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SUMMARY:Doped cryogenic crystals for fundamental physics researches
DTSTART;VALUE=DATE-TIME:20230908T102000Z
DTEND;VALUE=DATE-TIME:20230908T104000Z
DTSTAMP;VALUE=DATE-TIME:20260811T115852Z
UID:indico-contribution-2957@indico.tlabs.ac.za
DESCRIPTION:Speakers: Marco Guarise (University of Ferrara and INFN Ferrar
 a)\nThe electron electric dipole moment (e-EDM) is a model-independent pro
 be of parity and time-reversal violation at energies beyond the ones that 
 can be reached in particle colliders. The PHYDES project is an R&D experim
 ent funded by CSN V of INFN aimed to test innovative approaches for e-EDM 
 studies. In particular\, the proposed idea is to use diatomic polar molecu
 les\, where e-EDM effects are amplified because of the large internal mole
 cular field\, embedded into cryogenic matrices made of unreactive elements
 . In such solids\, a diatomic molecule substitutes an atom of the host mat
 rix leading to a density of the host molecules as large as $10^{18}$ cm$^{
 −3}$.\n\nThe main goal of the PHYDES R&D program would be to embed Bariu
 m Fluoride (BaF) molecules in a solid matrix of para-Hydrogen (p-H2)\, to 
 study their alignment with an external electric field and to verify the as
 sumption that BaF molecules are all polarized in p-H2 matrix.\n\nThe set-u
 p we are developing to grow cryogenic crystal of around 1 cm$^3$ doped wit
 h about 100 ppm of BaF\, consists of five different modules. In the first 
 one the BaF molecues are produced\, ionized\, accelerated and focused into
  the Wien Filter chamber which is necessary for mass selection. Then the m
 olecular beam will be neutralized and cooled in order to prepare the BaF f
 or the insertion in cryogenic crystal. In parallel we are developing an op
 portune system for para-Hydrogen production and storage. Finally the last 
 chamber is the condensation chamber where p-H2 and BaF are mixed together 
 in order to form a solid crystal through the matrix isolation technique.\n
 \nThe presentation will focus on the experimental results obtained untill 
 now.\n\nhttps://indico.tlabs.ac.za/event/112/contributions/2957/
LOCATION: Meeting Room 2.64 - 2.66
URL:https://indico.tlabs.ac.za/event/112/contributions/2957/
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