Latest in nucl-ex

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New data on $\vecγ \vec{p}\rightarrow ηp$ with polarized photons and protons and their implications for $N^* \to Nη$ decaysSep 18 2019The polarization observables $T, E, P, H$, and $G$ in photoproduction of $\eta$ mesons off protons are measured for photon energies from threshold to $W=2400\,$MeV ($T$), 2280 MeV ($E$), 1620 MeV ($P, H$), or 1820 MeV ($G$), covering nearly the full solid ... More
The DireXeno Experiment -- Measuring Correlated Scintillation Signatures in Liquid XenonSep 18 2019We present a detector apparatus, DireXeno (DIRectinal Xenon), designed to measure the spatial and temporal properties of scintillation in liquid xenon to very high accuracy. The properties of scintillation are of primary importance for dark matter and ... More
Cyclotron Radiation Emission Spectroscopy Signal Classification with Machine Learning in Project 8Sep 17 2019The Cyclotron Radiation Emission Spectroscopy (CRES) technique pioneered by Project 8 measures electromagnetic radiation from individual electrons gyrating in a background magnetic field to construct a highly precise energy spectrum for beta decay studies ... More
Microscopic study of strange hadron productions at $\sqrt{s_{NN}}$=2.76 TeV, LHC energySep 17 2019Ratio of the yield of strange hadrons to pions is considered now as an important observable in studying the properties of the system produced in relativistic heavy ion collisions. Production of strange hadrons $K, \bar{K}, \Lambda, \Sigma, \Xi$ and $\Omega$ ... More
Production of $φ(2170)$ and $η(2225)$ in a kaon induced reactionSep 17 2019In this work, we study the production of strange quarkoniums, the $\phi(2170)$, also named $Y(2175)$, and the $\eta(2225)$, via a kaon induced reaction on a proton target in an effective Lagrangian approach. The total and differential cross sections of ... More
$S$-factor and scattering-parameter extractions from ${}^{3}\mathrm{He} +{}^{4}\mathrm{He} \rightarrow {}^{7}\mathrm{Be} + γ$Sep 16 2019Previous studies of the reaction ${}^{3}\mathrm{He} +{}^{4}\mathrm{He} \rightarrow {}^{7}\mathrm{Be} + \gamma$ have focused on providing the best central value and error bar for the $S$ factor at solar energies. Measurements of this capture reaction, ... More
Improvement of heavy flavor productions in a multi-phase transport model updated with modern nPDFsSep 16 2019Recently we have updated a multi-phase transport (AMPT) model with modern parton distribution functions of nuclei (nPDFs). Here we study open charm productions in the updated AMPT model and compare to the experimental data from $pp$ and $AA$ collisions ... More
New Results from the Cosmic-Ray Program of the NA61/SHINE facility at the CERN SPSSep 16 2019The NA61/SHINE experiment at the SPS accelerator at CERN is a unique facility for the study of hadronic interactions at fixed target energies. The data collected with NA61/SHINE is relevant for a broad range of topics in cosmic-ray physics including ultrahigh-energy ... More
Study of the lateral distribution functions of electron and muon bundles using Trasgo detectorsSep 16 2019Some of the main features of the new generation Trasgo detectors are their capability in measuring the incoming direction and the arrival time of secondary cosmic particles. They also offer the identification capability between muon and electrons and ... More
Energy Dependence of Light Nuclei (d, t) Production at STARSep 16 2019In high-energy nuclear collisions, the production of light nuclei is sensitive to the temperature and phase-space density of the system at freeze-out. In addition, the phase transition from QGP to the hadronic phase will lead to large baryon density fluctuation, ... More
Energy Dependence of Light Nuclei ($d$, $t$) Production at STARSep 16 2019Sep 17 2019In high-energy nuclear collisions, the production of light nuclei is sensitive to the temperature and phase-space density of the system at freeze-out. In addition, the phase transition from QGP to the hadronic phase will lead to large baryon density fluctuation, ... More
Constraining the $^{12}$C+$^{12}$C astrophysical S-factors with the $^{12}$C+$^{13}$C measurements at very low energiesSep 16 2019We use an underground counting lab with an extremely low background to perform an activity measurement for the $^{12}$C+$^{13}$C system with energies down to $E\rm_{c.m.}$=2.323 MeV, at which the $^{12}$C($^{13}$C,$p$)$^{24}$Na cross section is found ... More
