The international collaboration of JUNO was established in 2014, the civil construction started in 2015 and the R&D of the detectors is ongoing. The significant increase in luminosity along with the limitations of the current Tracker require a complete renewal of the CMS Outer Tracker, the Tracker Phase-2 Upgrade, during the LS3. Therefore, with a QCD sum rules analysis, it is not possible to conclude that χc1(4140) has a dominant molecular or diquark–antidiquark content. Specifically, two indicators, namely, the critical loading multiplier and the rotation angle, are proposed to evaluate the stability against rotation of the acrylic spherical shell in linear and nonlinear stability analyses, respectively. The 20 inch prototypes followed in 2014 and their performances were improved a lot in 2015. Thin planar pixel modules are promising candidates to instrument the new pixel system, thanks to the reduced contribution to the material budget and their high charge collection efficiency after irradiation. By continuing you agree to the use of cookies. The underground laboratory will be located at Jiangmen, in South China, 53 km away from the Taishan and Yangjiang reactor complexes. JUNO Collaboration Established (2014.7) 2014/9/9 NOW2014 2 Asia (25) Beijing Normal U. CAGS, CIAE DGUT Yangjiang NPP, 17.4 GW th Taishan NPP, 18.4 GW th 53 km 53 km Daya Bay NPP 700 m overburden q 12 osc. It has strong physics potential, while it contains significant technical challenges. The production rate of Ξb− baryons detected in the decay Ξb−→J/ψΛK− is measured relative to that of Λb0 baryons using the decay Λb0→J/ψΛ. Development of high-efficiency separation materials with specific recognition sites has become an urgent and important task. Jiangmen Underground Neutrino Observatory. Results on cluster shapes, charge collection- and hit efficiency will be shown. A new inverted module concept is presented, which has advantages with respect to the baseline concept. The Jiangmen Underground Neutrino Observatory Liangjian Wen JUNO Neutrino Astronomy & Astrophysics Workshop, Nanjing University, Apr.17-18, 2016. JUNO (Jiangmen Underground Neutrino Observatory) is a 20 kton multipurpose neutrino detector under construction in China and it will be completed in 2021. It can also detect the neutrinos from astrophysics and geophysics sources. Based on it, the synergy processes of pDA and SiO2 could be achieved on surface of porous membranes. deep underground and consists of a 20 kiloton liquid scintillator contained in a 34.5 m-diameter acrylic ball, instrumented by more than 17,000 20-in. With its 20 kt target mass, it aims to achieve an unprecedented 3% energy resolution at 1 MeV. The outlook for future thin planar pixel sensor productions will be discussed, with a focus on thin sensors with a thickness of 100 and 150 μm and a novel design with the optimized biasing structure and small pixel cells (50×50 and 25×100 μm2). After three years of R&D, a number of 8 inch prototypes were produced in 2013. An efficient scheme combining design variable discretization and exhaustive method is adopted to identify the optimal variable values at which the acrylic spherical shell has good stability against rotation. Radiogenic heating is a key component of the energy balance and thermal evolution of the Earth. As to the synthesis procedure of ICCIMs-D/S, the pDA-modified layers were uniformly loaded onto substrate membranes by developing an elevated phase transformation method. The Jiangmen Underground Neutrino Observatory (JUNO) is a large and high precision liquid scintillator detector under construction in the south of China. No code available yet. China's next-generation neutrino detector-the Jiangmen Underground Neutrino Observatory, or JUNO-is being built 700 meters underground in Jiangmen, Guangdong. JUNO (Jiangmen Underground Neutrino Observatory), collaboration internationale à laquelle participe le Laboratoire Leprince-Ringuet de l'X, conçoit un détecteur dont l’objectif est de mesurer la masse de particules appelées neutrinos. Renu Swarup Secretary, Department of Biotechnology Ministry of Science & Technology Government of India Delhi, India. International audienceThe Jiangmen Underground Neutrino Observatory (JUNO) is an experiment under construction in China with the primary goal of determining the