Outputs (3)

Top tree amplitudes for higher order calculations (2023)
Journal Article
Campbell, J. M., & Ellis, R. K. (2023). Top tree amplitudes for higher order calculations. Journal of High Energy Physics, 2023(10), Article 125. https://doi.org/10.1007/jhep10%282023%29125

We present compact analytic results for tree-level amplitudes containing a tt¯ pair accompanied by up to four massless partons, tt¯gg, tt¯ggg, tt¯gggg, tt¯qq¯, tt¯qq¯g, tt¯qq¯gg and tt¯qq¯q′q¯′. The results, obtained using BCFW on-shell recursion, ar... Read More about Top tree amplitudes for higher order calculations.

Jet-veto resummation at N3LLp + NNLO in boson production processes (2023)
Journal Article
Campbell, J. M., Ellis, R. K., Neumann, T., & Seth, S. (2023). Jet-veto resummation at N3LLp + NNLO in boson production processes. Journal of High Energy Physics, 2023(4), Article 106. https://doi.org/10.1007/jhep04%282023%29106

Vetoing energetic jet activity is a crucial tool for suppressing backgrounds and enabling new physics searches at the LHC, but the introduction of a veto scale can introduce large logarithms that may need to be resummed. We present an implementation... Read More about Jet-veto resummation at N3LLp + NNLO in boson production processes.

Transverse momentum resummation at N3LL+NNLO for diboson processes (2023)
Journal Article
Campbell, J. M., Ellis, R. K., Neumann, T., & Seth, S. (2023). Transverse momentum resummation at N3LL+NNLO for diboson processes. Journal of High Energy Physics, 2023(3), Article 80. https://doi.org/10.1007/jhep03%282023%29080

Diboson processes are one of the most accessible and stringent probes of the electroweak gauge structure of the Standard Model at the LHC. They will be probed at the percent level at the high-luminosity LHC, challenging current theory predictions. We... Read More about Transverse momentum resummation at N3LL+NNLO for diboson processes.