Testing claims of the GW170817 binary neutron star inspiral affecting $β$-decay ratesSep 16 2019On August 17, 2017, the first gravitational wave signal from a binary neutron star inspiral (GW170817) was detected by Advanced LIGO and Advanced VIRGO. Here we present radioactive $\beta$-decay rates of three independent sources $^{44}$Ti, $^{60}$Co ... More
Effects of $P_{\mathrm{tot}}$ gates and velocity gates on light-particle momentum correlation in intermediate-energy heavy-ion collisionsSep 16 2019Momentum correlation functions at small relative momenta are calculated for light particles $\left(n, p, d, t\right)$ emitted from $^{197}$Au + $^{197}$Au collisions at different impact parameters and beam energies within the framework of the isospin-dependent ... More
Probing the role of proton cross-shell excitations in 70Ni using nucleon knockout reactionsSep 15 2019The neutron-rich Ni isotopes have attracted attention in recent years due to the occurrence of shape or configuration coexistence. We report on the difference in population of excited final states in 70Ni following gamma-ray tagged one-proton, one-neutron, ... More
Symmetry energy of super-dense neutron-rich matter from integrating barotropic pressures in neutron stars and heavy-ion reactionsSep 14 2019Within the minimum model of neutron stars (NS) consisting of neutrons, protons and electrons, a new approach is proposed for inferring the symmetry energy of super-dense neutron-rich nucleonic matter above twice the saturation density $\rho_0$ of nuclear ... More
Measurements of hadron production in $π^{+}$ + C and $π^{+}$ + Be interactions at 60 GeV/$c$Sep 13 2019Precise knowledge of hadron production rates in the generation of neutrino beams is necessary for accelerator-based neutrino experiments to achieve their physics goals. NA61/SHINE, a large-acceptance hadron spectrometer, has recorded hadron+nucleus interactions ... More
Bayesian unfolding of charged particle $p_{\mathrm{T}} $ spectra with ALICE at the LHCSep 13 2019The study of the Quark-Gluon Plasma created in ultrarelativistic heavy-ion collisions at the CERN-LHC is complemented by reference measurements in proton-lead (p--Pb) and proton-proton (pp) collisions, where the effects of multiple-parton interactions ... More
First operation of the KATRIN experiment with tritiumSep 13 2019The determination of the neutrino mass is one of the major challenges in astroparticle physics today. Direct neutrino mass experiments, based solely on the kinematics of beta-decay, provide a largely model-independent probe to the neutrino mass scale. ... More
An improved upper limit on the neutrino mass from a direct kinematic method by KATRINSep 13 2019We report on the neutrino mass measurement result from the first four-week science run of the Karlsruhe Tritium Neutrino experiment KATRIN in spring 2019. Beta-decay electrons from a high-purity gaseous molecular tritium source are energy analyzed by ... More
Status on $\mathbf{{}^{12}{\rm C}+{}^{12}{\rm C}}$ fusion at deep subbarrier energies: impact of resonances on astrophysical $S^{*}$ factorsSep 13 2019Since the discovery of molecular resonances in $^{12}$C+$^{12}$C in the early sixties a great deal of research work has been undertaken to study $\alpha$-clustering and resonant effects of the fusion process at sub-Coulomb barrier energies. The astrophysical ... More
Status on $\mathbf{{}^{12}{\rm C}+{}^{12}{\rm C}}$ fusion at deep subbarrier energies: impact of resonances on astrophysical $S^{*}$ factorsSep 13 2019Sep 18 2019Since the discovery of molecular resonances in $^{12}$C+$^{12}$C in the early sixties a great deal of research work has been undertaken to study $\alpha$-clustering and resonant effects of the fusion process at sub-Coulomb barrier energies. The astrophysical ... More
First Constraint on Coherent Elastic Neutrino-Nucleus Scattering in ArgonSep 12 2019Coherent elastic neutrino-nucleus scattering (CEvNS) is the dominant neutrino scattering channel for neutrinos of energy $E_\nu < 100$ MeV. We report a limit for this process using data collected in an engineering run of the 29 kg CENNS-10 liquid argon ... More
Pseudoscalar glueball mass: a window on three-gluon interactionsSep 12 2019In pure-glue QCD, gluon-gluon scattering in the $J^{PC}=0^{-+}$ channel is described by a very simple equation, especially if one considers just the leading contribution to the scattering kernel. Of all components in this kernel, only the three-gluon ... More