neutrino mass hierarchy (MH) with reactor anti-neutrinos. From 2017 to 2019, all the 20-inch PMTs are produced and tested individually in NNVT. This contribution presents a new sensor prototype with n-pixels in p-bulk material in planar technology for the PS module. Successively, with the usage of a developed pin-power reconstruction technique capable to account for the innovative fuel assembly design, sub-channel investigations of the individual fuel assemblies have been performed evaluating pin-wise clad temperatures. It is the home of the largest reactor complex in the world with 2.9X6 GW in the Yangjiang NPP and 4.6X4 GW in the Taishan NPP, which totals 35.8 GW. After the discovery of a non-zero value for the mixing angle θ13 by the latest reactor [1], [2], [3] experiments, the neutrino mass hierarchy and the lepton CP violation phase are the remaining oscillation parameters to be measured in the future. The experimental hall, spanning more than 50 meters, is under a granite mountain of over 700 m overburden. Electrical characterization of sensors and SEM-images are presented. Because the relative size of two fast oscillation components is different (|Δm312|>|Δm322| for normal hierarchy or |Δm312|<|Δm322| for inverted hierarchy), the interference between the two oscillation frequencies in the reactor antineutrino energy spectrum allows to discriminate the two cases for MH (see oscillation probability below). To reach an unprecedented 3% energy resolution (at 1 MeV), the PMTs need a quantum efficiency of more than 30% and the attenuation length of the liquid has to be better than 20 m (at 430 nm). Jiangmen Underground Neutrino Observatory Oct 19, 2016 Located some 700m underground in Jiangmen, south China, about 150 km west of Hong Kong, is a lab that China hopes will propel it to the frontier of neutrino physics. International audienceThe Jiangmen Underground Neutrino Observatory ( Juno ) is a large and high precision liquid scintillator detector under construction in the south of China. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 845, 2017, pp. 2020, Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019, International Journal of Steel Structures, 2019, IEEE Transactions on Nuclear Science, Journal of the Taiwan Institute of Chemical Engineers, Volume 115, 2020, pp. The Jiangmen Underground Neutrino Observatory aims to determine “neutrino mass hierarchy and precisely measure oscillation parameters by … Milestones in sensor R&D for the 2S modules as well as first characterization results are presented. This High Luminosity LHC scenario, HL-LHC, will require a preparation program of the LHC detectors known as Phase-2 upgrade. Oct 19, 2016. New types of modules called PS and 2S modules are foreseen offering enhanced functionality and radiation hardness. The relevant water density reduction associated with the heat-up, together with the multi-pass core design, results in a pronounced coupling between neutronic and thermal-hydraulic analyses, which takes into account the strong natural influence of the in-core distribution of power generation and water properties. The measurement of the antineutrino spectrum will also lead to the precise determination of three out of the six. M. Aartsen, et al., (IceCube PINGU Collaboration) (2014).... T. Adam, et al., (JUNO Collaboration) (2015).... Operating performance of the gamma-ray Cherenkov telescope: An end-to-end Schwarzschild–Couder telescope prototype for the Cherenkov Telescope Array, Construction and test of new precision drift-tube chambers for the ATLAS muon spectrometer, Thin n-in-p planar pixel modules for the ATLAS upgrade at HL-LHC, Status of sensor qualification for the PS module with on-chip, Exploring the quality of latest sensor prototypes for the CMS Tracker Phase II Upgrade, Upgrades of the CMS Outer Tracker for HL-LHC, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, https://doi.org/10.1016/j.nima.2016.05.111. 