Upper Limit on the Photoproduction Cross Section of the Spin-Exotic π1(1600)The spin-exotic hybrid meson π1(1600) is predicted to have a large decay rate to the ωππ final state. Using 76.6~pb-1 of data collected with the GlueX detector, we measure the…GlueX Collaboration, F. Afzal, C. S. Akondi et al.·Jul 3, 2024SaveLearn
Observation of double J/ meson production in pPb collisions at sNN = 8.16 TeVThe first observation of the concurrent production of two J/ mesons in proton-nucleus collisions is presented. The analysis is based on a proton-lead (pPb) data sample recorded at a…CMS Collaboration·Jul 3, 2024SaveLearn
Properties of the QCD Matter -- An Experimental Review of Selected Results from RHIC BES ProgramIn the paper, we discuss the development of the multi-gap resistive plate chamber Time-of-Flight (TOF) technology and the production of the STAR TOF detector in China at the beginning of the 21st…Jinhui Chen, Xin Dong, Xionghong He et al.·Jul 3, 2024SaveLearn
Heavy Flavor and Quarkonia Results from the PHENIX ExperimentThe PHENIX experiment at RHIC has a unique large rapidity coverage (1.2 < |y| < 2.2) for heavy flavor studies in heavy-ion collisions. This kinematic region has a smaller particle density and may…Krista Smith·Jul 2, 2024SaveLearn
Gamma decay of the 154Sm Isovector Giant Dipole Resonance: Smekal-Raman Scattering as a Novel Probe of Nuclear Ground-State DeformationGamma decays of the isovector giant dipole resonance (GDR) of the deformed nucleus 154Sm from 2+1-Smekal-Raman and elastic scattering were measured using linearly polarized,…J. Kleemann, N. Pietralla, U. Friman-Gayer et al.·Jun 28, 2024SaveLearn
Final results of the measurement to search for rare decays of naturally occurring osmium isotopes with ultra-low background gamma-ray spectrometryA long-term measurement was conducted to search for α, double-α and double-β decays with γ quanta emission in naturally occurring osmium isotopes. This study took advantage…P. Belli, R. Bernabei, F. Cappella et al.·Jun 27, 2024SaveLearn
New Spin Structure Constraints on Hyperfine Splitting and Proton SizeThe 1S hyperfine splitting in hydrogen is measured to an impressive ppt precision and will soon be measured to ppm precision in muonic hydrogen. The latter measurement will rely on theoretical…David Ruth, Karl Slifer, Jian-Ping Chen et al.·Jun 26, 2024SaveLearn
Anomalous soft photons: status and perspectivesThis report summarizes the work of the EMMI Rapid Reaction Task Force on "Real and Virtual Photon Production at Ultra-Low Transverse Momentum and Low Mass at the LHC". We provide an overview of the…R. Bailhache, D. Bonocore, P. Braun-Munzinger et al.·Jun 25, 2024SaveLearn
Stellar s-process neutron capture cross section of Ce isotopesStellar abundances of cerium are of high current interest based both on observations and theoretical models, especially with regard to the neutron--magic 140Ce isotope. A large discrepancy of…R. N. Sahoo, M. Paul, Y. Kashiv et al.·Jun 25, 2024SaveLearn
Characterization of isomers produced by the spontaneous fission of 252Cf with the VESPA setupIsomers produced by spontaneous fission of 252Cf have been measured with the VESPA setup, composed of LaBr3(Ce) detectors for fast γ-ray spectroscopy and an ionization chamber for…V. Piau, A. Göök, S. Oberstedt et al.·Jun 24, 2024SaveLearn
Measurement of the 12C(e,e') cross sections at Q2=0.8\,GeV2/c2We present the findings of a study based on a new inelastic electron-scattering experiment on the 12C nucleus focusing on the kinematic region of Q2=0.8\,GeV2/c2. The…M. Mihovilovič, L. Doria, P. Achenbach et al.·Jun 23, 2024SaveLearn
Measurement of directed flow in Au+Au collisions at sNN= 19.6 and 27 GeV with the STAR Event Plane DetectorIn heavy-ion collision experiments, the global collectivity of final-state particles can be quantified by anisotropic flow coefficients (vn). The first-order flow coefficient, also referred to as…STAR Collaboration·Jun 22, 2024SaveLearn
