UCEEDM · Ultracold YbF molecules to measure the electron's electric dipole moment.
„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“
- Период
- 2020-06-01 → 2022-05-31
- Финансиране от ЕС
- 212 934 €
- Участници
- 1
- Схема
- MSCA-IF
Линиите свързват координатора с партньорите.
Накратко на български
Електрическият диполен момент на електрона се измерва чрез ултрастудени молекули от иттербий и флуор. Това помага да се проверят теории за нови сили и причините за разликата между материята и антиматерията във Вселената.
Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.
Резултати накратко
Ultracold YbF molecules to measure the electron's electric dipole moment.
The purpose of this fellowship was to build an instrument for measuring the electron's electric dipole moment (eEDM) with a precision better than 10^30 e cm, with a longer term prospect of reaching below 10^31 e cm. This measurement will test new theories beyond the Standard Model (BSM) of particle physics and search for the undiscovered forces responsible for the observed asymmetry between matter and anti-matter in the Universe. Many BSM theories introducing new CP violating interactions to account for this asymmetry predict an eEDM many order of magnitude larger than in the standard model.
Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз
Цел на проекта
The project aims to show that the electron's electric dipole moment (eEDM) could be measured with an unprecedented precision of 10^{-31} e cm by using ultracold polar molecules. Such a measurement would be a demanding test of theories beyond the Standard Model of particle physics, and a search for the undiscovered forces responsible for the observed asymmetry between matter and anti-matter in the Universe. The key advance that will unlock this extraordinary sensitivity is interferometry with molecules cooled to ultracold temperature. I will make an intense, slow-moving beam of YbF molecules, which are known to be exceptionally sensitive to the eEDM. I will then apply laser cooling in both transverse directions to bring the temperature below 50 microkelvin, yielding a highly-collimated molecular beam. Next, I will build a spin interferometer using these ultracold molecules. Finally, by paying careful attention to noise sources, especially magnetic field noise, I will show that the interferometer can reach the sensitivity set by the quantum projection noise. Laser cooling of molecules is a new technique, and I will be the first to use it to enhance the sensitivity of a measurement that tests fundamental physics.
Оригинален текст от CORDIS (на английски).
Участници
- IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE · LondonКоординаторОбединеното кралство
Връзки
Данни: CORDIS, © Европейски съюз