Threshold enhanced cross sections for colorless productions
| Autor: | Goutam Das, Chinmoy Dey, M. C. Kumar, Kajal Samanta |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Physical Review Physical review / D 107(3), 034038 (2023). doi:10.1103/PhysRevD.107.034038 |
| DOI: | 10.1103/PhysRevD.107.034038 |
| Popis: | We study the threshold effect for neutral and charged Drell-Yan productions, associated production of Higgs boson with a massive vector boson and Higgs production in bottom quark annihilation at LHC to the third order in QCD. Using the third order soft-virtual results for these processes and exploiting the universality of the threshold logarithms, we extract the process-dependent coefficients for these processes and resum large threshold logarithms to next-to-next-to-next-to leading logarithmic (N$^3$LL) accuracy. By matching our results to the recently available N$^3$LO results, we provide the most precise theoretical predictions for these processes. We present numerical results for invariant mass distribution and total production cross-sections. We find the conventional scale uncertainties of about $0.4\%$ at N$^3$LO level in the fixed order results get reduced to as small as less than $0.1\%$ at N$^3$LO+N$^3$LL level in the high invariant mass region. 26 pages, 20 figures and 6 tables |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|