Latest in nucl-th

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Effect of in-medium $π$ and $η$ propagators to charge symmetry breaking interactionMay 16 2019We revisit the charge symmetry breaking $(CSB)$ in nucleon-nucleon $(NN)$ interaction caused by $\pi$-$\eta$ mixing in nuclear matter $(NM)$ employing one boson exchange $(OBE)$ model. The medium effect on $CSB$ is incorporated through the in-medium $\pi$ ... More
The onset of $ΛΛ$ hypernuclear bindingMay 16 2019Binding energies of light, $A\leq 6$, $\Lambda\Lambda$ hypernuclei are calculated using the stochastic variational method in a pionless effective field theory (EFT) approach at leading order with the purpose of assessing critically the onset of binding ... More
Coherent and incoherent vector meson electroproduction in the future electron - ion colliders: the hot - spot predictionsMay 16 2019One of the more promising observables to probe the high energy regime of the QCD dynamics in the future Electron - Ion Colliders (EIC) is the exclusive vector meson production cross section in coherent and incoherent interactions. Such processes measure ... More
Disentangling the pair and quartet condensatesMay 16 2019We study the nontrivial interplay of the well known \emph{pairing} and the more complex \emph{quarteting} correlations in the particular case of $N>Z$ atomic nuclei. Within the new Analytical Disentangled Condensate model, by implementing the notion of ... More
Quantitative description of the $^{20}$Ne($p$,$pα$)$^{16}$O cross section for probing the surface $α$ amplitudeMay 16 2019The proton-induced $\alpha$ knockout reaction has been utilized for decades to investigate the $\alpha$ cluster states of nuclei, of the ground state in particular. However, even in recent years, it is reported that the deduced $\alpha$ spectroscopic ... More
Search for stabilizing effects of $\bm{Z=82}$ shell closure against fissionMay 16 2019Presence of closed proton and/or neutron shells causes deviation from macroscopic properties of nuclei which are understood in terms of the liquid drop model. It is important to investigate experimentally the stabilizing effects of shell closure, if any, ... More
Strong Coupling Universality at Large N for Pure CFT Thermodynamics in 2+1 dimensionsMay 15 2019Pure CFTs have vanishing $\beta$-function at any value of the coupling. One example of a pure CFT is the O(N) Wess-Zumino model in 2+1 dimensions in the large N limit. This model can be analytically solved at finite temperature for any value of the coupling, ... More
Valence parton distribution function of pion from fine latticeMay 15 2019We present a lattice QCD study of valence parton distribution inside the pion within the framework of Large Momentum Effective Theory. We use a mixed action approach with 1-HYP smeared valence Wilson clover quarks on 2+1 flavor HISQ sea with the valence ... More
Nuclear Dominated Accretion Flows in Two Dimensions. II. Ejecta dynamics and nucleosynthesis for CO and ONe white dwarfsMay 15 2019We study mass ejection from accretion disks formed in the merger of a white dwarf with a neutron star or black hole. These disks are mostly radiatively-inefficient and support nuclear fusion reactions, with ensuing outflows and electromagnetic transients. ... More
Extrapolation of nuclear structure observables with artifical neural networksMay 15 2019Calculations of nuclei are often carried out in finite model spaces. Thus, finite-size corrections enter, and it is necessary to extrapolate the computed observables to infinite model spaces. In this work, we employ extrapolation methods based on artificial ... More
Model-independent form-factor constraints for electromagnetic spin-1 currentsMay 15 2019Using local gauge invariance in the form of the Ward--Takahashi identity (which provides an \emph{off-shell} constraint) and the fact that properly constructed current operators must be free of singularities, it is shown that the magnetic moment $\mu$ ... More
