Emilio Ciuffoli
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View article: Testing the Gallium anomaly using electron-neutrino scattering
Testing the Gallium anomaly using electron-neutrino scattering Open
A bstract The Gallium anomaly is an unexplained deficit in the neutrinos observed during the calibration of GALLEX and SAGE using a 51 Cr radioactive source and recently confirmed by BEST. The possible explanations for this deficit include…
View article: Finite Energy Resolution, Correlations Between Bins and Non-Nested Hypotheses
Finite Energy Resolution, Correlations Between Bins and Non-Nested Hypotheses Open
We show that whenever independent events are binned, there is no correlation between bins. In particular, neither the uncertainty in the energy resolution nor a systematic error in the energy response of a detector will lead to a correlati…
View article: A New $^{82}$Se detector for Neutrinoless Double Beta Decay Searches
A New $^{82}$Se detector for Neutrinoless Double Beta Decay Searches Open
N$\\nu$DEx (No neutrino Double-beta-decay Experiment) is a new Se-based TPC detector that will be placed in China Jinping Underground Laboratory (CJPL) looking for neutrinoless double beta decay. N$\\nu$DEx-100, the experiment phase with 1…
View article: Wavepacket Localization, Evolution and Decoherence in Neutrino Oscillations
Wavepacket Localization, Evolution and Decoherence in Neutrino Oscillations Open
I will present some of the results obtained regarding the emergence of decoherence in neutrino oscillations. In our model all the particles, including the source and detector, are treated dynamically and evolved consistently with Quantum F…
View article: Neutron Activation Background in the NvDEx Experiment
Neutron Activation Background in the NvDEx Experiment Open
An extremely low-background environment is a crucial requirement for any neutrinoless double beta decay experiment. Neutrons are very difficult to stop, because they can pass through the shields and activate nuclei in the detector, even in…
View article: Where neutrino decoherence lies
Where neutrino decoherence lies Open
Recently, several studies of neutrino oscillations in the vacuum have not found the decoherence long expected from the separation of wave packets of neutrinos in different mass eigenstates. We show that such decoherence will, on the other …
View article: Where Neutrino Decoherence Lies
Where Neutrino Decoherence Lies Open
Recently, several studies of neutrino oscillations in the vacuum have not found the decoherence long expected from the separation of wave packets of neutrinos in different mass eigenstates. We show that such decoherence will, on the other …
View article: Quantum Decoherence in Neutrino Oscillations
Quantum Decoherence in Neutrino Oscillations Open
Quantum decoherence in neutrino oscillations was theorized almost 50 years ago, however there is still no clear theoretical understanding of this phenomenon, not even agreement on whether or not it could be observed at all. Treating all pa…
View article: Measuring entangled neutrino states in a toy model QFT
Measuring entangled neutrino states in a toy model QFT Open
Localized wave packet treatments of neutrino oscillations by various groups lead to mutually inconsistent predictions. The neutrino wave packet description arises as an approximate substitute for the evolution of an entangled state which i…
View article: Statistical Methods for the Neutrino Mass Hierarchy Determination
Statistical Methods for the Neutrino Mass Hierarchy Determination Open
In the next years, several experiments will try to perform a precise measurement of the neutrino mass hierarchy, among these there are also reactor neutrino experiments, such as JUNO and RENO 50. One of the challenges that must be overcome…
View article: Wave packets losing their covariance
Wave packets losing their covariance Open
In neutrino physics, it is sometimes assumed that all wave packets must transform covariantly as Lorentz vectors. We show in a simple example that even if the initial conditions of a wave packet are covariant, then evolution in a relativis…
View article: Measuring Entangled Neutrino States in a Toy Model QFT
Measuring Entangled Neutrino States in a Toy Model QFT Open
Localized wave packet treatments of neutrino oscillations by various groups lead to mutually inconsistent predictions. The neutrino wave packet description arises as an approximate substitute for the evolution of an entangled state which i…
View article: Neutrino Oscillations in the Vacuum
Neutrino Oscillations in the Vacuum Open
The initial configuration of a neutrino experiment consists of wave packets, created by the experimenter. Unmeasured final states are essentially delocalized, but it is conventional to nonetheless treat them as localized wave packets as th…
View article: A Sterile Neutrino Search Experiment at the Compact Materials Irradiation Facility in China.
