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NSR database version of May 3, 2024.

Search: Author = E.Peik

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2023ST11      Phys.Rev.Lett. 131, 083002 (2023)

M.Steinel, H.Shao, M.Filzinger, B.Lipphardt, M.Brinkmann, A.Didier, T.E.Mehlstaubler, T.Lindvall, E.Peik, N.Huntemann

Evaluation of a ⁸⁸Sr⁺ Optical Clock with a Direct Measurement of the Blackbody Radiation Shift and Determination of the Clock Frequency

ATOMIC PHYSICS ¹⁷¹Yb, ⁸⁸Sr; measured frequencies ¹⁷¹Yb clock; deduced the absolute frequency of the ⁸⁸Sr clock transition.

doi: 10.1103/PhysRevLett.131.083002
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2019ME02      Phys.Rev. A 99, 0525014 (2019)

D.-M.Meier, J.Thielking, P.Glowacki, M.V.Okhapkin, R.A.Muller, A.Surzhykov, E.Peik

Electronic level structure of Th⁺ in the range of the ^229mTh isomer energy

ATOMIC PHYSICS ²³²Th; measured frequencies; deduced levels, angular momenta. Comparison with theoretical calculations.

doi: 10.1103/PhysRevA.99.052514
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2018MU12      Phys.Rev. A 98, 020503 (2018)

R.A.Muller, A.V.Maiorova, S.Fritzsche, A.V.Volotka, R.Beerwerth, P.Glowacki, J.Thielking, D.-M.Meier, M.Okhapkin, E.Peik, A.Surzhykov

Hyperfine interaction with the ²²⁹Th nucleus and its low-lying isomeric state

RADIOACTIVITY ²²⁹Th(IT); measured frequencies; deduced hyperfine spectra, magnetic dipole and electric quadrupole hyperfine constants. Comparison with theoretical calculations.

doi: 10.1103/PhysRevA.98.020503
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2018SA48      Phys.Rev.Lett. 121, 213001 (2018)

M.S.Safronova, S.G.Porsev, M.G.Kozlov, J.Thielking, M.V.Okhapkin, P.Glowacki, D.M.Meier, E.Peik

Nuclear Charge Radii of ²²⁹Th from Isotope and Isomer Shifts

NUCLEAR MOMENTS ²²⁹Th, ²³²Th; measured frequencies; deduced hyperfine structure, isotopic shift, r.m.s. radii, mean-square radius change between ²²⁹Th and its low-lying isomer ^229mTh. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.121.213001
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2018TH02      Nature(London) 556, 321 (2018)

J.Thielking, M.V.Okhapkin, P.Glowacki, D.M.Meier, L.von der Wense, B.Seiferle, C.E.Dullmann, P.G.Thirolf, E.Peik

Laser spectroscopic characterization of the nuclear-clock isomer ^229mTh

RADIOACTIVITY ²³³U(α); measured optical frequencies, recoil Eβ, Iβ; deduced optical detection of ions in the ^229mTh isomeric state and of the resolved hyperfine structure, which arises from the interaction of the isomer nucleus with the valence electrons.

doi: 10.1038/s41586-018-0011-8
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2015YA09      New Journal of Physics 17, 053053 (2015)

A.Yamaguchi, M.Kolbe, H.Kaser, T.Reichel, A.Gottwald, E.Peik

Experimental search for the low-energy nuclear transition in ²²⁹Th with undulator radiation

NUCLEAR REACTIONS ²²⁹Th(γ, γ'), E<15 eV; measured decay products, Eγ, Iγ; deduced lack of signal relating to the lowest energy nuclear isomeric transition in ²²⁹Th.

doi: 10.1088/1367-2630/17/5/053053
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2010PO09      Phys.Rev.Lett. 105, 182501 (2010)

S.G.Porsev, V.V.Flambaum, E.Peik, Chr.Tamm

Excitation of the Isomeric ^229mTh Nuclear State via an Electronic Bridge Process in ²²⁹Th⁺

RADIOACTIVITY ²²⁹Th(IT); calculated isomeric transition, energy levels, excitation probability; deduced two-photon bridge process.

doi: 10.1103/PhysRevLett.105.182501
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2003PE27      Europhys.Lett. 61, 181 (2003)

E.Peik, Chr.Tamm

Nuclear laser spectroscopy of the 3.5eV transition in Th-229

NUCLEAR STRUCTURE ²²⁹Th; analyzed laser excitation of isomeric state, possible effects on hyperfine structure. Double-resonance method.

doi: 10.1209/epl/i2003-00210-x
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