Proton-electron mass ratio from laser spectroscopy of HD+ at the part-per-trillion level

Sayan Patra; M. Germann; J. Ph Karr; M. Haidar; L. Hilico; V. I. Korobov; F. M.J. Cozijn; K. S.E. Eikema; W. Ubachs; J. C.J. Koelemeij

doi:10.1126/science.aba0453

Proton-electron mass ratio from laser spectroscopy of HD⁺ at the part-per-trillion level

Sayan Patra
, M. Germann
, J. Ph Karr
, M. Haidar
, L. Hilico
, V. I. Korobov
, F. M.J. Cozijn
, K. S.E. Eikema
, W. Ubachs
, J. C.J. Koelemeij

Research output: Contribution to Journal › Article › Academic › peer-review

279 Downloads (Pure)

Abstract

Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants such as the proton-electron and deuteron-proton mass ratios. These quantities also influence the predicted vibrational spectrum of the deuterated molecular hydrogen ion (HD+) in its electronic ground state. We used Doppler-free two-photon laser spectroscopy to measure the frequency of the v = 0→9 overtone transition (v, vibrational quantum number) of this spectrum with an uncertainty of 2.9 parts per trillion. By leveraging high-precision ab initio calculations, we converted our measurement to tight constraints on the proton-electron and deuteron-proton mass ratios, consistent with the most recent Penning trap determinations of these quantities. This results in a precision of 21 parts per trillion for the value of the proton-electron mass ratio.

Original language	English
Pages (from-to)	1238-1241
Number of pages	4
Journal	Science (New York, N.Y.)
Volume	369
Issue number	6508
DOIs	https://doi.org/10.1126/science.aba0453
Publication status	Published - 4 Sept 2020

Funding

We thank R. Kortekaas, T. Pinkert, and the Electronic Engineering Group of the Faculty of Science at Vrije Universiteit Amsterdam for technical assistance. Funding: We acknowledge support from the Netherlands Organisation for Scientific Research (FOM Programs "Broken Mirrors & Drifting Constants" and "The Mysterious Size of the Proton"; FOM 13PR3109, STW Vidi 12346), the European Research Council (AdG 670168 Ubachs, AdG 695677 Eikema), the COST Action CA17113 TIPICQA, and the Dutch-French bilateral Van Gogh program. J.-Ph.K. acknowledges support as a fellow of the Institut Universitaire de France. V.I.K. acknowledges support from the Russian Foundation for Basic Research under grant ~19-02-00058-a. Author contributions: J.C.J.K. conceived the experiment; S.P., M.G., F.M.J.C., W.U., K.S.E.E., J.C.J.K., J.-Ph.K., and L.H. designed the experiment; J.-Ph.K.,M.H., and V.I.K. developed the theory and performed numerical calculations; S.P., M.G., J.-Ph.K., M.H., L.H., and J.C.J.K. set up and performed numerical simulations for analysis of systematic effects; S.P., M.G., F.M.J.C., K.S.E.E., and J.C.J.K. built the experiment; S.P. and M.G. performed the measurements; S.P., M.G., and J.C.J.K. analyzed the data; S.P., M.G., and J.C.J.K. wrote the manuscript, with input from all other authors; and J.-Ph.K., L.H., K.S.E.E., W.U., and J.C.J.K. planned and supervised the project. Competing interests: One of the authors (J.C.J.K.) is cofounder and shareholder of OPNT bv. The authors declare no further competing interests. Data and materials availability: Computer code and experimental data used to obtain the results of the main text and supplementary materials are available from DataverseNL (https://hdl.handle.net/10411/QCCLF3).

