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Prof.
Norbert Pietralla
(TU Darmstadt)
16/10/2017, 14:30
Double-gamma (gg) decay of an excited quantum state is an electromagnetic decay process of second order in the coupling constant. It represents the emission of two photons in a single quantum transition instead of one. Their total energy corresponds to the transition energy and their energy distributions are dictated by the available phase space. The process of gg-decay is equivalent to the...
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Mr
Leendert Hayen
(IKS, KU Leuven)
16/10/2017, 14:30
The study of nuclear beta decay has continually been at the forefront in exposing the properties of the electroweak interaction, and forms a sensitive probe in searching for Beyond Standard Model hints. It is an essential ingredient in the analysis of the so-called reactor antineutrino anomaly, and current results are obtained through the application of extensive averaging and basic...
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Dr
ADRIANO DI GIOVANNI
(NEW YORK UNIVERSITY ABU DHABI)
16/10/2017, 14:50
We present the performances and characterization of a detector array made of S13370-3050CN, VUV4 generation of Multi-Pixel Photon Counter manufactured by Hamamatsu, sensitive to vacuum ultraviolet (VUV) light, in the range of interest of the xenon scintillation. The array is equipped with a low power consumption preamplifier electronics and can be operated at liquid xenon temperature (175 K)....
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Prof.
Peter Egelhof
(GSI Darmstadt)
16/10/2017, 14:50
Precise data on fission-fragment yield distributions in terms of mass, nuclear charge, and kinetic energy are of great interest for a better understanding of the fission process. Precise isotopic yields for 92Rb and 96Y, in particular, are important for the investigation of reactor antineutrino oscillations and the study of the reactor antineutrino anomaly [1]
In a recent experiment,...
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Dr
Natalia Di Marco
(LNGS)
16/10/2017, 15:10
The COSINUS (Cryogenic Observatory for SIgnals seen in Next-generation Underground Searches) project aims to provide a model independent cross-check of the long-standing DAMA/LIBRA claim on the observation of dark matter by using the same target material, but with a different experimental approach.
The use of sodium iodide (NaI) crystals, operated at cryogenic temperature as scintillating...
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Dr
Luis Alvarez Ruso
(Instituto de Fรญsica Corpuscular (IFIC), Valencia)
16/10/2017, 15:10
The precise determination of neutrino properties in current and future accelerator-based oscillation experiments requires a good understanding and realistic modeling of neutrino interactions in the detectors; it is crucial to distinguish signal from background, reconstruct the neutrino energy and minimize systematic uncertainties. Our present theoretical description of quasielastic and...
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Dr
Luigi Coraggio
(INFN-NA)
16/10/2017, 15:30
We report on the calculation of double-beta decay properties for nuclei around 132Sn within the framework of the realistic shell model. The effective shell-model Hamiltonian and transition operators are derived by way of many-body perturbation theory [1,2], without resorting to empirical effective quenching factors for the transition operators. We present the results for Gamow-Teller and...
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Dr
Javier Menendez
(Center for Nuclear Study, University of Tokyo)
17/10/2017, 14:30
We study the double Gamow-Teller (DGT) transition of Ca-48 with state-of-the-art nuclear shell model calculations, including up to two harmonic oscillator shells (sd and pf shells). An analysis of the sensitivity of the DGT strength distribution with respect to nuclear correlations shows that the centroid energy of the DGT giant resonance depends mostly on the isovector pairing interaction,...
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Dr
Loredana gastaldo
(Kirchhoff Institute for Physics, Heidelberg University)
17/10/2017, 14:30
The Electron Capture in Ho-163 (ECHo) experiment is designed to investigate the electron neutrino mass with sub-eV sensitivity by the analysis of the electron capture energy spectrum of Ho-163. The sensitivity on the electron neutrino mass is crucially related to the energy available for the decay ๐ = 2833(30๐ ๐ก๐๐ก)(15๐ ๐ฆ๐ ) eV, which has been precisely determined by the ECHo collaboration....
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Dr
Chiara Brofferio
(MIB and INFN-Bicocca)
17/10/2017, 14:50
The Cryogenic Underground Observatory for Rare Events (CUORE) is the first bolometric experiment searching for neutrinoless double beta decay that has been able to reach the 1-ton scale. The detector consists of an array of 988 TeO2 crystals arranged in a cylindrical compact structure of 19 towers. The construction of the experiment and, in particular, the installation of all towers in the...
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Dr
Emanuele Leonora
(CT)
17/10/2017, 14:50
The KM3NeT project is building a neutrino telescope in the depths of the Mediterranean Sea. The telescope will consist of cubic kilometer sized 3-dimensional arrays of Digital Optical Modules (DOMs), suspended in the sea by vertical string structures, called detection units.
The KM3NeT telescope will comprise two detectors with different density of the optical modules: KM3NeT/ARCA at the...