Dihadron Azimuthal Correlations in Deep-Inelastic Scattering Off Nuclear TargetsWe measured the nuclear dependence of the di-pion azimuthal correlation function in deep-inelastic scattering (DIS) using the CEBAF Large Acceptance Spectrometer (CLAS) and a 5 GeV electron beam. As…CLAS Collaboration·Jun 20, 2024SaveLearn
Direct neutrino-mass measurement based on 259 days of KATRIN dataThe fact that neutrinos carry a non-vanishing rest mass is evidence of physics beyond the Standard Model of elementary particles. Their absolute mass bears important relevance from particle physics…M. Aker, D. Batzler, A. Beglarian et al.·Jun 19, 2024SaveLearn
Measurement of Spin-Density Matrix Elements in ++(1232) photoproductionWe measure the spin-density matrix elements (SDMEs) of the ++(1232) in the photoproduction reaction γ p π-++(1232) with the GlueX experiment in Hall D at Jefferson…F. Afzal, C. S. Akondi, M. Albrecht et al.·Jun 18, 2024SaveLearn
Photoproduction of J/ and dileptons in Pb-Pb collisions with nuclear overlapPhoton-photon reactions and the production of J/ meson through photonuclear reactions have been extensively studied in ultra-peripheral heavy-ion collisions, in which the impact parameter is…Nicolas Bizé·Jun 18, 2024SaveLearn
Spinning Hall Probe magnetic compassIn a large range of physics and space experiments, the direction of the magnetic field needs to be determined with an accuracy on the level of one milli radian or better. We have proposed a new type…B. Wojtsekhowski·Jun 17, 2024SaveLearn
Polarized internal target experiments based on EIC beamsThe Electron-Ion Collider is under construction at BNL. It will have high-energy high-intensity polarized beams of electrons and hadrons. These beams will allow a high accuracy investigation of…B. Wojtsekhowski·Jun 17, 2024SaveLearn
An experimental search for an explanation of the difference between beam and bottle neutron lifetime measurementsThe past two decades have yielded several new measurements and reanalysis of older measurements of the neutron lifetime. These have led to a 4.4 standard deviation discrepancy between the most…M. F. Blatnik, L. S. Blokland, N. Callahan et al.·Jun 14, 2024SaveLearn
Experimental studies of the three nucleon system dynamics in the proton induced deuteron breakup at 108 MeVThe differential cross sections for the 2H(p,pp)n reaction have been measured for 84 angular configurations of the outgoing protons in the range of polar angles from 13 to 33 degrees with a proton…A. Łobejko, E. Stephan, I. Ciepał et al.·Jun 14, 2024SaveLearn
Reactor Antineutrino Directionality Measurement with the PROSPECT-I DetectorThe PROSPECT-I detector has several features that enable measurement of the direction of a compact neutrino source. In this paper, a detailed report on the directional measurements made on electron…M. Andriamirado, B. Balantekin, C. D. Bass et al.·Jun 12, 2024SaveLearn
Jet modification via π0-hadron correlations in Au+Au collisions at s_NN=200 GeVHigh-momentum two-particle correlations are a useful tool for studying jet-quenching effects in the quark-gluon plasma. Angular correlations between neutral-pion triggers and charged hadrons with…PHENIX Collaboration, N. J. Abdulameer, U. Acharya et al.·Jun 12, 2024SaveLearn
Search for the Chiral Magnetic Effect using Sliding Dumbbell Method in Isobar Collisions (9644Ru+9644Ru and 9640Zr+9640Zr) at RHICExperiments conducted in the last decade to search for the Chiral Magnetic Effect (CME) in heavy-ion collisions have been inconclusive. The Isobar program at RHIC was undertaken to address this…Jagbir Singh·Jun 10, 2024SaveLearn
High-precision measurements of the atomic mass and electron-capture decay Q value of 95TcA direct measurement of the ground-state-to-ground-state electron-capture decay Q value of 95Tc has been performed utilizing the double Penning trap mass spectrometer JYFLTRAP. The Q value…Zhuang Ge, Tommi Eronen, Vasile Alin Sevestrean et al.·Jun 7, 2024SaveLearn
Observation and spectroscopy of proton-unbound nucleus 21AlWe report on the observation of previously-unknown isotope 21Al, the first unbound aluminum isotope located beyond the proton dripline. The 21Al nucleus decays by one-proton (1p) emission,…D. Kostyleva, X. -D. Xu, I. Mukha et al.·Jun 7, 2024SaveLearn