Sensitive Search for an EDM on the Electron using BaF Molecules

Thomas Meijknecht; Parul Aggarwal; Hendrick Bethlem; Anastasia Borschevsky; Quinten Alan Esajas; Pi Ariane Bresling Haase; Steven Hoekstra; Klaus-Peter Jungmann; Maarten Mooij; R.G.E. TIMMERMANS; Wim Ubachs; Lorenz Willmann; Artem Zapara

Sensitive Search for an EDM on the Electron using BaF Molecules

Thomas Meijknecht
, Parul Aggarwal
, Hendrick Bethlem
, Anastasia Borschevsky
, Quinten Alan Esajas
, Pi Ariane Bresling Haase
, Steven Hoekstra
, Klaus-Peter Jungmann
, Maarten Mooij
, R.G.E. TIMMERMANS
, Wim Ubachs
, Lorenz Willmann
, Artem Zapara

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic

Abstract

The observation of an electron electric dipole moment (eEDM) larger than the value allowed by the Standard Model (SM) of particle physics would be direct evidence of new physics. An upper limit of the eEDM constrains extensions to the SM. The barium monofluoride molecule (BaF) is an excellent system for electron EDM searches. Its structure gives rise to a large effective electric field Eeff→ experienced by the valence electron, if the molecules are polarized by an external electric field. The particular structure of BaF enables their slowing down in a Stark decelerator [1] to velocities of several 10 m/s. With the addition of laser cooling a bright and slow molecular beam can be created.
The components of the experiment, from the cryogenic source of BaF to the magnetically shielded interaction zone will be discussed and the experimental strategy will be explained. The goal of the project is a statistical limit of 5 · 10−30 e cm. At the projected precision the results of this experiment complement results in high energy physics experiments, e.g. at LHC.

[1] J.E. van den Berg, et al., J. Mol. Spec. 300, 22 (2014)

Original language	English
Title of host publication	Verhandlungen der Deutschen Physikalischen Gesellschaft
Subtitle of host publication	Erlangen 2018
Publisher	Deutsche Physikalische Gesellschaft
Volume	2018
Publication status	Published - 2018
Event	Verhandlungen der Deutschen Physicalische Gesellschaft, Erlangen, 2018 - Erlangen, Germany Duration: 4-Mar-2018 → 9-Mar-2018

Conference

Conference	Verhandlungen der Deutschen Physicalische Gesellschaft, Erlangen, 2018
Country/Territory	Germany
City	Erlangen
Period	04/03/2018 → 09/03/2018

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Meijknecht, T., Aggarwal, P., Bethlem, H., Borschevsky, A., Esajas, Q. A., Haase, P. A. B., Hoekstra, S., Jungmann, K.-P., Mooij, M., TIMMERMANS, R. G. E., Ubachs, W., Willmann, L., & Zapara, A. (2018). Sensitive Search for an EDM on the Electron using BaF Molecules. In Verhandlungen der Deutschen Physikalischen Gesellschaft: Erlangen 2018 (Vol. 2018). Article MO 17.8 Deutsche Physikalische Gesellschaft. https://www.dpg-verhandlungen.de/year/2018/conference/erlangen/parts?lang=de

@inproceedings{ffc420635e674e8a96f04e408d9cf8c9,

title = "Sensitive Search for an EDM on the Electron using BaF Molecules",

abstract = "The observation of an electron electric dipole moment (eEDM) larger than the value allowed by the Standard Model (SM) of particle physics would be direct evidence of new physics. An upper limit of the eEDM constrains extensions to the SM. The barium monofluoride molecule (BaF) is an excellent system for electron EDM searches. Its structure gives rise to a large effective electric field Eeff→ experienced by the valence electron, if the molecules are polarized by an external electric field. The particular structure of BaF enables their slowing down in a Stark decelerator [1] to velocities of several 10 m/s. With the addition of laser cooling a bright and slow molecular beam can be created. The components of the experiment, from the cryogenic source of BaF to the magnetically shielded interaction zone will be discussed and the experimental strategy will be explained. The goal of the project is a statistical limit of 5 · 10−30 e cm. At the projected precision the results of this experiment complement results in high energy physics experiments, e.g. at LHC. [1] J.E. van den Berg, et al., J. Mol. Spec. 300, 22 (2014) ",

