@article{Tumasyan:2023:10.1007/JHEP07(2023)092,
author = {Tumasyan, A and Adam, W and Andrejkovic, JW and Bergauer, T and Chatterjee, S and Damanakis, K and Dragicevic, M and Escalante, Del Valle A and Hussain, PS and Jeitler, M and Krammer, N and Lechner, L and Liko, D and Mikulec, I and Paulitsch, P and Pitters, FM and Schieck, J and Schöfbeck, R and Schwarz, D and Templ, S and Waltenberger, W and Wulz, CE and Darwish, MR and Janssen, T and Kello, T and Rejeb, Sfar H and Van, Mechelen P and Bols, ES and DHondt, J and De, Moor A and Delcourt, M and El, Faham H and Lowette, S and Moortgat, S and Morton, A and Müller, D and Sahasransu, AR and Tavernier, S and Van, Doninck W and Vannerom, D and Clerbaux, B and De, Lentdecker G and Favart, L and Jaramillo, J and Lee, K and Mahdavikhorrami, M and Makarenko, I and Malara, A and Paredes, S and Pétré, L and Postiau, N and Starling, E and Thomas, L and Vanden, Bemden M and Vander, Velde C and Vanlaer, P and Dobur, D and Knolle, J and Lambrecht, L and Mestdach, G and Niedziela, M and Rendón, C and Ros},
doi = {10.1007/JHEP07(2023)092},
journal = {Journal of High Energy Physics},
title = {Search for CP violation in t t ¯ H and tH production in multilepton channels in proton-proton collisions at √s = 13 TeV},
url = {http://dx.doi.org/10.1007/JHEP07(2023)092},
volume = {2023},
year = {2023}
}

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TY  - JOUR
AB  - The charge-parity (CP) structure of the Yukawa interaction between the Higgs (H) boson and the top quark is measured in a data sample enriched in the t t ¯ H and tH associated production, using 138 fb −1 of data collected in proton-proton collisions at s = 13 TeV by the CMS experiment at the CERN LHC. The study targets events where the H boson decays via H → WW or H → ττ and the top quarks decay via t → Wb: the W bosons decay either leptonically or hadronically, and final states characterized by the presence of at least two leptons are studied. Machine learning techniques are applied to these final states to enhance the separation of CP -even from CP -odd scenarios. Two-dimensional confidence regions are set on κ t and κ~ t, which are respectively defined as the CP -even and CP -odd top-Higgs Yukawa coupling modifiers. No significant fractional CP -odd contributions, parameterized by the quantity | fCPHtt | are observed; the parameter is determined to be | fCPHtt | = 0.59 with an interval of (0.24, 0.81) at 68% confidence level. The results are combined with previous results covering the H → ZZ and H → γγ decay modes, yielding two- and one-dimensional confidence regions on κ t and κ~ t, while | fCPHtt | is determined to be | fCPHtt | = 0.28 with an interval of | fCPHtt | < 0.55 at 68% confidence level, in agreement with the standard model CP -even prediction of | fCPHtt | = 0. [Figure not available: see fulltext.].
AU  - Tumasyan,A
AU  - Adam,W
AU  - Andrejkovic,JW
AU  - Bergauer,T
AU  - Chatterjee,S
AU  - Damanakis,K
AU  - Dragicevic,M
AU  - Escalante,Del Valle A
AU  - Hussain,PS
AU  - Jeitler,M
AU  - Krammer,N
AU  - Lechner,L
AU  - Liko,D
AU  - Mikulec,I
AU  - Paulitsch,P
AU  - Pitters,FM
AU  - Schieck,J
AU  - Schöfbeck,R
AU  - Schwarz,D
AU  - Templ,S
AU  - Waltenberger,W
AU  - Wulz,CE
AU  - Darwish,MR
AU  - Janssen,T
AU  - Kello,T
AU  - Rejeb,Sfar H
AU  - Van,Mechelen P
AU  - Bols,ES
AU  - DHondt,J
AU  - De,Moor A
AU  - Delcourt,M
AU  - El,Faham H
AU  - Lowette,S
AU  - Moortgat,S
AU  - Morton,A
AU  - Müller,D
AU  - Sahasransu,AR
AU  - Tavernier,S
AU  - Van,Doninck W
AU  - Vannerom,D
AU  - Clerbaux,B
AU  - De,Lentdecker G
AU  - Favart,L
AU  - Jaramillo,J
AU  - Lee,K
AU  - Mahdavikhorrami,M
AU  - Makarenko,I
AU  - Malara,A
AU  - Paredes,S
AU  - Pétré,L
AU  - Postiau,N
AU  - Starling,E
AU  - Thomas,L
AU  - Vanden,Bemden M
AU  - Vander,Velde C
AU  - Vanlaer,P
AU  - Dobur,D
AU  - Knolle,J
AU  - Lambrecht,L
AU  - Mestdach,G
AU  - Niedziela,M
AU  - Rendón,C
AU  - Roskas,C
AU  - Samalan,A
AU  - Skovpen,K
AU  - Tytgat,M
AU  - Van,Den Bossche N
AU  - Vermassen,B
AU  - Wezenbeek,L
AU  - Benecke,A
AU  - Bruno,G
AU  - Bury,F
AU  - Caputo,C
AU  - David,P
AU  - Delaere,C
AU  - Donertas,IS
AU  - Giammanco,A
AU  - Jaffel,K
AU  - Jain,S
AU  - Lemaitre,V
AU  - Mondal,K
AU  - Prisciandaro,J
AU  - Taliercio,A
AU  - Tran,TT
AU  - Vischia,P
AU  - Wertz,S
AU  - Alves,GA
AU  - Coelho,E
AU  - Hensel,C
AU  - Moraes,A
AU  - Rebello,Teles P
AU  - Aldá,Júnior WL
AU  - Alves,Gallo Pereira M
AU  - Barroso,Ferreira Filho M
AU  - Brandao,Malbouisson H
AU  - Carvalho,W
AU  - Chinellato,J
AU  - Da,Costa EM
AU  - Da,Silveira GG
AU  - De,Jesus Damiao D
DO  - 10.1007/JHEP07(2023)092
PY  - 2023///
TI  - Search for CP violation in t t ¯ H and tH production in multilepton channels in proton-proton collisions at √s = 13 TeV
T2  - Journal of High Energy Physics
UR  - http://dx.doi.org/10.1007/JHEP07(2023)092
VL  - 2023
ER  - 

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