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Nuclear density functional theory provides a unified description of finite nuclei and bulk nuclear matter, and is widely used to model the neutron star equation of state. However, extrapolations to supra-saturation densities require a…

This work reports a precise measurement of the reactor antineutrino flux using 2.2 million inverse beta decay (IBD) events collected with the Daya Bay near detectors in 1230 days. The dominant uncertainty on the neutron detection efficiency…

High Energy Physics - Experiment · Physics 2019-09-18 Daya Bay Collaboration , D. Adey , F. P. An , A. B. Balantekin , H. R. Band , M. Bishai , S. Blyth , D. Cao , G. F. Cao , J. Cao , Y. L. Chan , J. F. Chang , Y. Chang , H. S. Chen , S. M. Chen , Y. Chen , Y. X. Chen , J. Cheng , Z. K. Cheng , J. J. Cherwinka , M. C. Chu , A. Chukanov , J. P. Cummings , F. S. Deng , Y. Y. Ding , M. V. Diwan , M. Dolgareva , J. Dove , D. A. Dwyer , W. R. Edwards , M. Gonchar , G. H. Gong , H. Gong , W. Q. Gu , L. Guo , X. H. Guo , Y. H. Guo , Z. Guo , R. W. Hackenburg , S. Hans , M. He , K. M. Heeger , Y. K. Heng , A. Higuera , Y. B. Hsiung , B. Z. Hu , T. Hu , Z. J. Hu , H. X. Huang , X. T. Huang , Y. B. Huang , P. Huber , W. Huo , G. Hussain , D. E. Jaffe , K. L. Jen , X. L. Ji , X. P. Ji , R. A. Johnson , D. Jones , L. Kang , S. H. Kettell , L. W. Koerner , S. Kohn , M. Kramer , T. J. Langford , L. Lebanowski , J. Lee , J. H. C. Lee , R. T. Lei , R. Leitner , J. K. C. Leung , C. Li , F. Li , H. L. Li , Q. J. Li , S. Li , S. C. Li , S. J. Li , W. D. Li , X. N. Li , X. Q. Li , Y. F. Li , Z. B. Li , H. Liang , C. J. Lin , G. L. Lin , S. Lin , S. K. Lin , Y. -C. Lin , J. J. Ling , J. M. Link , L. Littenberg , B. R. Littlejohn , J. C. Liu , J. L. Liu , Y. Liu , Y. H. Liu , C. W. Loh , C. Lu , H. Q. Lu , J. S. Lu , K. B. Luk , X. B. Ma , X. Y. Ma , Y. Q. Ma , Y. Malyshkin , C. Marshall , D. A. Martinez Caicedo , K. T. McDonald , R. D. McKeown , I. Mitchell , L. Mora Lepin , J. Napolitano , D. Naumov , E. Naumova , J. P. Ochoa-Ricoux , A. Olshevskiy , H. -R. Pan , J. Park , S. Patton , V. Pec , J. C. Peng , L. Pinsky , C. S. J. Pun , F. Z. Qi , M. Qi , X. Qian , R. M. Qiu , N. Raper , J. Ren , R. Rosero , B. Roskovec , X. C. Ruan , H. Steiner , J. L. Sun , K. Treskov , W. -H. Tse , C. E. Tull , B. Viren , V. Vorobel , C. H. Wang , J. Wang , M. Wang , N. Y. Wang , R. G. Wang , W. Wang , W. Wang , X. Wang , Y. F. Wang , Z. Wang , Z. Wang , Z. M. Wang , H. Y. Wei , L. H. Wei , L. J. Wen , K. Whisnant , C. G. White , T. Wise , H. L. H. Wong , S. C. F. Wong , E. orcester , Q. Wu , W. J. Wu , D. M. Xia , Z. Z. Xing , J. L. Xu , T. Xue , C. G. Yang , H. Yang , L. Yang , M. S. Yang , M. T. Yang , Y. Z. Yang , M. Ye , M. Yeh , B. L. Young , H. Z. Yu , Z. Y. Yu , B. B. Yue , S. Zeng , L. Zhan , C. Zhang , C. C. Zhang , F. Y. Zhang , H. H. Zhang , J. W. Zhang , Q. M. Zhang , R. Zhang , X. F. Zhang , X. T. Zhang , Y. M. Zhang , Y. M. Zhang , Y. X. Zhang , Y. Y. Zhang , Z. J. Zhang , Z. P. Zhang , Z. Y. Zhang , J. Zhao , P. Zheng , L. Zhou , H. L. Zhuang , J. H. Zou

The results of systematic calculations of isospin-symmetry-breaking corrections to superallowed beta-decays based on the self-consistent isospin- and angular-momentum-projected nuclear density functional theory (DFT) are reviewed with an…

Nuclear Theory · Physics 2013-07-08 W. Satula , J. Dobaczewski , M. Konieczka , W. Nazarewicz

Knowledge of mechanical and physical property evolution due to irradiation damage is essential for the development of future fission and fusion reactors. Ion-irradiation provides an excellent proxy for studying irradiation damage, allowing…

