Soft Contribution to Form Factors of Gamma* p -> Delta+ Transition
Journal Article
·
· Physical Review D
OSTI ID:954415
The purely nonperturbative soft contribution to the gamma* p -> delta+ transition form factors is estimated using the local quark-hadron duality approach. Our results show that the soft contribution is dominated by the magnetic transition: the ratio G* E Q2/ G*M Q2 is small for all accessible Q2, in contrast to pQCD expectations that G*E (Q2) -> -G*M (Q2). We also found that the soft contribution to the magnetic form factor is large enough to explain the magnitude of existing experimental data.
- Research Organization:
- Thomas Jefferson Lab National Accelerator Facility
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-84ER40150
- OSTI ID:
- 954415
- Report Number(s):
- CEBAF-TH-95-15; hep-ph/9509267
- Journal Information:
- Physical Review D, Journal Name: Physical Review D Vol. 53
- Country of Publication:
- United States
- Language:
- English
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