Aspects of the QCD $θ$-vacuumMay 15 2019This paper addresses two aspects concerning the $\theta$-vacuum of Quantum Chromodynamics. First, large-$N_c$ chiral perturbation theory is used to calculate the first two non-trivial cumulants of the distribution of the winding number, i.\,e. the topological ... More
Statistical properties of thermal neutron capture cross section calculated with randomly generated resonance parametersMay 15 2019We investigated the probability distribution of the thermal neutron capture cross section ($\sigma_{th}$) deduced stochastically with the resonance parameters randomly sampled from Wigner and Porter-Thomas distributions. We found that the typical probability ... More
Bound to unbound states transitions of heavy quarkonia in the cooling phase of QGPMay 15 2019Emphasizing the possibility of moderate suppression of heavy quarkonium states, we invite some attention towards the issue of real time evolution of quarkonia during the cooling phase of quark gluon plasma(QGP). In this context, we have used time dependent ... More
Roles of crust and core in the tidal deformability of neutron starsMay 15 2019With the recent measurement of GW170817 providing constraints on the tidal deformability of a neutron star, it is very important to understand what features of the equation of state have the biggest effect on it. We therefore study the contribution of ... More
Hadronization within Non-Extensive Approach and the Evolution of the ParametersMay 14 2019We review transverse momentum distributions of various identified charged particles stemming from high energy collisions fitted by various non-extensive distributions as well as by the usual Boltzmann-Gibbs statistics. We investigate the best-fit formula ... More
Heavy quarkonium suppression beyond the adiabatic limitMay 14 2019Many prior studies of in-medium quarkonium suppression have implicitly made use of an adiabatic approximation in which it was assumed that the heavy quark potential is a slowly varying function of time. In the adiabatic limit, one can separately determine ... More
Compton Scattering off Pions and Electromagnetic PolarizabilitiesMay 14 2019The electric ($\alpha_\pi$) and magnetic ($\beta_\pi$) Compton polarizabilities of both the charged and the neutral pion are of fundamental interest in the low-energy sector of quantum chromodynamics (QCD). Pion polarizabilities affect the shape of the ... More
Hyperon I: Study of the $Λ(1405)$May 14 2019Low-energy data on the three charge states in $\gamma p \to K^+(\Sigma\pi)$ from CLAS at JLab, on $K^-p\to \pi^0\pi^0\Lambda$ and $\pi^0\pi^0\Sigma$ from the Crystal Ball at BNL, bubble chamber data on $K^-p\to\pi^-\pi^+\pi^{\pm}\Sigma^{\mp}$, low-energy ... More
Rossby modes in neutron stars as sources of gravitational wavesMay 14 2019In the present work, we explore the Rossby mode instabilities in neutron stars as sources of gravitational waves. The intensity and time evolution of the emitted gravitational waves in terms of the amplitude of the strain tensor are estimated in the slow ... More
Thermodynamic Geometry of Nambu -- Jona Lasinio modelMay 13 2019The formalism of Riemannian geometry is applied to study the phase transitions in Nambu -Jona Lasinio (NJL) model. Thermodynamic geometry reliably describes the phase diagram, both in the chiral limit and for finite quark masses. The comparison between ... More
Extracting free-space observables from trapped interacting clustersMay 13 2019The energy spectrum of two short-range interacting particles in a harmonic potential trap has previously been related to free-space scattering phase shifts. But the existing formula for this purpose is exact only in the limit of an infinitely shallow ... More
The Photon and Light $1^{--}$ MesonsMay 13 2019In this paper we look into the world data related to the photon and the connection to light mesons with the same spin parity quantum number as the photon $J^p = 1^-$.