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Dr
Giulia Pagliaroli
(GSSI)
17/10/2017, 15:10
Next galactic core-collapse supernova (CCSN) is a one for life event that we should not miss. The detection of its electromagnetic waves, neutrinos and gravitational waves can probe the supernova engine improving our learning of this catastrophic event. A robust emission of low-energy neutrinos is expected to accompany a CCSN explosion, however the identification of real astrophysical bursts...
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Dr
Michele Pozzato
(INFN-Bo)
17/10/2017, 15:10
The precision era of neutrino physics requires measurements of
absolute neutrino cross sections at the GeV scale with exquisite (1%)
precision. These measurements are presently limited by the
uncertainties on neutrino flux: the goal of the ERC ENUBET Project is
to demonstrate that such uncertainties can be removed employing novel
monitoring techniques of the leptons at the neutrino...
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Dr
Josรฉ Antonio Lay Valera
(Dpto. de Fรญsica Atรณmica, Molecular y Nuclear, Universidad de Sevilla)
17/10/2017, 15:30
Single and double charge-exchange reactions are of a great interest specially due to its connection with the Fermi and Gamow-Teller transitions and the corresponding single and double beta decays.
Within this project, charge-exchange reactions with heavy ions at intermediate energies will be performed for several neutrinoless double beta decay candidates. At these energies, there are...
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Dr
Mathieu Bongrand
(LAL CNRS)
17/10/2017, 15:30
The revaluation of the reactor flux for ฮธ13 experiments lead to a deficit of measured anti-neutrinos compared to theoretical prediction. This so-called the Reactor Anti-neutrino Anomaly (RAA) could be explained by flavor oscillations to a new type of neutrinos: the sterile neutrino.
The SoLid experiment intends to search for active-to-sterile anti-neutrino oscillations at the very
short...
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Dr
Alfredo Galindo-Uribarri
(Oak Ridge National Laboratory)
19/10/2017, 14:30
Neutrino physics has entered an era of precision measurements, revealing gaps in our knowledge of the fundamental nuclear data-underlying reactor modeling codes and, potentially, the quantum mechanical behavior of reactor antineutrino emissions. Oak Ridge National Laboratory (ORNL) has two powerful neutrino sources providing unique opportunities for basic and applied research. Firstly, the...
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Prof.
Volker Werner
(TU Darmstadt)
19/10/2017, 14:30
The search for neutrino-less double-beta decays is one of the major strives to foster our understanding on the nature of neutrinos. Firstly, the observation of this rare process would identify its fundamental nature as a Majorana particle. Secondly, it would allow to extract a neutrino mass. The latter, however, is only possible via the input of matrix elements from nuclear structure models....
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Dr
Jason Detwiler
(University of Washington)
19/10/2017, 14:50
The Majorana Demonstrator is performing a sensitive search for the neutrinoless double-beta decay of 76Ge using an ultra-low background array of enriched HPGe detectors deployed at the Sanford Underground Research Facility in Lead, SD. This rare process is generically predicted to occur by large classes of beyond-the-Standard-Model theories, and its observation would indicate that lepton...
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Dr
Li Yufeng
(Institute of High Energy Physics)
19/10/2017, 14:50
In this talk we will present our study on the probe of absolute neutrino masses using the time of flight effects of supernova neutrinos,we will also discuss the sensitivity of neutrino mass ordering via the MSW effects of supernova neutrinos. Taking the future liquid scintillator as an illustration, we will present the quantitative results for the abovementioned topics.
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Dr
Jesus Lubian Rios
(Institute of Physics, Federal Fluminense University)
19/10/2017, 15:10
In the present work the correlation between long-range collective and short-range pairing correlations in the two-neutron transfer reaction 64Ni(18O,16O)66Ni to the ground and the low-lying states is discussed. For the analysis of the experimental data two microscopic models are used: two-step CCBA and the independent coordinates models. The spectroscopic amplitudes are determined by two...
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Dr
Wan-lei Guo
(Institute of High Energy Physics, Chinese Academy of Sciences)
19/10/2017, 15:10
We explore the electron neutrino signals from light dark matter (DM)
annihilation in the Sun for the large liquid scintillator detector
JUNO. In terms of the spectrum features of three typical DM
annihilation channels $\chi \chi \rightarrow \nu \bar{\nu},\tau^+
\tau^-, b \bar{b}$, we take two sets of selection conditions to
calculate the expected signals and atmospheric neutrino...
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Dr
Jose Roberto Brandao de Oliveira
(Universidade de Sao Paulo)
19/10/2017, 15:30
Particle gamma coincidence measurements are an effective tool for the investigation of nuclear reactions in the cases where the particle spectra energy resolution is insufficient to separate nearby excited nuclear states. Two new spectrometer projects are under development, with some challenging technical characteristics in common, one for the investigation of weakly bound nuclear beam...
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Dr
Giacomo De Angelis
(LNL)
19/10/2017, 15:30
The search for physics beyond the Standard Model (SM) is presently a major issue. Despite its
spectacular success, it is recognized that the SM could be incomplete and could eventually be
incorporated into a more fundamental framework. As an example the excess of matter over
antimatter in the Universe indicates the presence of baryon-number- violating interactions and most
likely of new...
