Rohrwild, J. (2007) Light-cone sum rules for the N gamma Delta transitions for real photons. PHYSICAL REVIEW D, 75 (7): 074025. ISSN 1550-7998,
Full text not available from this repository.Abstract
We examine the radiative Delta ->gamma N 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.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | PION WAVE-FUNCTION; QUANTUM CHROMODYNAMICS; DISTRIBUTION AMPLITUDES; EXCLUSIVE KINEMATICS; MAGNETIC-MOMENTS; FORM-FACTORS; QUARK-MODEL; E2/M1 RATIO; QCD; NUCLEON; |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Theroretical Physics |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 21 Dec 2020 08:21 |
| Last Modified: | 21 Dec 2020 08:21 |
| URI: | https://pred.uni-regensburg.de/id/eprint/33003 |
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