:20) Chair:Yoichiro Suzuki (IPMU)
12:50	Performance and Result from DarkDide-50 (12:50-13:20) abstract/pdf Abstract: DarkSide-50 (DS-50) at Gran Sasso underground laboratory, Italy, is a direct dark matter search experiment based on a TPC with liquid argon from underground sources. The DS-50 TPC, with 50 kg of active argon and a projected fiducial mass of >33 kg, is installed inside an active neutron veto based on a boron-loaded organic scintillator. The neutron veto is built inside a water cherenkov muon veto. DS-50 has been taking data since Nov 2013, collecting more than 2e7 events with atmospheric argon. This data represents an exposure to the largest background, beta decays of Ar-39, comparable to the full three-year run planned for DS-50 with underground argon. When analyzed with a threshold that would give a sensitivity in the full run of about 1e-45 cm2 at a WIMP mass of 100 GeV/c2, there is no Ar-39 background observed in WIMP expected region. The detector design and performance will be presented as well as results from the atmospheric argon run still in progress. Plans for the underground argon run and for a ton-scale detector within the same neutron veto vessel will be presented.	Masayuki Wada (Princeton Univ.)
12:50
13:00



	The LUX and LZ dark matter experiments (13:20-13:50) abstract/pdf Abstract: The Large Underground Xenon (LUX) dark matter experiment is operating 1.5 km underground at the Sanford Underground Research Facility (SURF) in Lead, South Dakota, USA. In 2013, the experiment had a WIMP search exposure of 10,091 kg-days over a period of 85.3 live-days. This first dark matter search placed the world's most stringent limits on WIMP-nucleon interaction cross-sections over a wide range of WIMP masses, and is in tension with signal hints of low-mass WIMPs from DAMA, CoGeNT and CDMS-II Si. LUX will commence a 300 day run this year that will improve the sensitivity by a factor of 5. A low-energy calibration using kinematically-constrained neutron scatters is further reducing systematic uncertainties, particularly for low WIMP masses. After LUX completes its final data run, the LZ detector will be commissioned at SURF in the same location as LUX. LZ is a next-generation 7-ton liquid xenon detector that will be about two orders of magnitude more sensitive to WIMP-nucleon interactions than LUX. LZ has been recently approved by US agencies as one of the three funded experimental programs in the second-generation (G2) downselect.	Carlos Faham (LBL)

13:30



	Status of the XENON Dark Matter Project: Recent Results from XENON100 and Prospects for Detection with XENON1T (13:50-14:20) abstract/pdf Abstract: The XENON100 experiment, installed underground at the Laboratori Nazionali del Gran Sasso in Italy, aims at detecting dark matter weakly interacting massive particles (WIMPs) scattering off nuclei within its 62 kg liquid xenon target by simultaneously measuring the scintillation and ionization signals produced by nuclear recoils. These two signals allow the three-dimensional localization of events within the target volume, yielding an inner core with a very low background. In this talk I will present recent results from XENON100 and talk about the next phase in the XENON program, XENON1T, currently under construction. XENON1T, with a sensitive volume of about 2.2 tons, has an expected sensitivity to WIMP-nucleon interactions nearly two orders of magnitude better than XENON100.	Guillaume Plante (Columbia)

14:00



	coffee break(14:20-14:35)

14:30
Dark Matter Experiments and Challenges II (14:35-16:05) Chair:Alan Poon (LBNL)
14:35	Searching for Dark Matter with SuperCDMS (14:35-15:05) abstract/pdf Abstract: SuperCDMS employs cryogenic solid state detectors to search for elastic scattering of dark matter particles from a nuclear target. By measuring both phonon and ionization signals, excellent discrimination is obtained between electron recoil backgrounds and nuclear recoil signals. The SuperCDMS Soudan experiment is currently operating at the Soudan Underground Laboratory with a 9 kg payload of germanium iZIP detectors. Results of the low-threshold and CDMSlite analyses provide sensitive constraints on low-mass dark matter cross sections. The SuperCDMS SNOLAB experiment was recently selected as a 2nd generation dark matter experiment focused on detection of low-mass dark matter. The experiment has a mixed payload of silicon and germanium detectors, with 36 iZIP detectors arranged in six towers surrounding a single tower of six CDMSlite detectors that employ Luke amplification to operate with an extremely low energy threshold. The SuperCDMS SNOLAB experiment will operate 2 km underground at SNOLAB. The cryogenic infrastructure will be capable of supporting 400 kg of cryogenic detectors, providing capacity for new cryogenic detector technologies, including those under development by the EURECA collaboration.	Richard Partridge (SLAC)




