The protein phosphatase (PP2C) gene family, known to participate in cellular processes, is one of the momentous and conserved plant-specific families that regulate signal transduction eukaryotic organisms. Recently, PP2Cs were identified Arabidopsis various other crop species, but analysis PP2C cotton yet be reported. In current research, we found 87 (Gossypiumarboreum), 147 (Gossypiumbarbadense), 181 (Gossypiumhirsutum), 99 (Gossypiumraimondii) PP2C-encoding genes total from genome. Herein,...

Introduction Biofuel is a kind of sustainable, renewable and environment friendly energy. Lignocellulose from the stems woody plants main raw material for “second generation biofuels”. Lignin content limits fermentation yield therefore major obstacle in biofuel production. Plant laccase plays an important role final step lignin formation, which provides new strategy us to obtain ideal biofuels by regulating expression genes directly gain desired or change composition lignin. Methods Multiple...

Within the relativistic Brueckner-Hartree-Fock theory in full Dirac space, tensor-force effects on infinite nuclear matter are elucidated by subtracting matrix elements of tensor forces from realistic nucleon-nucleon interaction. The for binding energy per particle symmetric (SNM) as well symmetry attractive and more pronounced around empirical saturation density, while have little impact pure neutron matter. By tuning strength, an (negative) scattering length spin-triplet channel is found....

Abstract The momentum and isospin dependence of the single-particle potential for in-medium nucleon are key quantities in Relativistic Brueckner–Hartree–Fock (RBHF) theory. It depends on how to extract scalar vector components inside nuclear matter. In contrast RBHF calculations Dirac space with positive-energy states (PESs) only, can be determined a unique way by theory together negative-energy states, i.e., full space. saturation properties symmetric asymmetric matter systematically...

A series of relativistic one-boson-exchange potentials for a two-nucleon system, denoted as $\mathrm{OBEP}\mathrm{\ensuremath{\Lambda}}$, is constructed with momentum cutoff $\mathrm{\ensuremath{\Lambda}}$ ranging from $\ensuremath{\infty}$ to 2 ${\mathrm{fm}}^{\ensuremath{-}1}$. These are developed by simultaneous fitting nucleon-nucleon ($NN$) scattering phase shifts, low-energy length, effective range, and the binding energy deuteron. The momentum-space matrix elements low-momentum...

Microscopic optical potentials based on realistic nucleon-nucleon interactions are important for describing the scattering phenomenology involving nuclei far away from valley of nuclear stability. The authors construct a new potential by combining relativistic Brueckner-Hartree-Fock theory with microscopic description density profile target nucleus. model provides good reproduction proton data five nuclei, opening up interesting perspectives applications to exotic including setting reliable...

The long-standing controversy about the isospin dependence of effective Dirac mass in ab initio calculations asymmetric nuclear matter is clarified by solving relativistic Brueckner-Hartree-Fock equations full space. symmetry energy and its slope parameter at saturation density are ${E}_{\text{sym}}({\ensuremath{\rho}}_{0})=33.1$ MeV $L=65.2$ MeV, agreement with empirical experimental values. Further applications predict neutron star radius...

Nucleon effective masses in neutron-rich matter are studied with the relativistic Brueckner-Hartree-Fock (RBHF) theory full Dirac space. The neutron and proton for symmetric nuclear 0.80 times rest mass, which agrees well empirical values. In matter, mass of is found to be larger than that proton, neutron-proton splittings at saturation density predicted as $0.187\ensuremath{\alpha}$ $\ensuremath{\alpha}$ being isospin asymmetry parameter. result compared other ab initio calculations...

Starting from the relativistic realistic nucleon-nucleon ($NN$) interactions, Brueckner-Hartree-Fock (RBHF) theory in full Dirac space is employed to study neutron star properties. First, one-to-one correspondence relation for gravitational redshift and mass established used infer masses of isolated stars by combining measurements. Next, ratio moment inertia $I$ times radius squared $M{R}^{2}$ as a function compactness $M/R$ obtained, consistent with universal relations literature. The...

Abstract Properties of neutron stars are investigated by an available relativistic ab initio method, the Brueckner–Hartree–Fock (RBHF) model, with latest high-precision, charge-dependent potentials, pvCD-Bonn A, B, C. The star matter is solved within beta equilibrium and charge neutrality conditions in framework RBHF model. Compared to conventional treatment, where chemical potential leptons was approximately represented symmetry energy nuclear matter, equation state present self-consistent...

