Scaling Tests of the Cross Section for Deeply Virtual Compton Scattering
| Title: | Scaling Tests of the Cross Section for Deeply Virtual Compton Scattering |
|---|---|
| Authors: | Camacho, C. Muñoz; Holmstrom, Timothy; Jefferson Lab Hall A Collaboration |
| Source: | Chemistry & Physics Faculty Publications |
| Publisher Information: | Digital Commons @ Longwood University |
| Publication Year: | 2006 |
| Collection: | Longwood University: Digital Commons @ Longwood |
| Subject Terms: | Physics |
| Description: | We present the first measurements of the e⃗p→epγ cross section in the deeply virtual Compton scattering (DVCS) regime and the valence quark region. The Q2 dependence (from 1.5 to 2.3 GeV2) of the helicity-dependent cross section indicates the twist-2 dominance of DVCS, proving that generalized parton distributions (GPDs) are accessible to experiment at moderate Q2. The helicity-independent cross section is also measured at Q2=2.3 GeV2. We present the first model-independent measurement of linear combinations of GPDs and GPD integrals up to the twist-3 approximation. |
| Document Type: | text |
| File Description: | application/pdf |
| Language: | unknown |
| Relation: | https://digitalcommons.longwood.edu/chemphys_facpubs/11; https://digitalcommons.longwood.edu/context/chemphys_facpubs/article/1014/viewcontent/Holmstrom_2.29.pdf |
| DOI: | 10.1103/PhysRevLett.97.262002 |
| Availability: | https://digitalcommons.longwood.edu/chemphys_facpubs/11; https://doi.org/10.1103/PhysRevLett.97.262002; https://digitalcommons.longwood.edu/context/chemphys_facpubs/article/1014/viewcontent/Holmstrom_2.29.pdf |
| Accession Number: | edsbas.261E2DBE |
| Database: | BASE |