Symmetry, symmetry breaking, and pion parton distributionsMay 13 2019A symmetry-preserving approach to the two valence-body continuum bound-state problem is used to calculate the valence, glue and sea distributions within the pion; unifying them with, inter alia, the electromagnetic pion elastic and transition form factors. ... More
Thermal radiation and inclusive production in the KLN model for ion-ion collisionsMay 13 2019We show that in order to obtain a successful description of the transverse momenta distribution for charged particles in ion-ion collisions, one must include a thermal emission term. The temperature of this emission $T_{\rm th}$ turns out to be proportional ... More
Flow in AA and pA as an interplay of fluid-like and non-fluid like excitationsMay 13 2019To study the microscopic structure of quark-gluon plasma, data from hadronic collisions must be confronted with models that go beyond fluid dynamics. Here, we study a simple kinetic theory model that encompasses fluid dynamics but contains also particle-like ... More
High-temperature expansion of the viscosity in interacting quantum gasesMay 13 2019We compute the frequency-dependent shear and bulk viscosity spectral functions of an interacting Fermi gas in a quantum virial expansion up to second quadratic order in the fugacity parameter $z=e^{\beta \mu}$, which is small at high temperatures. Calculations ... More
$d$-dimensional Lüscher's formula and the near-threshold three-body states in a finite volumeMay 13 2019We study two particles colliding in a $d$-dimensional finite volume and generalize L\"uscher's formula to arbitrary $d$ spatial dimensions. We obtain the $s$- and $p$-wave approximations of the generalized L\"uscher's formula. For resonant $s$- or $p$-wave ... More
Direct comparison between Bayesian and frequentist uncertainty quantification for nuclear reactionsMay 13 2019Until recently, uncertainty quantification in low energy nuclear theory was typically performed using frequentist approaches. However in the last few years, the field has shifted toward Bayesian statistics for evaluating confidence intervals. Although ... More
Parity Doubling and the Dense Matter Phase Diagram under Constraints from Multi-Messenger AstronomyMay 13 2019We extend the recently developed hybrid quark-meson-nucleon model by augmenting a six-point scalar interaction and investigate the consequences for neutron-star sequences in the mass-radius diagram. The model has the characteristic feature that, at increasing ... More
Optimal neutron-star mass ranges to constrain the equation of state of nuclear matter with electromagnetic and gravitational-wave observationsMay 13 2019Exploiting a very large library of physically plausible equations of state (EOSs) containing more than $10^{7}$ members and yielding more than $10^{9}$ stellar models, we conduct a survey of the impact that a neutron-star radius measurement via electromagnetic ... More
How to Test the Two-Families ScenarioMay 12 2019We shortly summarize the two-families scenario in which both hadronic stars and strange quark stars can exist and we describe the main predictions one can obtain from it. We then concentrate on the observables that most likely will be measured in the ... More
Mean-Field Theory for Fermion Pairs and the ab initio Particle-Vibration-Coupling ApproachMay 12 2019A Dyson Bethe-Salpeter equation (Dyson-BSE) for fermion pairs is presented whose kernel has a static and a one frequency dependent contribution, analogous to the self energy of the single particle Dyson equation with the (static) mean field term and the ... More
A diquark model for the d*(2380) dibaryon resonance?May 12 2019Diquark models have been applied with varying degree of success to tetraquark and pentaquark states involving both light and heavy quark degrees of freedom. We discuss the applicability of such models to light quark dibaryons, viewed as three-diquark ... More
Valence Neutron-Proton Orientation in Atomic NucleiMay 12 2019It is shown that the renormalized nuclear deformations in different mass regions can be globally scaled by two probability partition factors of Boltzmann-like distribution, which are derived from the competing valence $np$ and like-nucleon interactions. ... More
Eigenvalues and eigenstates of the many-body collective neutrino oscillation problemMay 10 2019We demonstrate a method to systematically obtain eigenvalues and eigenstates of a many-body Hamiltonian describing collective neutrino oscillations. The method is derived from the Richardson-Gaudin framework, which involves casting the eigenproblem as ... More
