Academic literature on the topic 'Massa del neutrino'
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Journal articles on the topic "Massa del neutrino"
González Sierra, Hernando, Osmin Ferrer Villar, and Ricardo Gaitán Lozano. "Ansatz para la Matriz de Masa de los Neutrinos con Fermiones Espejo." INGENIARE, no. 17 (July 1, 2014): 109. http://dx.doi.org/10.18041/1909-2458/ingeniare.17.583.
Full textMontoya, M., J. A. Rojas, and E. Saettone. "MONTE-CARLO SIMULATION FOR FRAGMENT MASS AND KINETIC ENERGY DISTRIBUTIONS FROM NEUTRON- INDUCED FISSION OF 235U." Revista de Investigación de Física 7, no. 01-02 (December 31, 2004): 25–29. http://dx.doi.org/10.15381/rif.v7i01-02.8805.
Full textValdez Morales, María Trinidad. "Caracterización y patogenicidad de poblaciones de Rotylenchulus spp. en cultivos hortícolas de Sinaloa, México." Avances en Investigación Agropecuaria 26, no. 2 (September 1, 2022): 23–24. http://dx.doi.org/10.53897/revaia.22.26.21.
Full textPRADO ZUTA, PIERO STEPHANO, JAMIR ALBERTO RAVINES AYAMBO, FRANKLIN JOSÉ PICÓN ARANA, and FABRIZIO ARMANDO MILLAN MONTALVO. "Análisis Físico-Matemático del Retorno de Corrientes de Falla a Tierra hacia el Transformador de Distribución en sistema IT." Revista Científica: BIOTECH AND ENGINEERING 1, no. 02 (July 28, 2021). http://dx.doi.org/10.52248/eb.vol1iss02.17.
Full text"Ruptura de parejas y efectos coulombianos en la fisión fría de las reacciones 233U(nth, f), 235U(nth, f) y 239PU(nth, f) Pair breaking and coulomb effects in cold fission reactions from 233U(nth, f), 235U(nth, f) y 239PU(nth, f)." Revista ECIPeru, January 7, 2019, 1–14. http://dx.doi.org/10.33017/reveciperu2012.0014/.
Full text"Influencia de la emisión de neutrones en la medición por el método de la doble energía de la distribución de masa y energía cinética de los fragmentos de la fisión espontánea del 252Cf." Revista ECIPeru, January 10, 2019, 15–19. http://dx.doi.org/10.33017/reveciperu2011.0003/.
Full textMarangunic, Cedomir. "Glaciares y los ecosistemas de montaña: Las importantes tareas pendientes." Revista de Glaciares y Ecosistemas de Montaña, no. 1 (December 2016). http://dx.doi.org/10.36580/rgem.i1.11-19.
Full textDissertations / Theses on the topic "Massa del neutrino"
BORGHESI, MATTEO. "Toward the first neutrino mass measurement of Holmes." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2022. http://hdl.handle.net/10281/379056.
Full textThe absolute mass of neutrinos is one of the most important riddles yet to be solved, since it has many implications in Particle Physics and Cosmology. The only model independent method of measuring the neutrino mass is based on the kinematic analysis of the beta or the electron capture (EC) decay, which only assumes momentum and energy conservation. Holmes is an ERC project started in 2014, which is currently being set up in the cryogenic laboratory of the University of Milano Bicocca. It will perform a direct measurement of the neutrino mass with a sensitivity of the order of 1 eV. In addition, it will prove the scalability of this technique to a next generation experiment that might go beyond the current expected sensitivity of the state of the art experiment, KATRIN. In order to reach its goal sensitivity, Holmes will use 1000 low temperature microcalorimeters, each implanted with an activity of 300 Bq of 163 Ho, performing thus a calorimetric measurement. In a calorimetric measurement of the electron capture (EC) decay of 163Ho, all the energy is measured except for the fraction carried away by the neutrino. Although the neutrino is not detected, the value of its mass affects the shape of the de-excitation spectrum, reducing also the end-point of the spectrum by an amount equal to m_nu. The spectrum distortion is statistically significant only in a region close to the end-point, where the count rate is lowest and background can easily hinder the signal. In terms of achievable statistical sensitivity, 163 Ho is one of the best candidate, given the combined effect of its low Q-value (2.833 keV) and the proximity of the highest energy peak to the end-point of the spectrum. 