Observation of top quark production in proton-nucleus collisions
The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of sNN=8.16 TeV. The measurement is performed using events with exactly one isolated electron or mu...
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| Format: | Article |
| Language: | English English |
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American Physical Society
2017
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| Online Access: | http://irep.iium.edu.my/63045/ http://irep.iium.edu.my/63045/1/63045_Observation%20of%20Top%20Quark%20Production%20_article.pdf http://irep.iium.edu.my/63045/2/63045_Observation%20of%20Top%20Quark%20Production%20_scopus.pdf |
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| author | Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Brandstetter, Johannes Md. Ali, Mohd. Adli |
| author_facet | Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Brandstetter, Johannes Md. Ali, Mohd. Adli |
| author_sort | Sirunyan, A. M. |
| building | IIUM Repository |
| collection | Online Access |
| description | The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of sNN=8.16 TeV. The measurement is performed using events with exactly one isolated electron or muon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb-1. The significance of the tt signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σtt=45±8 nb, consistent with predictions from perturbative quantum chromodynamics. |
| first_indexed | 2025-11-14T17:01:28Z |
| format | Article |
| id | iium-63045 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T17:01:28Z |
| publishDate | 2017 |
| publisher | American Physical Society |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-630452018-06-21T03:02:16Z http://irep.iium.edu.my/63045/ Observation of top quark production in proton-nucleus collisions Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Brandstetter, Johannes Md. Ali, Mohd. Adli Q Science (General) QC Physics The first observation of top quark production in proton-nucleus collisions is reported using proton-lead data collected by the CMS experiment at the CERN LHC at a nucleon-nucleon center-of-mass energy of sNN=8.16 TeV. The measurement is performed using events with exactly one isolated electron or muon candidate and at least four jets. The data sample corresponds to an integrated luminosity of 174 nb-1. The significance of the tt signal against the background-only hypothesis is above 5 standard deviations. The measured cross section is σtt=45±8 nb, consistent with predictions from perturbative quantum chromodynamics. American Physical Society 2017-12-14 Article PeerReviewed application/pdf en http://irep.iium.edu.my/63045/1/63045_Observation%20of%20Top%20Quark%20Production%20_article.pdf application/pdf en http://irep.iium.edu.my/63045/2/63045_Observation%20of%20Top%20Quark%20Production%20_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Asilar, Ece and Bergauer, Thomas and Brandstetter, Johannes and Md. Ali, Mohd. Adli (2017) Observation of top quark production in proton-nucleus collisions. Physical Review Letters, 119 (24). pp. 242001-1. ISSN 0031-9007 E-ISSN 1079-7114 https://journals.aps.org/prl/pdf/10.1103/PhysRevLett.119.242001 10.1103/PhysRevLett.119.242001 |
| spellingShingle | Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Asilar, Ece Bergauer, Thomas Brandstetter, Johannes Md. Ali, Mohd. Adli Observation of top quark production in proton-nucleus collisions |
| title | Observation of top quark production in proton-nucleus collisions |
| title_full | Observation of top quark production in proton-nucleus collisions |
| title_fullStr | Observation of top quark production in proton-nucleus collisions |
| title_full_unstemmed | Observation of top quark production in proton-nucleus collisions |
| title_short | Observation of top quark production in proton-nucleus collisions |
| title_sort | observation of top quark production in proton-nucleus collisions |
| topic | Q Science (General) QC Physics |
| url | http://irep.iium.edu.my/63045/ http://irep.iium.edu.my/63045/ http://irep.iium.edu.my/63045/ http://irep.iium.edu.my/63045/1/63045_Observation%20of%20Top%20Quark%20Production%20_article.pdf http://irep.iium.edu.my/63045/2/63045_Observation%20of%20Top%20Quark%20Production%20_scopus.pdf |