A First Determination of Parton Distributions with Theoretical UncertaintiesMay 10 2019The parton distribution functions (PDFs) which characterize the structure of the proton are currently one of the dominant sources of uncertainty in the predictions for most processes measured at the Large Hadron Collider (LHC). Here we present the first ... More
Internal particle width effects on the the triangle singularity mechanism in the study of the $η(1405)$ and $η(1475)$ puzzleMay 10 2019In this article, the analyticity of triangle loop integral with complex masses of internal particles is discussed in a new perspective, base on which we obtain the explicit width dependence of the absorptive part of the triangle amplitude. We reanalyze ... More
Energy of the $^{229}$Th nuclear clock transitionMay 10 2019The first nuclear excited state of $^{229}$Th offers the unique opportunity for laser-based optical control of a nucleus. Its exceptional properties allow for the development of a nuclear optical clock which offers a complementary technology and is expected ... More
Is the structure of 42Si understood?May 10 2019A more detailed test of the implementation of nuclear forces that drive shell evolution in the pivotal nucleus \nuc{42}{Si} -- going beyond earlier comparisons of excited-state energies -- is important. The two leading shell-model effective interactions, ... More
The hidden charm pentaquark states and $Σ_c\bar{D}^{(*)}$ interaction in chiral perturbation theoryMay 10 2019In this work, we employ the heavy hadron chiral perturbation theory (HHChPT) to calculate the $\Sigma_c\bar{D}^{(*)}$ potentials to the next-to-leading order. The contact, the one-pion exchange and the two-pion exchange interactions are included. Besides, ... More
Lattice QCD Study of the Nucleon-Charmonium InteractionMay 10 2019The $J/\psi$-nucleon interaction is studied by lattice QCD calculations. At the leading order of the derivative expansion, the interaction consists of four terms: the central, the spin-spin, and two types of tensor forces. We determine these spin-dependent ... More
Production of exotic tetraquarks $QQ\bar{q}\bar{q}$ in heavy-ion collisions at the LHCMay 09 2019We investigate the production of exotic tetraquarks, $QQ\bar{q}\bar{q} \equiv T_{QQ}$ ($Q=c$ or $b$ and $q=u$ or $d$), in relativistic heavy-ion collisions using the quark coalescence model. The $T_{QQ}$ yield is given by the overlap of the density matrix ... More
Comparaison between Coulomb and Hulthèn potentials within Bohr Hamiltonian for $γ$-rigid nuclei in the presence of minimal lengthMay 09 2019In this work we solve the Schr\"odinger equation for Bohr Hamiltonian with Coulomb and Hulth\'en potentials within the formalism of minimal length in order to obtain analytical expressions for the energy eigenvalues and eigenfunctions by means of asymptotic ... More
Novel implementation of the multipole expansion to quarkonium hadronic transitionsMay 09 2019We compute hadronic transitions between heavy quarkonium states with two, or one, pion/eta particles in the final state. We use the multipole expansion but not the twist expansion. The latter cannot be justified for the energy release of hadronic transitions ... More
Strange quark suppression from a simultaneous Monte Carlo analysis of parton distributions and fragmentation functionsMay 09 2019We perform the first simultaneous extraction of unpolarized parton distributions and fragmentation functions from a Monte Carlo analysis of inclusive and semi-inclusive deep-inelastic scattering, Drell-Yan lepton-pair production, and single-inclusive ... More
Diffractive dijet production in impact parameter dependent saturation modelsMay 09 2019We study coherent diffractive dijet production in electron-hadron and electron-nucleus collisions within the dipole picture. We provide semi-analytic results for the differential cross section and elliptic anisotropy in the angle between dijet transverse ... More
Characterization of vorticity in pygmy resonances and soft-dipole modes with two-nucleon transfer reactionsMay 09 2019The properties of the two-quasiparticle-like soft E1-modes and PDR have been and are systematically studied with the help of inelastic and electromagnetic experiments which essentially probe the particle-hole components of these vibrations. It is shown ... More
Constraint on the maximum mass of neutron stars using GW170817 eventMay 09 2019May 12 2019We revisit the constraint on the maximum mass of cold spherical neutron stars coming from the observational results of GW170817. We develop a new framework for the analysis, which is more strict than previous ones, by employing both energy and angular ... More
