gamma-UPC
gamma-UPC is a library for calculating the photon fluxes in the exclusive photon-photon processes in ultraperipheral proton and nuclear collisions (UPCs). It is derived from electric dipole or charge form factors, and has incorporated hadronic survival probabilities. The library has been integrated into both
HELAC-Onia (version ≥ 2.7.6) and
MadGraph5_aMC@NLO (version ≥ 3.5.0 or downloaded below).
Compiler
Reference
-
"gamma-UPC: Automated generation of exclusive photon-photon processes in ultraperipheral proton and nuclear collisions with varying form factors"
H.-S. Shao and D. d'Enterria
JHEP 2209 (2022) 248 [arXiv:2207.03012[hep-ph]].
Downloads
Contact
If you have questions, comments, suggestions or bug reports, please email to
gamma-UPC_AT_cern.ch.
Additional exclusive photon-photon cross sections in SM at the LHC
| Colliding system |
W+W- |
ZZ |
tt̅ |
| pp 13 TeV |
(47.1, 66.7) fb |
(46.4, 69.6) ab |
(0.175±0.003, 0.255±0.004) fb |
| pp 13.6 TeV |
(50.2, 70.8) fb |
(50.2, 74.8) ab |
(0.189±0.003, 0.274±0.004) fb |
Note: the first and second numbers in parentheses are from EDFF and ChFF respectively. For tt̅, they are cross sections with NLO QCD corrections, and the quoted errors are from scale variations.
