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Probing Physics beyond the Standard Model from Molecules

Publications

Dissociation Energy of the Hydrogen Molecule at 10 − 9 Accuracy

Author(s): C.-F. Cheng, J. Hussels, M. Niu, H. L. Bethlem, K. S. E. Eikema, E. J. Salumbides, W. Ubachs, M. Beyer, N. Hölsch, J. A. Agner, F. Merkt, L.-G. Tao, S.-M. Hu, Ch. Jungen
Published in: Physical Review Letters, Issue 121/1, 2018, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.121.013001

Relativistic and QED Effects in the Fundamental Vibration of T 2

Author(s): T. Madhu Trivikram, M. Schlösser, W. Ubachs, E. J. Salumbides
Published in: Physical Review Letters, Issue 120/16, 2018, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.120.163002

Search for Varying Constants of Nature from Astronomical Observation of Molecules

Author(s): Wim Ubachs
Published in: Space Science Reviews, Issue 214/1, 2018, ISSN 0038-6308
DOI: 10.1007/s11214-017-0432-y

Rayleigh–Brillouin light scattering spectroscopy of nitrous oxide (N 2 O)

Author(s): Y. Wang, K. Liang, W. van de Water, W. Marques, W. Ubachs
Published in: Journal of Quantitative Spectroscopy and Radiative Transfer, Issue 206, 2018, Page(s) 63-69, ISSN 0022-4073
DOI: 10.1016/j.jqsrt.2017.10.029

Sub-Doppler Frequency Metrology in HD for Tests of Fundamental Physics

Author(s): F. M. J. Cozijn, P. Dupré, E. J. Salumbides, K. S. E. Eikema, W. Ubachs
Published in: Physical Review Letters, Issue 120/15, 2018, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.120.153002

Testing the variability of the proton-to-electron mass ratio from observations of methanol in the dark cloud core L1498

Author(s): M. Daprà, C. Henkel, S. A. Levshakov, K. M. Menten, S. Muller, H. L. Bethlem, S. Leurini, A. V. Lapinov, W. Ubachs
Published in: Monthly Notices of the Royal Astronomical Society, Issue 472/4, 2017, Page(s) 4434-4443, ISSN 0035-8711
DOI: 10.1093/mnras/stx2308

CARS spectroscopy of the $(v=0 \rightarrow 1)$ band in ${{{\rm{T}}}_{2}}_{}$

Author(s): M Schlösser, X Zhao, M Trivikram, W Ubachs, E J Salumbides
Published in: Journal of Physics B: Atomic, Molecular and Optical Physics, Issue 50/21, 2017, Page(s) 214004, ISSN 0953-4075
DOI: 10.1088/1361-6455/aa8d80

Constraint on a varying proton-to-electron mass ratio from H 2 and HD absorption at z abs ≃ 2.34

Author(s): M. Daprà, M. van der Laan, M. T. Murphy, W. Ubachs
Published in: Monthly Notices of the Royal Astronomical Society, Issue 465/4, 2016, Page(s) 4057-4073, ISSN 0035-8711
DOI: 10.1093/mnras/stw3003

Plasma Propulsion of a Metallic Microdroplet and its Deformation upon Laser Impact

Author(s): Dmitry Kurilovich, Alexander L. Klein, Francesco Torretti, Adam Lassise, Ronnie Hoekstra, Wim Ubachs, Hanneke Gelderblom, Oscar O. Versolato
Published in: Physical Review Applied, Issue 6/1, 2016, ISSN 2331-7019
DOI: 10.1103/PhysRevApplied.6.014018

Analysis of the fine structure of Sn 11 + – Sn 14 +

Author(s): A. Windberger, F. Torretti, A. Borschevsky, A. Ryabtsev, S. Dobrodey, H. Bekker, E. Eliav, U. Kaldor, W. Ubachs, R. Hoekstra, J. R. Crespo López-Urrutia, O. O. Versolato
Published in: Physical Review A, Issue 94/1, 2016, ISSN 2469-9926
DOI: 10.1103/PhysRevA.94.012506