Constraint on the maximum mass of neutron stars using GW170817 eventMay 09 2019We revisit the constraint on the maximum mass of cold spherical neutron stars coming from the observational results of GW170817. We develop a new framework for the analysis, which is more strict than previous ones, by employing both energy and angular ... More
A still unsettled issue in the nucleon spin decomposition problem : On the role of surface terms and gluon topologyMay 09 2019In almost all the past analyses of the decomposition of the nucleon spin into its constituents, surface terms are simply assumed to vanish and not to affect the integrated sum rule of the nucleon spin. However, several authors claim that neglect of surface ... More
Where we stand on structure dependence of ISGMR in the Zr-Mo region: Implications on K_\inftyMay 08 2019Isoscalar giant resonances, being the archetypal forms of collective nuclear behavior, have been studied extensively for decades with the goal of constraining bulk nuclear properties of the equation of state, as well as for modeling dynamical behaviors ... More
Chiral symmetry breaking, entanglement, and the nucleon spin decompositionMay 08 2019The nucleon is naturally viewed as a bipartite system of valence spin -- defined by its non-vanishing chiral charge -- and non-valence or sea spin. The sea spin can be traced over to give a reduced density matrix, and it is shown that the resulting entanglement ... More
Polarization transfer in hyperon decays and its effect in relativistic nuclear collisionsMay 08 2019May 09 2019We calculate the contribution to the polarization of $\Lambda$ hyperons in relativistic nuclear collisions at high energy from the decays of $\Sigma^*(1385)$ and $\Sigma^0$, which are the predominant sources of $\Lambda$ production besides the primary ... More
Polarization transfer in hyperon decays and its effect in relativistic nuclear collisionsMay 08 2019We calculate the contribution to the polarization of $\Lambda$ hyperons in relativistic nuclear collisions at high energy from the decays of $\Sigma^*(1385)$ and $\Sigma^0$, which are the predominant sources of $\Lambda$ production besides the primary ... More
Feed-down effect on $Λ$ spin polarizationMay 08 2019We develop a theoretical framework to study the feed-down effect of higher-lying strange baryons on the spin polarization of $\Lambda$ hyperon. In this framework, we consider two-body decays through strong, electromagnetic, and weak processes and derive ... More
Mutual derivation between arbitrary distribution forms of momenta and momentum componentsMay 08 2019The mutual derivation between arbitrary distribution forms of momenta and momentum components of particles produced in an isotropic emission source are systematically studied in terms of probability theory and mathematical statistics. The distributions ... More
Critical end points in (2+1)-flavor QCD with imaginary chemical potentialMay 08 2019We present here the results from an ongoing determination of the critical quark mass in simulations of (2+1)-flavor QCD with an imaginary chemical potential. Studies with unimproved actions found the existence of a critical quark mass value at which the ... More
Restoration of pseudo-spin symmetry in $N=32$ and $34$ isotones described by relativistic Hartree-Fock theoryMay 08 2019Restoration of pseudo-spin symmetry (PSS) along the $N=32$ and $34$ isotonic chains and the physics behind are studied by applying the relativistic Hartree-Fock theory with effective Lagrangian PKA1. Taking the proton pseudo-spin partners $(\pi2s_{1/2},\pi1d_{3/2})$ ... More
Ab Inito Simulations of Light Nuclear Systems Using Eigenvector Continuation and Auxiliary Field Monte CarloMay 07 2019In this work, we discuss a new method for calculation of extremal eigenvectors and eigenvalues in systems or regions of parameter space where direct calculation is problematic. This technique relies on the analytic continuation of the power series expansion ... More
Yields of weakly-bound light nuclei as a probe of the statistical hadronization modelMay 07 2019The statistical hadronization model is a simple and efficient phenomenological framework in which the relative yields for very high energy heavy ion collisions are essentially determined by a single model parameter---the chemical freeze-out temperature. ... More