Radio Frequency and DC High Voltage Breakdown of High Pressure Helium, Argon, and XenonSep 12 2019Motivated by the possibility of guiding daughter ions from double beta decay events to single-ion sensors for barium tagging, the NEXT collaboration is developing a program of R&D to test radio frequency (RF) carpets for ion transport in high pressure ... More
Impact of Charge Trapping on the Energy Resolution of Ge Detectors for Rare-Event Physics SearchesSep 12 2019Charge trapping degrades the energy resolution of germanium (Ge) detectors, which require to have increased experimental sensitivity in searching for dark matter and neutrinoless double-beta decay. We investigate the charge trapping processes utilizing ... More
Role of Event Multiplicity on Hadronic phase Lifetime and QCD Phase boundary in Ultra-relativistic Collisions at the RHIC and LHCSep 12 2019Hadronic resonances, having very short lifetime, like $\rm{K}^{*0}$, can act as useful probes to understand and estimate lifetime of hadronic phase in ultra-relativistic proton-proton, p-Pb and heavy-ion collisions. Resonances with relatively longer lifetime, ... More
Quenching of gamma0 transition results from p-wave neutron inducing doorway mechanismSep 11 2019Gamma-strength function essentially distinguishes the reaction mechanisms of charged particle inelastic and neutron capture reactions, reflecting from the ratios of transition of neutron capture to low-lying states. The extraordinary quenching of gamma_0 ... More
Uncertainties of calculated coincidence-summing correction factors in gamma-ray spectrometrySep 11 2019Uncertainty propagation to the $\gamma$-$\gamma$ coincidence-summing correction factor from the covariances of the nuclear data and detection efficiencies have been formulated. The method was applied in the uncertainty analysis of the coincidence-summing ... More
Barium Tagging with Selective, Dry-Functional, Single Molecule Sensitive On-Off Fluorophores for the NEXT ExperimentSep 10 2019In the search for neutrinoless double beta decay, understanding and reducing backgrounds is crucial for success. An advance that could drive backgrounds to negligible levels would be the ability to efficiently detect the barium daughter in $^{136}$Xe ... More
Background evaluations for the chiral magnetic effect with normalized correlators using a multiphase transport modelSep 09 2019The chiral magnetic effect (CME) induces an electric charge separation in a chiral medium along the magnetic field that is mostly produced by spectator protons in heavy-ion collisions. The experimental searches for the CME, based on the charge-dependent ... More
Statistics of the Charge Spectrum of Photo-Multipliers and Methods for Absolute CalibrationSep 09 2019In this paper, we derive the full expression for the shape of the charge distribution that results from the illumination of a photo-multiplier tube. The derivation assumes that the photo-multiplier is operated with low intensity illumination with constant ... More
Application of Principal Component Analysis to establish proper basis for flow studies in heavy-ion collisionsSep 09 2019It is shown that Principal Component Analysis (PCA) applied to event-by-event single-particle distributions in A-A collisions allows establishing the most optimal basis for anisotropic flow studies from data itself, in contrast to manual selection of ... More
$Z_c(4430)$, $Z_c(4200)$, $Z_1(4050)$, and $Z_2(4250)$ as triangle singularitiesSep 09 2019$Z_c(4430)$ discovered in $\bar{B}^0\to\psi(2S)K^-\pi^+$, $Z_c(4200)$ found in $\bar{B}^0\to J/\psi K^-\pi^+$, and $Z_1(4050)$ and $Z_2(4250)$ observed in $\bar{B}^0\to\chi_{c1}K^-\pi^+$ are candidates of charged charmonium-like states. All surviving ... More
Particle production and flow-like effects in small systemsSep 09 2019Particle production in small systems (pp and p-Pb collisions) has unveiled unexpected collective-like behavior. In this work an overview of the current investigation on the similarities between small systems and heavy-ion collisions is presented. Recent ... More
Measurement of the muon neutrino charged-current single $π^+$ production on hydrocarbon using the T2K off-axis near detector ND280Sep 09 2019Sep 17 2019We report the measurements of single and double differential cross section of muon neutrino charged-current interactions on carbon with a single positively charged pion in the final state at the T2K off-axis near detector using $5.56\times10^{20}$ protons ... More
Measurement of the muon neutrino charged-current single $π^+$ production on hydrocarbon % C$_8$H$_8$ using the T2K off-axis near detector ND280Sep 09 2019We report the measurements of single and double differential cross section of muon neutrino charged-current interactions on carbon with a single positively charged pion in the final state at the T2K off-axis near detector using $5.56\times10^{20}$ protons ... More
