Observation of Anomalous Internal Pair Creation in 8Be: A Possible Signature of a Light, Neutral BosonElectron-positron angular correlations were measured for the isovector magnetic dipole 17.6 MeV state (Jπ=1+, T=1) → ground state (Jπ=0+, T=0) and the isoscalar magnetic…A. J. Krasznahorkay, M. Csatlós, L. Csige et al.·Apr 7, 2015SaveLearn
Nuclear structure beyond the neutron drip line: the lowest energy states in 9He via their T=5/2 isobaric analogs in 9LiThe level structure of the very neutron rich and unbound 9He nucleus has been the subject of significant experimental and theoretical study. Many recent works have claimed that the two lowest…E. Uberseder, G. V. Rogachev, V. Z. Goldberg et al.·Apr 3, 2015SaveLearn
A pair spectrometer for measuring multipolarities of energetic nuclear transitionsA multi-detector array has been designed and constructed for the simultaneous measurement of energy- and angular correlations of electron-positron pairs. Experimental results are obtained over a wide…J. Gulyás, T. J. Ketel, A. J. Krasznahorkay et al.·Apr 2, 2015SaveLearn
Measurement of pion, kaon and proton production in proton-proton collisions at s=7 TeVThe measurement of primary π, K, p and p production at mid-rapidity (|y| < 0.5) in proton-proton collisions at s = 7 TeV performed with ALICE (A Large Ion…ALICE Collaboration·Mar 31, 2015SaveLearn
Coherent ρ0 photoproduction in ultra-peripheral Pb-Pb collisions at s NN = 2.76 TeVWe report the first measurement at the LHC of coherent photoproduction of ρ0 mesons in ultra-peripheral Pb-Pb collisions. The invariant mass and transverse momentum distributions for ρ0…ALICE Collaboration·Mar 31, 2015SaveLearn
New measurement of the d(d,p)t reaction at astrophysical energies via the Trojan-horse methodThe study of d(d,p)t reaction is very important for the nucleosynthesis in both standard Big Bang and stellar evolution, as well as for the future fusion reactors planning of energy production. The…Chengbo Li, Qungang Wen, Yuanyong Fu et al.·Mar 30, 2015SaveLearn
New α ANC measurement of the 1/2+ state in 17O at 6.356 MeV, that dominates the 13C(α,n)16O reaction rate at temperatures relevant for the s-processBackground: Accurate knowledge of the 13C(α,n)16O reaction cross section is important for the understanding of the s-process in AGB stars, since it is considered to be the main source…M. L. Avila, G. V. Rogachev, E. Koshchiy et al.·Mar 30, 2015SaveLearn
Spectroscopy of 28Na: shell evolution toward the drip lineExcited states in 28Na have been studied using the β-decay of implanted 28Ne ions at GANIL/LISE as well as the in-beam γ-ray spectroscopy at the NSCL/S800 facility. New states of…A. Lepailleur, K. Wimmer, A. Mutschler et al.·Mar 30, 2015SaveLearn
Precise determination of 12ΛC level structure by γ-ray spectroscopyLevel structure of the 12ΛC hypernucleus was precisely determined by means of γ-ray spectroscopy. We identified four γ-ray transitions via the 12C(π+,K+γ) reaction using a…K. Hosomi, T. Ma, S. Ajimura et al.·Mar 29, 2015SaveLearn
Dipole polarizability of 120Sn and nuclear energy density functionalsThe electric dipole strength distribution in 120Sn between 5 and 22 MeV has been determined at RCNP Osaka from a polarization transfer analysis of proton inelastic scattering at E0 = 295 MeV and…T. Hashimoto, A. M. Krumbholz, P. -G. Reinhard et al.·Mar 28, 2015SaveLearn
First direct determination of the superallowed β-decay QEC-value for 14OWe report the first direct measurement of the 14O superallowed Fermi β-decay QEC-value, the last of the so-called "traditional nine" superallowed Fermi β-decays to be…A. A. Valverde, G. Bollen, M. Brodeur et al.·Mar 27, 2015SaveLearn
Compton Scattering from the Deuteron below Pion-Production ThresholdDifferential cross sections for elastic scattering of photons from the deuteron have recently been measured at the Tagged-Photon Facility at the MAX IV Laboratory in Lund, Sweden. These first new…Luke Myers, John Annand, Jason Brudvik et al.·Mar 27, 2015SaveLearn