Partonic angular momentum in the nucleon's chiral peripheryMay 07 2019We study the nucleon's partonic angular momentum (AM) content at peripheral transverse distances $b = \mathcal{O}(M_\pi^{-1})$, where the structure is governed by chiral dynamics. We compute the nucleon form factors of the energy-momentum tensor in chiral ... More
Cross sections at sub-Coulomb energies: full optical model vs.\ barrier transmission for $^{40}$Ca + $α$May 07 2019Cross sections for $^{40}$Ca + $\alpha$ at low energies have been calculated from two different models and three different $\alpha$-nucleus potentials. The first model determines the cross sections from the barrier transmission in a real nuclear potential. ... More
Scattering phase shifts and mixing angles for an arbitrary number of coupled channels on the latticeMay 07 2019We present a lattice method for determining scattering phase shifts and mixing angles for the case of an arbitrary number of coupled channels. Previous lattice studies were restricted to mixing of up to two partial waves for scattering of two spin-$1/2$ ... More
Spin-isospin Kondo effects for $Σ_{c}$ and $Σ_{c}^{\ast}$ baryons and $\bar{D}$ and $\bar{D}^{\ast}$ mesonsMay 07 2019We study the Kondo effect for a $\Sigma_{c}$ ($\Sigma_{c}^{\ast}$) baryon in nuclear matter. In terms of the spin and isospin ($\mathrm{SU}(2)_{\mathrm{spin}} \times \mathrm{SU}(2)_{\mathrm{isospin}}$) symmetry, the heavy-quark spin symmetry and the S-wave ... More
Systematic study of $\mathcalα$ decay half-lives based on Gamow--like model with a screened electrostatic barrierMay 07 2019In the present work we systematically study $\mathcal{\alpha}$ decay half-lives of $Z>51$ nuclei using the modified Gamow-like model which includes the effects of the centrifugal potential and electrostatic shielding. For the case of even-even nuclei, ... More
Neutron capture cross sections from surrogate reaction data and theory: connecting the pieces with a Markov-Chain Monte Carlo approachMay 07 2019The neutron capture cross section for $^{90}Zr(n, \gamma)$ has recently been determined using surrogate $^{92}Zr(p, d\gamma)$ data and nuclear reaction theory. That work employed an approximate fitting method based on Bayesian Monte Carlo sampling to ... More
Charmonium-nucleon interactions from 2+1 flavor lattice QCDMay 07 2019The charmonium-nucleon interaction is studied by the time-dependent HAL QCD method. We use a larger lattice volume and the relativistic heavy quark action for charm quark to obtain less systematic errors than those in our previous study. As a result, ... More
Comment on "Searching for flavor dependence in nuclear quark behavior"May 06 2019Weinstein, et. al [1] [PRL 106, 052301 (2011)] and Hen, et. al [2] [PRC 85, 047301 (2012)] observed a correlation between the EMC effect and the amount of short range correlated (SRC) pairs in nuclei which implies that quark distributions are different ... More
Insights on Skyrme parameters from GW170817May 06 2019The binary neutron-star merger event, GW170817, has cast a new light on nuclear physics research. Using a neutron-star model that includes a crust equation of state (EoS), we calculate the properties of a 1.4 solar-mass neutron star. The model incorporates ... More
Towards baryon-baryon scattering in manifestly Lorentz-invariant formulation of SU(3) baryon chiral perturbation theoryMay 06 2019We study baryon-baryon scattering by applying time-ordered perturbation theory to the manifestly Lorentz-invariant formulation of SU(3) baryon chiral perturbation theory. We derive the corresponding diagrammatic rules paying special attention to complications ... More
Magnetized baryons and the QCD phase diagram: NJL model meets the latticeMay 06 2019We determine the baryon spectrum of 1 + 1 + 1-flavor QCD in the presence of strong background magnetic fields using lattice simulations at physical quark masses for the first time. Our results show a splitting within multiplets according to the electric ... More
First principles electromagnetic responses in medium-mass nucleiMay 06 2019We review the recent progress made in the computation of electromagnetic response functions in light and medium-mass nuclei using coupled-cluster theory. We show how a many-body formulation of the Lorentz integral transform method allows to calculate ... More
First observation of the directed flow of $D^{0}$ and $\overline{D^0}$ in Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 200~GeVMay 06 2019We report the first measurement of rapidity-odd directed flow ($v_{1}$) for $D^{0}$ and $\overline{D^{0}}$ mesons at mid-rapidity ($|y| < 0.8$) in Au+Au collisions at $\sqrt{s_{\rm NN}}$ = 200\,GeV using the STAR detector at the Relativistic Heavy Ion ... More
