Measurement of the t-channel single top quark cross section in proton-proton collisions at √s=5.02 TeV

Q: What does this research mean for the field?

The combined cross section of single top quark and single top antiquark production in proton-proton collisions at 5.02 TeV is measured to be 25.5 pb. Novelty: ClaimNovelty.NOVEL_FINDING. Consensus alignment: ConsensusAlignment.NEUTRAL.

Aram Hayrapetyan; Vladimir Makarenko; A. Tumasyan; W. Adam; L. Benato; T. Bergauer; M. Dragicevic; C. Giordano; Priya Sajid Hussain; M. Jeitler; Natascha Krammer; A. Li; D. Liko; M. Matthewman; J. Schieck; R. Schöfbeck; Maryam Shooshtari; M. Sonawane; W. Waltenberger; C.-E. Wulz; X. Janssen; H. Kwon; D. Ocampo Henao; T. Van Laer; P. Van Mechelen; Jas Bierkens; N. Breugelmans; J. D’Hondt; Soumya Dansana; A. De Moor; M. Delcourt; F. Heyen; Y. Hong; Pavlo Kashko; S. Lowette; I. Makarenko; D. Müller; S. Tavernier; M. Tytgat; G. P. Van Onsem; S. Van Putte; D. Vannerom; B. Bilin; B. Clerbaux; A. K. Das; I. De Bruyn; G. De Lentdecker; Hugues Evard; L. Favart; P. Gianneios; A. Khalilzadeh; Fakhri Alam Khan; A. Malara; M. A. Shahzad; Archana Sharma; Laurent Thomas; M. Vanden Bemden; C. Vander Velde; P. Vanlaer; F. Zhang; M. De Coen; D. Dobur; G. Gökbulut; David Marckx; K. Skovpen; A. M. Tomaru; N. Van Den Bossche; Jan van der Linden; Jean‐Marc Vanden‐Broeck; Liam Wezenbeek; H. Aarup Petersen; S. Bein; A. Benecke; A. Bethani; G. Bruno; A. Cappati; J. De Favereau De Jeneret; C. Delaere; Francisco Gameiro Casalinho; A. Giammanco; Ahmet Oguz Guzel; V. Lemaitre; V. Lemaitre; Paul Malek; Paola Mastrapasqua; S. Turkcapar; G. A. Alves; M. Barroso Ferreira Filho; E. Coelho; C. Hensel; D. Matos Figueiredo; T. Menezes De Oliveira; C. Mora Herrera; P. Rebello Teles; M. Soeiro; E. J. Tonelli Manganote; A. Vilela Pereira; W. L. Aldá Júnior; H. Brandao Malbouisson; W. Carvalho

doi:10.1007/jhep08(2026)223

August 27, 2026Journal of High Energy PhysicsOpen Access

Measurement of the t-channel single top quark cross section in proton-proton collisions at √s=5.02 TeV

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Key Points

Measure the t-channel single top quark and top antiquark production cross sections in proton-proton collisions at a center-of-mass energy of 5.02 TeV.
Analyzed proton-proton collision data collected by the CMS detector at the CERN LHC in 2017 at a center-of-mass energy of 5.02 TeV, corresponding to an integrated luminosity of 302 pb⁻¹.
Selected collision events containing exactly one isolated electron or muon and two or more jets, with at least one jet identified as originating from b-quark fragmentation.
Combined cross section for single top quark and antiquark production was measured at 25.5 +3.6/-3.5 (stat) +4.2/-3.9 (syst) ± 0.5 (lumi) pb.
Individual cross sections were 17.7 +2.9/-2.7 (stat) +2.6/-2.4 (syst) ± 0.3 (lumi) pb for top quarks and 6.7 +2.4/-1.6 (stat) +2.1/-2.5 (syst) ± 0.1 (lumi) pb for top antiquarks.
Production cross section ratio was measured to be 2.7 +1.5/-0.8 (stat) +1.2/-0.3 (syst).

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Implication

Particle collider analysis uncovers t-channel single top quark cross sections in 5.02 TeV proton collisions, indicating precise electroweak baseline parameters.

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Hayrapetyan et al. (2026) studied this question.

synapsesocial.com/papers/6a93efc06c1a8fb52e79bdbd https://doi.org/10.1007/jhep08(2026)223

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Measurement of the t-channel single top quark cross section in proton-proton collisions at √s=5.02 TeV

Key Points

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Implication

Discussion

Cite This Study

Measurement of the t-channel single top quark cross section in proton-proton collisions at √s=5.02 TeV

Key Points

No abstract yet

Implication

Discussion

Cite This Study

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