163 Ho also has a relatively short half life of 4570 years, which allows to embed a small number of nuclei in a small absorbing volume. Each single Holmes detector is composed of a 163 Ho ion-implanted gold absorber thermally coupled to a Transition Edge Sensor (TES). A TES is a sensitive thermometer, consisting of a superconductor Mo/Cu bi-layer film. The Holmes detectors not only need a fast recovery time to reduce the amount of dead time but also a quick time response to discriminate between two nearly coincident interactions. The latter is limited by the maximum sampling frequency set by the bandwidth of the acquisition system, which in turn is set by the number of detectors that need to be readout at the same time. Given the target number of detectors and the single pixel activity, the detectors and the microwave multiplexing readout system will be pushed to their limits to meet the Holmes requirements. During my PhD work I took care of various tasks, both hardware and software related. I tested the detector fabrication process and measured the resulting detector performances with the microwave multiplexing readout using external X-ray sources. I also studied the expected background due to cosmic rays and environmental radioactivity. At the same time, I developed a modular and robust software for signal processing and data analysis, alongside new algorithms for the pile-up discrimination, the Holmes expected main source of background. Chapter one briefly reviews the experimental efforts on the neutrino mass determination, with a spotlight on the state of the art experiments, while chapter two presents the Holmes experiment with its expected statistical sensitivity. Chapter 3 firstly introduces the physics behind the behavior of a Transition Edge Sensors, then focuses on the specific design and fabrication process of the Holmes detectors. Chapter 4 presents the analysis routines required to produce a clean calibrated spectrum from a raw dataset. Chapter 5 finally shows the measured detectors performances. The last part of the dissertation presents the expected background rate after the studies conducted with a dedicate measurements campaign.
Barbano, Eleonora. "Studio della risoluzione in impulso dei muoni nel Near Detector di DUNE." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19392/.
Full textFava, Angela. "L'esperimento ICARUS: dal T600 alle grandi masse. Studio e sviluppo di un sistema di trigger." Doctoral thesis, Università degli studi di Padova, 2010. http://hdl.handle.net/11577/3427065.
Full textIl rivelatore ICARUS-T600, installato ai LNGS e prossimo alla presa dati, e' la prima grande TPC ad Argon liquido (LAr-TPC): grazie alla sua ottima risoluzione in energia e alle capacità di imaging sara' in grado di dare contributi originali nell'ambito della fisica del neutrino e del decadimento del nucleone, nonostante la massa ridotta. La messa in funzione di questo rivelatore rappresenta inoltre, dopo 20 anni di R&D, un importante banco di prova della tecnica delle LAr-TPC in vista di futuri esperimenti dedicati alla ricerca di eventi rari con rivelatori ad Argon liquido di grande massa. Requisito essenziale per apparati di questo tipo e' un sistema di trigger efficiente e flessibile, in grado di limitare l'acquisizione alle sole regioni del rivelatore interessate dall'evento; il segnale che meglio si presta a questo scopo e', in ICARUS-T600, quello dei fili delle TPC. Sono state studiate, pertanto, due possibili strategie per l'estrazione di un segnale di trigger locale di primo livello dai fili della TPC: una e' basata sul segnale AWS somma analogica dei segnali di 32 canali consecutivi, mentre l'altra sfrutta un algoritmo di filtro medio di doppio rebinning (DR-slw) applicato ai segnali dei singoli fili. Entrambe le soluzioni sono state implementate hardware su opportune schede che sono state installate in una piccola LAr-TPC ai LNL per verificarne funzionalita' e prestazioni: questi test hanno fornito risultati molto incoraggianti, soprattutto per quanto riguarda il DR-slw, che prospettano la possibilita' di utilizzo di un trigger interno di questo tipo per la ricerca di eventi isolati in rivelatori ad Argon liquido di grande massa.
Piani, Goffredo. "Sull'interferenza quantistica indotta dal potenziale gravitazionale." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2019. http://amslaurea.unibo.it/19167/.
Full textLebois, Matthieu. "STRUCTURE DES NOYAUX DE GERMANIUM ET DE GALLIUM RICHES EN NEUTRONS AU-DELA DE N EGAL A 50 A ALTO." Phd thesis, Université Paris Sud - Paris XI, 2008. http://tel.archives-ouvertes.fr/tel-00384836.