Measurement of the muon neutrino charged-current single $π^+$ production on hydrocarbon using the T2K off-axis near detector ND280Sep 09 2019Sep 10 2019We report the measurements of single and double differential cross section of muon neutrino charged-current interactions on carbon with a single positively charged pion in the final state at the T2K off-axis near detector using $5.56\times10^{20}$ protons ... More
$J/ψ$ Production Dynamics: Event shape, Multiplicity and Rapidity dependence in Proton+Proton Collisions at LHC energies using PYTHIA8Sep 09 2019High-multiplicity $p+p$ collisions at the Large Hadron Collider energies have created special importance in view of the Underlying Event (UE) observables. The recent results of LHC such as long range angular correlation, flow like patterns, strangeness ... More
A new Monte Carlo-based fitting methodSep 09 2019We present a new fitting technique based on the parametric bootstrap method, which relies on the idea to produce artificial measurements using the estimated probability distribution of the experimental data. In order to investigate the main properties ... More
Role of Neutron Transfer in Sub-Barrier FusionSep 09 2019Fusion excitation function of $^{35}$Cl + $^{130}$Te system is measured in the energy range around the Coulomb barrier and analyzed in the framework of the coupled-channels approach. The role of projectile deformation, nuclear structure, and the couplings ... More
Evidence of Single State Dominance in the Two-Neutrino Double-$β$ Decay of Se-82 with CUPID-0Sep 08 2019We report on the measurement of the two-neutrino double-$\beta$ decay of $^{82}$Se performed for the first time with cryogenic calorimeters, in the framework of the CUPID-0~experiment. With an exposure of 9.95 kg$\times$yr of Zn$^{82}$Se, we determine ... More
Measurements of production and inelastic cross sections for $\mbox{p}+\mbox{C}$, $\mbox{p}+\mbox{Be}$, and $\mbox{p}+\mbox{Al}$ at 60 GeV/$c$ and $\mbox{p}+\mbox{C}$ and $\mbox{p}+\mbox{Be}$ at 120 GeV/$c$Sep 07 2019This paper presents measurements of production cross sections and inelastic cross sections for the following reactions: 60 GeV/$c$ protons with C, Be, Al targets and 120 GeV/$c$ protons with C and Be targets. The analysis was performed using the NA61/SHINE ... More
Happy Birthday, Ultra-Cold Neutron!Sep 07 2019What is driving the accelerated expansion of the universe and do we have an alternative for Einstein's cosmological constant? What is dark matter made of? Do extra dimensions of space and time exist? Is there a preferred frame in the universe? To which ... More
IRDFF-II: A New Neutron Metrology LibrarySep 07 2019High quality nuclear data is the most fundamental underpinning for all neutron metrology applications. This paper describes the release of version II of the International Reactor Dosimetry and Fusion File (\mbox{IRDFF-II}) that contains a consistent set ... More
Evidence for rigid triaxial deformation in $^{76}$Ge from a model-independent analysisSep 07 2019An extensive, model-independent analysis of the nature of triaxial deformation in $^{76}$Ge, a candidate for neutrinoless double-beta ($0\nu\beta\beta$) decay, was carried out following multi-step Coulomb excitation. Shape parameters deduced on the basis ... More
Impact of Uncertainties in Astrophysical Reaction Rates on Nucleosynthesis in the $νp$ ProcessSep 07 2019The $\nu p$ process appears in proton-rich, hot matter which is expanding in a neutrino wind and may be realised in explosive environments such as core-collapse supernovae or in outflows from accretion disks. The impact of uncertainties in nuclear reaction ... More
Impact of Uncertainties in Astrophysical Reaction Rates on Nucleosynthesis in the $νp$ ProcessSep 07 2019Sep 12 2019The $\nu p$ process appears in proton-rich, hot matter which is expanding in a neutrino wind and may be realised in explosive environments such as core-collapse supernovae or in outflows from accretion disks. The impact of uncertainties in nuclear reaction ... More
Yield ratio of neutrons to protons in $^{12}C(d,n)^{13}$N and $^{12}C(d,p)^{13}$C from 0.6 MeV to 3 MeVSep 07 2019The neutron yield in $^{12}$C(d,n)$^{13}$N and the proton yield in $^{12}C(d,p)^{13}$C have been measured by deuteron beam from 0.6 MeV to 3 MeV which is delivered from a 4-MeV electro static accelerator bombarding on the thick carbon target. The neutrons ... More
