147 research outputs found
Sustainable Development for Rural Areas: A Survey on the Agritourism Rural Networks
The topic of sustainable growth is becoming central in the debate over the rural development policies. Rural communities can completely fulfil the new challenges in the area of sustainability only with the implementation of innovative forms of collaborations among their business networks. In this work, we consider a particular form of business collaboration arising within rural communities, namely Agritourism Rural Network (ARN). In an ARN, a farm, providing agritourism activities, represents a touchpoint between a network of business and organizations in a rural area and tourists interested in enjoying the local territory. With the aim to deeper the extend of the agritourism phenomenon in a rural region and the potential of the related ARNs in being means of sustainable development, we report main results of an empirical survey carried out in 2016 on a sample of 105 agritourism farms all belonging to the same region (Calabria, Italy). Results confirm our intuitions about the importance at farm level of setting agritourism activities and their impact for the ARN related to the farm and for the sustainable development of a local community as a whole
Multidifferential cross section measurements of νμ -argon quasielasticlike reactions with the MicroBooNE detector
We report on a flux-integrated multidifferential measurement of charged-current muon neutrino scattering on argon with one muon and one proton in the final state using the Booster Neutrino Beam and MicroBooNE detector at Fermi National Accelerator Laboratory. The data are studied as a function of various kinematic imbalance variables and of a neutrino energy estimator, and are compared to a number of event generator predictions. We find that the measured cross sections in different phase-space regions are sensitive to nuclear effects. Our results provide precision data to test and improve the neutrino-nucleus interaction models needed to perform high-accuracy oscillation analyses. Specific regions of phase space are identified where further model refinements are most needed
First Double-Differential Measurement of Kinematic Imbalance in Neutrino Interactions with the MicroBooNE Detector
We report the first measurement of flux-integrated double-differential quasielasticlike neutrino-argon cross sections, which have been made using the Booster Neutrino Beam and the MicroBooNE detector at Fermi National Accelerator Laboratory. The data are presented as a function of kinematic imbalance variables which are sensitive to nuclear ground-state distributions and hadronic reinteraction processes. We find that the measured cross sections in different phase-space regions are sensitive to different nuclear effects. Therefore, they enable the impact of specific nuclear effects on the neutrino-nucleus interaction to be isolated more completely than was possible using previous single-differential cross section measurements. Our results provide precision data to help test and improve neutrino-nucleus interaction models. They further support ongoing neutrino-oscillation studies by establishing phase-space regions where precise reaction modeling has already been achieved
First demonstration of O (1 ns) timing resolution in the MicroBooNE liquid argon time projection chamber
MicroBooNE is a neutrino experiment located in the Booster Neutrino Beamline (BNB) at Fermilab, which collected data from 2015 to 2021. MicroBooNE's liquid argon time projection chamber (LArTPC) is accompanied by a photon detection system consisting of 32 photomultiplier tubes used to measure the argon scintillation light and determine the timing of neutrino interactions. Analysis techniques combining light signals and reconstructed tracks are applied to achieve a neutrino interaction time resolution of O(1 ns). The result obtained allows MicroBooNE to access the nanosecond beam structure of the BNB for the first time. The timing resolution achieved will enable significant enhancement of cosmic background rejection for all neutrino analyses. Furthermore, the ns timing resolution opens new avenues to search for long-lived-particles such as heavy neutral leptons in MicroBooNE, as well as in future large LArTPC experiments, namely the SBN program and DUNE
New CC0\pi\ GENIE Model Tune for MicroBooNE
A novel tune has been made for the MicroBooNE experiment. The fit uses 4 new
parameters within the GENIE v3.0.6 Monte Carlo program. Charged current
pionless data from the T2K experiment was used. New uncertainties were
obtained. These results will be used in future MicroBooNE analyses.Comment: 24 pages, 14 figure
Search for heavy neutral leptons in electron-positron and neutral-pion final states with the MicroBooNE detector
We present the first search for heavy neutral leptons (HNL) decaying into
or final states in a liquid-argon time projection
chamber using data collected with the MicroBooNE detector. The data were
recorded synchronously with the NuMI neutrino beam from Fermilab's Main
Injector corresponding to a total exposure of protons on
target. We set upper limits at the confidence level on the mixing
parameter in the mass ranges MeV for the channel and MeV for
the channel, assuming . These limits represent the most stringent constraints in the
mass range MeV and the first constraints from a direct
search for decays.Comment: Version as accepted by Physical Review Letters, some presentational
