Measurement and analysis of the Am-243 neutron capture cross section at the nTOF facility at CERNBackground:The design of new nuclear reactors and transmutation devices requires to reduce the present neutron cross section uncertainties of minor actinides. Purpose: Reduce the 243Am(n,γ)…TOF Collaboration, E. Mendoza, D. Cano-Ott et al.·Dec 4, 2014SaveLearn
Jefferson Lab Science, Past and FutureThe Continuous Electron Beam Accelerator Facility (CEBAF) and associated experimental equipment at Jefferson Lab comprise a unique facility for experimental nuclear physics. This facility is…R. D. McKeown·Dec 3, 2014SaveLearn
Physics potential of polarized positrons at the Jefferson LaboratoryCharge symmetry in hadronic reactions, either verified or violated, appears to be in some circumstances a mandatory guide for model-independent understanding of the structure and dynamics at play.…Eric Voutier·Dec 3, 2014SaveLearn
Systematic Study of Azimuthal Anisotropy in Cu+Cu and Au+Au Collisions at s_NN = 62.4 and 200 GeVWe have studied the dependence of azimuthal anisotropy v2 for inclusive and identified charged hadrons in Au+Au and Cu+Cu collisions on collision energy, species, and centrality. The values of…A. Adare, S. Afanasiev, C. Aidala et al.·Dec 2, 2014SaveLearn
Measurement of the higher-order anisotropic flow coefficients for identified hadrons in Au+Au collisions at s_NN = 200 GeVNew PHENIX measurements of the anisotropic flow coefficients v2\Ψ2\, v3\Ψ3\, v4\Ψ4\ and v4\Ψ2\ for identified particles (π, K, and p+p) obtained…A. Adare, S. Afanasiev, C. Aidala et al.·Dec 2, 2014SaveLearn
Strangeness Suppression in q-qbar Creation Observed in Exclusive ReactionsWe measured the ratios of electroproduction cross-sections from a proton target for three exclusive meson-baryon final states: ΛK+, pπ0, and nπ+, with the CLAS detector at Jefferson Lab.…K. Park, M. D. Mestayer, the CLAS collaboration·Dec 2, 2014SaveLearn
Calculation of centrality bias factors in p+A collisions based on a positive correlation of hard process yields with underlying event activityHard scattering yields in centrality-selected proton-- and deuteron--nucleus (p+A) collisions are generally compared to nucleon--nucleon (NN) cross-sections scaled to the appropriate partonic…Dennis V. Perepelitsa, Peter A. Steinberg·Dec 2, 2014SaveLearn
New data on activation cross section for deuteron induced reactions on ytterbium up to 50 MeVActivation cross sections of deuteron induced reactions on ytterbium for production of 177g,173,172,171,170,169,167Lu, 177,175,169Yb and 173,168,167,165Tm were extended up to 50 MeV…F. Tárkányi, F. Ditrói, S. Takács et al.·Dec 2, 2014SaveLearn
Search for Neutrinoless Double-Beta DecayAfter the pioneering work of the Heidelberg-Moscow (HDM) and International Germanium Experiment (IGEX) groups, the second round of neutrinoless double-β decay searches currently underway has or…Werner Tornow·Dec 1, 2014SaveLearn
Identified particle production and freeze-out properties in heavy-ion collisions at RHIC Beam Energy Scan programThe first phase of Beam Energy Scan (BES) program at the Relativistic Heavy-Ion Collider (RHIC) was started in the year 2010 with the aim to study the several aspects of the quantum chromodynamics…Sabita Das·Dec 1, 2014SaveLearn
Activation cross sections of α-particle induced nuclear reactions on hafnium and deuteron induced nuclear reaction on tantalum: production of 178W/178mTa generatorIn the frame of a systematic study of charged particle production routes of medically relevant radionuclei, the excitation function for indirect production of 178mTa through…F. Tárk'anyi, S. Tak'acs, F. Ditrói et al.·Dec 1, 2014SaveLearn
Chemical freeze-out parameters in Beam Energy Scan Program of STAR at RHICThe STAR experiment at RHIC has completed its first phase of the Beam Energy Scan (BES-I) program to understand the phase structure of the quantum chromodynamics (QCD). The bulk properties of the…Sabita Das·Dec 1, 2014SaveLearn