Spectroscopic Survey of Electronic Transitions of C 6 H, 13 C 6 H, and C 6 D

Author(s): Xavier Bacalla, Edcel J. Salumbides, Harold Linnartz, Wim Ubachs, Dongfeng Zhao
Published in: The Journal of Physical Chemistry A, Issue 120/32, 2016, Page(s) 6402-6417, ISSN 1089-5639
DOI: 10.1021/acs.jpca.6b06647

Rayleigh-Brillouin scattering in SF6 in the kinetic regime

Author(s): Yuanqing Wang, Yin Yu, Kun Liang, Wilson Marques, Willem van de Water, Wim Ubachs
Published in: Chemical Physics Letters, Issue 669, 2017, Page(s) 137-142, ISSN 0009-2614
DOI: 10.1016/j.cplett.2016.12.033

Ion distribution and ablation depth measurements of a fs-ps laser-irradiated solid tin target

Author(s): M. J. Deuzeman, A. S. Stodolna, E. E. B. Leerssen, A. Antoncecchi, N. Spook, T. Kleijntjens, J. Versluis, S. Witte, K. S. E. Eikema, W. Ubachs, R. Hoekstra, O. O. Versolato
Published in: Journal of Applied Physics, Issue 121/10, 2017, Page(s) 103301, ISSN 0021-8979
DOI: 10.1063/1.4977854

Optical spectroscopy of complex open- 4 d -shell ions Sn 7 + –

Author(s): F. Torretti, A. Windberger, A. Ryabtsev, S. Dobrodey, H. Bekker, W. Ubachs, R. Hoekstra, E. V. Kahl, J. C. Berengut, J. R. Crespo López-Urrutia, O. O. Versolato
Published in: Physical Review A, Issue 95/4, 2017, ISSN 2469-9926
DOI: 10.1103/PhysRevA.95.042503

${{{\rm{C}}}_{60}}^{+}$ and the Diffuse Interstellar Bands: An Independent Laboratory Check

Author(s): Steffen Spieler, Martin Kuhn, Johannes Postler, Malcolm Simpson, Roland Wester, Paul Scheier, Wim Ubachs, Xavier Bacalla, Jordy Bouwman, Harold Linnartz
Published in: The Astrophysical Journal, Issue 846/2, 2017, Page(s) 168, ISSN 1538-4357
DOI: 10.3847/1538-4357/aa82bc

Power-law scaling of plasma pressure on laser-ablated tin microdroplets

Author(s): Dmitry Kurilovich, Mikhail M. Basko, Dmitrii A. Kim, Francesco Torretti, Ruben Schupp, Jim C. Visschers, Joris Scheers, Ronnie Hoekstra, Wim Ubachs, Oscar O. Versolato
Published in: Physics of Plasmas, Issue 25/1, 2018, Page(s) 012709, ISSN 1070-664X
DOI: 10.1063/1.5010899

Short-wavelength out-of-band EUV emission from Sn laser-produced plasma

Author(s): F Torretti, R Schupp, D Kurilovich, A Bayerle, J Scheers, W Ubachs, R Hoekstra, O O Versolato
Published in: Journal of Physics B: Atomic, Molecular and Optical Physics, Issue 51/4, 2018, Page(s) 045005, ISSN 0953-4075
DOI: 10.1088/1361-6455/aaa593

Sn ion energy distributions of ns- and ps-laser produced plasmas

Author(s): A Bayerle, M J Deuzeman, S van der Heijden, D Kurilovich, T de Faria Pinto, A Stodolna, S Witte, K S E Eikema, W Ubachs, R Hoekstra, O O Versolato
Published in: Plasma Sources Science and Technology, Issue 27/4, 2018, Page(s) 045001, ISSN 1361-6595
DOI: 10.1088/1361-6595/aab533

Probing the Gravitational Dependence of the Fine-Structure Constant from Observations of White Dwarf Stars