changes and updated references, no changes to result
Measurement of triple-differential inclusive muon-neutrino charged-current cross section on argon with the MicroBooNE detector
We report the first measurement of the differential cross section
for inclusive
muon-neutrino charged-current scattering on argon. This measurement utilizes
data from 6.4 protons on target of exposure collected using the
MicroBooNE liquid argon time projection chamber located along the Fermilab
Booster Neutrino Beam with a mean neutrino energy of approximately 0.8~GeV. The
mapping from reconstructed kinematics to truth quantities, particularly from
reconstructed to true neutrino energy, is validated by comparing the
distribution of reconstructed hadronic energy in data to that of the model
prediction in different muon scattering angle bins after conditional constraint
from the muon momentum distribution in data. The success of this validation
gives confidence that the missing energy in the MicroBooNE detector is
well-modeled in simulation, enabling the unfolding to a triple-differential
measurement over muon momentum, muon scattering angle, and neutrino energy. The
unfolded measurement covers an extensive phase space, providing a wealth of
information useful for future liquid argon time projection chamber experiments
measuring neutrino oscillations. Comparisons against a number of commonly used
model predictions are included and their performance in different parts of the
available phase-space is discussed
First Measurement of Differential Charged Current Quasielasticlike νμ-Argon Scattering Cross Sections with the MicroBooNE Detector
We report on the first measurement of flux-integrated single differential cross sections for chargedcurrent
(CC) muon neutrino (νμ) scattering on argon with a muon and a proton in the final state, 40Ar
ðνμ; μpÞX. The measurement was carried out using the Booster Neutrino Beam at Fermi National
Accelerator Laboratory and the MicroBooNE liquid argon time projection chamber detector with an
exposure of 4.59 × 1019 protons on target. Events are selected to enhance the contribution of CC
quasielastic (CCQE) interactions. The data are reported in terms of a total cross section as well as single
differential cross sections in final state muon and proton kinematics.We measure the integrated per-nucleus
CCQE-like cross section (i.e., for interactions leading to a muon, one proton, and no pions above detection
threshold) of ð4.93 0.76stat 1.29sysÞ × 10−38 cm2, in good agreement with theoretical calculations. The
single differential cross sections are also in overall good agreement with theoretical predictions, except at
very forward muon scattering angles that correspond to low-momentum-transfer events.United States Department of Energy (DOE)National Science Foundation (NSF)Swiss National Science Foundation (SNSF)Science and Technology Facilities Council (STFC), part of the United Kingdom Research and InnovationRoyal Society of LondonAlbert Einstein Center for Fundamental Physics, Bern, SwitzerlandAzrieli FoundationZuckerman STEM Leadership ProgramIsrael Science FoundationVisiting Scholars Award Program of the Universities Research AssociationDE-AC02-07CH1135
Differential cross section measurement of charged current interactions without final-state pions in MicroBooNE
In this letter we present the first measurements of an exclusive electron
neutrino cross section with the MicroBooNE experiment using data from the
Booster Neutrino Beamline at Fermilab. These measurements are made for a
selection of charged-current electron neutrinos without final-state pions.
Differential cross sections are extracted in energy and angle with respect to
the beam for the electron and the leading proton. The differential cross
section as a function of proton energy is measured using events with protons
both above and below the visibility threshold. This is done by including a
separate selection of electron neutrino events without reconstructed proton
candidates in addition to those with proton candidates. Results are compared to
the predictions from several modern generators, and we find the data agrees
well with these models. The data shows best agreement, as quantified by
-value, with the generators that predict a lower overall cross section, such
as GENIE v3 and NuWro
First measurement of quasi-elastic baryon production in muon anti-neutrino interactions in the MicroBooNE detector
We present the first measurement of the cross section of Cabibbo-suppressed
baryon production, using data collected with the MicroBooNE detector
when exposed to the neutrinos from the Main Injector beam at the Fermi National
Accelerator Laboratory. The data analyzed correspond to
protons on target of neutrino mode running and protons on
target of anti-neutrino mode running. An automated selection is combined with
hand scanning, with the former identifying five candidate production
events when the signal was unblinded, consistent with the GENIE prediction of
events. Several scanners were employed, selecting between three
and five events, compared with a prediction from a blinded Monte Carlo
simulation study of events. Restricting the phase space to only
include baryons that decay above MicroBooNE's detection thresholds,
we obtain a flux averaged cross section of
cmAr, where statistical and systematic uncertainties are combined
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