Unified Analyses of Multiplicity Distributions and Bose-Einstein Correlations at the LHC using Double-Stochastic DistributionsMay 06 2019We analyze data on multiplicity distributions (MD) at Large Hadron Collider (LHC) energies using a double-negative binomial distribution (D-NBD) and double-generalized Glauber-Lachs formula (D-GGL). Moreover, we investigate the Bose-Einstein correlation ... More
Operator Relations for Gravitational Form FactorsMay 06 2019The form factors for the hadron matrix element of the QCD energy-momentum tensor not only describe the coupling of the hadron with a graviton as the ``gravitational form factors'', but also serve as unique quantities for describing the shape inside the ... More
Gross, intermediate and fine structure of nuclear giant resonances: Evidence for doorway statesMay 06 2019We review the phenomenon of fine structure of nuclear giant resonances and its relation to different resonance decay mechanisms. Wavelet analysis of the experimental spectra provides quantitative information on the fine structure in terms of characteristic ... More
Universal scaling of meson and baryon spectra in p-Pb collisions at 5.02 TeVMay 06 2019We systematically investigate the scaling property of mesons (pions and kaons) and baryons (protons, ${\rm \Lambda}$, ${\rm \Xi}$ and ${\rm \Omega}$) transverse momentum ($p_{\rm T}$) spectra at different centrality classes (0-5$\%$, 5-10$\%$, 10-20$\%$, ... More
Estimating the variation of neutron star observables by symmetric dense nuclear matter propertiesMay 06 2019Recent multi-channel astrophysics observations and the soon-to-be published new measured electromagnetic and gravitation data provide information on the inner structure of the compact stars. These macroscopic observations can significantly increase our ... More
Equation of states and charmonium suppression in Heavy ion collisionsMay 06 2019The present article is the follow-up of our work Bottomonium suppression in quasi-particle model, where we have extended the study for charmonium states using quasi-particle model in terms of quasi-gluons and quasi quarks/antiquarks as a equation of state. ... More
Lambda-proton and lambda-neutron potentials within Gel'fand-Levitan-Marchenko theoryMay 06 2019Spin-dependent potentials for lambda-proton and lambda-neutron interactions are recovered from scattering data using Gel'fand-Levitan-Marchenko inversion theory. Due to experimental difficulties arising from the short lifetimes of hyperons, available ... More
Integer and half-integer channel spins for elastic scattering cross sectionsMay 06 2019We present the analytical expressions for the differential cross sections and independent partial amplitudes for elastic scattering of nuclear particles for channels with a spin value of 1/2, 1, 3/2, 2 and 5/2. The independent partial amplitudes are presented ... More
Production of a 4He_Lambda hypernucleus in the 4He(pi, K) reactions revisitedMay 06 2019We investigate theoretically production cross sections of the $J^\pi=$ 0$^+$ ground state of a $^4_\Lambda$He hypernucleus in the $^4$He($\pi$,~$K$) reaction with a distorted-wave impulse approximation using the optimal Fermi-averaged $\pi N\to K\Lambda$ ... More
Calculated Inter-band B(E2)'s in the p-f ShellMay 05 2019Whereas previous works for B(E2)'s in the even-even Ti isotopes focused on yrast transitions we here also consider inter-band transitions to a second group i.e. states like 1_{1} , 2_{2}, 3_{1} , 4_{2} , 5_{1}e.t.c.. We focus on variations from one even-even ... More
$^{21}$Ne level structure in the resonance $^{17}$O+$α$ elastic scatteringMay 04 2019The first study of resonances in $^{17}$O+$\alpha$ elastic scattering was carried out using the Thick Target Inverse Kinematics (TTIK) method. The data were analyzed in the framework of an $\textit{R}$-matrix approach. Many $\alpha$-cluster states were ... More
The Giant Pairing Vibration in Heavy Nuclei: Present Status and Future StudiesMay 03 2019The Giant Pairing Vibration, a two-nucleon collective mode originating from the second shell above the Fermi surface, has long been predicted and expected to be strongly populated in two-nucleon transfer reactions with cross sections similar to those ... More
Nucleon isovector charges and twist-2 matrix elements with $N_f=2+1$ dynamical Wilson quarksMay 03 2019We present results from a lattice QCD study of nucleon matrix elements at zero momentum transfer for local and twist-2 isovector operator insertions. Computations are performed on gauge ensembles with non-perturbatively improved $N_f=2+1$ Wilson fermions, ... More
