The previous thermodynamic treatment for models with density and/or temperature dependent quark masses is shown to be inconsistent the requirement of fundamental thermodynamics. We therefore study a fully self-consistent one according differential equation After obtaining new mass scaling inclusion both confinement and leading-order perturbative interactions, we investigate properties strange matter in consistent treatment. It found that state become stiffer, accordingly, maximum stars as...

The production of new proton-rich nuclei in the vicinity 100Sn is investigated via multinucleon transfer reactions within framework microscopic time-dependent Hartree-Fock (TDHF) and statistical model GEMINI++. TDHF+GEMINI method has demonstrated reliable description dynamics agreement between theoretical results experimental data quite satisfactory observed reactions. We reveal cross sections region to be several orders magnitude higher than those measured fusion-evaporation projectile...

Because of the mass density-dependence, an extra term should be added to expression pressure. However, it not appear in that energy according both general ensemble theory and basic thermodynamic principle. We give a detail derivation thermodynamics with density-dependent particle masses. With our recently determined quark scaling, we study strange matter this new treatment, which still indicates possible absolute stability as previously found. density behavior sound velocity is opposite...

We study the properties of strange quark matter in equilibrium with normal nuclear matter. Instead using conventional bag model sector, we achieve confinement by a density-dependent mass derived from in-medium chiral condensates. In matter, adopt equation state Brueckner-Bethe-Goldstone approach three-body forces. It is found that mixed phase can occur, for reasonable parameter, near saturation density and goes over to pure at about 5 times saturation. The onset phases compatible observed...

In this article, we study spontaneous chiral symmetry breaking for quark matter in the background of static and homogeneous parallel electric field $\mathbit{E}$ magnetic $\mathbit{B}$. We use a Nambu-Jona-Lasinio model with local kernel interaction to compute relevant quantities describe at finite temperature wide range $E$ $B$. effect on inverse catalysis $B$ same order magnitude. then focus equilibration density ${n}_{5}$, produced dynamically by an axial anomaly critical temperature. The...

Transverse momentum spectra of $\pi^+$, $K^+$, $p$, $K^0_s$, $\Lambda$, $\Xi$ or $\bar\Xi^+$ and $\Omega$ $\bar\Omega^+$ $\Omega+\bar\Omega$ in Copper-Copper (Cu-Cu), Gold-Gold (Au-Au) Lead-Lead (Pb-Pb) collisions at 200 GeV, 62.4 GeV 2.76 TeV respectively, are analyzed different centrality bins by the blast wave model with Tsallis statistics. The results approximately agreement experimental data measured BRAHMS, STAR ALICE Collaborations special transverse ranges. Kinetic freeze out...

We show that the yield ratio of free spectator neutrons produced in high-energy 96Zr+96Zr to 96Ru+96Ru collisions is a clean probe neutron-skin thickness colliding nuclei and slope parameter L symmetry energy. The idea demonstrated based on proton neutron density distributions via state-of-the-art Skyrme-Hartree-Fock-Bogolyubov calculation. Among nucleons given by Glauber model, include those from direct production survive clusterization as well deexcitation heavy clusters described popular...

Abstract For the observed line at 799.23 Å in tungsten EBIT experiment, which was assigned to be 3 F 4 o − ([ Ar ]4 s 2 p 5 d ) of W 38+ ion, there were noticeable deviations for most calculated wavelengths from measured value. To clarify this issue, we carry out an extensive calculation energy levels and transition properties ion using multi-configuration Dirac–Hartree–Fock relativistic configuration interaction method, more deeper inner core electron correlations are included, different...

The previous treatments for strange quark matter in the mass-density-dependent model have unreasonable vacuum limits. We provide a method to obtain mass parametrizations and give self-consistent thermodynamic treatment which includes MIT bag as an extreme. In this treatment, bulk still has possibility of absolute stability. However, behavior sound velocity is opposite findings.

Thermodynamic formulas for investigating systems with density- and/or temperature-dependent particle masses are generally derived from the fundamental derivation equality of thermodynamics. Various problems in previous treatments discussed and modified. Properties strange quark matter bulk strangelets at both zero finite temperature then calculated based on new thermodynamic a mass scaling, which indicates that low-mass near \ensuremath{\beta} equilibrium multiquark states an antistrange...

We develop our previous study of the transition to deconfined quark phase in neutron stars, including interaction equation state leading order perturbative expansion within confinement density-dependent mass model. Using Gibbs conditions hadron-quark mixed is constructed matching latter with hadron derived from microscopic Brueckner-Hartree-Fock approximation. The influence parameters on threshold properties and diagram dense star matter are discussed detail. find that leading-order expands...