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Dr
Maura Pavan
(MIB)
19/10/2017, 15:50
CUPID-0 is the first step of a next generation project based on cryogenic calorimeters equipped with light detectors for particle identification. The Zn82Se crystal array of CUPID0 (~2x1025 0nDBD emitters) is in operation at Laboratori Nazionali del Gran Sasso since the beginning of 2017.
In this contribution we present the status and the preliminary results of the experiment as well as the...
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Prof.
Ken Long
(Imperial College London)
19/10/2017, 15:50
The nuSTORM facility will provide \nu_e and \nu_\mu beams from the
decay of low energy muons confined within a storage ring. The
instrumentation of the ring, combined with the excellent knowledge of
muon decay, will make it possible to determine the neutrino flux at
the %-level or better. The neutrino and anti-neutrino event rates are
such that the nuSTORM facility serving a suite of...
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Dr
Retief Neveling
(iThemba LABS)
20/10/2017, 14:30
Nuclear structure information obtained from transfer reactions
can be used to test calculations of nuclear matrix elements,
which is a key ingredient in the ultimate search for the effective neutrino mass.
There are only a few remaining facilities that combine suitable accelerators and magnetic spectrometers in order to perform these precision, though fairly routine, experiments.
It is...
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Dr
J. Hidaka
(Mechanical Engineering Department, Meisei University, 2-1-1 Hodokubo, Hino, Tokyo 191-8506, Japan)
20/10/2017, 14:30
Energy spectrum of relic supernova neutrinos (RSNs) tells us valuable information
about cosmic core-collapsed SNe as neutrino sources and their cosmological
evolution. Recent astronomical observations and theoretical studies of SNe give
new insights on stellar evolution, which also influence supernova explosion
mechanism. RSN energy spectrum is an important tool to investigate...
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Ms
BERNADETTE REBEIRO
(UNIVERSITY OF THE WESTERN CAPE, SOUTH AFRICA)
20/10/2017, 14:50
In addition to establishing the Majorana nature of neutrinos, obtaining the absolute neutrino mass scale is now the focus of several large-scale neutrinoless double beta decay experiments.
The current challenge in determining the neutrino mass accurately depends of calculation of nuclear matrix elements (NME's) in the select nuclei where these decays can take place. It is well known that the...
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Dr
Francesco Tortorici
(CT)
20/10/2017, 14:50
The ICARUS T600 detector, with about 500 tons of sensitive mass, is the largest Liquid Argon
Time Projection Chamber (LAr TPC) ever realized. In 2013 ICARUS concluded an about 4
years long experiment with the T600 detector at the LNGS underground laboratory, taking
data both with the CNGS neutrino beam and cosmic rays.
This very successful experiment demonstrated the high spatial and...
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Mr
Andrej Babic
(Czech Technical University in Prague)
20/10/2017, 15:10
We study a new mode of the neutrinoless and two-neutrino double-beta decay in which a single electron is emitted from the atom. The other electron is directly produced in one of the available s_1/2 or p_1/2 subshells of the daughter ion. The neutrinoless electron-production mode 0nEPb^-, which would manifest through a monoenergetic peak at the endpoint of the single-electron energy spectrum,...
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Domenico Lo Presti
(CT)
20/10/2017, 15:10
The objective of the research and development activities, regarding the upgrade of the focal plane
detector (FPD) and the ฮณ wall detectors of NUMEN, is the construction of new detectors capable to fulfil the
requirements of high event rate, radiation tolerance and data acquisition and transmission bandwidth
deriving from the upgrade of the superconducting cyclotron at Laboratori Nazionali...
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Dr
Nobuo Hinohara
(Center for Computational Sciences, University of Tsukuba)
20/10/2017, 15:30
Isovector/isoscalar neutron-proton pairing interaction is known to suppress the Fermi/Gamow-Teller nuclear matrix element. This effect of the neutron-proton pairing was known from the quasiparticle random-phase approximation (QRPA) calculation. However, the QRPA breaks down at the phase transition from the normal like-particle superconducting phase to the neutron-proton pair superconducting...
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Mr
Alessandro Minotti
(CEA - Saclay)
20/10/2017, 15:30
In the recent years, major milestones in neutrino physics were accomplished at nuclear reactors: the smallest neutrino mixing angle ฮธ13 was determined with high precision and the emitted antineutrino spectrum was measured at unprecedented resolution. However, two anomalies, the first one related to the absolute flux and the second one to the spectral shape, have yet to be solved. The flux...
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Dr
Franciole Marinho
(UFSCAR)
20/10/2017, 15:50
The ARAPUCA concept has been proposed as a simple and neat solution for increasing the effective collection area of SiPMs through the shifting and trapping of scintillation light in noble liquids, thus with great potential of improving timing and calorimetry resolution in neutrino and dark matter search experiments using time projection chambers. It is expected to achieve a single photon...
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