15:00
	The XMASS experiment (15:05-15:35) abstract/pdf Abstract: XMASS-I, the first phase of the XMASS project, is dedicated to a direct dark matter search using nearly 1 tons of liquid xenon as target material. We have restarted the data taking in November, 2013 after the refurbishment of the detector and been continuously taking data since then. XMASS-I has a sensitivity not only to nuclear recoils, but also to electron/gamma events with very low background environment. This unique advantage was already demonstrated in the published results by using the data before the refurbishment. The results of a search for super-WIMPs, an inelastic scattering, axions and so on clearly show the diversity of XMASS. In this talk, we summarize the physics results obtained so far and describe the status and results of the data taken after the restart of the experiment. The future prospects of the XMASS experiment will also be presented.	Byeongsu Yang (ICRR)




15:30
	Dark Matter Searches at the LHC (15:35-16:05) abstract/pdf Abstract: We present results of searches for dark matter particles in ATLAS and CMS experiments at the LHC. Searches in hadron colliders focus on final states consisting of direct production of a pair of dark matter particles, which escape direct detection. Candidate events are selected as those having an initial-state radiation of a SM particle, such as a gluon or photon. These searches result in final states consisting of a high pt jet or photon, and large missing transverse energy. If the dark matter particles' couplings to up-type and down-type quarks have opposite signs, the mono-W boson production dominates. We report on the results of these searches in pp-collisions at a center-of-mass energy of 8 TeV collected in 2012. The results are translated to bounds on the dark matter-nucleon scattering cross-section, which can be directly compared to those from the direct detection and the indirect detection experiments.	Artur Apresyan (Cal Tech)




16:00
	break(16:05-16:30)




Sunset cruise (16:30-19:30)
16:30	Sunset cruise(16:30-19:30)





17:00





17:30





18:00





18:30





19:00

October 7th

Time	Title	Speaker
Neutrinoless Double-Beta Decay Experiments and Underground Physics Challenges I (09:00-10:30) Chair:Kevin Lesko (LBNL)
09:00	Massive Neutrinos in Particle Physics (09:00-09:30) abstract/pdf Abstract: In this talk I would review what are known about the implication of massive neutrinos in particle physics, with some emphasis about what we want to know now. The subject includes neutrino mass matrix, the Majorana/Dirac mass problem and leptogenesis. I also mention implication to and constraints from cosmology.	Masataka Fukugita (IPMU)





09:30	The Majorana Neutrinoless Double-Beta Decay Program (09:30-10:00) abstract/pdf Abstract: Neutrinoless double-beta decay searches play a major role in determining the nature of neutrinos, the existence of a lepton violating process, and the effective Majorana neutrino mass. The {\sc Majorana} Collaboration is assembling an array of high purity Ge detectors to search for neutrinoless double-beta decay in 76Ge. The {\sc Majorana} {\sc Demonstrator}, containing 40 kg (30 kg enriched in 76Ge) of Ge detectors, is currently being constructed and commissioned at the Sanford Underground Research Facility in Lead, South Dakota. The initial goals are to demonstrate the required background and scalability of a Ge-based, tonne-scale experiment. The status and potential physics reach of the {\sc Majorana} {\sc Demonstrator} experiment will be presented.	Vincente Guiseppe (USC)





10:00	Upgrades for GERDA Phase II (10:00-10:30) abstract/pdf Abstract: --> invited talk on October 7th	Mark Heisel (MPI Heidelberg)





10:30	coffee break(10:30-11:00)





