The CUORE and CUORE-0 experiments at LNGS D’Addabbo, A.; Alduino, C.; Alfonso, K. ...
EPJ Web of Conferences,
01/2017, Letnik:
164
Journal Article, Conference Proceeding
Recenzirano
Odprti dostop
The Cryogenic Underground Observatory for Rare Events (CUORE) is a 1-ton scale bolometric experiment devoted to the search of the neutrinoless double-beta decay (0νββ) in 130Te. The CUORE detector ...consists of an array of 988 TeO2 crystals operated at 10 mK. CUORE-0 is the CUORE demonstrator: it has been built to test the performance of the upcoming CUORE experiment and represents the largest 130Te bolometric setup ever operated. CUORE-0 has been running at Laboratori Nazionali del Gran Sasso (Italy) from 2013 to 2015. The final CUORE-0 analysis on 0νββ and the corresponding detector performance are presented. The present status of the CUORE experiment, now in its final construction and commissioning phase, are discussed. The results from assembly of the detector and the commissioning of the cryostat are reported.
The Cryogenic Underground Observatory for Rare Events (CUORE) is a large-scale double beta decay experiment utilizing cryogenic bolometers that is currently being commissioned at the Gran Sasso ...National Laboratory (LNGS) in Italy. Its primary focus is to search for the neutrinoless double beta decay of 130Te with a projected sensitivity to Majorana neutrino masses near the inverted mass hierarchy region. The detector is composed of 988 5x5x5-cm3 TeO2 crystals of natural isotopic composition arranged in 19 towers of 52 crystals each, all housed in a common dilution refrigerator. A single CUORE-like tower, CUORE-0, was assembled and operated as a stand-alone detector for a period of approximately two years. In this report, the results from CUORE-0 and the current status and physics potential of CUORE are presented.
The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay in
130
Te. Observation of the process would unambiguously establish that ...neutrinos are Majorana particles as well as provide information about the absolute neutrino mass scale and mass hierarchy.The CUORE setup will consist of an array of 988 tellurium dioxide crystals (containing 206 kg of
130
Te in total), operated as bolometers at a temperature of
∼
10 mK. The experiment is now under construction at the Gran Sasso National Laboratory in Italy. As a first step towards CUORE, a tower (CUORE-0) has been assembled and is taking data. Here a detailed description of the CUORE-0 tower and its performance is reported. The status of the CUORE experiment and its expected sensitivity will then be discussed.
The Cryogenic Underground Observatory for Rare Events (CUORE) is a large-scale double beta decay experiment utilizing cryogenic bolometers that is currently being commissioned at the Gran Sasso ...National Laboratory (LNGS) in Italy. Its primary focus is to search for the neutrino-less double beta decay of 130Te with a projected sensitivity to Majorana neutrino masses near the inverted mass hierarchy region. The detector is composed of 988 5x5x5-cm3 TeO2 crystals of natural isotopic composition arranged in 19 towers of 52 crystals each, all housed in a common dilution refrigerator. A single CUORE-like tower, CUORE-0, was assembled and operated as a stand-alone detector for a period of approximately two years. In this report, the results from CUORE-0 and the current status and physics potential of CUORE are presented.
Neutrinoless double-beta (0
ν
β
β
) decay is a hypothesized lepton-number-violating process that offers the only known means of asserting the possible Majorana nature of neutrino mass. The Cryogenic ...Underground Observatory for Rare Events (CUORE) is an upcoming experiment designed to search for 0
ν
β
β
decay of
130
Te using an array of 988 TeO
2
crystal bolometers operated at 10 mK. The detector will contain 206 kg of
130
Te and have an average energy resolution of 5 keV; the projected 0
ν
β
β
decay half-life sensitivity after five years of livetime is 1.6 × 10
26
y at 1
σ
(9.5 × 10
25
y at the 90% confidence level), which corresponds to an upper limit on the effective Majorana mass in the range 40–100 meV (50–130 meV). In this paper, we review the experimental techniques used in CUORE as well as its current status and anticipated physics reach.
The Cryogenic Underground Observatory for Rare Events (CUORE) is an upcoming experiment designed to search for the neutrinoless double-beta decays. Observation of the process would unambiguously ...establish that neutrinos are Majorana particles and provide information on their absolute mass scale hierarchy. CUORE is now under construction and will consist of an array of 988 TeO2 crystal bolometers operated at 10 mK, but the first tower (CUORE-0) is already taking data. The experimental techniques used will be presented as well as the preliminary CUORE-0 results. The current status of the full-mass experiment and its expected sensitivity will then be discussed.
Dark Matter Search with CUORE-0 and CUORE Aguirre, C.P.; Artusa, D.R.; Avignone, F.T. ...