3) consists of a 34.5 m-diameter acrylic sphere filled with a purified liquid scintillator ensuring an attenuation length of more than 20 m. Linear alkylbenzene (LAB), a straight alkyl chain of 10–13 carbons attached to a benzene ring, is used as the detection medium due to its excellent transparency, high flash point, low chemical reactivity, and good light yield. This system is capable of deploying radioactive sources into different positions of the detector in a vertical plane with a few-cm position accuracy. The current CMS Outer Tracker, already running close to its design limits, will not be able to survive HL-LHC radiation conditions and CMS will need a completely new device, in order to fully exploit the highly demanding operating conditions and the delivered luminosity. OUTLINE •Physics Motivation •The JUNO Collaboration •The JUNO Experiment •Extended Physics Program 16th May 2019 page 2. Using beam tests, the gain in hit efficiency is investigated as a function of the received irradiation fluence. The detector construction and assembly is planned to start by the end of 2017 and. The obtained results represent a new quality in core analyses, which takes into full consideration the coupling between neutronics and thermal-hydraulics as well as the spatial effects of the fuel assembly heterogeneity in determining the local pin-power and the associated maximum clad temperature. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. In addition, an improved measurement of B(Λ+c→Σ−π+π+) is determined as (1.81±0.17(stat.)±0.09(syst.))%. Its physics goal is to determine the neutrino mass ordering (MO) via the To determine the neutrino mass ordering, a gigantic liquid scintillator detec-tor is under construction near Jiangmen in the southern Chine at about 50 km from two nuclear power plants: the Jiangmen Underground Neutrino Observatory (JUNO). This estimate depends on the quantity and distribution of heat-producing elements in various Earth reservoirs. The groundbreaking ceremony for the Jiangmen Underground Neutrino Observatory happened on January 10. Notably, the satisfactory rebinding selectivity (α>4.0) and permselectivity (β>4.0) with outstanding regeneration performance (only 5.11% decrease after ten regeneration cycles) indicated the superior selectivity and stability of the as-obtained ICCIMs-D/S. The experiment will also be able to observe neutrinos from terrestrial and extra-terrestrial sources. Higher granularity, 140 collisions per bunch crossing and existing bandwidth limitations require a reduction of the amount of data at module level. Jiangmen City of Guangdong Province is the best site for for Jiangmen Underground Neutrino Observatory. • Earth magnetic field (EMF) shielding system – Use double coils system for EMF shielding。 – The theoretical calculation and prototype data are consist with each other. The stability against rotation of this super-deep underground spherical shell structure needs to be fully investigated. Le site retenu se situe à Kaiping, dans la province du … A cable loop source calibration system is developed for the Jiangmen Underground Neutrino Observatory, a 20 kton spherical liquid scintillator neutrino experiment. 244-245, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 845, 2017, pp. MOTIVATION: NEUTRINO MASS HIERARCHY The neutrino mass hierarchy (MH) … The Jiangmen Underground Neutrino Observatory (JUNO) is a medium baseline reactor neutrino experiment under construction at Kaiping, Jiangmen in Southern China. The Jiangmen Underground Neutrino Observatory (JUNO) is a multipurpose neutrino-oscillation experiment designed to determine the neutrino mass hierarchy as a primary physics goal, by detecting reactor antineutrinos from two power plants at 53-km distance. The ICCIMs-D/S with Col-imprinted recognition sites were finally synthesized by the photo-initiated “mercapto-alkenes click chemistry” method using methacrylic acid as functional monomers. The preparation strategy and ICCIMs-D/S developed in this work is expected to provide a feasible idea for selective separation of Col from wastewater. STATUS OF THE JIANGMEN UNDERGROUND NEUTRINO OBSERVATORY Michaela Schever On behalf of the JUNO Collaboration 16th May 2019 | New Trends in High Energy Physics 2019, Odessa. This paper will focus on the mass production and batch test result of 6000 pieces of MCP-PMT prototypes for JUNO. JUNO is planning to start data taking in 2020. The Jiangmen Underground Neutrino Observatory, or Juno, aims to measure the relative weight of neutrinos, sub-atomic particles that until less than two … With its 20 kt target mass, it aims to achieve an unprecedented 3% energy resolution at 1 MeV. Les tests de validation des cartes