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#### Editorial: 50 Years of Physical Review A, B, C, and D

###### June 11, 2020

Editor in Chief, Michael Thoennessen, celebrates the 50th anniversary of Physical Review A, B, C, and D.

#### Physical Review C 50th Anniversary Milestones

The year 2020 marks Physical Review C’s 50th anniversary. As part of the celebration, the editors are assembling a collection of milestone papers from PRC that remain central to current developments in nuclear physics.

Collection

#### Eight Journals Introduce Letters

###### March 9, 2021

At the beginning of 2021, eight Physical Review journals began publishing Letters which are intended for the accelerated publication of important new results targeted to the specific readership of each journal.

###### February 25, 2021

A new analysis of heavy-ion collision experiments uncovers evidence that two colliding nuclei behave like a Josephson junction—a device in which Cooper pairs tunnel through a barrier between two superfluids.

Viewpoint on:
G. Potel, F. Barranco, E. Vigezzi, and R. A. Broglia
Phys. Rev. C 103, L021601 (2021)

#### Fission fragment distributions and their impact on the $r$-process nucleosynthesis in neutron star mergers

Neutron star merger ejecta are currently the most viable astrophysical site for $r$-process nucleosynthesis. Fission plays a fundamental role. The manuscript presents an updated scission-point model for fission fragment distributions, which improves agreement with experimental fission yields. Two astrophysical scenarios, based on alternative weak-interaction hypotheses, are employed to reanalyze the role of fission. Regions of the nuclear chart where fission is important are identified, and the impact of fission yields on the final $r$-process abundance distribution is elaborated.

J.-F. Lemaître, S. Goriely, A. Bauswein, and H.-T. Janka
Phys. Rev. C 103, 025806 (2021)

#### Projection on particle number and angular momentum: Example of triaxial Bogoliubov quasiparticle states

The authors provide a state-of-the-art overview of projection techniques employed in beyond-mean-field many-body methods. They focus on two symmetries that are of critical importance for the description of nuclear spectroscopy, particle number, and angular momentum. The presentation covers formal aspects of symmetry restoration (group theory) and practical aspects related to numerical implementation. A number of illustrative examples are given, including cranked states in odd-$A$ nuclei.

Benjamin Bally and Michael Bender
Phys. Rev. C 103, 024315 (2021)

#### Correlation studies of fission-fragment neutron multiplicities

Describing fission as a diffusion process guided by shape-dependent microscopic level densities, the authors address how the available energy at scission is divided into shape distortion and statistical excitation. For the first time, they extract the resulting total fragment kinetic energy for various mass partitions, and study how this observable correlates with the neutron multiplicity. With increasing neutron energy a superlong fission mode appears which drastically changes the observables.

M. Albertsson et al.
Phys. Rev. C 103, 014609 (2021)

#### Finite-amplitude method for collective inertia in spontaneous fission

The finite-amplitude method is used in solving the local quasiparticle random-phase approximation to calculate the collective inertia along a fission path obtained by the constrained Hartree-Fock-Bogoliubov method with a Skyrme energy-density functional. The collective inertia obtained for the symmetric fission of ${}^{240}$Pu and ${}^{256}$Fm is considerably larger than that obtained in the cranking approximation. Including such dynamical residual effects leads to an orders of magnitude difference in the half-lives compared to those calculated using the WKB approximation.

Kouhei Washiyama, Nobuo Hinohara, and Takashi Nakatsukasa
Phys. Rev. C 103, 014306 (2021)

#### Promoting Inclusive and Respectful Communications

###### November 18, 2020

APS Editor in Chief, Michael Thoennessen, discusses a new opportunity for communicating authors to include their pronouns together with their contact email in order to promote a more respectful, inclusive, and equitable environment.

###### FEATURED IN PHYSICS

Researchers look back at key contributions to the field of nuclear physics.

Special Feature in

#### Current Issue

Vol. 103, Iss. 4 — April 2021

#### Announcements

##### APS Announces Outstanding Referees for 2021
###### February 24, 2021

APS has selected 151 Outstanding Referees for 2021 who have demonstrated exceptional work in the assessment of manuscripts published in the Physical Review journals. A full list of the Outstanding Referees is available online.

##### Rapid Communications papers will now be Letters
###### November 23, 2020

Starting January 1, 2021, the Rapid Communications article type will be renamed to Letters. With this change, all eight Physical Review journals that had previously classified articles of the type “Rapid Communications” will adopt the practice of Physical Review Applied and now publish such articles as Letters. Learn more

##### Information on SCOAP3 and Physical Review journals
###### January 3, 2018

High Energy Physics (HEP) papers published after January 1, 2018 in Physical Review Letters, Physical Review C, and Physical Review D are published open access, paid for centrally by SCOAP3. Library subscriptions will be modified accordingly. This arrangement will initially last for two years, up to the end of 2019.

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