Constraining P and T violating forces with chiral molecules

New sources of parity and time-reversal violation are predicted by well motivated extensions of the Standard Model and can be effectively probed by precision spectroscopy of atoms and molecules. Chiral molecules have distinguished enantiomers which are related by parity transformation. Thus they are...

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Main Authors: Chaja Baruch, P. Bryan Changala, Yuval Shagam, Yotam Soreq
Format: Article
Language:English
Published: American Physical Society 2024-11-01
Series:Physical Review Research
Online Access:http://doi.org/10.1103/PhysRevResearch.6.043115
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author Chaja Baruch
P. Bryan Changala
Yuval Shagam
Yotam Soreq
author_facet Chaja Baruch
P. Bryan Changala
Yuval Shagam
Yotam Soreq
author_sort Chaja Baruch
collection DOAJ
description New sources of parity and time-reversal violation are predicted by well motivated extensions of the Standard Model and can be effectively probed by precision spectroscopy of atoms and molecules. Chiral molecules have distinguished enantiomers which are related by parity transformation. Thus they are promising candidates to search for parity violation at molecular scales, which has yet to be observed. In this work, we show that precision spectroscopy of the hyperfine structure of chiral molecules is sensitive to new physics sources of parity and time-reversal violation. In particular, such a study can be sensitive to regions unexplored by terrestrial experiments of a new chiral spin-1 particle that couples to nucleons. We explore the potential to hunt for time-reversal violation in chiral molecules and show that it can be a complementary measurement to other probes. We assess the feasibility of such hyperfine metrology and project the sensitivity in CHDBrI^{+}.
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spelling doaj-art-25213a85de124adea02a6c6b6d464dfc2025-08-20T02:12:46ZengAmerican Physical SocietyPhysical Review Research2643-15642024-11-016404311510.1103/PhysRevResearch.6.043115Constraining P and T violating forces with chiral moleculesChaja BaruchP. Bryan ChangalaYuval ShagamYotam SoreqNew sources of parity and time-reversal violation are predicted by well motivated extensions of the Standard Model and can be effectively probed by precision spectroscopy of atoms and molecules. Chiral molecules have distinguished enantiomers which are related by parity transformation. Thus they are promising candidates to search for parity violation at molecular scales, which has yet to be observed. In this work, we show that precision spectroscopy of the hyperfine structure of chiral molecules is sensitive to new physics sources of parity and time-reversal violation. In particular, such a study can be sensitive to regions unexplored by terrestrial experiments of a new chiral spin-1 particle that couples to nucleons. We explore the potential to hunt for time-reversal violation in chiral molecules and show that it can be a complementary measurement to other probes. We assess the feasibility of such hyperfine metrology and project the sensitivity in CHDBrI^{+}.http://doi.org/10.1103/PhysRevResearch.6.043115
spellingShingle Chaja Baruch
P. Bryan Changala
Yuval Shagam
Yotam Soreq
Constraining P and T violating forces with chiral molecules
Physical Review Research
title Constraining P and T violating forces with chiral molecules
title_full Constraining P and T violating forces with chiral molecules
title_fullStr Constraining P and T violating forces with chiral molecules
title_full_unstemmed Constraining P and T violating forces with chiral molecules
title_short Constraining P and T violating forces with chiral molecules
title_sort constraining p and t violating forces with chiral molecules
url http://doi.org/10.1103/PhysRevResearch.6.043115
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AT pbryanchangala constrainingpandtviolatingforceswithchiralmolecules
AT yuvalshagam constrainingpandtviolatingforceswithchiralmolecules
AT yotamsoreq constrainingpandtviolatingforceswithchiralmolecules