Hyperon semileptonic decays in QCD sum rules
Sign Up to like & getrecommendations! Published in 2024 at "Journal of High Energy Physics"
DOI: 10.1007/jhep06(2024)122
Abstract: We investigate the hyperon semileptonic decays within the framework of QCD sum rules. The flavor SU(3) symmetry breaking effects are analyzed via the relevant form factors and corresponding branching fractions. Employing the z-series parameterization to… read more here.
Keywords: sum rules; semileptonic decays; hyperon semileptonic; qcd sum ... See more keywords
SCET sum rules for Λb→ Λℓ+ℓ−, Λγ decays
Sign Up to like & getrecommendations! Published in 2025 at "Journal of High Energy Physics"
DOI: 10.1007/jhep09(2025)172
Abstract: We construct light-cone sum rules for various types of effective form factors in the Λb → Λℓ+ℓ− and Λb → Λγ decays by analyzing vacuum-to-Λb (or γ*-to-Λb) correlation functions with the light Λ-baryon interpolating current.… read more here.
Keywords: sum; fraction; sum rules; form factors ... See more keywords
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 X-ray circular and linear dichroism based on complete magnetic multipole basis
Sign Up to like & getrecommendations! Published in 2025 at "Science and Technology of Advanced Materials"
DOI: 10.1080/14686996.2025.2513217
Abstract: ABSTRACT X-ray magnetic circular dichroism (XMCD) and X-ray magnetic linear dichroism (XMLD) are powerful spectroscopic techniques for probing magnetic properties in solids. In this study, we revisit the XMCD and XMLD sum rules within a… read more here.
Keywords: magnetic multipole; multipole basis; complete magnetic; sum rules ... See more keywords
0– – hidden-heavy tetraquark states via QCD sum rules
Sign Up to like & getrecommendations! Published in 2024 at "Chinese Physics C"
DOI: 10.1088/1674-1137/ad53b7
Abstract: In this study, we evaluated the mass spectra of the prospective hidden-charm and hidden-bottom tetraquark states in molecular configuration via QCD sum rules. In our calculation, the nonperturbative condensate contributions are considered up to dimension… read more here.
Keywords: tetraquark states; sum rules; tetraquark; via qcd ... 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
Mass spectrum of the hidden-charm hybrid states via QCD sum rules
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review D"
DOI: 10.1103/hv4x-dnmt
Abstract: In this work, we study the mass spectrum of the hidden-charm hybrid states with the $J^{PC}=0^{-+}$, $0^{++}$, $0^{--}$, $1^{++}$, $1^{+-}$, $1^{-+}$, $1^{--}$, $2^{-+}$ and $2^{++}$ via the QCD sum rules in a consistent way. We… read more here.
Keywords: sum rules; hidden charm; charm hybrid; hybrid states ... 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