Electron mass shift in an intense plane wave

A. Di Piazza and T. Pătuleanu
Physical Review D 104, 076003 (2021)

A digital feedback system for advanced ion manipulation techniques in Penning traps

J. Herkenhoff, M. Door, P. Filianin, W. Huang, K. Kromer, D. Lange, R. X. Schüssler, C. Schweiger, S. Eliseev, and K. Blaum
Review of Scientific Instruments 92, 103201 (2021)

Radiative and photon-exchange corrections to new-physics contributions to energy levels in few-electron ions

V. Debierre and N. S. Oreshkina
Physical Review A 104, 032825 (2021)

Mass measurements of ^99–101In challenge ab initio nuclear theory of the nuclide ¹⁰⁰Sn

M. Mougeot, D. Atanasov, J. Karthein, R. N. Wolf, P. Ascher, K. Blaum, K. Chrysalidis, G. Hagen, J. D. Holt, W. J. Huang, G. R. Jansen, I. Kulikov, Y.. A. Litvinov, D. Lunney, V. Manea, T. Miyagi, T. Papenbrock, L. Schweikhard, A. Schwenk, T. Steinsberger, S. R. Stroberg, Z. H. Sun, A. Welker, F. Wienholtz, S. G. Wilkins, and K. Zuber
Nature Physics 17, 1099-1103 (2021)

Leptogenesis and low-energy CP violation in a type-II-dominated left-right seesaw model

T. Rink, W. Rodejohann, and K. Schmitz
Nuclear Physics B 972, 115552 (2021)

Semi-secretly interacting Axion-like particle as an explanation of Fermilab muon g − 2 measurement

V. Brdar, S. Jana, J. Kubo, and M. Lindner
Physics Letters B 820, 136529 (2021)

Dark matter and nature of electroweak phase transition with an inert doublet

S. Fabian, F. Goertz, and Y. Jiang
Journal of Cosmology and Astroparticle Physics 2021, 011 (2021)

Metastable states of Si⁻ observed in a cryogenic storage ring

D. Müll, F. Grussie, K. Blaum, S. George, J. Goeck, M. Grieser, R. von Hahn, Z. Harman, Á. Kálosi, C. H. Keitel, C. Krantz, C. Lyu, O. Novotny, F. Nüsslein, D. Paul, V. C. Schmidt, S. Singh, S. Kumar, X. Urbain, A Wolf, and H. Kreckel
Physical Review A 104, 032811 (2021)

Constraints on the dense matter equation of state and neutron star properties from NICER's mass-radius estimate of PSR J0740+6620 and multimessenger observations

G. Raaijmakers, S. K. Greif, K. Hebeler, T. Hinderer, S. Nissanke, A. Schwenk, T. E. Riley, A. L. Watts, J. M. Lattimer, and W. C. G. Ho
The Astrophysical Journal Letters 918, L29 (2021)

Role of reflections in the generation of a time delay in strong-field ionization

D. Bakucz Canário, M. Klaiber, K. Z. Hatsagortsyan, and C. H. Keitel
Physical Review A 104, 033103 (2021)

Low-rank matrix decompositions for ab initio nuclear structure

A. Tichai, P. Arthuis, K. Hebeler, M. Heinz, J. Hoppe, and A. Schwenk
Physics Letters B 821, 136623 (2021)

Sympathetic cooling of a trapped proton mediated by an LC circuit

M. Bohman, V. Grunhofer, C. Smorra, M. Wiesinger, C. Will, M. J. Borchert, J. A. Devlin, S. Erlewein, M. Fleck, S. Gavranovic, J. Harrington, B. Latacz, A. Mooser, D. Popper, E. Wursten, K. Blaum, Y. Matsuda, C. Ospelkaus, W. Quint, J. Walz, and S. Ulmer
Nature 596, 514-518 (2021)

News and Views

Collisional strong-field QED kinetic equations from first principles

G. Fauth, J. Berges, and A. Di Piazza
Physical Review D 104, 036007 (2021)

Natural 2HDMs without FCNCs

J. L. Diaz-Cruz, U. J. Saldana Salazar, K. M. Tame-Narvaez, and V. Tenorth
Physical Review D 104, 035018 (2021)

Impact of the laser spatio-temporal shape on Breit–Wheeler pair production

A. Mercuri-Baron, M. Grech, F. Niel, A. Grassi, M. Lobet, A. Di Piazza, and C. Riconda
New Journal of Physics 23, 085006 (2021)

An ultralow-noise superconducting radio-frequency ion trap for frequency metrology with highly charged ions

J. Stark, C. Warnecke, S. Bogen, S. Chen, E. Dijck, S. Kühn, M. Rosner, A. Graf, J. Nauta, J. Oelmann, L. Schmöger, M. Schwarz, D. Liebert, L. J. Spieß, S. A. King, T. Leopold, P. Micke, P. O. Schmidt, T. Pfeifer, and J. R. Crespo Lopez-Urrutia
Review of Scientific Instruments 92, 083203 (2021)

The Design, Construction, and Commissioning of the KATRIN Experiment

M. Aker, K. Altenmüller, J. F. Amsbaugh, M. Arenz, M. Babutzka, J. Bast, S. Bauer, H. Bechtler, M. Beck, A. Beglarian, J. Behrens, B. Bender, R. Berendes, A. Berlev, U. Besserer, C. Bettin, B. Bieringer, K. Blaum, F. Block, S. Bobien, J. Bohn, K. Bokeloh, H. Bolz, B. Bornschein, L. Bornschein, M. Böttcher, H. Bouquet, N. M. Boyd, T. Brunst, T. H. Burritt, T. S. Caldwell, Z. Chaoui, S. Chilingaryan, W. Choi, T. J. Corona, G. A. Cox, K. Debowski, M. Deffert, M. Descher, D. D. Barrero, P. J. Doe, O. Dragoun, G. Drexlin, J. A. Dunmore, S. Dyba, F. Edzards, F. Eichelhardt, K. Eitel, E. Ellinger, R. Engel, S. Enomoto, ... and G. Zeller
Journal of Instrumentation 16, T08015 (2021)

Direct Q-Value Determination of the β⁻ Decay of ¹⁸⁷Re

P. E. Filianin, C. Lyu, M. Door, K. Blaum, W. J. Huang, M. Haverkort, P. Indelicato, C. H. Keitel, K. Kromer, D. Lange, Y. N. Novikov, A. Rischka, R. X. Schüssler, C. Schweiger, S. Sturm, S. Ulmer, Z. Harman, and S. Eliseev
Physical Review Letters 127, 072502 (2021)

MPIK press release: Important measuring method of neutrino physics on the test bench
MPIK-Pressemitteilung: Wichtige Messmethode der Neutrinophysik auf dem Prüfstand
idw press release: Important measuring method of neutrino physics on the test bench

Two-photon-exchange corrections to the g factor of Li-like ions

V. A. Yerokhin, C. H. Keitel, and Z. Harman
Physical Review A 104, 022814 (2021)

Attosecond delay lines: design, characterization and applications

A. Mandal, M. S. Sidhu, J. M. Rost, T. Pfeifer, and K. P. Singh
The European Physical Journal Special Topics 2021 (2021)