Measurements of ep e π+n at W = 1.6 - 2.0 GeV and extraction of nucleon resonance electrocouplings at CLASDifferential cross sections of the exclusive process e p e π+ n were measured with good precision in the range of the photon virtuality Q2 = 1.8 - 4.5 GeV2, and the invariant mass…K. Park, I. G. Aznauryan, V. D. Burkert et al.·Nov 30, 2014SaveLearn
Status of some P-wave baryon resonances and importance of inelastic channelsWe analyze the current status of three P-wave baryon states N(1710)1/ 2+, N(1900)3/2+, and Δ(1600)3/2+ as given in the Review of Particles Physics (RPP). Since the evidence for a…Volker D. Burkert, Hiroyuki Kamano, Eberhard Klempt et al.·Nov 30, 2014SaveLearn
Momentum sharing in imbalanced Fermi systemsThe atomic nucleus is composed of two different kinds of fermions, protons and neutrons. If the protons and neutrons did not interact, the Pauli exclusion principle would force the majority fermions…O. Hen, M. Sargsian, L. B. Weinstein et al.·Nov 29, 2014SaveLearn
Observation of the critical end point in the phase diagram for hot and dense nuclear matterExcitation functions for the Gaussian emission source radii difference (R2out - R2side) obtained from two-pion interferometry measurements in Au+Au (sNN= 7.7 - 200…Roy A. Lacey·Nov 28, 2014SaveLearn
How much does the hadronic phase contribute to the observed anisotropic flow at the LHC?Elliptic flow signals the presence of multiple interactions between the constituents of the created matter in heavy-ion collisions. This includes possible contributions from the different phases,…Raimond Snellings·Nov 27, 2014SaveLearn
Excitation functions of natPb(d,x)206,205,204,203,202Bi, 203cum,202m,201cumPb and 202cum,201cumTl reactions up to 50 MeVCross-sections of deuteron induced nuclear reactions on lead were measured up to 50 MeV using the standard stacked foil irradiation technique and high resolution γ-ray spectrometry. Experimental…F. Ditrói, F. Tárkányi, S. Takács et al.·Nov 27, 2014SaveLearn
Measurement of the two-photon exchange contribution to the elastic ep scattering cross sections at the VEPP-3 storage ringThe ratio of the elastic e+ p to e- p scattering cross sections has been measured precisely, allowing the determination of the two-photon exchange contribution to these processes. This…I. A. Rachek, J. Arrington, V. F. Dmitriev et al.·Nov 26, 2014SaveLearn
Activation cross-sections of deuteron induced reactions on natSm up to 50 MeVActivation cross-sections for deuteron induced reactions on Sm are presented for the first time for natSm(d,xn)155,154,152m2,152m1,152g,150m,150g,149,148,147,146Eu,…F. Tárkányi, A. Hermanne, S. Takács et al.·Nov 26, 2014SaveLearn
Towards a resolution of the proton form factor problem: new electron and positron scattering dataThere is a significant discrepancy between the values of the proton electric form factor, GEp, extracted using unpolarized and polarized electron scattering. Calculations predict that small…D. Adikaram, D. Rimal, L. B. Weinstein et al.·Nov 25, 2014SaveLearn
Observation of the "K-pp"-like structure in the d(π+, K+) reaction at 1.69 GeV/cWe have observed a "K-pp"-like structure in the d(π+,K+) reaction at 1.69 GeV/c. In this reaction Λ(1405) hyperon resonance is expected to be produced as a doorway to form the…Yudai Ichikawa, Tomofumi Nagae, Hiroyuki Fujioka et al.·Nov 25, 2014SaveLearn
Recent KLOE results on kaon physicsA short review of two measurements recently published by KLOE/KLOE-2 collaborations is presented. Namely the most stringent limits of the CPT-violating parameters Delta amu for neutral kaons, and…E. Czerwiński·Nov 24, 2014SaveLearn
Close to threshold eta' meson production in proton-proton collisions at COSY-11Intensive quest for the eta and eta' bound states is currently ongoing at both theoretical and experimental levels e.g. at COSY, ELSA, GSI, JINR, JPARC, LPI, and MAMI. These studies were already…E. Czerwiński, P. Moskal, M. Silarski·Nov 24, 2014SaveLearn
Recognizing Critical Behavior amidst Minijets at the Large Hadron ColliderThe transition from quarks to hadrons in a heavy-ion collision at high energy is usually studied in two different contexts that involve very different transverse scales: local and non-local. Models…Rudolph C. Hwa·Nov 22, 2014SaveLearn