Abstract
Results are presented for an extraction of the top quark Yukawa coupling from top quark-antiquark (tt) kinematic distributions in the lepton plus jets final state in proton-proton collisions, based on data collected by the CMS experiment at the LHC at s=13 TeV, corresponding to an integrated luminosity of 35.8 fb-1. Corrections from weak boson exchange, including Higgs bosons, between the top quarks can produce large distortions of differential distributions near the energy threshold of tt production. Therefore, precise measurements of these distributions are sensitive to the Yukawa coupling. Top quark events are reconstructed with at least three jets in the final state, and a novel technique is introduced to reconstruct the tt system for events with one missing jet. This technique enhances the experimental sensitivity in the low invariant mass region, Mtt. The data yields in Mtt, the rapidity difference |yt-yt|, and the number of reconstructed jets are compared with distributions representing different Yukawa couplings. These comparisons are used to measure the ratio of the top quark Yukawa coupling to its standard model predicted value to be 1.07-0.43+0.34 with an upper limit of 1.67 at the 95% confidence level.
| Original language | English |
|---|---|
| Article number | 072007 |
| Number of pages | 29 |
| Journal | Physical Review D |
| Volume | 100 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 17 Oct 2019 |
Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver
}
In: Physical Review D, Vol. 100, No. 7, 072007, 17.10.2019.
Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Measurement of the top quark Yukawa coupling from t t kinematic distributions in the lepton+jets final state in proton-proton collisions at s =13 TeV
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Ambrogi, F.
AU - Bergauer, T.
AU - Brandstetter, J.
AU - Dragicevic, M.
AU - Erö, J.
AU - Escalante Del Valle, A.
AU - Flechl, M.
AU - Frühwirth, R.
AU - Jeitler, M.
AU - Krammer, N.
AU - Krätschmer, I.
AU - Liko, D.
AU - Madlener, T.
AU - Mikulec, I.
AU - Rad, N.
AU - Schieck, J.
AU - Schöfbeck, R.
AU - Spanring, M.
AU - Spitzbart, D.
AU - Waltenberger, W.
AU - Wittmann, J.
AU - Wulz, C. E.
AU - Zarucki, M.
AU - Drugakov, V.
AU - Mossolov, V.
AU - Suarez Gonzalez, J.
AU - Darwish, M. R.
AU - De Wolf, E. A.
AU - Di Croce, D.
AU - Janssen, X.
AU - Lauwers, J.
AU - Lelek, A.
AU - Pieters, M.
AU - Rejeb Sfar, H.
AU - Van Haevermaet, H.
AU - Van Mechelen, P.
AU - Van Putte, S.
AU - Van Remortel, N.
AU - Blekman, F.
AU - Bols, E. S.
AU - Chhibra, S. S.
AU - D'Hondt, J.
AU - De Clercq, J.
AU - Lontkovskyi, D.
AU - Lowette, S.
AU - Marchesini, I.
AU - Moortgat, S.
AU - Moreels, L.
AU - Python, Q.
AU - Skovpen, K.
AU - Tavernier, S.
AU - Van Doninck, W.
AU - Van Mulders, P.
AU - Van Parijs, I.
AU - Beghin, D.
AU - Bilin, B.
AU - Brun, H.
AU - Clerbaux, B.
AU - De Lentdecker, G.
AU - Delannoy, H.
AU - Dorney, B.
AU - Favart, L.
AU - Grebenyuk, A.
AU - Kalsi, A. K.
AU - Luetic, J.
AU - Popov, A.
AU - Postiau, N.
AU - Starling, E.
AU - Thomas, L.
AU - Vander Velde, C.
AU - Vanlaer, P.
AU - Vannerom, D.
AU - Wang, Q.
AU - Cornelis, T.
AU - Dobur, D.
AU - Khvastunov, I.
AU - Roskas, C.
AU - Trocino, D.
AU - Tytgat, M.
AU - Verbeke, W.
AU - Vermassen, B.
AU - Vit, M.
AU - Zaganidis, N.
AU - Bondu, O.
AU - Bruno, G.
AU - Caputo, C.
AU - David, P.
AU - Delaere, C.
AU - Delcourt, M.
AU - Giammanco, A.
AU - Lemaitre, V.
AU - Magitteri, A.
AU - Prisciandaro, J.
