Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD
Abstract We report on the first fully differential calculation of the next-to-next-to-leading-order (NNLO) QCD radiative corrections to the production of bottom-quark pairs at hadron colliders. The calculation is performed by using the q T subtraction formalism to handle and cancel infrared singular...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-03-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP03(2021)029 |
| _version_ | 1818622899997638656 |
|---|---|
| author | Stefano Catani Simone Devoto Massimiliano Grazzini Stefan Kallweit Javier Mazzitelli |
| author_facet | Stefano Catani Simone Devoto Massimiliano Grazzini Stefan Kallweit Javier Mazzitelli |
| author_sort | Stefano Catani |
| collection | DOAJ |
| description | Abstract We report on the first fully differential calculation of the next-to-next-to-leading-order (NNLO) QCD radiative corrections to the production of bottom-quark pairs at hadron colliders. The calculation is performed by using the q T subtraction formalism to handle and cancel infrared singularities in real and virtual contributions. The computation is implemented in the Matrix framework, thereby allowing us to efficiently compute arbitrary infrared-safe observables in the four-flavour scheme. We present selected predictions for bottom-quark production at the Tevatron and at the LHC at different collider energies, and we perform some comparisons with available experimental results. We find that the NNLO corrections are sizeable, typically of the order of 25–35%, and they lead to a significant reduction of the perturbative uncertainties. Therefore, their inclusion is crucial for an accurate theoretical description of this process. |
| first_indexed | 2024-12-16T18:32:30Z |
| format | Article |
| id | doaj.art-c197cd5cf8ca4fbbacc0e2bce3007da6 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-16T18:32:30Z |
| publishDate | 2021-03-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-c197cd5cf8ca4fbbacc0e2bce3007da62022-12-21T22:21:16ZengSpringerOpenJournal of High Energy Physics1029-84792021-03-012021313110.1007/JHEP03(2021)029Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCDStefano Catani0Simone Devoto1Massimiliano Grazzini2Stefan Kallweit3Javier Mazzitelli4INFN, Sezione di Firenze and Dipartimento di Fisica e Astronomia, Università di FirenzePhysik Institut, Universität ZürichPhysik Institut, Universität ZürichDipartimento di Fisica, Università degli Studi di Milano-Bicocca and INFN, Sezione di Milano-BicoccaMax-Planck-Institut für PhysikAbstract We report on the first fully differential calculation of the next-to-next-to-leading-order (NNLO) QCD radiative corrections to the production of bottom-quark pairs at hadron colliders. The calculation is performed by using the q T subtraction formalism to handle and cancel infrared singularities in real and virtual contributions. The computation is implemented in the Matrix framework, thereby allowing us to efficiently compute arbitrary infrared-safe observables in the four-flavour scheme. We present selected predictions for bottom-quark production at the Tevatron and at the LHC at different collider energies, and we perform some comparisons with available experimental results. We find that the NNLO corrections are sizeable, typically of the order of 25–35%, and they lead to a significant reduction of the perturbative uncertainties. Therefore, their inclusion is crucial for an accurate theoretical description of this process.https://doi.org/10.1007/JHEP03(2021)029QCD Phenomenology |
| spellingShingle | Stefano Catani Simone Devoto Massimiliano Grazzini Stefan Kallweit Javier Mazzitelli Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD Journal of High Energy Physics QCD Phenomenology |
| title | Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD |
| title_full | Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD |
| title_fullStr | Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD |
| title_full_unstemmed | Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD |
| title_short | Bottom-quark production at hadron colliders: fully differential predictions in NNLO QCD |
| title_sort | bottom quark production at hadron colliders fully differential predictions in nnlo qcd |
| topic | QCD Phenomenology |
| url | https://doi.org/10.1007/JHEP03(2021)029 |
| work_keys_str_mv | AT stefanocatani bottomquarkproductionathadroncollidersfullydifferentialpredictionsinnnloqcd AT simonedevoto bottomquarkproductionathadroncollidersfullydifferentialpredictionsinnnloqcd AT massimilianograzzini bottomquarkproductionathadroncollidersfullydifferentialpredictionsinnnloqcd AT stefankallweit bottomquarkproductionathadroncollidersfullydifferentialpredictionsinnnloqcd AT javiermazzitelli bottomquarkproductionathadroncollidersfullydifferentialpredictionsinnnloqcd |