Author(s): Matthew Bainbridge, Martin Barstow, Nicole Reindl, W.-Ü Tchang-Brillet, Thomas Ayres, John Webb, John Barrow, Jiting Hu, Jay Holberg, Simon Preval, Wim Ubachs, Vladimir Dzuba, Victor Flambaum, Vincent Dumont, Julian Berengut
Published in: Universe, Issue 3/2, 2017, Page(s) 32, ISSN 2218-1997
DOI: 10.3390/universe3020032

Analysis of carbon monoxide absorption at zabs ≃ 2.5 to constrain variation of the proton-to-electron mass ratio

Author(s): M. Daprà, P. Noterdaeme, M. Vonk, M. T. Murphy, W. Ubachs
Published in: Monthly Notices of the Royal Astronomical Society, Issue 467/4, 2017, Page(s) 3848-3855, ISSN 0035-8711
DOI: 10.1093/mnras/stx331

Fourier-transform spectroscopy of 13C17O and deperturbation analysis of the A1Π (υ=0–3) levels

Author(s): R. Hakalla, M.L. Niu, R.W. Field, A.N. Heays, E.J. Salumbides, G. Stark, J.R. Lyons, M. Eidelsberg, J.L. Lemaire, S.R. Federman, N. de Oliveira, W. Ubachs
Published in: Journal of Quantitative Spectroscopy and Radiative Transfer, Issue 189, 2017, Page(s) 312-328, ISSN 0022-4073
DOI: 10.1016/j.jqsrt.2016.12.012

High-precision spectroscopy of the HD+ molecule at the 1-p.p.b. level

Author(s): J. Biesheuvel, J.-Ph. Karr, L. Hilico, K. S. E. Eikema, W. Ubachs, J. C. J. Koelemeij
Published in: Applied Physics B, Issue 123/1, 2017, ISSN 0946-2171
DOI: 10.1007/s00340-016-6576-8

Discovery of a Perseus-like cloud in the early Universe

Author(s): P. Noterdaeme, J.-K. Krogager, S. Balashev, J. Ge, N. Gupta, T. Krühler, C. Ledoux, M. T. Murphy, I. Pâris, P. Petitjean, H. Rahmani, R. Srianand, W. Ubachs
Published in: Astronomy & Astrophysics, Issue 597, 2017, Page(s) A82, ISSN 0004-6361
DOI: 10.1051/0004-6361/201629173

A testing time for antimatter

Author(s): W. Ubachs
Published in: Science, Issue 354/6312, 2016, Page(s) 546-547, ISSN 0036-8075
DOI: 10.1126/science.aah6215

Precision measurements and test of molecular theory in highly excited vibrational states of H2 (v = 11)

Author(s): T. Madhu Trivikram, M. L. Niu, P. Wcisło, W. Ubachs, E. J. Salumbides
Published in: Applied Physics B, Issue 122/12, 2016, ISSN 0946-2171
DOI: 10.1007/s00340-016-6570-1

Molecular Fountain

Author(s): Cunfeng Cheng, Aernout P. P. van der Poel, Paul Jansen, Marina Quintero-Pérez, Thomas E. Wall, Wim Ubachs, Hendrick L. Bethlem
Published in: Physical Review Letters, Issue 117/25, 2016, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.117.253201

Colloquium : Search for a drifting proton-electron mass ratio from H 2

Author(s): W. Ubachs, J. Bagdonaite, E. J. Salumbides, M. T. Murphy, L. Kaper
Published in: Reviews of Modern Physics, Issue 88/2, 2016, ISSN 0034-6861
DOI: 10.1103/RevModPhys.88.021003

Spectroscopy and perturbation analysis of the A 1 π (v=0) state of 13 C 16 O

Author(s): M. L. Niu, R. Hakalla, T. Madhu Trivikram, A. N. Heays, N. de Oliveira, E. J. Salumbides, W. Ubachs
Published in: Molecular Physics, Issue 114/19, 2016, Page(s) 2857-2867, ISSN 0026-8976
DOI: 10.1080/00268976.2016.1218078

