Form invariance of the moment sum-rules for jellium with the addition of short-range terms in the pair-potential
Sign Up to like & getrecommendations! Published in 2019 at "Indian Journal of Physics"
DOI: 10.1007/s12648-020-01750-2
Abstract: We find the first three (even) structure factor moments for a (non-quantum) one-component Jellium made of particles living in three dimensions and interacting with a Coulomb pair-potential plus a short-range term with either a finite… read more here.
Keywords: pair potential; moment sum; addition short; range ... See more keywords
Sum rules and asymptotic behaviors of neutrino mixing in dense matter
Sign Up to like & getrecommendations! Published in 2019 at "Nuclear Physics B"
DOI: 10.1016/j.nuclphysb.2019.114803
Abstract: It has proved convenient to define the effective lepton flavor mixing matrix $\widetilde{U}$ and neutrino mass-squared differences $\widetilde{\Delta}^{}_{ji} \equiv \widetilde{m}^2_j - \widetilde{m}^2_i$ (for $i,j =1,2,3$) to describe the phenomena of neutrino mixing and flavor oscillations… read more here.
Keywords: widetilde delta; matter; asymptotic behaviors; widetilde ... See more keywords
Sum rules for the supersymmetric eight-vertex model
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Statistical Mechanics: Theory and Experiment"
DOI: 10.1088/1742-5468/abda28
Abstract: The eight-vertex model on the square lattice with vertex weights a, b, c, d obeying the relation (a 2 + ab)(b 2 + ab) = (c 2 + ab)(d 2 + ab) is considered. Its… read more here.
Keywords: vertex model; sum rules; supersymmetric eight; eight vertex ... See more keywords
Transition sum rules in the shell model
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DOI: 10.1103/physrevc.97.034330
Abstract: An important characterization of electromagnetic and weak transitions in atomic nuclei are sum rules. We focus on the non-energy-weighted sum rule (NEWSR), or total strength, and the energy-weighted sum rule (EWSR); the ratio of the… read more here.
Keywords: sum; sum rule; transition; energy ... See more keywords
Neutron matter within QCD sum rules
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review C"
DOI: 10.1103/physrevc.97.054322
Abstract: Equation of state (EOS) of pure neutron matter (PNM) is studied in QCD sum rules (QCDSR). It is found that the QCDSR results on EOS of PNM are in good agreement with predictions by current… read more here.
Keywords: sum rules; density; neutron matter; qcd sum ... See more keywords
B→T transition form factors in light-cone sum rules
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review D"
DOI: 10.1103/physrevd.100.094005
Abstract: We present a new calculation of the semileptonic tree-level and flavor-changing neutral current form factors describing $B$-meson transitions to tensor mesons $T=D_2^*,K_2^*,a_2,f_2$ ($J^{P}=2^{+}$). We employ the QCD Light-Cone Sum Rules approach with $B$-meson distribution amplitudes.… read more here.
Keywords: cone sum; light cone; form factors; sum rules ... See more keywords
Semileptonic Ξc baryon decays in the light cone QCD sum rules
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review D"
DOI: 10.1103/physrevd.104.054030
Abstract: Form factors of the weak Ξc → Ξ(Λ) transitions are calculated within the light cone QCD sum rules. The pollutions coming from the contribution of the negative parity Ξc baryon is eliminated by considering the… read more here.
Keywords: cone qcd; light cone; sum; qcd sum ... See more keywords
Finite-energy sum rules in eta photoproduction off a nucleon
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.034014
Abstract: The reaction gamma N -> eta N is studied in the high-energy regime (with photon lab energies E gamma(lab) > 4 GeV) using information from the resonance region through the use of finite-energy sum rules.… read more here.
Keywords: finite energy; rules eta; energy; sum rules ... See more keywords
Spin-dependent sum rules connecting real and virtual Compton scattering verified
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review D"
DOI: 10.1103/physrevd.95.074001
Abstract: We present a detailed derivation of the two sum rules relating the spin polarizabilities measured in real, virtual, and doubly-virtual Compton scattering. For example, the polarizability $\delta_{LT}$, accessed in inclusive electron scattering, is related to… read more here.
Keywords: virtual compton; real virtual; sum rules; spin ... See more keywords
Light-by-light forward scattering sum rules for charmonium states
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DOI: 10.1103/physrevd.96.056003
Abstract: We apply three forward light-by-light scattering sum rules to charmonium states. We show that these sum rules imply a cancellation between charmonium bound state contributions, which are mostly known from the $\gamma \gamma$ decay widths… read more here.
Keywords: sum; sum rules; scattering sum; light light ... See more keywords
Meson-hybrid mixing in JPC=1++ heavy quarkonium from QCD sum rules
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review D"
DOI: 10.1103/physrevd.98.074014
Abstract: We explore conventional meson-hybrid mixing in $J^{PC}=1^{++}$ heavy quarkonium using QCD Laplace sum-rules. We calculate the cross-correlator between a heavy conventional meson current and heavy hybrid current within the operator product expansion, including terms proportional… read more here.
Keywords: heavy quarkonium; sum rules; meson hybrid; hybrid mixing ... See more keywords