| Autor: |
Amat, Orkash, Czakon, Michał, Dulat, Sayipjamal, Hou, Tie-Jiun, Huston, Joey, Mitov, Alexander, Papanastasiou, Andrew S., Schmidt, Carl, Sitiwaldi, Ibrahim, Xie, Keping, Yu, Zhite, Yuan, C. -P. |
| Rok vydání: |
2019 |
| Předmět: |
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| Druh dokumentu: |
Working Paper |
| Popis: |
Detailed studies have been carried out on the impact of the LHC top quark pair production data on gluon PDF, in the context of the CTEQ-TEA global PDF fit, with the ePump-updating method. The considered $t\bar{t}$ data include single differential distributions from ATLAS and double differential distributions from CMS, both at 8 TeV. All analyses have been carried out at the NNLO, using fastNNLO tables. We show that the sensitivity per data point of the LHC $t\bar{t}$ data is similar to that of jet data, as included in the CT14HERA2 fit, while the total sensitivity of the present $t\bar{t}$ data is not as large as the jet data because of the much smaller number of $t\bar{t}$ data points in the presently available data. |
| Databáze: |
arXiv |
| Externí odkaz: |
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