Neutrinoless Double-Beta Decay Experiments and Underground Physics Challenges I (11:00-12:30) Chair:Kevin Lesko (LBNL)
11:00	Results from CUORE-0, Status of CUORE (11:00-11:30) abstract/pdf Abstract: CUORE is a double beta decay experiment based on large-scale cryogenic bolometers currently under construction at the Gran Sasso National Laboratory (LNGS). Its primary aim is to observe neutrinoless double beta decay and measure Majorana neutrino masses with a projected sensitivity to probe the so-called inverted mass hierarchy. In this talk, I will review the results from CUORE-0 and discuss the physics potential and construction efforts of CUORE. I will also summarize the R&D efforts underway to extend the reach of bolometer-based detectors for future generation double-beta decay experiments.	Reina Maruyama (Yale University)





11:30	The EXO Search for Neutrinoless Double Beta Decay (11:30-12:00) abstract/pdf Abstract: The Enriched Xenon Observatory (EXO) collaboration continues to develop techniques and technology towards the search for neutrinoless double beta decay. Since 2010 the collaboration has been operating a liquid-phase time project chamber, EXO-200, at WIPP in New Mexico. Data collected with this experiment has led to several physics results and demonstrated the feasibility of the approach. Design and R{\&}D efforts are underway to develop the next-generation double beta decay experiment, nEXO, which will utilize approximately 5 tonnes of enriched xenon. In this talk, the latest results from the EXO-200 will be summarized and update on the developments towards the nEXO experiment will be provided.	Kevin Graham (Carleton)





12:00	KamLAND Zen (12:00-12:30) abstract/pdf Abstract: KamLAND-Zen is an experiment for neutrinoless double beta decay search with xenon 136 based on large liquid scintillator detector KamLAND. The first phase of the experiment was operated from Oct. 12, 2011 to June 14, 2012 and we set lower limit for the neutrino-less double beta decay half-life , T1/2(0ν)>1.9×1025yr. The combined result of KamLAND-Zen and EXO data give T1/2(0ν)>3.4×1025yr. At the first phase, we found problematic background, 110mAg. Then we purified liquid scintillator and xenon gas by distillation to remove the background. The purification campaign was started just after the first phase and ended at Dec. 2013. We present current status and latest results from KamLAND-Zen second phase, and discuss the future prospects.	Koji Ishidoshiro (Tohoku U.)





12:30	Lunch(12:30-14:00)





13:00





13:30





Neutrinoless Double-Beta Decay Experiments and Underground Physics Challenges II (14:00-15:30) Chair:Kunio Inoue (Tohoku Univ.)
14:00	SuperNEMO (14:00-14:30) abstract/pdf	masaharu nomachi (Osaka Univ.)





14:30	Status of the NEXT experiment and future perspectives for HPXe-based DBD searches (14:30-15:00) abstract/pdf Abstract: Neutrinos may be Majorana particles. If so, neutrinoless double beta decay processes could be observed by the next-generation bb0nu experiments. This talk will present one of the most promising ideas in the field, the use of a High Pressure Gas Xenon TPC (HPGXe) with electroluminescence gain and optical readout. A 100 kg incarnation of such a device, the NEXT-100 experiment, will start operations at the Canfranc Underground Lab in Spain in 2015. The technology can be extrapolated to 1 ton, and thus lead the exploration of the inverse hierarchy in Majorana landscape.	Andrew Laing (IFIC Spain)