Full textL'installation ALTO ne se limite pas à la fabrication de fragments de fission riches en neutrons. Au cours d'un test de radioprotection, un système de détection a été installé pour permettre l'étude de la décroissance radioactive de l'isotope 84Ga. L'analyse des données acquises au cours de cette mesure nous a permis d'apporter des indications sur la structure des noyaux de 84Ga, 84Ge, 84As et 83Ge. Pour 84Ga, nous avons identifié un état isomérique et proposé une configuration pour cet état et l'état fondamental du noyau. Pour 84Ge, nous avons observé les premiers états 2+ et 4+ dont le rapport des énergies nous a permis de conclure sur l'apparition de la collectivité attendue au-delà de N=50. L'étude de cette collectivité semble indiquer un affaiblissement du gap Z=28 à l'approche de 78Ni. Nous avons proposé le premier schéma de niveau de 84As. Nous avons aussi proposé une configuration pour les états observés de ce noyau. Enfin, pour interpréter le schéma de niveau de 83Ge, un modèle permettant de caractériser le couplage en un neutron et un cœur a été employé. Ce dernier a été appliqué à l'ensemble de la chaîne isotonique N=51 pour tester sa validité. Puis, son application au noyau de 83Ge a confirmé l'existence de ce type de structure dans ce noyau. Les résultats obtenus avec ce modèle ont été extrapolés afin de proposer une prédiction du schéma de niveau de 81Zn.
Bico, Giulio. "Fisica dell'accrescimento." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amslaurea.unibo.it/24859/.
Full textBooks on the topic "Massa del neutrino"
IL SEGRETO DEL VENTO: Viaggio nella profondità dell'essere. Palermo, Italy: ONLUS S.M.V.P - 90041 Balestrate (PA), 2010.
Find full textIL SEGRETO DEL VENTO: Viaggio nella profondità dell'essere. MILANO: ONLUS S.M.V.P - 90041 Balestrate (PA), 2007.
Find full textIL SEGRETO DEL VENTO: VIAGGIO PROFONDO NELLA CONOSCENZA DELL'ESSERE. MILANO: ONLUS S.M.V.P - 90041 Balestrate (PA) tel +393287573178, 2009.
Find full textBook chapters on the topic "Massa del neutrino"
Bendiscioli, Giorgio. "Misura della massa del neutrino." In UNITEXT, 217–41. Milano: Springer Milan, 2013. http://dx.doi.org/10.1007/978-88-470-5453-0_8.
Full textBendiscioli, Giorgio. "Misura della massa del neutrino." In UNITEXT, 215–37. Milano: Springer Milan, 2008. http://dx.doi.org/10.1007/978-88-470-0804-5_8.
Full textBecker, Lidia. "Lenguaje claro/llano/ciudadano y lectura fácil: ¿nuevas variedades de comunicación digital de masas más allá del español general/común/total o internacional/neutro?" In El español, lengua pluricéntrica, 223–50. Göttingen: V&R unipress, 2019. http://dx.doi.org/10.14220/9783737009997.223.
Full textQuinayá Ocampo, Diana Patricia. "Poli(s)cromática. Variaciones sobre una ciudad de color." In CALIDOSCOPIO: Diversidad cultural y natural en Santiago de Cali, 19–47. Editorial Universidad Santiago de Cali, 2020. http://dx.doi.org/10.35985/9789585583863.1.
Full textConference papers on the topic "Massa del neutrino"
Marrone, A. "Neutrino Mass Phenomenology." In IFAE 2005: XVII Incontri de Fisica delle Alte Energie; 17th Italian Meeting on High Energy Physics. AIP, 2005. http://dx.doi.org/10.1063/1.2125653.
Full textGuedes, Blenda Úlima Rodrigues Cesar, Antonio de Pádua Santos, and Tiago Alessandro Espínola Ferreira. "Mass Determination of Black Holes from Gravitational Wave Data Using Neural Networks." In Congresso Brasileiro de Inteligência Computacional. SBIC, 2021. http://dx.doi.org/10.21528/cbic2021-91.
Full textOliveira, Welingtha Sanches De. "USO DE LODO ATIVADO PARA TRATAMENTO DE EFLUENTES DOMÉSTICOS." In II Congresso Brasileiro de Biotecnologia On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2022. http://dx.doi.org/10.51189/conbiotec/11.
Full textCroft, Stephen, Andrey Bosko, Ray Gunnink, Sasha Philips, Joe Lamontagne, Markku Koskelo, and Robert McElroy. "MGAv10: The Latest Evolution in the Multi-Group Analysis Code." In ASME 2009 12th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2009. http://dx.doi.org/10.1115/icem2009-16248.
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