The relativistic Brueckner-Hartree-Fock equations are solved self-consistently for symmetric nuclear matter in the full Dirac space within continuous choice single-particle potential. Inspired from nucleon-nucleon scattering free space, energy denominator of equation medium is rewritten and a complex Thompson effective interaction $G$ matrix derived. By decomposing elements potential operator both real imaginary parts determined uniquely. mass behave continuously through Fermi surface as...

Relativistic Brueckner-Hartree-Fock (RBHF) theory in the full Dirac space allows one to determine uniquely momentum dependence of scalar and vector components single-particle potentials. In order extend this new method from nuclear matter finite nuclei, as a first step, properties $^{208}$Pb are explored by using microscopic equation state for asymmetric liquid droplet model. The neutron proton density distributions, binding energies, radii, skin thickness calculated. further compare charge...

Starting from the relativistic Brueckner-Hartree-Fock theory for nuclear matter and Dyson-Schwinger equation approach quark matter, possible hadron-quark phase transition in interior of a neutron star is explored. The first-order crossover are studied by performing Maxwell construction three-window respectively. mass-radius relation tidal deformability hybrid calculated compared to joint observation constraints gravitational wave detection. For construction, no stable core found star....

To apply the high-precision realistic nucleon-nucleon (N N ) potentials on investigations of relativistic many-body methods, new versions charge-dependent Bonn (CD-Bonn) potential are constructed within pseudovector pion-nucleon coupling instead pseudoscalar type in original CD-Bonn worked out by Machleidt [Phys.Rev. C 63, 024001 (2001)].Two effective scalar mesons introduced, whose constants with nucleon independently determined at each partial wave for total angular momentum J ≤ 4, to...

The microscopic mechanisms of the symmetry energy in nuclear matter are investigated framework relativistic Brueckner-Hartree-Fock (RBHF) model with a high-precision realistic potential, pvCDBonn A. kinetic and potential contributions to decomposed. They explicitly expressed by nucleon self-energies, which obtained through projecting $G$-matrices from RBHF into terms Lorentz covariants. medium effects on self-energy nucleon-nucleon interaction discussed comparing results those Hartree-Fock...

Abstract Recent years have seen considerable progress with ab-initio calculations of the nuclear structure by non-relativistic many-body methods. Dirac-Brueckner-Hartree-Fock Theory provides a relativistic ab-intio approach, which is able to reproduce saturation properties symmetric matter without three-body forces. However, so far, corresponding equations been solved only for positive energy states. Negative states included forty in various approximations, leading differences isospin...

The isospin splitting of the Dirac mass obtained with relativistic Brueckner-Hartree-Fock (RBHF) theory is thoroughly investigated. From perspective in full space, long-standing controversy between momentum-independence approximation (MIA) method and projection on asymmetric nuclear matter (ANM) analyzed detail. We find that, \textit{assumption procedure} MIA method, which assumes that single-particle potentials are momentum independent, not a sufficient condition directly leads to wrong...

A relativistic microscopic optical model potential for nucleon-nucleus scattering is developed based on the \emph{ab initio} Brueckner-Hartree-Fock (RBHF) theory with improved local density approximation, which abbreviated as RBOM potential. Both real and imaginary parts of single-particle potentials in symmetric asymmetric nuclear matter at various densities are determined uniquely full Dirac space. The distributions target nuclei calculated by covariant energy functional PC-PK1. central...

Properties of nuclear matter are investigated in the framework relativistic Brueckner-Hartree-Fock model with latest high-precision charge-dependent Bonn (pvCD-Bonn) potentials, where coupling between pion and nucleon is adopted as pseudovector form. These realistic pvCD-Bonn potentials renormalized to effective nucleon-nucleon ($NN$) interactions, $G$ matrices. They obtained by solving Blankenbecler-Sugar (BbS) equation medium. Then, saturation properties symmetric calculated A, B, C...

Starting from the relativistic Brueckner-Hartree-Fock theory for nuclear matter and Dyson-Schwinger equation approach quark matter, possible hadron-quark phase transition in interior of a neutron star is explored. The first-order crossover are studied by performing Maxwell construction three-window respectively. mass-radius relation tidal deformability hybrid calculated compared to joint observation constraints gravitational wave detection. For construction, no stable core found star....

Nucleon effective masses in neutron-rich matter are studied with the relativistic Brueckner-Hartree-Fock (RBHF) theory full Dirac space. The neutron and proton for symmetric nuclear 0.80 times rest mass, which agrees well empirical values. In matter, mass of is found larger than that proton, neutron-proton splittings at saturation density predicted as $0.187α$ $α$ being isospin asymmetry parameter. result compared to other ab initio calculations consistent constraints from reaction structure...