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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Eigenvector continuation as an efficient and accurate emulator for uncertainty quantification
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Constraining isovector nuclear interactions with giant resonances within a Bayesian approach
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Search for a common baryon source in high-multiplicity pp collisions at the LHC
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Probing short-range correlations in the deuteron via incoherent diffractive J/ψ production with spectator tagging at the EIC
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Spinodal instability at the onset of collective expansion in nuclear collisions
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An extended R Ψ m ( 2 ) ( Δ S 2 ) correlator for detecting and characterizing the Chiral Magnetic Wave
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Symmetry energy investigation with pion production from Sn+Sn systems
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Pion–kaon femtoscopy and the lifetime of the hadronic phase in Pb−Pb collisions at s NN = 2.76 TeV
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Studies of charm and beauty hadron long-range correlations in pp and pPb collisions at LHC energies
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Transverse-momentum and event-shape dependence of D-meson flow harmonics in Pb–Pb collisions at s NN = 5.02 TeV
The elliptic and triangular flow coefficients v 2 and v 3 of prompt D 0 , D + , and D * + mesons were measured at midrapidity ( | y | < 0.8 ) in Pb–Pb collisions at the centre-of-mass energy per nucleon pair of s NN = 5.02 TeV with the ALICE detector at the LHC. The D mesons were reconstructed via their hadronic decays in the transverse momentum interval 1 < p T < 36 GeV / c in central (0–10%) and semi-central (30–50%) collisions. Compared to pions, protons, and J / ψ mesons, the average D-meson v n harmonics are compatible within uncertainties with a mass hierarchy for p T ≲ 3 GeV / c , and are similar to those of charged pions for higher p T . The coupling of the charm quark to the light quarks in the underlying medium is further investigated with the application of the event-shape engineering (ESE) technique to the D-meson v 2 and p T -differential yields. The D-meson v 2 is correlated with average bulk elliptic flow in both central and semi-central collisions. Within the current precision, the ratios of per-event D-meson yields in the ESE-selected and unbiased samples are found to be compatible with unity. All the measurements are found to be reasonably well described by theoretical calculations including the effects of charm-quark transport and the recombination of charm quarks with light quarks in a hydrodynamically expanding medium.
Beta decay of the axially asymmetric ground state of 192 Re
The β decay of 192 75 Re 117 , which lies near the boundary between the regions of predicted prolate and oblate deformations, has been investigated using the KEK Isotope Separation System (KISS) in RIKEN Nishina Center. This is the first case in which a low-energy beam of rhenium isotope has been successfully extracted from an argon gas-stopping cell using a laser-ionization technique, following production via multi-nucleon transfer between heavy ions. The ground state of 192 Re has been assigned J π = (0⁻) based on the observed β feedings and deduced logft values towards the 0⁺ and 2⁺ states in 192 Os, which is known as a typical γ-soft nucleus. Furthermore, the shape transition from axial symmetry to axial asymmetry in the Re isotopes is discussed from the viewpoint of single-particle structure using the nuclear Skyrme-Hartree-Fock model.
Nucleon electric dipole moment from polarized deep inelastic scattering
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First measurement of quarkonium polarization in nuclear collisions at the LHC
The polarization of inclusive J/ψ and Υ(1S) produced in Pb–Pb collisions at √ s NN = 5.02 TeV at the LHC is measured with the ALICE detector. The study is carried out by reconstructing the quarkonium through its decay to muon pairs in the rapidity region 2.5 < y < 4 and measuring the polar and azimuthal angular distributions of the muons. The polarization parameters λ θ , λ φ and λ θφ are measured in the helicity and Collins-Soper reference frames, in the transverse momentum interval 2 < p T < 10 GeV/c and p T < 15 GeV/c for the J/ψ and Υ(1S), respectively. The polarization parameters for the J/ψ are found to be compatible with zero, within a maximum of about two standard deviations at low p T , for both reference frames and over the whole p T range. The values are compared with the corresponding results obtained for pp collisions at √s = 7 and 8 TeV in a similar kinematic region by the ALICE and LHCb experiments. Although with much larger uncertainties, the polarization parameters for Υ(1S) production in Pb–Pb collisions are also consistent with zero
Electron-ion collider impact study on the tensor charge of the nucleon
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Heavy meson tomography of cold nuclear matter at the electron-ion collider
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β-delayed neutron emission of r-process nuclei at the N = 82 shell closure
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