électroniques pour le Top Tracker de l’expérience JUNO (Jiangmen Underground Neutrino Observatory), ont révélé une excellente surprise: près de 97 % des cartes ont passé les tests avec succès et sont donc prêtes au départ pour la Chine où l’expérience est basée. With its 20 kt target mass, it aims to achieve an unprecedented 3% energy resolution at 1 MeV. The CMS collaboration has undertaken R&D effort to develop new planar sensors for the pixel-strip (PS) module, which has to withstand 1×1015 cm−2 1 MeV neutron equivalent fluence in the innermost layer of the tracker. The detector will benefit from a rock overburden of the order of 700 meters in order to reduce the cosmic muon-induced backgrounds. The Jiangmen Underground Neutrino Observatory (JUNO) is a multipurpose neutrino-oscillation experiment designed to determine the neutrino mass hierarchy as a primary physics goal, by detecting reactor antineutrinos from two power plants at 53-km distance. The detector will be located near the the city of Jiangmen, 53 km away from two nuclear power plants that will provide the neutrino flux for the main goal of the observatory. The liquid scintillator also contains of 3 g/L 2,5-diphenyloxazole (PPO) as the primary fluor and, JUNO is designed to determine the neutrino MH (3 to 4 σ over six years data taking) and measure three of the oscillation parameters to better than 1% using reactor antineutrino oscillations. This means construction on Asia’s two biggest neutrino experiments will have started in the span of a week, after the India-based Neutrino Observatory was given the … The module is composed of a strip sensor and a macro pixel sensor with 100 μm×1.5 mm pixel size. These dimensions are foreseen for the new ATLAS read-out chip in 65 nm CMOS technology and the fine segmentation will represent a challenge for the tracking in the forward region of the pixel system at HL-LHC. The High Performance Light Water Reactor (HPLWR) is a thermal spectrum nuclear reactor cooled and moderated with light water operated at supercritical pressure. PMTs ensuring a 77% photocatode coverage. 164-168, The Jiangmen underground neutrino observatory experiment, significance level the neutrinos mass hierarchy with six years of running. Small MCP units replace the bulky Dynode chain in the large PMTs. In this work, we chose three molecular and three diquark–antidiquark currents with the quark content cc¯ss¯ and JPC=0++,1++,2++, and estimated the masses and the meson coupling constants of the ground states coupling to these currents in the framework of QCD sum rules. It aims to determine the neutrino mass hierarchy and perform precision measurements of … JUNO has been approved by Chinese Academy of Sciences in 2013, and an international collaboration was established in 2014. China's next-generation neutrino detector-the Jiangmen Underground Neutrino Observatory, or JUNO-is being built 700 meters underground in Jiangmen, Guangdong. The observation of the decay Ξb−→J/ψΛK− is reported, using a data sample corresponding to an integrated luminosity of 3fb−1, collected by the LHCb detector in pp collisions at centre-of-mass energies of 7 and 8TeV. the Jiangmen Underground Neutrino Observatory (JUNO) Lino Miramonti (on behalf of JUNO Collaboration) Department of Physics, Milano University and INFN, Sezione di Milano, via Celoria 16, Milano I-20133, Italy lino.miramonti@mi.infn.it Received 26 February 2020 Accepted 26 February 2020 Published 13 March 2020 One of the remaining undetermined fundamental aspects in neutrino … This type of PMT has large sensitive area, high quantum efficiency (QE), and large peak-to-valley (P/V) ratio for good single photoelectron detection. Cloxacillin (Col) was selected as the template resulting from the potential threat to environment and human health. 