Top-quark mass determination from t-channel single top production at the LHC
Abstract We study the determination of the top-quark mass using leptonic observables in t-channel single top-quark production at the LHC. We demonstrate sensitivity of transverse momentum of the charged lepton on the input top-quark mass. We present predictions at next-to-next-to-leading order (NNLO...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2021-04-01
|
| Series: | Journal of High Energy Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1007/JHEP04(2021)054 |
| _version_ | 1818970615437066240 |
|---|---|
| author | Mei Sen Gao Shu Run Yuan Jun Gao |
| author_facet | Mei Sen Gao Shu Run Yuan Jun Gao |
| author_sort | Mei Sen Gao |
| collection | DOAJ |
| description | Abstract We study the determination of the top-quark mass using leptonic observables in t-channel single top-quark production at the LHC. We demonstrate sensitivity of transverse momentum of the charged lepton on the input top-quark mass. We present predictions at next-to-next-to-leading order (NNLO) in QCD with narrow width approximation and structure function approach. Further corrections due to parton shower and hadronization, non-resonant and non-factorized contributions are discussed. To reduce impact of SM backgrounds we propose to use the charge weighted distribution for the measurement, i.e., differences between distributions of charged lepton with positive and negative charges. By modeling both signal and background processes, we found the projections for (HL-)LHC to be promising, with a total theoretical uncertainty on the extracted top-quark mass of about 1 ∼ 2 GeV. |
| first_indexed | 2024-12-20T14:39:18Z |
| format | Article |
| id | doaj.art-c72c37a63c804cd1b95392fad6d4c826 |
| institution | Directory Open Access Journal |
| issn | 1029-8479 |
| language | English |
| last_indexed | 2024-12-20T14:39:18Z |
| publishDate | 2021-04-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Journal of High Energy Physics |
| spelling | doaj.art-c72c37a63c804cd1b95392fad6d4c8262022-12-21T19:37:23ZengSpringerOpenJournal of High Energy Physics1029-84792021-04-012021412910.1007/JHEP04(2021)054Top-quark mass determination from t-channel single top production at the LHCMei Sen Gao0Shu Run Yuan1Jun Gao2INPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao Tong UniversityINPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao Tong UniversityINPAC, Shanghai Key Laboratory for Particle Physics and Cosmology, School of Physics and Astronomy, Shanghai Jiao Tong UniversityAbstract We study the determination of the top-quark mass using leptonic observables in t-channel single top-quark production at the LHC. We demonstrate sensitivity of transverse momentum of the charged lepton on the input top-quark mass. We present predictions at next-to-next-to-leading order (NNLO) in QCD with narrow width approximation and structure function approach. Further corrections due to parton shower and hadronization, non-resonant and non-factorized contributions are discussed. To reduce impact of SM backgrounds we propose to use the charge weighted distribution for the measurement, i.e., differences between distributions of charged lepton with positive and negative charges. By modeling both signal and background processes, we found the projections for (HL-)LHC to be promising, with a total theoretical uncertainty on the extracted top-quark mass of about 1 ∼ 2 GeV.https://doi.org/10.1007/JHEP04(2021)054Heavy Quark PhysicsPerturbative QCDQuark Masses and SM Parameters |
| spellingShingle | Mei Sen Gao Shu Run Yuan Jun Gao Top-quark mass determination from t-channel single top production at the LHC Journal of High Energy Physics Heavy Quark Physics Perturbative QCD Quark Masses and SM Parameters |
| title | Top-quark mass determination from t-channel single top production at the LHC |
| title_full | Top-quark mass determination from t-channel single top production at the LHC |
| title_fullStr | Top-quark mass determination from t-channel single top production at the LHC |
| title_full_unstemmed | Top-quark mass determination from t-channel single top production at the LHC |
| title_short | Top-quark mass determination from t-channel single top production at the LHC |
| title_sort | top quark mass determination from t channel single top production at the lhc |
| topic | Heavy Quark Physics Perturbative QCD Quark Masses and SM Parameters |
| url | https://doi.org/10.1007/JHEP04(2021)054 |
| work_keys_str_mv | AT meisengao topquarkmassdeterminationfromtchannelsingletopproductionatthelhc AT shurunyuan topquarkmassdeterminationfromtchannelsingletopproductionatthelhc AT jungao topquarkmassdeterminationfromtchannelsingletopproductionatthelhc |