Search for η'(958)-nucleus bound states by (p,d) reaction at GSI and FAIRThe mass of the η' meson is theoretically expected to be reduced at finite density, which indicates the existence of η'-nucleus bound states. To investigate these states, we perform…H. Fujioka, Y. Ayyad, J. Benlliure et al.·Jan 19, 2015SaveLearn
Evidence for narrow resonant structures at W ≈ 1.68 and W ≈ 1.72 GeV in real Compton scattering off the protonFirst measurement of the beam asymmetry Σ for Compton scattering off the proton in the energy range Eγ=0.85 - 1.25 GeV is presented. The data reveals two narrow structures at Eγ= 1.036 and…V. Kuznetsov, F. Mammoliti, V. Bellini et al.·Jan 18, 2015SaveLearn
Comments on "Interference phenomena in the Jp = 1/2- - wave in η photoproduction" by A.V. Anisovich et al. [arXiv:1501.02093]The authors of arXiv:1501.02093v1 claimed that " ... narrow structure observed in the excitation function of γn ηn can be reproduced fully with a particular interference pattern in the…Viacheslav Kuznetsov·Jan 16, 2015SaveLearn
Subthreshold Xi- Production in Collisions of p(3.5 GeV)+NbResults on the production of the double-strange cascade hyperon Ξ- are reported for collisions of p\,(3.5~GeV)\,+\,Nb, studied with the High Acceptance Di-Electron Spectrometer (HADES) at…G. Agakishiev, O. Arnold, A. Balanda et al.·Jan 16, 2015SaveLearn
Resonances as Probes of Heavy-Ion Collisions at ALICEHadronic resonances serve as unique probes in the study of the hot and dense nuclear matter produced in heavy-ion collisions. Properties of the hadronic phase of the collision can be extracted from…A. G. Knospe·Jan 15, 2015SaveLearn
A Monte Carlo Study of Multiplicity Fluctuations in Pb-Pb Collisions at LHC EnergiesWith large volumes of data available from LHC, it has become possible to study the multiplicity distributions for the various possible behaviours of the multiparticle production in collisions of…Ramni Gupta·Jan 15, 2015SaveLearn
High-spin level structure of the neutron-rich nucleus 91YHigh-spin level structure of the neutron-rich nucleus 91Y has been reinvestigated via the 82Se(13C, p3n)91Y reaction. A newly constructed level scheme including several key levels clarifies the…Xiao-Feng He, Xiao-Hong Zhou, Yong-De Fang et al.·Jan 15, 2015SaveLearn
β-delayed γ-proton decay in 56Zn: analysis of the charged-particle spectrumA study of the β decay of the proton-rich Tz = -2 nucleus 56Zn has been reported in a recent publication. A rare and exotic decay mode, β-delayed γ-proton decay, has been…S. E. A. Orrigo, B. Rubio, Y. Fujita et al.·Jan 14, 2015SaveLearn
Competition between β-delayed proton and β-delayed γ decay of the exotic Tz = -2 nucleus 56Zn and fragmentation of the IASA very exotic decay mode at the proton drip-line, β-delayed γ-proton decay, has been observed in the β decay of the Tz = -2 nucleus 56Zn. Three γ-proton sequences have been observed…B. Rubio, S. E. A. Orrigo, Y. Fujita et al.·Jan 14, 2015SaveLearn
The Majorana Demonstrator: A Search for Neutrinoless Double-beta Decay of 76GeNeutrinoless double-beta decay is a hypothesized process where in some even-even nuclei it might be possible for two neutrons to simultaneously decay into two protons and two electrons without…Majorana Collaboration, W. Xu, N. Abgrall et al.·Jan 13, 2015SaveLearn
Search for unbound 15Be states in the 3n+12Be channel15Be is expected to have low-lying 3/2+ and 5/2+ states. A first search did not observe the 3/2+ [A. Spyrou et al., Phys. Rev. C 84, 044309 (2011)], however, a resonance in 15Be was populated in a…A. N. Kuchera, A. Spyrou, J. K. Smith et al.·Jan 13, 2015SaveLearn
Frequency shifts in gravitational resonance spectroscopyQuantum states of ultracold neutrons in the gravitational field are to be characterized through gravitational resonance spectroscopy. This paper discusses systematic effects that appear in the…S. Baeßler, V. V. Nesvizhevsky, G. Pignol et al.·Jan 13, 2015SaveLearn