15:00	CANDLES project for the study of neutrino-less double beta decay of 48Ca (15:00-15:30) abstract/pdf Abstract: There is, presently, strong evidence that neutrinos undergo flavor oscillations,and hence must have finite masses. Neutrino-less double beta (0νββ) decay measurement offers a realistic opportunity to establish the Majorana nature of neutrinos and gives the absolute scale of the effective neutrino mass. CANDLES is the project to search for 0νββ decay of 48Ca. A distinctive characteristic of 48Ca is the highest Q value (4.3 MeV) among 0νββ isotopes. Therefore it enables us to measure 0νββ decay signals in background free contribution. The CANDLES system consists of undoped CaF2 scintillators (CaF2),liquid scintillator (LS), and large photomultiplier tubes (PMTs). A large number of CaF2 crystals in the form of 10 cm cubes are immersed in the LS. Scintillating CaF2 crystals work as an active source detector for 0νββ decay of 48Ca, together with LS as a multi-purpose detector component to both reject backgrounds and to propagate scintillation photons. PMTs are placed around the LS vessel to detect photons from both scintillators. The simple design concept of CANDLES enables us to increase the 48Ca source amount. 48Ca enrichment is also effective for the high sensitive measurement, because natural abundance of 48Ca is very low (0.19\%). We have studied 48Ca enrichment and succeeded in obtaining enriched 48Ca although it is a small amount. Now we have developed the CANDLES III system, which contained with 300kg CaF2 crystals without enrichment, at the Kamioka underground laboratory. New light collection system was installed in 2012, and accordingly photo-coverage has been enlarged by about 80\%. Further improvement will be expected in 2014 by installing a detector cooling system in order to increase light emission from CaF2 crystals. The detail of the latest CANDLES III (U.G.) system and its performance will be presented. Recently, we found that gamma rays from neutron captures on materials surrounding detector could be dominant background. These background estimation and prospects of backgrounds shielding will be also discussed.	Sei Yoshida (Osaka Univ.)





15:30	coffee break(15:30-16:00)





Neutrinoless Double-Beta Decay Experiments and Underground Physics Challenges II (16:00-17:35) Chair:Kunio Inoue (Tohoku Univ.)
16:00	LUCIFER: scintillating bolometer for neutrinoless double-beta decay searches (16:00-16:30) abstract/pdf Abstract: In the field of fundamental particle physics, the nature of the neutrino, if it is a Dirac or a Majorana particle, plays a crucial role not only in neutrino physics, but also in the overall framework of fundamental particle interactions and in cosmology. Neutrinoless double-beta decay (0vDBD) is the key tool for the investigation of this nature. Experimental techniques based on the calorimetric approach with cryogenic particle detectors have demonstrated suitability for the investigation of rare nuclear processes, profiting from excellent energy resolution and scalability to large masses. Unfortunately, the most relevant issue is related to background suppression. In fact, bolometers being fully-active detectors struggle to reach extremely low background level. The LUCIFER project aims to deploy the first array of enriched scintillating bolometers. Thanks to the double read-out - heat and scintillation light produced by scintillating bolometers - a highly efficient background identification and rejection is guaranteed, leading to a background-free experiment. We show the potential of such technology in ZnMoO4 and ZnSe prototypes. We describe the current status of the project, including results of the recent R&D activity.	Luca Pattavina (LNGS)





16:30	The SNO+ Experiment, Overview and status (16:30-17:00) abstract/pdf Abstract: The primary aim of SNO+ is to search for neutrinoless double beta decay of 130Te. 130Te will be loaded into 780 tonnes of liquid scintillator placed into the existing SNO detector. The detector depth and its passive shielding combined with purification and background tagging are expected to leave solar Boron-8 and 130Te double beta decay as the dominant backgrounds. With these backgrounds we predict a sensitivity near the top of the inverted neutrino mass hierarchy at 0.3% Te loading. Work is in progress to increase the loading to the several percent level thereby improving the sensitivity.	Philip Jones (Queen Mary University of London)





17:00	The Physics of Underground Accelerators (17:00-17:30) abstract/pdf Abstract: Underground physics plays an increasingly important role in the measurement of cross section for low energy nuclear reactions. The talk will give an overview of the physics issues that can be addressed with low energy accelerators located in a underground environment.	Wiescher Michael (Notre Dame)





17:30	Closing (17:30-17:35) abstract/pdf	Kevin Lesko (LBNL)

International Workshop on "Double Beta Decay and Underground Science"
DBD2014

October 5th - 7th, 2014
Hawaii Island, United States

Schedule

Time Table

October 5th

October 6th

October 7th

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International Workshop on "Double Beta Decay and Underground Science"DBD2014

October 5th - 7th, 2014 Hawaii Island, United States

Schedule

Time Table

October 5th

October 6th

October 7th

Sci. Prog.

International Workshop on "Double Beta Decay and Underground Science"
DBD2014

October 5th - 7th, 2014
Hawaii Island, United States