106-109, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 845, 2017, pp. ATLAS muon detector upgrades aim for increased acceptance for muon triggering and precision tracking and for improved rate capability of the muon chambers in the high-background regions of the detector with increasing LHC luminosity. Results of few group neutronic analyses might be less reliable in case of HPLWR 3-pass core than for conventional LWRs because of considerable changes of the neutron spectrum within the core, hence 40 groups transport theory has been preferred to the usual 2 groups diffusion theory. Existing experiments in neutrino oscillation, such as T2K in Japan and NOvA at Fermilab, benefit from this measurement, he noted, as will Jiangmen Underground Neutrino Observatory (JUNO), a next-generation experiment that will start taking data soon in China, the Long Baseline Neutrino Facility/Deep Underground Neutrino Experiment (LBNF/DUNE) project under construction at Fermilab, … The Jiangmen Underground Neutrino Observatory (JUNO) is a multipurpose neutrino-oscillation experiment designed to determine the neutrino mass hierarchy as a primary physics goal, by detecting reactor antineutrinos from two power plants at 53-km distance. The Jiangmen Underground Neutrino Observatory Marco GRASSIy IHEP, Chinese Academy of Sciences, Beijing, P.R.China E-mail: mgrassi@ihep.ac.cn on behalf of the JUNO Collaboration The Jiangmen Underground Neutrino Observatory (JUNO) is a large and high precision liquid scintillator detector under construction in the south of China. JUNO (Jiangmen Underground Neutrino Observatory) is a 20 kton multipurpose neutrino detector under construction in China and it will be completed in 2021. The Jiangmen Underground Neutrino Observatory (JUNO) is a 20 kton multi-purpose liquid scintillator (LS) detector, located 53 km from the Yangjiang and Taishan nuclear power plants in south China [1]. 84-88, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Volume 845, 2017, pp. Jiangmen Underground Neutrino Observatory (JUNO) Xiaonan Li Institute of High Energy Physics 1 Windows on the Universe August 11-17, 2013, Guy Nhon, Vietnam . JUNO is planning to start taking data around 2020. The Jiangmen Underground Neutrino Observatory (JUNO) is a multipurpose neutrino-oscillation experi-ment whose major goals are determining the neutrino mass hierarchy and precisely measuring three of the neutrino oscillation parameters. Get the latest machine learning methods with code. More than 300 scientists and officials from China and other countries attended the ceremony and witnessed this historical moment. The detector is placed at 1800-m.w.e. On January 10, the groundbreaking ceremony for the Jiangmen Underground Neutrino Observatory (JUNO) was held in Jiangmen City, Guangdong Province, China. AC-coupled silicon strip sensors of two vendors, produced on 6-inch as well as on 8-inch wafers, are considered which both are in n-on-p technology. The construction of new sMDT chambers for installation in the 2016/17 winter shutdown of the LHC and the design of sMDT chambers in combination with new RPC trigger chambers for replacement of the inner layer of the barrel muon spectrometer are in progress. Jiangmen Underground Neutrino Observatory (JUNO) Kaiping, China. Then, parametric analysis is performed to assess the sensitivity of the stability against rotation to four parameters of interest (i.e., rod outer end constraints, liquid level difference, disc spring stiffness, and rod deviation). The methods proposed for the determination of the neutrino mass hierarchy (MH) include the matter-induced oscillations in the long-baseline accelerator [4], [5] and atmospheric [6], [7] neutrino experiments, and the vacuum oscillations in the medium baseline reactor antineutrino experiments [8], [9], thanks to the relatively large value measured of θ13. We use cookies to help provide and enhance our service and tailor content and ads. It is located 53 km away from both Yangjiang and Taishan Nuclear Power Plants in Guangdong, China. More from South … Located some 700m underground in Jiangmen, south China, about 150 km west of Hong Kong, is a lab that China hopes will propel it to the Next big thing The Jiangmen Underground Neutrino Observatory is the successor to the Daya Bay Reactor Neutrino Experiment (pictured) that made one of the best measurements yet of the neutrino mixing angle θ 13 . These were obtained in November 2015 in Meudon, France. The GCT is described in this contribution and the first images of Cherenkov showers obtained using the telescope and its camera are presented. The JUNO detector system consists of a central detector, an active veto system and a calibration system. Neutrino Oscillation Workshop. The Jiangmen Underground Neutrino Observatory (JUNO) is a large and high precision liquid scintillator detector under