Fusion reactions in the $^9$Be + $^{197}$Au system above the Coulomb barrierSep 07 2019The cross sections of complete fusion and incomplete fusion for the $ ^{9} $Be + $ ^{197} $Au system, at energies not too much above the Coulomb barrier, were measured for the first time. The online activation followed by offline $\gamma$-ray spectroscopy ... More
The energy and scale dependence of $\hat{q}$ and the JET puzzleSep 07 2019We present an attempt to probe the underlying structure of the quark-gluon plasma (QGP) at high resolution, based on the extracted jet transport coefficient $\hat{q}$. We argue that the exchanged momentum $k$ between the hard parton and the medium varies ... More
Finite-size scaling phenomenon of nuclear liquid--gas phase transition probesSep 07 2019Based on the isospin-dependent quantum molecular dynamics model, finite-size scaling effects on nuclear liquid--gas phase transition probes are investigated by studying the de-excitation processes of six thermal sources of different sizes with the same ... More
Electromagnetic field from asymmetric to symmetric heavy ion collision at 200 GeV/cSep 07 2019Electromagnetic fields produced in relativistic heavy-ion collisions are affected by the asymmetry of the projectile-target combination as well as the different initial configurations of the nucleus. In this study, the results of the electric and magnetic ... More
Studies of J/$ψ$ production at forward rapidity in Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeVSep 07 2019The inclusive J/$\psi$ production in Pb-Pb collisions at the center-of-mass energy per nucleon pair $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV, measured with the ALICE detector at the CERN LHC, is reported. The J/$\psi$ meson is reconstructed via the dimuon decay ... More
Searching for $^4\overline{L}i$ by momentum correlation function of $\overline{p}-^3\overline{H}e$Sep 07 2019The observed heaviest anti-nucleus so far is $^4\overline{H}e$ which is found in relativistic heavy ion collider in 2011. The yield of $^4\overline{L}i$ is four times bigger than that of $^4\overline{H}e$ according to the thermal model. From previous ... More
Observation of Feynman scaling violations and evidence for a new resonance at RHICSep 06 2019We report measurements of forward jets and dijets produced in Cu+Au collisions at $\sqrt{s_{NN}}=200$ GeV at the Relativistic Heavy Ion Collider. We also report dijet production cross sections in p+p collisions at $\sqrt{s}=510$ GeV. We use the invariant ... More
The CUPID-Mo experiment for neutrinoless double-beta decay: performance and prospectsSep 06 2019CUPID-Mo is a bolometric experiment to search for neutrinoless double-beta decay ($0\nu\beta\beta$) of $^{100}$Mo. In this article, we detail the CUPID-Mo detector concept, assembly, installation in the underground laboratory in Modane in 2018, and provide ... More
$I = 3$ three-pion scattering amplitude from lattice QCDSep 06 2019We analyze the spectrum of two- and three-pion states of maximal isospin obtained recently for isosymmetric QCD with pion mass $M\approx 200\;$MeV in Ref. [1]. Using the relativistic three-particle quantization condition, we find $\sim 2 \sigma$ evidence ... More
Measurements of jet fragmentation and jet substructure with ALICESep 06 2019We discuss the latest results from jet fragmentation and jet substructure measurements performed with the ALICE experiment in proton-proton and heavy-ion collisions in a wide range of jet transverse momentum. The jet production cross sections and cross ... More
Probing Majorana neutrinos with double-$β$ decaySep 06 2019A discovery that neutrinos are not the usual Dirac but Majorana fermions, i.e. identical to their antiparticles, would be a manifestation of new physics with profound implications for particle physics and cosmology. Majorana neutrinos would generate neutrinoless ... More
Modeling of GERDA Phase II dataSep 05 2019The GERmanium Detector Array (GERDA) experiment at the Gran Sasso underground laboratory (LNGS) of INFN is searching for neutrinoless double-beta ($0\nu\beta\beta$) decay of $^{76}$Ge. The technological challenge of GERDA is to operate in a background-free ... More
Dielectron production at low transverse momentum in Pb--Pb collisions at $ \sqrt{s_{\mathrm{NN}}}=5.02 $ TeV with ALICESep 05 2019Dielectrons probe a wide range of phenomena in heavy-ion collisions. These include light- and heavy-flavour meson production, thermal radiation and coherent photo-production. The latter process is distinguished by dielectron production at low transverse-pair ... More