author = "Thomas Meijknecht and Parul Aggarwal and Hendrick Bethlem and Anastasia Borschevsky and Esajas, \{Quinten Alan\} and Haase, \{Pi Ariane Bresling\} and Steven Hoekstra and Klaus-Peter Jungmann and Maarten Mooij and R.G.E. TIMMERMANS and Wim Ubachs and Lorenz Willmann and Artem Zapara",

year = "2018",

language = "English",

volume = "2018",

booktitle = "Verhandlungen der Deutschen Physikalischen Gesellschaft",

publisher = "Deutsche Physikalische Gesellschaft",

note = "Verhandlungen der Deutschen Physicalische Gesellschaft, Erlangen, 2018 ; Conference date: 04-03-2018 Through 09-03-2018",

}

Meijknecht, T, Aggarwal, P, Bethlem, H , Borschevsky, A, Esajas, QA, Haase, PAB, Hoekstra, S , Jungmann, K-P, Mooij, M, TIMMERMANS, RGE, Ubachs, W, Willmann, L & Zapara, A 2018, Sensitive Search for an EDM on the Electron using BaF Molecules. in Verhandlungen der Deutschen Physikalischen Gesellschaft: Erlangen 2018. vol. 2018, MO 17.8, Deutsche Physikalische Gesellschaft, Verhandlungen der Deutschen Physicalische Gesellschaft, Erlangen, 2018, Erlangen, Germany, 04/03/2018. <https://www.dpg-verhandlungen.de/year/2018/conference/erlangen/parts?lang=de>

TY - GEN

T1 - Sensitive Search for an EDM on the Electron using BaF Molecules

AU - Meijknecht, Thomas

AU - Aggarwal, Parul

AU - Bethlem, Hendrick

AU - Borschevsky, Anastasia

AU - Esajas, Quinten Alan

AU - Haase, Pi Ariane Bresling

AU - Hoekstra, Steven

AU - Jungmann, Klaus-Peter

AU - Mooij, Maarten

AU - TIMMERMANS, R.G.E.

AU - Ubachs, Wim

AU - Willmann, Lorenz

AU - Zapara, Artem

PY - 2018

Y1 - 2018

N2 - The observation of an electron electric dipole moment (eEDM) larger than the value allowed by the Standard Model (SM) of particle physics would be direct evidence of new physics. An upper limit of the eEDM constrains extensions to the SM. The barium monofluoride molecule (BaF) is an excellent system for electron EDM searches. Its structure gives rise to a large effective electric field Eeff→ experienced by the valence electron, if the molecules are polarized by an external electric field. The particular structure of BaF enables their slowing down in a Stark decelerator [1] to velocities of several 10 m/s. With the addition of laser cooling a bright and slow molecular beam can be created. The components of the experiment, from the cryogenic source of BaF to the magnetically shielded interaction zone will be discussed and the experimental strategy will be explained. The goal of the project is a statistical limit of 5 · 10−30 e cm. At the projected precision the results of this experiment complement results in high energy physics experiments, e.g. at LHC. [1] J.E. van den Berg, et al., J. Mol. Spec. 300, 22 (2014)

AB - The observation of an electron electric dipole moment (eEDM) larger than the value allowed by the Standard Model (SM) of particle physics would be direct evidence of new physics. An upper limit of the eEDM constrains extensions to the SM. The barium monofluoride molecule (BaF) is an excellent system for electron EDM searches. Its structure gives rise to a large effective electric field Eeff→ experienced by the valence electron, if the molecules are polarized by an external electric field. The particular structure of BaF enables their slowing down in a Stark decelerator [1] to velocities of several 10 m/s. With the addition of laser cooling a bright and slow molecular beam can be created. The components of the experiment, from the cryogenic source of BaF to the magnetically shielded interaction zone will be discussed and the experimental strategy will be explained. The goal of the project is a statistical limit of 5 · 10−30 e cm. At the projected precision the results of this experiment complement results in high energy physics experiments, e.g. at LHC. [1] J.E. van den Berg, et al., J. Mol. Spec. 300, 22 (2014)

M3 - Conference contribution

VL - 2018

BT - Verhandlungen der Deutschen Physikalischen Gesellschaft

PB - Deutsche Physikalische Gesellschaft

T2 - Verhandlungen der Deutschen Physicalische Gesellschaft, Erlangen, 2018

Y2 - 4 March 2018 through 9 March 2018

ER -

Sensitive Search for an EDM on the Electron using BaF Molecules

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