Radiative decays of decuplet to octet baryons in light cone QCD

Aliev, T.; Özpineci, A.

doi:10.1016/j.nuclphysb.2005.07.038

Cited by 41 publications

(66 citation statements)

References 30 publications

(32 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The numerical impact of these contributions apparently is small and the final results for G M (0) = 2.5 ± 1.3 and R EM (0) = −6.8% from Ref. [33] are close to ours. This consistency lends support to the general technique of LCSRs using photon DAs.…”

Section: Sum Rules and Numerical Resultssupporting

confidence: 87%

“…It is therefore not unexpected that two different sum rules for the same quantity agree only within a factor of two and do not contradict the validity of our approach. In [33] the form factors of the nucleon-∆ transition have been calculated as part of a very general examination of radiative decays of decuplet baryons into octet baryons. This calculation has been carried out in LCSR and is, in principle, very similar to our calculation.…”

Section: Sum Rules and Numerical Resultsmentioning

confidence: 99%

“…These have to be taken into account as most photon DAs are only known to next-to-leading order in conformal spin, which requires all photon DAs to be of this accuracy. In [33] such terms were neglected. The numerical impact of these contributions apparently is small and the final results for G M (0) = 2.5 ± 1.3 and R EM (0) = −6.8% from Ref.…”

Section: Sum Rules and Numerical Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Light-cone sum rules for theNγΔtransitions for real photons

Rohrwild

2007

Phys. Rev. D

View full text Add to dashboard Cite

Abstract:We examine the radiative ∆ → γN transition at the real photon point Q 2 = 0 using the framework of light-cone QCD sum rules. In particular, the sum rules for the transition form factors G M (0) and R EM are determined up to twist 4. The result for G M (0) agrees with experiment within 10% accuracy. The agreement for R EM is also reasonable. In addition, we derive new light-cone sum rules for the magnetic moments of nucleons, with a complete account of twist-4 corrections based on a recent reanalysis of photon distribution amplitudes.

show abstract

Section: Sum Rules and Numerical Resultssupporting

confidence: 87%

Section: Sum Rules and Numerical Resultsmentioning

confidence: 99%

Section: Sum Rules and Numerical Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Light-cone sum rules for theNγΔtransitions for real photons

Rohrwild

2007

Phys. Rev. D

View full text Add to dashboard Cite

show abstract

“…The octet to decuplet electromagnetic transitions are studied within different theoretical approaches, such as the quark model [4][5][6][7], QCD sum rules [8,9], and lattice QCD [10]. In many theoretical works, the octet to decuplet electromagnetic transitions have been studied at Q 2 = 0, but only in a few works have the form factors of these transitions been studied.…”

Section: Introductionmentioning

confidence: 99%

“…Note that these form factors are calculated within the same approach at Q 2 = 0 in [9]. The plan of the work is as follows.…”

Section: Introductionmentioning

confidence: 99%

Electromagnetic transitions among octet and decuplet baryons in QCD

2013

View full text Add to dashboard Cite

The magnetic dipole G M (Q 2 ), electric quadrupole G E (Q 2 ), and Coulomb quadrupole G C (Q 2 ) form factors, describing the spin-3/2 to spin-1/2 electromagnetic transitions, are investigated within the light cone QCD sum rules. The Q 2 dependence of these form factors, as well as ratios of electric quadrupole and Coulomb quadrupole form factors to the magnetic dipole form factors are studied. We also compare our results on the magnetic dipole form factor with the prediction of the covariant spectator quark model.

show abstract

Gravitational transition form factors of N → ∆ via QCD light-cone sum rules

Özdem

Azizi

2023

J. High Energ. Phys.

View full text Add to dashboard Cite

We present the first direct calculation on the gravitational form factors (GFFs) of the N → ∆ transition using an analytic method, the QCD light-cone sum rules. The matrix element of the quark part of the energy momentum tensor current sandwiched between the nucleon and ∆ states are parameterized in terms of five independent conserved and four independent non-conserved GFFs, for calculation of which we use the distribution amplitudes (DAs) of the on-shell nucleon expanded in terms of functions with different twists. We present the results for two sets of light-cone input parameters. The results indicate that the behavior of the form factors with respect to Q2 are described by multipole fit functions. Our results may be checked by other phenomenological models including the Lattice QCD as well as future related experiments.

show abstract

Radiative decays of decuplet to octet baryons in light cone QCD

Cited by 41 publications

References 30 publications

Light-cone sum rules for theNγΔtransitions for real photons

Light-cone sum rules for theNγΔtransitions for real photons

Electromagnetic transitions among octet and decuplet baryons in QCD

Gravitational transition form factors of N → ∆ via QCD light-cone sum rules

Contact Info

Product

Resources

About