Dielectron production at low transverse momentum in Pb-Pb collisions at $ \sqrt{s_{\mathrm{NN}}}=5.02 $ TeV with ALICESep 05 2019Sep 06 2019Dielectrons probe a wide range of phenomena in heavy-ion collisions. These include light- and heavy-flavour meson production, thermal radiation and coherent photo-production. The latter process is distinguished by dielectron production at low transverse-pair ... More
Initial and final state temperatures of antiproton emission sources in high energy collisionsSep 05 2019The momentum or transverse momentum spectra of antiprotons produced at mid-rapidity in proton-helium ($p$+He), gold-gold (Au+Au), deuton-gold ($d$+Au), and lead-lead (Pb+Pb) collisions over an energy range from a few GeV to a few TeV are analyzed by the ... More
Improvement for Color Glass Condensate factorization: single hadron production in pA collisions at next-to-leading orderSep 05 2019High order calculation at semi-hard scale is very important, but a satisfactory calculation framework is still missing. We propose a systematic method to regularize rapidity divergences in the CGC factorization, which makes higher order calculation rigorous ... More
Strangeness production in the new version of the Liège Intra-Nuclear Cascade modelSep 05 2019The capabilities of the new version of the Li\`ege Intra-Nuclear Cascade model (INCL++6) are presented in detail. This new version INCL is able to handle strange particles, such as kaons and the $\Lambda$ particle, and the associated reactions and also ... More
Spin polarizabilities of the proton by measurement of Compton double-polarization observablesSep 04 2019The Compton double-polarization observable $\Sigma_{2z}$ has been measured for the first time in the $\Delta(1232)$ resonance region using a circularly polarized photon beam incident on a longitudinally polarized target at the Mainz Microtron. This paper ... More
Spin polarizabilities of the proton by measurement of Compton double-polarization observablesSep 04 2019Sep 17 2019The Compton double-polarization observable $\Sigma_{2z}$ has been measured for the first time in the $\Delta(1232)$ resonance region using a circularly polarized photon beam incident on a longitudinally polarized target at the Mainz Microtron. This paper ... More
Weak interaction studies at SARAFSep 04 2019We review the current status of the radioisotopes program at the Soreq Applied Research Accelerator Facility (SARAF), where we utilize an electrostatic-ion-beam trap and a magneto-optical trap for studying the nuclear $\beta$-decay from trapped radioactive ... More
Measurement of azimuthal anisotropy of muons from charm and bottom hadrons in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detectorSep 04 2019The elliptic flow of muons from the decay of charm and bottom hadrons is measured in $pp$ collisions at $\sqrt{s}=13$ TeV using a data sample with an integrated luminosity of 150 pb$^{-1}$ recorded by the ATLAS detector at the LHC. The muons from heavy-flavor ... More
Machine Learning based jet momentum reconstruction in Pb-Pb collisions measured with the ALICE detectorSep 04 2019The precise reconstruction of jet transverse momenta in heavy-ion collisions is a challenging task. A major obstacle is the large number of uncorrelated (mainly) low-$p_\mathrm{T}$ particles overlaying the jets. Strong region-to-region fluctuations of ... More
High-resolution conversion electron spectroscopy of the 125I electron-capture decaySep 04 2019The conversion electrons from the decay of the 35.5-keV excited state of 125Te following the electron capture decay of 125I have been investigated at high resolution using an electrostatic spectrometer. The penetration parameter lambda = -1.2(6) and mixing ... More
Global polarization of $Λ$ and $\overlineΛ$ hyperons in Pb-Pb collisions at the LHCSep 03 2019The global polarization of the $\Lambda$ and $\overline\Lambda$ hyperons is measured for Pb-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 2.76 and 5.02 TeV recorded with the ALICE at the LHC. The results are reported differentially as a function of collision ... More
The KLOE-2 experiment: overview of recent resultsSep 03 2019The KLOE detector at the DA$\Phi$NE $\phi$-factory has been operating in two periods from 2001 to 2006 and from 2014 to 2018 collecting a large sample of $\phi$-meson decays. This allowed to perform precision measurements and studies of fundamental symmetries, ... More