The quasiparticle model is extended to investigate the properties of strange quark matter in a strong magnetic field at finite densities. For density-dependent mass, self-consistent thermodynamic treatment obtained with an additional effective bag parameter, which depends not only on density but also strength. makes more stable energetically when strength less than critical value order ${10}^{7}\text{ }\text{ }\mathrm{Gauss}$ depending QCD scale $\ensuremath{\Lambda}$. Instead being...

A quark model with running coupling and strange mass, which is thermodynamically self-consistent at both high lower densities, presented applied to study properties of matter structure compact stars. An additional term the thermodynamic potential density determined by meeting fundamental differential equation thermodynamics. It plays an important role in comparatively ignorable extremely density, acting as a chemical-potential dependent bag constant. In this enhanced perturbative QCD model,...

We present results about photon-production in relativistic heavy-ion collisions. The main novelty of our study is the calculation contribution early-stage photons to photon spectrum. initial stage modeled by an ensemble classical gluon fields which decay a quark-gluon plasma via Schwinger mechanism, and evolution system studied coupling field equations kinetic theory; production then computed including pertinent collision processes into integral. find that direct spectrum substantial for...

The transverse momentum spectra of light nuclei (deuteron, triton and helion) produced in various centrality intervals Gold-Gold (Au-Au), Lead-Lead (Pb-Pb) proton-Lead (p-Pb) collisions, as well inelastic (INEL) proton-proton (pp) collisions are analyzed by the blast wave model with Boltzmann Gibbs statistics. results nearly agreement experimental data measured STAR ALICE Collaborations special ranges. We extracted bulk properties terms kinetic freezeout temperature, flow velocity volume. It...

The neutron skin in deformed nuclei is generally not uniformly distributed but has an angular distribution, depending on both the spin-dependent nuclear interaction and symmetry energy. To extract information of skin, we have explored possibility using free spectator nucleons central tip-tip body-body collisions at top RHIC energy with four typical nuclei. density distributions neutrons protons are consistently obtained from Skyrme-Hartree-Fock-Bogolyubov calculation, distribution can be...

We calculate the properties of static strange stars using a quark model with chiral mass scaling. The results are characterized by large maximum (∼ 1.6 M⊙) and radius (∼10km). Together broad collection modern neutron star models, we discuss some recent astrophysical observational data that could shed new light on possible presence matter in compact stars. conclude none present observations can prove or confute existence

Using the characteristics of environment and disaster monitoring forecasting small satellite constellation (HJ), moderate resolution imaging spectroradiometer (MODIS) forest fire detection contextual algorithm was improved to adapt HJ-infrared sensor (HJ-IRS). The enhanced method consisted potential pixel identification, absolute relative judgment, background analysis, confidence. programmed in IDL7.1 tested using HJ data from Heilongjiang Province 2009. Results show that improving HJ-IRS is...

We study the influence of external parallel electric and magnetic fields a chiral chemical potential ${\ensuremath{\mu}}_{5}$ on phase transition quantum chromodynamics. Our theoretical framework is Nambu--Jona-Lasinio model with contact interaction. Within this we compute critical temperature symmetry restoration ${T}_{c}$ as function field strengths. find that inhibit enhances breaking, in agreement previous studies.

The interface effects of quark matter play important roles in the properties compact stars and small nuggets, such as strangelets nonstrange ($ud\mathrm{QM}$) nuggets. By introducing a density derivative term to Lagrangian adopting Thomas-Fermi approximation, we find it is possible reproduce results obtained by solving Dirac equations. Adopting certain parameter sets, energy per baryon $ud\mathrm{QM}$ nuggets decreases with number $A$ become more stable than nuclei at...

We propose a modification of the finite size effects due to effective bag function in extended quark quasiparticle model with running coupling constant. The is associated chemical potential and radius strangelets. Considering medium effects, surface tension should be redefined an additional term described by function. With increasing baryon number stable strangelets, it found that strength becomes stronger while decreases vicinity 35 MeV...

We study microscopic processes responsible for chirality flips in the thermal bath of Quantum Chromodynamics at finite temperature and zero baryon chemical potential. focus on range where crossover from chirally broken phase to quark-gluon plasma takes place, namely $T \simeq (150, 200)$ MeV. The we consider are quark-quark scatterings mediated by collective excitations with quantum number pions $\sigma$-meson, hence refer these simply as \sugg{to} one-pion (one-$\sigma$) exchange\sugg{s}....

It was recently derived that the QCD running coupling is a function of magnetic field strength under strong approximation. Inspired by this progress and based on self-consistent solutions gap equations, properties two-flavor three-flavor quark matter are studied in framework Nambu-Jona-Lasinio model with magnetic-field dependent coupling. We find dynamical masses as functions not monotonous fully chirally broken phase. Furthermore, stability magnetized enhanced lowering free energy per...