Study of the dp-elastic scattering at 2 GeVThe results on the measurements of dp-elastic scattering cross section at the energy 2 GeV at Internal Target Station at the Nuclotron JINR are reported. The data were obtained for the angular range…A. A. Terekhin, Yu. V. Gurchin, A. Yu. Isupov et al.·Mar 27, 2015SaveLearn
Rapidity and transverse-momentum dependence of the inclusive J/ψ nuclear modification factor in p-Pb collisions at sNN=5.02 TeVWe have studied the transverse-momentum (p T) dependence of the inclusive J/ψ production in p-Pb collisions at s NN = 5.02 TeV, in three center-of-mass rapidity ($y…ALICE Collaboration·Mar 24, 2015SaveLearn
Coulomb and even-odd effects in cold and super-asymmetric fragmentation for thermal neutron induced fission of 235UThe Coulomb effects hypothesis is used to interpret even-odd effects of maximum total kinetic energy as a function of mass and charge of fragments from thermal neutron induced fission of 235U.…Modesto Montoya·Mar 23, 2015SaveLearn
Bremsstrahlung from relativistic heavy ions in a fixed target experiment at the LHCWe calculate the emission of bremsstrahlung from lead and argon ions in A Fixed Target ExpeRiment (AFTER) that uses the LHC beams. With nuclear charges of Ze equal 208 and 18 respectively,…Rune E. Mikkelsen, Allan H. Sørensen, Ulrik I. Uggerhøj·Mar 23, 2015SaveLearn
Centrality dependence of charged jets in p-Pb collisions at sNN = 5.02 TeV measured with the ALICE detectorHighly energetic jets are sensitive probes for the kinematics and the topology of nuclear collisions. Jets are collimated sprays of charged and neutral particles, which are produced in the…Rüdiger Haake·Mar 22, 2015SaveLearn
Three-body correlations in the ground-state decay of 26OBackground: Theoretical calculations have shown that the energy and angular correlations in the three-body decay of the two-neutron unbound O26 can provide information on the ground-state wave…Z. Kohley, T. Baumann, G. Christian et al.·Mar 20, 2015SaveLearn
Study of W boson production in pPb collisions at sqrt(s[NN]) = 5.02 TeVThe first study of W boson production in pPb collisions is presented, for bosons decaying to a muon or electron, and a neutrino. The measurements are based on a data sample corresponding to an…CMS Collaboration·Mar 19, 2015SaveLearn
Evidence for Δ(2200)7/2- from photoproduction and consequence for chiral-symmetry restoration at high massWe report a partial-wave analysis of new data on the double-polarization variable E for the reactions γp π+ n and γp π0 p and of further data published earlier. The analysis within the…A. V. Anisovich, V. Burkert, J. Hartmann et al.·Mar 19, 2015SaveLearn
Broad resonances and beta-decayBeta-decay into broad resonances gives a distorted lineshape in the observed energy spectrum. Part of the distortion arises from the phase space factor, but we show that the beta-decay matrix element…K. Riisager, H. O. U. Fynbo, S. Hyldegaard et al.·Mar 19, 2015SaveLearn
Different mechanism of two-proton emission from proton-rich nuclei 23Al and 22MgTwo-proton relative momentum (qpp) and opening angle (θpp) distributions from the three-body decay of two excited proton-rich nuclei, namely 23Al → p + p + 21Na and…Y. G. Ma, D. Q. Fang, X. Y. Sun et al.·Mar 19, 2015SaveLearn
New measurement of the excited states in 11B via the elastic resonance scattering of 10Be + pThe elastic resonance scattering protons decayed from 11B to the ground state of 10Be were measured using the thick-target technique in inverse kinematics at the Heavy Ion Research Facility…Y. D. Liu, H. W. Wang, Y. G. Ma et al.·Mar 19, 2015SaveLearn
The electron screening puzzle and nuclear clusteringAccurate measurements of nuclear reactions of astrophysical interest within, or close to, the Gamow peak, show evidence of an unexpected effect attributed to the presence of atomic electrons in the…C. Spitaleri, C. A. Bertulani, L. Fortunato et al.·Mar 18, 2015SaveLearn
Determination of the Beam-Spin Asymmetry of Deuteron Photodisintegration in the Energy Region Eγ=1.1-2.3 GeVThe beam-spin asymmetry, Σ, for the reaction γd→ pn has been measured using the CEBAF Large Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility (JLab)…Nicholas Zachariou, Yordanka Ilieva, Nikolay Ya. Ivanov et al.·Mar 18, 2015SaveLearn