The quest of shape coexistence in Zr isotopesSep 02 2019The mass region with A~100 and Z~40 is known to experience a sudden onset of deformation. The presence of the subshell closure $Z=40$ makes feasible to create particle-hole excitations at a moderate excitation energy and, therefore, likely intruder states ... More
Temperatures and chemical potentials at kinetic freeze-out in relativistic heavy ion collisions from coarse grained transport simulationsSep 02 2019Using the UrQMD/coarse graining approach we explore the kinetic freeze-out stage in central Au + Au collisions at various energies. These studies allow to obtain detailed information on the thermodynamic properties (e.g. temperature and chemical potential) ... More
Measurement of $Λ$(1520) production in pp collisions at $\sqrt{s}$ = 7 TeV and p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeVSep 01 2019The production of the $\Lambda$(1520) baryonic resonance has been measured at midrapidity in inelastic pp collisions at $\sqrt{s}$ = 7 TeV and in p-Pb collisions at $\sqrt{s_{\rm{NN}}}$ = 5.02 TeV for non-single diffractive events and in multiplicity ... More
The nucleon axial, tensor and scalar charges and $σ$-terms in lattice QCDSep 01 2019We present results on the nucleon axial, scalar and tensor charges computed within lattice Quantum Chromodynamics. We use three ensembles of gauge configurations generated with physical values of the pion mass to compute these quantities to high accuracy ... More
Color transparency in $\bar p d \to π^- π^0 p$ reactionSep 01 2019We consider exclusive two-pion production in antiproton-deuteron interactions at the beam momenta around 10 GeV/c in the kinematics with large momentum transfer in the underlying hard process $\bar p n \to \pi^- \pi^0$. The calculations are performed ... More
The Shape of the Correlation FunctionAug 31 2019The correlation function measured in ultrarelativistic nuclear collisions is non-Gaussian. By making use of models we discuss and assess how much various effects can influence its shape. In particular, we focus on the parametrisations expressed with the ... More
Low-$Q^2$ empirical parametrizations of the $N^\ast$ helicity amplitudesAug 30 2019The data associated with the electromagnetic excitations of the nucleon ($\gamma^\ast N \to N^\ast$) is usually parametrized by helicity amplitudes at the resonance $N^\ast$ rest frame. The properties of the $\gamma^\ast N \to N^\ast$ transition current ... More
Search for exotic states in photoproduction at GlueXAug 30 2019Quantum Chromodynamics (QCD) is the theory that describes how hadrons are built from quarks and gluons via the strong interaction. Many predictions have been experimentally confirmed, but others remain under experimental investigation. Of particular interest ... More
Kinetic freeze-out temperature from yields of short-lived resonancesAug 30 2019Sep 09 2019A method to determine the kinetic freeze-out temperature in heavy-ion collisions from measured yields of short-lived resonances is presented. The resonance production is treated in the framework of thermal model with an evolution between chemical and ... More
Kinetic freeze-out temperature from yields of short-lived resonancesAug 30 2019A method to determine the kinetic freeze-out temperature in heavy-ion collisions from measured yields of short-lived resonances is presented. The resonance production is treated in the framework of thermal model with an evolution between chemical and ... More
$\bf ^{12}{C} + {}^{16}{O}$ molecular resonances at deep sub-barrier energyAug 30 2019The existence of $^{12}{\rm C} + {}^{16}{\rm O}$ molecular resonances at sub-barrier energy has been a significant problem in nuclear astrophysics because they strongly affect the $^{12}{\rm C} + {}^{16}{\rm O}$ fusion reaction rate in type Ia supernovae ... More
Charged-hadron suppression in Pb+Pb and Xe+Xe collisions measured with the ATLAS detectorAug 30 2019The ATLAS detector at the LHC recorded 0.49nb$^{-1}$ of Pb+Pb collisions and 25pb$^{-1}$ of $pp$ collisions, both at the center-of-mass energy 5.02TeV per nucleon pair. Recently, ATLAS also recorded 3$\mu$b$^{-1}$ of Xe+Xe collisions at the center-of-mass ... More
Normal and intruder configurations in $^{34}$Si populated in the $β^-$ decay of $^{34}$Mg and $^{34}$AlAug 30 2019The structure of $^{34}$Si was studied through $\gamma$ spectroscopy separately in the $\beta^-$ decays of $^{34}$Mg and $^{34}$Al at the ISOLDE facility of CERN. Different configurations in $^{34}$Si were populated independently from the two recently ... More
