H2020Индивидуална стипендия2017–2019

ANGRAM · Antimatter gravity measurement: How does antihydrogen fall?

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

Период: 2017-07-01 → 2019-06-30
Финансиране от ЕС: 166 157 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Антиводородът и начинът, по който той пада под влияние на гравитацията, са в центъра на това изследване. Резултатите ще помогнат да се разбере защо във Вселената има повече материя, отколкото антиматерия, и дали гравитацията действа еднакво върху двете.

Този кратък обзор е генериран от изкуствен интелект

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

Резултати накратко

Antimatter gravity measurement: How does antihydrogen fall?

Baryon asymmetry is considered to be one of the greatest unsolved problems in modern physics. One of the methods towards resolving this issue is through direct comparisons of the physics properties between matter and antimatter. This is achieved via production and study of antihydrogen, which is the only stable, neutral antimatter system available for laboratory study. This project addressed the R&D required to measure the antimatter coupling to gravity, which has never been directly measured and could greatly impact our understanding of the early history of the Universe. We proposed a new approach for measuring the sign of the gravitational acceleration for antihydrogen, i.e. to carry out a 30% measurement of g. The relevance of such statistically significant direct measurement on the hitherto unprobed property of antihydrogen is manifold. The experimental result would provide a direct test to the applicability of the Principle of Equivalence to antimatter and would validate the different theoretical predictions (e.g. quantum gravity and antigravity theories) that have led to the idea that antimatter may react with a slightly different magnitude. Ultimately, a gravity measurement for antihydrogen will reveal if gravitational interaction is the key to the matter-antimatter imbalance in the Universe and whether this is the direction for to seek for the answers of the very fundamental questions not only in physics, but also deeper philosophical questions about our mere existence.

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

Цел на проекта

Antimatter research has become a crucial sphere in the continuous attempt to understand the Universe and its laws. The only stable, neutral antimatter atom available for laboratory study is the antihydrogen. We here propose to carry out a 30% measurement of the gravitational acceleration for antihydrogen, which will reveal the sign of gravity acting on antimatter, within the next two years. The principle is based on the rotation of a three grating moiré deflectometer, coupled to a detector, and requires neither position resolution nor time-of-flight information for the through-going antihydrogen atoms. The realization of the measurement requires high quality simulations and the state-of-the art moiré deflectometer, with gratings that are able to detect the annihilating antihydrogen atoms. The project goal will be reached through a series of software and hardware developments that are part of the implementation of the three work packages defined in the proposal. The main deliverables are new, faster simulations for antihydrogen annihilation and novel technologies for instrumentation for inertial sensing and detection of antimatter. In a more general context, this project proposal addresses the very fundamental question: do matter and antimatter fall in the same way? The Weak Equivalence Principle says that they must, but our understanding of antimatter is far from complete, with the baryon asymmetry in the Universe being one of the greatest unsolved problems in physics. A successful outcome of the proposed work will accelerate the researcher's growth towards her career goal: becoming a mature experimental physicist. At the same time, the host institution will greatly expand its influence in antimatter research and will benefit from new collaborators.

Оригинален текст от CORDIS (на английски).

Участници

OESTERREICHISCHE AKADEMIE DER WISSENSCHAFTEN · WienКоординаторАвстрия