Towards a complete next-to-logarithmic description of forward exclusive diffractive dijet electroproduction at HERA: Real corrections
Abstract
We studied the ep → ep + 2 jets diffractive cross section with ZEUS phase space. Neglecting the tchannel momentum in the Born and gluon dipole impact factors, we calculated the corresponding contributions to the cross section differential in β = Q2/Q2+M$$2\atop{2}$$$$_{jets}$$ and the angle Φ between the leptonic and hadronic planes. The gluon dipole contribution was obtained in the exclusive kt-algorithm with the exclusive cut ycut = 0.15 in the small ycut approximation. In the collinear approximation we canceled singularities between real and virtual contributions to the $$q$$$\bar{q}$$ dipole configuration, keeping the exact ycut dependency. We used the Golec-Biernat-Wüsthoff (GBW) parametrization for the dipole matrix element and linearized the double dipole contributions. The results give roughly $$\frac{1}{2}$$ of the observed cross section for small β and coincide with it for large β.
- Authors:
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- OSTI Identifier:
- 1570871
- Alternate Identifier(s):
- OSTI ID: 1573480
- Report Number(s):
- BNL-212309-2019-JAAM
Journal ID: ISSN 2470-0010; PRVDAQ; 074020
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Published Article
- Journal Name:
- Physical Review. D.
- Additional Journal Information:
- Journal Name: Physical Review. D. Journal Volume: 100 Journal Issue: 7; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Boussarie, R., Grabovsky, A. V., Szymanowski, L., and Wallon, S. Towards a complete next-to-logarithmic description of forward exclusive diffractive dijet electroproduction at HERA: Real corrections. United States: N. p., 2019.
Web. doi:10.1103/PhysRevD.100.074020.
Boussarie, R., Grabovsky, A. V., Szymanowski, L., & Wallon, S. Towards a complete next-to-logarithmic description of forward exclusive diffractive dijet electroproduction at HERA: Real corrections. United States. https://doi.org/10.1103/PhysRevD.100.074020
Boussarie, R., Grabovsky, A. V., Szymanowski, L., and Wallon, S. Fri .
"Towards a complete next-to-logarithmic description of forward exclusive diffractive dijet electroproduction at HERA: Real corrections". United States. https://doi.org/10.1103/PhysRevD.100.074020.
@article{osti_1570871,
title = {Towards a complete next-to-logarithmic description of forward exclusive diffractive dijet electroproduction at HERA: Real corrections},
author = {Boussarie, R. and Grabovsky, A. V. and Szymanowski, L. and Wallon, S.},
abstractNote = {We studied the ep → ep + 2 jets diffractive cross section with ZEUS phase space. Neglecting the tchannel momentum in the Born and gluon dipole impact factors, we calculated the corresponding contributions to the cross section differential in β = Q2/Q2+M$2\atop{2}$$_{jets}$ and the angle Φ between the leptonic and hadronic planes. The gluon dipole contribution was obtained in the exclusive kt-algorithm with the exclusive cut ycut = 0.15 in the small ycut approximation. In the collinear approximation we canceled singularities between real and virtual contributions to the $q$$\bar{q}$ dipole configuration, keeping the exact ycut dependency. We used the Golec-Biernat-Wüsthoff (GBW) parametrization for the dipole matrix element and linearized the double dipole contributions. The results give roughly $\frac{1}{2}$ of the observed cross section for small β and coincide with it for large β.},
doi = {10.1103/PhysRevD.100.074020},
journal = {Physical Review. D.},
number = 7,
volume = 100,
place = {United States},
year = {Fri Oct 18 00:00:00 EDT 2019},
month = {Fri Oct 18 00:00:00 EDT 2019}
}
https://doi.org/10.1103/PhysRevD.100.074020
Web of Science
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