H2020Индивидуална стипендия2021–2023

LightForNuLAND · Scintillation Light For New Physics with Liquid Argon Neutrino Detectors

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2021-09-01 → 2023-08-31
Финансиране от ЕС: 172 932 €
Участници: 1
Схема: MSCA-IF

Линиите свързват координатора с партньорите.

Накратко на български

Тежките неутрални лептони се търсят чрез анализ на светлината в детектори с течен аргон. Това помага да се разбере защо неутриното има толкова малка маса и как материята е надвладяла антиматерията във Вселената.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Scintillation Light For New Physics with Liquid Argon Neutrino Detectors

Neutrinos are the second most abundant known particle in the Universe but our understanding about them is still lacking many important neutrino properties. One of the most intriguing mysteries is their tiny mass, which is at least a million times lighter than an electron. A possible explanation for such a small value is the existence of new heavier particles known as heavy neutral leptons (HNLs for short), which are connected to the neutrinos like in a seesaw, making the neutrinos masses appear very light. The mass of the HNLs can take a large range of values, and therefore they must be sought in different experiments sensitive to different mass values. The liquid argon (LAr) detector is a technology that has gained relevance because it has been selected for the future DUNE experiment that will investigate other mysteries such as if neutrinos and antineutrinos behave differently as they propagate, which could be connected to the dominance of matter over antimatter in our Universe. In this project we proposed to use SBND, a LAr detector located very close to the origin of the Booster Neutrino Beam at Fermilab, to search for HNLs and advance our expertise with this technology. The overall objectives were 1) contribute to the data acquisition of the scintillating light produced in LAr when the particles excite it, 2) develop the simulation and analysis of this light which is used to reject fake signals that mimic the HNL signature, 3) develop the search for HNLs in SBND. Through this research program, the fellow was trained in LAr scintillation light in which the CIEMAT Neutrino Group is a reference, and the fellow was reintegrated in the European Union, becoming an independent researcher and bringing his previous expertise in LAr detectors and Beyond Standard Model physics to the host.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

Neutrino Physics is one of the areas of Particle Physics with the highest potential for discoveries. DUNE, a long-baseline neutrino-oscillation experiment, will study the neutrino mass ordering and the charge-parity violation in the next decade using liquid argon time projection chamber (LArTPC) detectors. Until DUNE begins, the only opportunity to study actual neutrino interactions in LArTPCs is the Short-Baseline Neutrino (SBN) Program at Fermilab. SBND, the near detector of the SBN Program, will collect the largest statistics of neutrino interactions, enabling the resolution of anomalies which could be caused by additional neutrinos, cross-section measurements in many relevant channels for SBN and DUNE, and Beyond-Standard-Model (BSM) searches. The goal of this fellowship is for Dr Crespo to make a high-visibility contribution to SBND at CIEMAT. Specifically, the objectives are 1) commission the data acquisition and trigger systems of SBND, a critical contribution to the experiment; 2) develop the simulation and reconstruction of scintillation light in the detector, which is crucial for the cosmic-ray background rejection in a near-surface experiment like SBND; 3) develop a search for BSM Heavy Neutral Leptons, which could explain the smallness of the neutrino mass, using the Fermilab neutrino beam. Dr Crespo will receive first-hand training by the CIEMAT group, which has broad experience in simulating and reconstructing scintillation light in LArTPCs, and led this work for one of the DUNE prototypes. The supervisor, Dr Gil-Botella, is the Leader of the Far Detector Dual-Phase Photon-Detection System for DUNE. Dr Crespo will strengthen the CIEMAT contribution to SBND. He is a member of SBND since 2015, and is an expert in the readout and trigger systems, and the Co-Convener of Astroparticle and Exotic Physics in MicroBooNE, another SBN experiment. This project will reintegrate Dr Crespo in the EU, bringing his expertise, and fostering EU and US collaboration.

Оригинален текст от CORDIS (на английски).

Участници

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