Fluctuations of Conserved Quantities in High Energy Nuclear Collisions at RHICFluctuations of conserved quantities in heavy-ion collisions are used to probe the phase transition and the QCD critical point for the strongly interacting hot and dense nuclear matter. The STAR…Xiaofeng Luo·Jan 13, 2015SaveLearn
Nucleon partonic spin structure to be explored by the unpolarized Drell-Yan program of COMPASS experiment at CERNThe observation of the violation of Lam-Tung relation in the πN Drell-Yan process triggered many theoretical speculations. The TMD Boer-Mulders functions characterizing the correlation of…Wen-Chen Chang·Jan 12, 2015SaveLearn
Results on ββ decay with emission of two neutrinos or Majorons in 76Ge from GERDA Phase IA search for neutrinoless ββ decay processes accompanied with Majoron emission has been performed using data collected during Phase I of the GERmanium Detector Array (GERDA) experiment at the…M. Agostini, M. Allardt, A. M. Bakalyarov et al.·Jan 10, 2015SaveLearn
Imperfect World of ββ-decay Nuclear Data Sets?The precision of double-beta (ββ) decay experimental half-lives and their uncertainties is reevaluated. A complementary analysis of the decay uncertainties indicates deficiencies due to small size…B. Pritychenko·Jan 9, 2015SaveLearn
Interference phenomena in the JP=1/2--wave in η photoproductionThe recent precise experimental results for the photoproduction of η-mesons off the neutron measured with the Crystal Ball/TAPS calorimeter at the MAMI accelerator have been investigated in detail…A. V. Anisovich, E. Klempt, B. Krusche et al.·Jan 9, 2015SaveLearn
Three-body nature of N * and Δ* resonances from sequential decay chainsThe Nπ0π0 decays of positive-parity N* and Δ* resonances at about 2\,GeV are studied at ELSA by photoproduction of two neutral pions off protons. The data reveal clear evidence for several…TAPS Collaboration·Jan 9, 2015SaveLearn
Neutrino-nucleus interactions and the short-range structure of nucleiImprovements in theoretical modeling of Short Range structures and phenomena, and comparisons with data, will require sustained collaboration between nuclear theorists and neutrino experimentalists.…F. Cavanna, O. Palamara, R. Schiavilla et al.·Jan 8, 2015SaveLearn
Predicting the production of neutron rich heavy nuclei in multi-nucleon transfer reactions using GRAZING-FBackground: Multi-nucleon transfer reactions have recently attracted attention as a possible path to the synthesis of new neutron-rich heavy nuclei. Purpose: We study transfer reactions involving…R. Yanez, W. Loveland·Jan 7, 2015SaveLearn
Measurement of the 187Re(α,n)190Ir reaction cross section at sub-Coulomb energies using the Cologne Clover Counting SetupUncertainties in adopted models of particle+nucleus optical-model potentials directly influence the accuracy in the theoretical predictions of reaction rates as they are needed for reaction-network…P. Scholz, A. Endres, A. Hennig et al.·Jan 7, 2015SaveLearn
Experimental investigation on the temperature dependence of the nuclear level density parameterThe effect of temperature (T) and angular momentum (J) on the inverse level density parameter (k) has been studied by populating the compound nucleus 97Tc in the reaction 4He + 93Nb at…Balaram Dey, Deepak Pandit, Srijit Bhattacharya et al.·Jan 7, 2015SaveLearn
The RHIC SPIN Program: Achievements and Future OpportunitiesTime and again, spin has been a key element in the exploration of fundamental physics. Spin-dependent observables have often revealed deficits in the assumed theoretical framework and have led to…Elke-Caroline Aschenauer, Alexander Bazilevsky, Markus Diehl et al.·Jan 6, 2015SaveLearn
Nuclear structure studies of 24FThe structure of the 24F nucleus has been studied at GANIL using the β decay of 24O and the in-beam γ-ray spectroscopy from the fragmentation of projectile nuclei. Combining these…L. Caceres, A. Lepailleur, O. Sorlin et al.·Jan 6, 2015SaveLearn
Neutron Knockout on Beams of 108,106Sn and 106CdCharacterizing the nature of single-particle states outside of double shell closures is essential to a fundamental understanding of nuclear structure. This is especially true for those doubly magic…Giordano Cerizza·Jan 5, 2015SaveLearn