Search for CP violating top quark couplings in pp collisions at √s = 13 TeV

The CMS collaboration

doi:10.1007/JHEP07(2023)023

Search for CP violating top quark couplings in pp collisions at √s = 13 TeV

The CMS collaboration

A. Alikhanian Yerevan Institute of Physics
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3 Citations (Scopus)

Abstract

Results are presented from a search for CP violation in top quark pair production, using proton-proton collisions at a center-of-mass energy of 13 TeV. The data used for this analysis consist of final states with two charged leptons collected by the CMS experiment, and correspond to an integrated luminosity of 35.9 fb⁻¹. The search uses two observables, O₁ and O₃, which are Lorentz scalars. The observable O₁ is constructed from the four-momenta of the charged leptons and the reconstructed top quarks, while O₃ consists of the four-momenta of the charged leptons and the b quarks originating from the top quarks. Asymmetries in these observables are sensitive to CP violation, and their measurement is used to determine the chromoelectric dipole moment of the top quark. The results are consistent with the expectation from the standard model. [Figure not available: see fulltext.].

Original language	English
Article number	23
Journal	Journal of High Energy Physics
Volume	2023
Issue number	7
DOIs	https://doi.org/10.1007/JHEP07(2023)023
Publication status	Published - Jul 2023
Externally published	Yes

Keywords

CP Violation
Hadron-Hadron Scattering
Top Physics

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10.1007/JHEP07(2023)023

Cite this

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title = "Search for CP violating top quark couplings in pp collisions at √s = 13 TeV",

abstract = "Results are presented from a search for CP violation in top quark pair production, using proton-proton collisions at a center-of-mass energy of 13 TeV. The data used for this analysis consist of final states with two charged leptons collected by the CMS experiment, and correspond to an integrated luminosity of 35.9 fb−1. The search uses two observables, O1 and O3, which are Lorentz scalars. The observable O1 is constructed from the four-momenta of the charged leptons and the reconstructed top quarks, while O3 consists of the four-momenta of the charged leptons and the b quarks originating from the top quarks. Asymmetries in these observables are sensitive to CP violation, and their measurement is used to determine the chromoelectric dipole moment of the top quark. The results are consistent with the expectation from the standard model. [Figure not available: see fulltext.].",

keywords = "CP Violation, Hadron-Hadron Scattering, Top Physics",

author = "\{The CMS collaboration\} and A. Tumasyan and W. Adam and T. Bergauer and M. Dragicevic and \{Escalante Del Valle\}, A. and R. Fr{\"u}hwirth and M. Jeitler and N. Krammer and L. Lechner and D. Liko and I. Mikulec and Pitters, \{F. M.\} and J. Schieck and R. Sch{\"o}fbeck and M. Spanring and S. Templ and W. Waltenberger and Wulz, \{C. E.\} and M. Zarucki and Darwish, \{M. R.\} and \{De Wolf\}, \{E. A.\} and T. Janssen and T. Kello and A. Lelek and M. Pieters and \{Rejeb Sfar\}, H. and \{Van Mechelen\}, P. and \{Van Putte\}, S. and \{Van Remortel\}, N. and F. Blekman and Bols, \{E. S.\} and J. D'hondt and \{De Clercq\}, J. and D. Lontkovskyi and S. Lowette and I. Marchesini and S. Moortgat and A. Morton and D. M{\"u}ller and Sahasransu, \{A. R.\} and S. Tavernier and \{Van Doninck\}, W. and \{Van Mulders\}, P. and D. Beghin and B. Bilin and B. Clerbaux and \{De Lentdecker\}, G. and B. Dorney and L. Favart and O. Bouhali",

note = "Publisher Copyright: {\textcopyright} 2023, The Author(s).",

year = "2023",

month = jul,

doi = "10.1007/JHEP07(2023)023",

language = "English",

volume = "2023",

journal = "Journal of High Energy Physics",

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T1 - Search for CP violating top quark couplings in pp collisions at √s = 13 TeV

AU - The CMS collaboration

AU - Tumasyan, A.

AU - Adam, W.

AU - Bergauer, T.

AU - Dragicevic, M.

AU - Escalante Del Valle, A.

AU - Frühwirth, R.

AU - Jeitler, M.

AU - Krammer, N.

AU - Lechner, L.

AU - Liko, D.

AU - Mikulec, I.

AU - Pitters, F. M.

AU - Schieck, J.

AU - Schöfbeck, R.

AU - Spanring, M.

AU - Templ, S.

AU - Waltenberger, W.

AU - Wulz, C. E.

AU - Zarucki, M.

AU - Darwish, M. R.

AU - De Wolf, E. A.

AU - Janssen, T.

AU - Kello, T.

AU - Lelek, A.

AU - Pieters, M.

AU - Rejeb Sfar, H.

AU - Van Mechelen, P.

AU - Van Putte, S.

AU - Van Remortel, N.

AU - Blekman, F.

AU - Bols, E. S.

AU - D'hondt, J.

AU - De Clercq, J.

AU - Lontkovskyi, D.

AU - Lowette, S.

AU - Marchesini, I.

AU - Moortgat, S.

AU - Morton, A.

AU - Müller, D.

AU - Sahasransu, A. R.

AU - Tavernier, S.

AU - Van Doninck, W.

AU - Van Mulders, P.

AU - Beghin, D.

AU - Bilin, B.

AU - Clerbaux, B.

AU - De Lentdecker, G.

AU - Dorney, B.

AU - Favart, L.

AU - Bouhali, O.

PY - 2023/7

Y1 - 2023/7

N2 - Results are presented from a search for CP violation in top quark pair production, using proton-proton collisions at a center-of-mass energy of 13 TeV. The data used for this analysis consist of final states with two charged leptons collected by the CMS experiment, and correspond to an integrated luminosity of 35.9 fb−1. The search uses two observables, O1 and O3, which are Lorentz scalars. The observable O1 is constructed from the four-momenta of the charged leptons and the reconstructed top quarks, while O3 consists of the four-momenta of the charged leptons and the b quarks originating from the top quarks. Asymmetries in these observables are sensitive to CP violation, and their measurement is used to determine the chromoelectric dipole moment of the top quark. The results are consistent with the expectation from the standard model. [Figure not available: see fulltext.].

AB - Results are presented from a search for CP violation in top quark pair production, using proton-proton collisions at a center-of-mass energy of 13 TeV. The data used for this analysis consist of final states with two charged leptons collected by the CMS experiment, and correspond to an integrated luminosity of 35.9 fb−1. The search uses two observables, O1 and O3, which are Lorentz scalars. The observable O1 is constructed from the four-momenta of the charged leptons and the reconstructed top quarks, while O3 consists of the four-momenta of the charged leptons and the b quarks originating from the top quarks. Asymmetries in these observables are sensitive to CP violation, and their measurement is used to determine the chromoelectric dipole moment of the top quark. The results are consistent with the expectation from the standard model. [Figure not available: see fulltext.].

KW - CP Violation

KW - Hadron-Hadron Scattering

KW - Top Physics

UR - https://www.scopus.com/pages/publications/85166271575

U2 - 10.1007/JHEP07(2023)023

DO - 10.1007/JHEP07(2023)023

M3 - Article

AN - SCOPUS:85166271575

SN - 1029-8479

VL - 2023

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 23

ER -

Search for CP violating top quark couplings in pp collisions at √s = 13 TeV

Abstract

Keywords

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