Combined Rastall and Rainbow theories of gravity with applications to neutron starsMay 03 2019The possibility of modifications on general relativity is investigated. We propose an alternative theory of gravity constructed with the combination of Rastall and Rainbow theories. The hydrostatic equilibrium equations are obtained in order to test the ... More
Finite-Size Effects in Heavy Halo Nuclei from Effective Field TheoryMay 03 2019Halo/Cluster Effective Field Theory describes halo/cluster nuclei in an expansion in the small ratio of the size of the core(s) to the size of the system. Even in the point-particle limit, neutron halo nuclei have a finite charge radius, because their ... More
Effects of Weak Decay and Hadronic Scattering on the Proton Number Fluctuations in Au + Au Collisions at $\sqrt{s_\mathrm{NN}} = 5$ GeV from JAM ModelMay 03 2019Proton number fluctuation is sensitive observable to search for the QCD critical point in heavy-ion collisions. To estimate the non-critical contributions, we studied the effects of weak decay and hadronic scattering on proton number fluctuation and its ... More
QCD equation of state at finite baryon density with fugacity expansionMay 03 2019We explore the QCD equation of state at finite baryon density through an expansion in baryon number fugacity, making use of the recent lattice data on the four leading Fourier coefficients of the expansion. A state-of-the-art description of the lattice ... More
Effective repulsion in dense quark matter from non-perturbative gluon exchangeMay 03 2019A moderately strong vector repulsion between quarks in dense quark matter is needed to explain how a quark core can support neutron stars heavier than two solar masses. We study this repulsion, parametrized by a four-fermion interaction with coupling ... More
Dark matter and bubble nucleation in old neutron starsMay 02 2019We study the probability for nucleation of quark matter droplets in the dense cold cores of old neutron stars induced by the presence of a self-annihilating dark matter component, $\chi$. Using a parameterized form of the equation of state for hadronic ... More
Equation of state for hot QCD and compact stars from a mean field approachMay 02 2019The thermodynamic properties of high temperature and high density QCD-matter are explored within the Chiral SU(3)-flavor parity-doublet Polyakov-loop quark-hadron mean-field model, CMF. The quark sector of the CMF model is tuned to describe the $\mu_B=0$ ... More
Diffractive excitation in $pp$ and $pA$ collisions at high energiesMay 02 2019In this paper we consider the Good - Walker approach for the diffractive excitation and updated the Miettinen -- Pumplin (MP) model for $pp/\bar{p}p$ collisions considering the recent LHC data for the total and elastic $pp$ cross sections. The behavior ... More
Nonlocalized Clustering and Evolution of Cluster Structure in NucleiMay 02 2019We explain various facets of the THSR (Tohsaki-Horiuchi-Schuck-R\"opke) wave function. We first discuss the THSR wave function as a wave function of cluster-gas state, since the THSR wave function was originally introduced to elucidate the 3$\alpha$-condensate-like ... More
Electromagnetic properties of the $d^*(2380)$ hexaquarkMay 02 2019Experiments with intense photon and electron beams have the potential to provide access to nontrivial properties of the recently discovered $d^*(2380)$ hexaquark including its size, structure, magnetic moment, quadrupole and octupole deformations. In ... More
Role of crustal physics in the tidal deformation of a neutron starMay 02 2019In the late inspiral phase, gravitational waves from binary neutron star mergers carry the imprint of the equation of state due to the tidally deformed structure of the components. If the stars contain solid crusts, then their shear modulus can affect ... More
Net-proton number fluctuations in the presence of the QCD critical pointMay 02 2019Event-by-event fluctuations of the net-proton number studied in heavy-ion collisions provide an important means in the search for the conjectured chiral critical point (CP) in the QCD phase diagram. We propose a phenomenological model in which the fluctuations ... More
$Ξ(1690)^-$ resonance production via $K^-p \to K^+K^-Λ$May 02 2019In this talk, we investigate $\Xi(1690)^-$ production from the $K^-p\to K^+K^-\Lambda$ reaction wit the effective Lagrangian method and consider the $s$- and $u$-channel $\Sigma/\Lambda$ ground states and resonances for the $\Xi$-pole contributions, in ... More