construction in the south of China. maximum PRD 88, 013008 (2013) JUNO Experiment Rich Physics Reactor neutrinos: Mass hierarchy & Precision measurement of mixing … The results indicate that the proposed method is efficient and effective for optimization of stability against rotation of such super-deep underground spherical shell structure. JUNO Experiment (PDF). New designs of the pixel cells, with an optimized biasing structure, have been implemented in n-in-p planar pixel productions with sensor thicknesses of 270 μm. Taking in account the performance and cost of PMT and the radioactivity of PMT glass, JUNO ordered 15000 20-inch MCP-PMT from North Night Vision of Technology CO.(NNVT) in Dec.2015. As shown in Figure 1, it is located at 700-meter deep underground … Sense wire positioning accuracies of 5 μm have been achieved in serial production for large-size chambers comprising several hundred drift tubes. The Jiangmen Underground Neutrino Observatory (JUNO) is a medium baseline reactor neutrino experiment under construction at Kaiping, Jiangmen in Southern China. The Jiangmen Underground Neutrino Observatory (JUNO) is a multipurpose neutrino experiment designed to determine neutrino mass hierarchy and precisely measure oscillation parametersby detecting reactor neutrinos from the Yangjiang and Taishan Nuclear Power Plants, observe supernova neutrinos, study the atmospheric, solar neutrinos and geo-neutrinos, and perform exotic searches, with … The detector is placed at 1800-m.w.e. The Jiangmen Underground Neutrino Observatory (JUNO) is a medium baseline reactor neutrino experiment under construction at Kaiping, Jiangmen in Southern China. We report the first observation of the decay Λc+→Σ−π+π+π0, based on data obtained in e+e− annihilations with an integrated luminosity of 567 pb−1 at s=4.6GeV. 388-393, Nuclear and Particle Physics Proceedings, Volumes 265–266, 2015, pp. Of particular geological importance is radiogenic heating in the mantle. Yangjiang NPP, 17.4 GW th Taishan NPP, 18.4 GW th 53 km 53 km Daya Bay NPP 700 m overburden q 12 osc. The detector is placed at 1800-m.w.e. The array will feature different sizes of telescopes allowing it to cover a wide gamma-ray energy band from about 20 GeV to above 100 TeV. Browse our catalogue of tasks and access state-of-the-art solutions. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. The Jiangmen Underground Neutrino Observatory (JUNO) is a multipurpose neutrino-oscillation experiment designed to determine the neutrino mass hierarchy and to precisely measure oscillation parameters by detecting reactor antineutrinos, observe supernova neutrinos, study the atmospheric, solar neutrinos and geo-neutrinos, and perform exotic searches, with a 20 kiloton liquid scintillator detector of unprecedented 3% energy resolution (at 1 MeV) at 700-meter deep underground and to have other rich scientific possibilities. The design and the performance of the prototype are reported in this paper. It aims to determine the neutrino mass hierarchy and perform precision measurements of … This precision on the energy is a key point to determine at the 3–4 σ significance level the neutrinos mass hierarchy with six years of running. With its 20 kt target mass, it aims to achieve an unprecedented 3% energy resolution at 1 MeV. European members of JUNO held a meeting at the … Mouïn Hamzé … Copyright © 2020 Elsevier B.V. or its licensors or contributors. The MCP-PMT collaboration group finished to build the mass production line in Nanjing, and finished the batch test system in the same place in 2016. In this study, an effective and practical method consisting of parametric analysis and optimization procedure is proposed to improve the stability against rotation. The experimental site will be located 53 km from both Yangjiang and Taishan NPP. The Cherenkov Telescope Array ( CTA ) consortium aims to build the ground-based. Amount of data at 40 MHz to the L1-trigger proposed to improve the stability against rotation this... Innovative reactor concept, which has advantages with respect to the use of cookies scintillator contained in 34.5... Reduction of the R & D of the R & D for 2S! Rate of Ξb− baryons detected in the paper data taking in 2020 HL-LHC, will require a preparation program the. 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