Theoretical interpretation of the $D^+_s \to π^+ π^0 η$ decay and the nature of $a_0(980)$Aug 30 2019In a recent paper~\cite{Ablikim:2019pit}, the BESIII collaboration reported the so-called first observation of pure $W$-annihilation decays $D^+_s \to a^+_0(980) \pi^0$ and $D_s^+ \to a^0_0(980)\pi^+$. The measured absolute branching fractions are, however, ... More
Review of predictions of hard probes in $p+$Pb collisions at $\sqrt{s_{NN}} = 5.02$ and 8.16 TeV and comparison with dataAug 30 2019Predictions have been compiled for the $p+$Pb LHC runs, focusing on production of hard probes in cold nuclear matter. These predictions were first made for the $\sqrt{s_{_{NN}}} = 5.02$ TeV $p+$Pb run and were later compared to the available data. A similar ... More
Experimental searches for rare alpha and beta decaysAug 29 2019The current status of the experimental searches for rare alpha and beta decays is reviewed. Several interesting observations of alpha and beta decays, previously unseen due to their large half-lives ($10^{15} - 10^{20}$ yr), have been achieved during ... More
Impact of $^{16}$O($e,e'α$)$^{12}$C measurements on the $^{12}$C($α,γ$)$^{16}$O astrophysical reaction rateAug 29 2019The $^{12}$C($\alpha,\gamma$)$^{16}$O reaction, an important component of stellar helium burning, has a key role in nuclear astrophysics. It has direct impact on the evolution and final state of massive stars and also influences the elemental abundances ... More
Electroweak probes of ground state densitiesAug 28 2019Elastic electron scattering has been used to paint the most accurate picture of the proton distribution in atomic nuclei. Spurred by new experimental developments, it is now possible to gain valuable insights into the neutron distribution using exclusively ... More
Moments of nucleon generalized parton distributions from lattice QCD simulations at physical pion massAug 28 2019We present results for the moments of nucleon isovector vector and axial generalized parton distribution functions computed within lattice QCD. Three ensembles of maximally twisted mass clover-improved fermions simulated with a physical value of the pion ... More
Moments of nucleon generalized parton distributions from lattice QCD simulations at physical pion massAug 28 2019Sep 01 2019We present results for the moments of nucleon isovector vector and axial generalized parton distribution functions computed within lattice QCD. Three ensembles of maximally twisted mass clover-improved fermions simulated with a physical value of the pion ... More
Possible Formation of QGP-droplets in Proton-Proton Collisions at the CERN Large Hadron ColliderAug 28 2019Proton-proton (pp) collisions have been traditionally used as a baseline measurement in the search for a deconfined state of matter in heavy-ion collisions at ultrarelativistic energies. The unprecedented collision energies that are available at the Large ... More
Gluonic Probe for the Short Range Correlation in NucleusAug 27 2019We investigate the gluonic probe to the nucleon-nucleon short range correlation (SRC) in nucleus through heavy flavor production in deep inelastic scattering (DIS). The relevant EMC effects of $F_2^{c\bar c}$ structure function will provide a universality ... More
Influence of the neutron-skin effect on nuclear isobar collisions at RHICAug 27 2019The unambiguous observation of a Chiral Magnetic Effect (CME)-driven charge separation is the core aim of the isobar program at RHIC consisting of ${^{96}_{40}}$Zr+${^{96}_{40}}$Zr and ${^{96}_{44}}$Ru+${^{96}_{44}}$Ru collisions at $\sqrt {s_{\rm NN}}\!=\!200$ ... More
The back-to-back relative excess observable in search for the chiral magnetic effectAug 27 2019$\textbf{Background:}$ The chiral magnetic effect (CME) is extensively studied in heavy-ion collisions at RHIC and LHC. In the commonly used reaction plane (RP) dependent, charge dependent azimuthal correlator ($\Delta\gamma$), both the close and back-to-back ... More
The Exposure-Background Duality in the Searches of Neutrinoless Double Beta DecayAug 27 2019Tremendous efforts are required to scale the summit of observing neutrinoless double beta decay ($0 \nu \beta \beta$). This article quantitatively explores the interplay between exposure (target mass X data taking time) and background levels in $0 \nu ... More
Vector analyzing powers in the $d(p,pp)n$ and $d(p,{\rm{^{2}He}})n$ channels at 135 MeVAug 27 2019Vector analyzing powers, $A_x$ and $A_y$, of the proton-deuteron break-up reaction have been measured by using a polarized-proton beam at 135 MeV impinging on a liquid-deuterium target. For the experiment, the Big Instrument for Nuclear-polarization Analysis ... More