Physics beyond the Standard Model from hydrogen spectroscopy

Author(s): W. Ubachs, J.C.J. Koelemeij, K.S.E. Eikema, E.J. Salumbides
Published in: Journal of Molecular Spectroscopy, Issue 320, 2016, Page(s) 1-12, ISSN 0022-2852
DOI: 10.1016/j.jms.2015.12.003

VIS and VUV spectroscopy of 12 C 17 O and deperturbation analysis of the A 1 Π, υ = 1–5 levels

Author(s): R. Hakalla, M. L. Niu, R. W. Field, E. J. Salumbides, A. N. Heays, G. Stark, J. R. Lyons, M. Eidelsberg, J. L. Lemaire, S. R. Federman, M. Zachwieja, W. Szajna, P. Kolek, I. Piotrowska, M. Ostrowska-Kopeć, R. Kępa, N. de Oliveira, W. Ubachs
Published in: RSC Adv., Issue 6/38, 2016, Page(s) 31588-31606, ISSN 2046-2069
DOI: 10.1039/C6RA01358A

CONSTRAINT ON A COSMOLOGICAL VARIATION IN THE PROTON-TO-ELECTRON MASS RATIO FROM ELECTRONIC CO ABSORPTION

Author(s): M. Daprà, M. L. Niu, E. J. Salumbides, M. T. Murphy, W. Ubachs
Published in: The Astrophysical Journal, Issue 826/2, 2016, Page(s) 192, ISSN 1538-4357
DOI: 10.3847/0004-637X/826/2/192

The excited J = 0 1 Σ u

Author(s): M. Glass-Maujean, Ch. Jungen, G.D. Dickenson, N. de Oliveira, W. Ubachs
Published in: Journal of Molecular Spectroscopy, Issue 320, 2016, Page(s) 33-38, ISSN 0022-2852
DOI: 10.1016/j.jms.2016.01.002

Probing QED and fundamental constants through laser spectroscopy of vibrational transitions in HD+

Author(s): J. Biesheuvel, J.-Ph. Karr, L. Hilico, K. S. E. Eikema, W. Ubachs, J. C. J. Koelemeij
Published in: Nature Communications, Issue 7, 2016, Page(s) 10385, ISSN 2041-1723
DOI: 10.1038/ncomms10385

Constraint on a varying proton-to-electron mass ratio from molecular hydrogen absorption towards quasar SDSS J123714.60+064759.5

Author(s): M. Daprà, J. Bagdonaite, M. T. Murphy, W. Ubachs
Published in: Monthly Notices of the Royal Astronomical Society, Issue 454/1, 2015, Page(s) 489-506, ISSN 0035-8711
DOI: 10.1093/mnras/stv1998

Spectroscopy and perturbation analysis of the CO A 1 Π −X 1 Σ + (2,0), (3,0) and (4,0) bands

Author(s): M. L. Niu, E. J. Salumbides, A. N. Heays, N. de Oliveira, R. W. Field, W. Ubachs
Published in: Molecular Physics, Issue 114/5, 2015, Page(s) 627-636, ISSN 0026-8976
DOI: 10.1080/00268976.2015.1108472

Communication: Test of quantum chemistry in vibrationally hot hydrogen molecules

Author(s): M. L. Niu, E. J. Salumbides, W. Ubachs
Published in: The Journal of Chemical Physics, Issue 143/8, 2015, Page(s) 081102, ISSN 0021-9606
DOI: 10.1063/1.4929568

Constraints on extra dimensions from precision molecular spectroscopy

Author(s): E J Salumbides, A N Schellekens, B Gato-Rivera, W Ubachs
Published in: New Journal of Physics, Issue 17/3, 2015, Page(s) 033015, ISSN 1367-2630
DOI: 10.1088/1367-2630/17/3/033015

Constraint on a Varying Proton-Electron Mass Ratio 1.5 Billion Years after the Big Bang

Author(s): J. Bagdonaite, W. Ubachs, M. T. Murphy, J. B. Whitmore
Published in: Physical Review Letters, Issue 114/7, 2015, ISSN 0031-9007
DOI: 10.1103/PhysRevLett.114.071301