Physics procedia,
2015, 2015-00-00, 2015-01-01, Letnik:
61, Številka:
C
Journal Article
Odprti dostop
The Cryogenic Underground Observatory for Rare Events (CUORE) is a ton-scale experiment made of TeO2 bolometers that will probe the neutrinoless double beta decay of 130Te. Excellent energy ...resolution, low threshold and low background make CUORE sensitive to nuclear recoils, allowing a search for dark matter interactions. With a total mass of 741kg of TeO2, CUORE can search for an annual modulation of the counting rate at low energies. We present data obtained with CUORE-like detectors and the prospects for a dark matter search in CUORE-0, a 40-kg prototype, and CUORE.
Phenotypic and genetic parameters of reproductive traits in Tunisian Holstein cows M'hamdi, N., Institut Superieur Agronomique de Chott-Mariem, Sousse (Tunisia); Aloulou, R., Institut Superieur Agronomique de Chott-Mariem, Sousse (Tunisia); Brar, S.K., Institut National de la Recherche Scientifique, Quebec (Canada) ...
Biotechnology in Animal Husbandry (Serbia),
(2010), 2010-00-00, Letnik:
26, Številka:
5-6
Journal Article
Recenzirano
Odprti dostop
Various factors influencing reproduction in dairy Holstein cows were
routinely evaluated and genetic parameters were estimated for four traits for
assessing fertility of artificially inseminated ...cows: Calving to first
service interval (CFSI), calving interval (CI), calving to conception
interval (CCI), and number of services per conception (NSC). Data used in
this investigation consisted of records of insemination and calving events on
Tunisian Holstein cows. Records were registered from 1994 to 2003 in 150
herds to study the effects of non-genetic factors and estimate the
heritabilities of those fertility traits. The factors examined were: month
and year of calving, herd, parity, and year-month of calving. The effect of
month and year of calving (or insemination), herd, parity and year-month of
calving were included in the model and were significant (P < 0.01) except for
the number of lactations that does not have an effect on the number of
services per conception. A decreasing efficiency in cow fertility was
observed over the last years, with a longer day for first service interval.
Heritability for fertility traits was low ranging from 0.027 for NSC to 0.067
for CI. The results suggested that more attention should be paid to herds
with too low fertility traits and that monitoring/alert and intervention
schemes should be tested in research/action approaches.
Razliciti faktori koji uticu na reprodukciju mlecnih holstajn krava su
ocenjivani, kao i genetski parametri za cetiri osobine koje se koriste za
ocenu plodnosti vestacki osemenjenih krava: interval od teljenja do prvog
pripusta (CFSI), interval izmedju teljenja (CI), interval of teljenja do
koncepcije (CCI), i broj pripusta po koncepciji (NSC). Podaci koji korisceni
u ovom istrazivanju se sastoje od evidencije o inseminaciji i teljenju kod
holstajn krava u Tunisu. Evidencija postoji od 1994 do 2003 u 150 zapata kako
bi se ispitali efekti negenetskih faktora i ocenili heritabiliteti navedenih
osobina plodnosti. Ispitani faktori su bili: mesec i godina teljenja, zapat,
teljenje po redu, i godina-mesec teljenja. Uticaj meseca i godine teljenja
(ili osemenjavanja), zapata, teljenja po redu i godina-mesec teljenja su
ukljuceni u model i bili su signifikantni (P < 0. 01) osim za broj laktacija
gde nema uticaja na broj pripusta/povadjanja po koncepciji. Smanjenje
efikasnosti kod plodnosti krava je registrovano tokom prethodnih godina, sa
intervalom do prvog pripusta koji je duzi za jedan dan. Heritabilitet za
osobine plodnosti je bio nizak i varirao od 0.027 za NSC do 0.067 za CI.
Rezultati upucuju na to da vise paznje mora da se posveti zapatima sa niskim
vrednostima za plodnost i da bi trebalo testirati sheme monitoringa/uzbune i
intervencije u istrazivackim/akcionim pristupima.
The CUORE (Cryogenic Underground Observatory for Rare Events) experiment will search for neutrinoless double beta decay of 130Te. With 741kg of TeO2 crystals and an excellent energy resolution of 5 ...keV (0.2%) at the region of interest, CUORE will be one of the most competitive neutrinoless double beta decay experiments on the horizon. With five years of live time, CUORE projected neutrinoless double beta decay half-life sensitivity is 1.6 × 1026 y at 1σ (9.5 × 1025 y at the 90% confidence level), which corresponds to an upper limit on the effective Majorana mass in the range 40–100 meV (50–130 meV). Further background rejection with auxiliary light detector can significantly improve the search sensitivity and competitiveness of bolometric detectors to fully explore the inverted neutrino mass hierarchy with 130Te and possibly other double beta decay candidate nuclei.
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