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Threshold resummation for the production of four top quarks at the LHC
We compute the total cross section for $t\bar{t}t\bar{t}$ production at next-to-leading logarithmic (NLL$^{\prime}$) accuracy. This is the first time resummation is performed for a hadron-collider process with four colored particles in the final state. The calculation is matched to the next-to-leadi...
| Autores principales: | , , |
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| Lenguaje: | eng |
| Publicado: |
2022
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| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/2843453 |
| _version_ | 1780976300865880064 |
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| author | van Beekveld, Melissa Kulesza, Anna Valero, Laura Moreno |
| author_facet | van Beekveld, Melissa Kulesza, Anna Valero, Laura Moreno |
| author_sort | van Beekveld, Melissa |
| collection | CERN |
| description | We compute the total cross section for $t\bar{t}t\bar{t}$ production at next-to-leading logarithmic (NLL$^{\prime}$) accuracy. This is the first time resummation is performed for a hadron-collider process with four colored particles in the final state. The calculation is matched to the next-to-leading order strong and electroweak corrections. The NLL$^{\prime}$ corrections enhance the total production rate by 15%. The size of the theoretical error due to scale variation is reduced by more than a factor of two, bringing the theoretical error significantly below the current experimental uncertainty of the measurement. |
| id | cern-2843453 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2022 |
| record_format | invenio |
| spelling | cern-28434532023-01-31T10:31:35Zhttp://cds.cern.ch/record/2843453engvan Beekveld, MelissaKulesza, AnnaValero, Laura MorenoThreshold resummation for the production of four top quarks at the LHChep-phParticle Physics - PhenomenologyWe compute the total cross section for $t\bar{t}t\bar{t}$ production at next-to-leading logarithmic (NLL$^{\prime}$) accuracy. This is the first time resummation is performed for a hadron-collider process with four colored particles in the final state. The calculation is matched to the next-to-leading order strong and electroweak corrections. The NLL$^{\prime}$ corrections enhance the total production rate by 15%. The size of the theoretical error due to scale variation is reduced by more than a factor of two, bringing the theoretical error significantly below the current experimental uncertainty of the measurement.arXiv:2212.03259OUTP-22-11PMS-TP-22-51CERN-TH-2022-142oai:cds.cern.ch:28434532022-12-06 |
| spellingShingle | hep-ph Particle Physics - Phenomenology van Beekveld, Melissa Kulesza, Anna Valero, Laura Moreno Threshold resummation for the production of four top quarks at the LHC |
| title | Threshold resummation for the production of four top quarks at the LHC |
| title_full | Threshold resummation for the production of four top quarks at the LHC |
| title_fullStr | Threshold resummation for the production of four top quarks at the LHC |
| title_full_unstemmed | Threshold resummation for the production of four top quarks at the LHC |
| title_short | Threshold resummation for the production of four top quarks at the LHC |
| title_sort | threshold resummation for the production of four top quarks at the lhc |
| topic | hep-ph Particle Physics - Phenomenology |
| url | http://cds.cern.ch/record/2843453 |
| work_keys_str_mv | AT vanbeekveldmelissa thresholdresummationfortheproductionoffourtopquarksatthelhc AT kuleszaanna thresholdresummationfortheproductionoffourtopquarksatthelhc AT valerolauramoreno thresholdresummationfortheproductionoffourtopquarksatthelhc |