A Sterile Neutrino Search Experiment at the Compact Materials Irradiation Facility in China. Open
The Compact Material Irradiation Facility (CMIF) in China is a current project that will provide a compact deuteron-beryllium neutron source. The target of this facility will be an intense and compact Isotope Decay-At-Rest (IsoDAR) neutrin…
View article: Entangled neutrino states in a toy model QFT
Entangled neutrino states in a toy model QFT Open
\n It has been claimed that wave packets must be covariant and also that decohered neutrino oscillations are always revived during measurement. These conjectures are supported by general arguments which are not specific to the electroweak …
View article: Wave Packets Losing Their Covariance
Wave Packets Losing Their Covariance Open
In neutrino physics, it is sometimes assumed that all wave packets must transform covariantly as Lorentz vectors. We show in a simple example that even if the initial conditions of a wave packet are covariant, then evolution in a relativis…
View article: Measuring the Neutron Distribution from Coherent Elastic Neutrino Nucleus Scattering
Measuring the Neutron Distribution from Coherent Elastic Neutrino Nucleus Scattering Open
Last year the COHERENT collaboration was able to measure for the first time the Coherent Elastic Neutrino Nucleus Scattering (CE$ν$NS). Neutrinos within the right energy range can be produced in large quantities at accelerator facilities v…
View article: Entangled Neutrino States in a Toy Model QFT
Entangled Neutrino States in a Toy Model QFT Open
It has been claimed that wave packets must be covariant and also that decohered neutrino oscillations are always revived during measurement. These conjectures are supported by general arguments which are not specific to the electroweak the…
View article: Extracting Nuclear Form Factors From Coherent Neutrino Scattering
Extracting Nuclear Form Factors From Coherent Neutrino Scattering Open
Recently the COHERENT collaboration reported the first observation of coherent elastic neutrino nucleus scattering (CENNS), opening the door to the use of neutrinos for the study of nuclear properties. Studying the CENNS spectrum, indeed, …
View article: Extracting nuclear form factors with coherent neutrino scattering
Extracting nuclear form factors with coherent neutrino scattering Open
Coherent elastic neutrino-nucleus scattering (CEvNS) can be used to determine the neutron part of nuclear form factors, unlocking intrinsic properties of nuclear structure. In contrast with other such methods, CEvNS is free from both stron…
View article: Statistical Methods for the Neutrino Mass Hierarchy Determination
Statistical Methods for the Neutrino Mass Hierarchy Determination Open
In the next decades several experiments will attempt to determine the neutrino mass hierarchy, i.e. the sign of $\Delta m^2_{31}$. Since the two hierarchies are non-nested hypotheses, $\Delta\chi^2=\chi^2_{IH}-\chi^2_{NH}$ does not follow …
View article: Neutrino Physics at ADS Facilities
Neutrino Physics at ADS Facilities Open
Accelerator Driven System (ADS) subcritical reactors are being developed around the world. The main goals of this kind of facility are to produce energy and, at the same time, to dispose of nuclear waste, which will be used to power nuclea…
View article: Neutrino Physics with Accelerator Driven Subcritical Reactors
Neutrino Physics with Accelerator Driven Subcritical Reactors Open
Accelerator Driven Subcritical System (ADS) reactors are being developed around the world, to produce energy and, at the same time, to provide an efficient way to dispose of and to recycle nuclear waste. Used nuclear fuel, by itself, canno…
View article: Statistical Methods for the Neutrino Mass Hierarchy
Statistical Methods for the Neutrino Mass Hierarchy Open
In the next decade several experiments will attempt to determine the neutrino mass hierarchy, i.e. the sign of $Δm_{31}^2$. In the last years it was noticed that the two hierarchies are disjoint hypotheses and, for this reason, Wilks' theo…
View article: Neutrino CP violating phase from muon decay at rest
Neutrino CP violating phase from muon decay at rest Open
The determination of the value of θ 13 , which turned out to be considerably larger than the expected, opened the way to the measurement of the CP violating phase δ CP in the leptonic sector.We consider the following experimental setup: a …
View article: Vetoing cosmogenic muons in a large liquid scintillator
Vetoing cosmogenic muons in a large liquid scintillator Open
At upcoming medium baseline reactor neutrino experiments the spallation 9Li background will be somewhat larger than the inverse β decay reactor neutrino signal. We use new FLUKA simulations of spallation backgrounds to optimize a class of …
View article: Vetoing Cosmogenic Muons in A Large Liquid Scintillator
Vetoing Cosmogenic Muons in A Large Liquid Scintillator Open
At upcoming medium baseline reactor neutrino experiments the spallation 9Li background will be somewhat larger than the inverse beta decay reactor neutrino signal. We use new FLUKA simulations of spallation backgrounds to optimize a class …