Funders	Funder number
DataverseNL
Horizon 2020 Framework Programme	695677, 670168
European Research Council
European Cooperation in Science and Technology	CA17113
Russian Foundation for Basic Research	~19-02-00058-a
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Foundation for Fundamental Research on Matter	13PR3109
Stichting voor de Technische Wetenschappen	12346
Institut universitaire de France

Access to Document

10.1126/science.aba0453

Proton-electron mass ratio from laser spectroscopy of HD+ at the part-per-trillion levelFinal published version, 485 KBLicence: Article 25fa Dutch Copyright Act

Persistent URL (handle)

Persistent link

Cite this

@article{845375fd559f44d09760010845a5d068,

title = "Proton-electron mass ratio from laser spectroscopy of HD+ at the part-per-trillion level",

abstract = "Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants such as the proton-electron and deuteron-proton mass ratios. These quantities also influence the predicted vibrational spectrum of the deuterated molecular hydrogen ion (HD+) in its electronic ground state. We used Doppler-free two-photon laser spectroscopy to measure the frequency of the v = 0→9 overtone transition (v, vibrational quantum number) of this spectrum with an uncertainty of 2.9 parts per trillion. By leveraging high-precision ab initio calculations, we converted our measurement to tight constraints on the proton-electron and deuteron-proton mass ratios, consistent with the most recent Penning trap determinations of these quantities. This results in a precision of 21 parts per trillion for the value of the proton-electron mass ratio.",

author = "Sayan Patra and M. Germann and Karr, \{J. Ph\} and M. Haidar and L. Hilico and Korobov, \{V. I.\} and Cozijn, \{F. M.J.\} and Eikema, \{K. S.E.\} and W. Ubachs and Koelemeij, \{J. C.J.\}",

year = "2020",

month = sep,

day = "4",

doi = "10.1126/science.aba0453",

language = "English",

volume = "369",

pages = "1238--1241",

journal = "Science (New York, N.Y.)",

issn = "1095-9203",

publisher = "American Association for the Advancement of Science",

number = "6508",

}

TY - JOUR

T1 - Proton-electron mass ratio from laser spectroscopy of HD+ at the part-per-trillion level

AU - Patra, Sayan

AU - Germann, M.

AU - Karr, J. Ph

AU - Haidar, M.

AU - Hilico, L.

AU - Korobov, V. I.

AU - Cozijn, F. M.J.

AU - Eikema, K. S.E.

AU - Ubachs, W.

AU - Koelemeij, J. C.J.

PY - 2020/9/4

Y1 - 2020/9/4

N2 - Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants such as the proton-electron and deuteron-proton mass ratios. These quantities also influence the predicted vibrational spectrum of the deuterated molecular hydrogen ion (HD+) in its electronic ground state. We used Doppler-free two-photon laser spectroscopy to measure the frequency of the v = 0→9 overtone transition (v, vibrational quantum number) of this spectrum with an uncertainty of 2.9 parts per trillion. By leveraging high-precision ab initio calculations, we converted our measurement to tight constraints on the proton-electron and deuteron-proton mass ratios, consistent with the most recent Penning trap determinations of these quantities. This results in a precision of 21 parts per trillion for the value of the proton-electron mass ratio.

AB - Recent mass measurements of light atomic nuclei in Penning traps have indicated possible inconsistencies in closely related physical constants such as the proton-electron and deuteron-proton mass ratios. These quantities also influence the predicted vibrational spectrum of the deuterated molecular hydrogen ion (HD+) in its electronic ground state. We used Doppler-free two-photon laser spectroscopy to measure the frequency of the v = 0→9 overtone transition (v, vibrational quantum number) of this spectrum with an uncertainty of 2.9 parts per trillion. By leveraging high-precision ab initio calculations, we converted our measurement to tight constraints on the proton-electron and deuteron-proton mass ratios, consistent with the most recent Penning trap determinations of these quantities. This results in a precision of 21 parts per trillion for the value of the proton-electron mass ratio.

UR - https://www.scopus.com/pages/publications/85089874597

UR - https://www.scopus.com/pages/publications/85089874597#tab=citedBy

U2 - 10.1126/science.aba0453

DO - 10.1126/science.aba0453

M3 - Article

C2 - 32732278

AN - SCOPUS:85089874597

SN - 1095-9203

VL - 369

SP - 1238

EP - 1241

JO - Science (New York, N.Y.)

JF - Science (New York, N.Y.)

IS - 6508

ER -