First simultaneous measurement of low-energy pp-chain solar neutrinos and prospects for CNO neutrino detection in Borexino
This thesis presents the first simultaneous measurement of low energy neutrinos produced in the Sun through the chain of reactions started from the proton–proton fusion (pp chain) and detected by the Borexino experiment. The Borexino experiment uses about 300 tons of liquid scintillator as target material. Solar neutrinos interact with the electrons of the scintillator and the energy released in the interaction is converted into scintillation light and detected by photo-multipliers. The measu...
Non linear Schrödinger equations and quantum fluids non vanishing at infinity: incompressible limits and quantum vortices
This thesis concerns the mathematical analysis of some hydrodynamic models describing quantum fluids, namely fluids whose macroscopic behavior still exhibits quantum effects. The prototype model for such fluids is the quantum hydrodynamic (QHD) system arising as model in the description of phenomena like superfluidity, Bose-Einstein condensation (BEC), superconductivity, quantum plasmas and semi conductor devices. From a mathematical point of view, the QHD system is given by a compressible Eu...
Asymptotic Giant Branch (AGB) stars play a fundamental role in the determination of the observed abundances of light mass elements in the universe. In spite of great efforts, model predictions for the abundance of nuclides in AGB stars are rather uncertain due to the complex physical processes in the star. The lack of precise cross-section data, for the relevant proton capture reactions in particular, worsens the reliability of the model predictions for light element yields. The reaction 23N...
The thesis dealing with topics under model uncertainty consists of two main parts. In the first part, we introduce a reduced-form framework in the presence of multiple default times under model uncertainty. In particular, we define a sublinear conditional operator with respect to a family of possibly non-dominated priors for a filtration progressively enlarged by multiple ordered defaults. Moreover, we analyze the properties of this sublinear conditional expectation as a pricing instrument an...
- 8 Tesi di dottorato137
Data di pubblicazione
- Gran Sasso Science Institute137
- Settore INF/01 - Informatica18
- Settore FIS/04 - Fisica Nucleare ...15
- Settore MAT/07 - Fisica Matematica11
- Settore FIS/01 - Fisica Sperimentale9
- Settore MAT/05 - Analisi Matematica9
- Settore MAT/06 - Probabilita' e S...7
- Settore FIS/02 - Fisica Teorica, ...6
- Settore FIS/05 - Astronomia e Ast...6
- Settore M-GGR/02 - Geografia Econ...5
- Settore MAT/08 - Analisi Numerica5
- dark matter2
- gravitational waves2
- 2D Compressible Euler1
- 3d nonlinear models1
- [Hyperbolic conservation laws1
- Ab-initio calculation1
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