We present libvdwxc, a general library for evaluating the energy and potential for the family of vdW-DF exchange--correlation functionals. libvdwxc provides an efficient implementation of the vdW-DF method and can be interfaced with various…

Materials Science · Physics 2021-01-14 Ask Hjorth Larsen , Mikael Kuisma , Joakim Löfgren , Yann Pouillon , Paul Erhart , Per Hyldgaard

We propose a novel idea to construct an effective interaction under energy-density-functional (EDF) theories which is adaptive to the enlargement of the model space. Guided by effective field theory principles, iterations of interactions as…

Nuclear Theory · Physics 2022-07-22 C. J. Yang , W. G. Jiang , S. Burrello , M. Grasso

Nuclear liquid drop model is revisited and an explicit introduction of the surface-curvature terms is presented. The corresponding parameters of the extended classical energy formula are adjusted to the contemporarily known nuclear binding…

Nuclear Theory · Physics 2016-09-08 K. Pomorski , J. Dudek

A key ingredient in any numerical study of supernova explosions is the nuclear network routine that is coupled with the hydrodynamic simulation code. When these studies are performed in more than one dimension, the size of the network is…

Solar and Stellar Astrophysics · Physics 2022-03-14 Axel Sanz , Rubén Cabezón , Domingo García-Senz

Background: Single-crystal chemical vapor deposited (sCVD) diamond detectors offer a unique method to study cross sections of reactions on carbon since they can be used as active targets. Previous studies analyzing neutrons on carbon using…

Ions with similar charge-to-mass ratios cannot be separated from existing beam profile monitors (BPMs) in nuclear facilities in which low-energy radioactive ions are produced due to nuclear fusion reactions. In this study, we developed a…

Instrumentation and Detectors · Physics 2022-01-04 K. S. Tanaka , U. Dammalapati , K. Harada , T. Hayamizu , M. Itoh , H. Kawamura , H. Nagahama , K. Nakamura , N. Ozawa , Y. Sakemi

Nuclear density functional theory (DFT) is one of the main theoretical tools used to study the properties of heavy and superheavy elements, or to describe the structure of nuclei far from stability. While on-going efforts seek to better…

Nuclear Theory · Physics 2015-12-23 N. Schunck , J. D. McDonnell , D. Higdon , J. Sarich , S. M. Wild

Following a previous paper [Y. Shi, Phys. Rev. C 98, 014329(2018)], we present an extension of the density-functional theory to allow for dynamic calculations based on the obtained static Hartree-Fock results. We perform extensive benchmark…

Nuclear Theory · Physics 2020-11-04 Yue Shi , Nobuo Hinohara , Bastian Schuetrumpf

Rydberg atomic radio-frequency (rf) sensors are an emerging technology platform that relies on vaporous atoms, interrogated with laser beams and nearly ionized, to receive rf signals. Rydberg rf sensors have a number of interesting…

Nuclear Density Functional Theory (DFT) plays a prominent role in the understanding of nuclear structure, being the approach with the widest range of applications. Hohenberg and Kohn theorems warrant the existence of a nuclear Energy…

Nuclear Theory · Physics 2020-03-03 G. Accorto , P. Brandolini , F. Marino , A. Porro , A. Scalesi , G. Colò , X. Roca-Maza , E. Vigezzi

The time-dependent density functional theory (TDDFT) provides a unified description of the structure and reaction. The linear approximation leads to the random-phase approximation (RPA) which is capable of describing a variety of collective…

Nuclear Theory · Physics 2016-05-09 Kai Wen , Kouhei Washiyama , Ni Fang , Takashi Nakatsukasa

We present in this work a new calculation of the standard-model benchmark value for the effective number of neutrinos, $N_{\rm eff}^{\rm SM}$, that quantifies the cosmological neutrino-to-photon energy densities. The calculation takes into…

High Energy Physics - Phenomenology · Physics 2021-05-03 Jack J. Bennett , Gilles Buldgen , Pablo F. de Salas , Marco Drewes , Stefano Gariazzo , Sergio Pastor , Yvonne Y. Y. Wong

The response of the liquid scintillator array Nordball to neutrons in the energy range 1.5 < T_n < 10 MeV has been measured by time of flight using a 252Cf fission source. Fission fragments were detected by means of a thin-film plastic…

Instrumentation and Detectors · Physics 2009-11-11 A. Reiter

During the fission process, the nucleus deforms and elongates up to the two fragments inception and their final separation at scission deformation. The evolution of the nucleus energy with deformation is determined by the macroscopic…

This work is part of an effort to provide more experimental data for the (n,n'x) reaction. The experiments were carried out at The Svedberg Laboratory in Uppsala, Sweden, at the quasi-mono-energetic neutron beam of 96 MeV, before the…

Nuclear Experiment · Physics 2013-03-28 C. Gustavsson , C. Hellesen , S. Pomp , A. Öhrn , J. Blomgren , U. Tippawan

Negative muon-induced nuclear reactions play a critical role in a wide range of scientific and technological applications; however, comprehensive nuclear data for these processes remain unavailable. To address this gap, we have launched the…