AU - Saggio, A.
AU - Vidal Marono, M.
AU - Vischia, P.
AU - Zobec, J.
AU - Alves, F. L.
AU - Alves, G. A.
AU - Correia Silva, G.
AU - Hensel, C.
AU - Moraes, A.
AU - Rebello Teles, P.
AU - Belchior Batista Das Chagas, E.
AU - Carvalho, W.
AU - Chinellato, J.
AU - Coelho, E.
AU - Da Costa, E. M.
AU - Da Silveira, G. G.
AU - De Jesus Damiao, D.
AU - De Oliveira Martins, C.
AU - Fonseca De Souza, S.
AU - Huertas Guativa, L. M.
AU - Malbouisson, H.
AU - Martins, J.
AU - Matos Figueiredo, D.
AU - Medina Jaime, M.
AU - Melo De Almeida, M.
AU - Mora Herrera, C.
AU - Mundim, L.
AU - Nogima, H.
AU - Prado Da Silva, W. L.
AU - Sanchez Rosas, L. J.
AU - Santoro, A.
AU - Sznajder, A.
AU - Thiel, M.
AU - Tonelli Manganote, E. J.
AU - Torres Da Silva De Araujo, F.
AU - Vilela Pereira, A.
AU - Ahuja, S.
AU - Bernardes, C. A.
AU - Calligaris, L.
AU - Fernandez Perez Tomei, T. R.
AU - Gregores, E. M.
AU - Lemos, D. S.
AU - Mercadante, P. G.
AU - Novaes, S. F.
AU - Padula, Sandra S.
AU - Aleksandrov, A.
AU - Antchev, G.
AU - Hadjiiska, R.
AU - Iaydjiev, P.
AU - Marinov, A.
AU - Misheva, M.
AU - Rodozov, M.
AU - Shopova, M.
AU - Sultanov, G.
AU - Dimitrov, A.
AU - Litov, L.
AU - Pavlov, B.
AU - Petkov, P.
AU - Fang, W.
AU - Gao, X.
AU - Yuan, L.
AU - Ahmad, M.
AU - Chen, G. M.
AU - Chen, H. S.
AU - Chen, M.
AU - Jiang, C. H.
AU - Leggat, D.
AU - Liao, H.
AU - Liu, Z.
AU - Shaheen, S. M.
AU - Spiezia, A.
AU - Tao, J.
AU - Yazgan, E.
AU - Zhang, H.
AU - Zhang, S.
AU - Zhao, J.
AU - Agapitos, A.
AU - Ban, Y.
AU - Chen, G.
AU - Levin, A.
AU - Li, J.
AU - Li, L.
AU - Li, Q.
AU - Mao, Y.
AU - Qian, S. J.
AU - Wang, D.
AU - Hu, Z.
AU - Wang, Y.
AU - Avila, C.
AU - Cabrera, A.
AU - Chaparro Sierra, L. F.
AU - Florez, C.
AU - González Hernández, C. F.
AU - Segura Delgado, M. A.
AU - Mejia Guisao, J.
AU - Ruiz Alvarez, J. D.
AU - Salazar González, C. A.
AU - Vanegas Arbelaez, N.
AU - Giljanović, D.
AU - Godinovic, N.
AU - Lelas, D.
AU - Puljak, I.
AU - Sculac, T.
AU - Antunovic, Z.
AU - Kovac, M.
AU - Brigljevic, V.
AU - Ceci, S.
AU - Ferencek, D.
AU - Kadija, K.
AU - Mesic, B.
AU - Roguljic, M.
AU - Starodumov, A.
AU - Susa, T.
AU - Ather, M. W.
AU - Attikis, A.
AU - Erodotou, E.
AU - Ioannou, A.
AU - Kolosova, M.
AU - Konstantinou, S.
AU - Mavromanolakis, G.
AU - Mousa, J.
AU - Nicolaou, C.
AU - Ptochos, F.
AU - Razis, P. A.
AU - Rykaczewski, H.
AU - Tsiakkouri, D.
AU - Finger, M.
AU - Finger, M.
AU - Kveton, A.
AU - Tomsa, J.
AU - Ayala, E.
AU - Carrera Jarrin, E.
AU - Abdalla, H.
AU - Abdelalim, A. A.
AU - Bhowmik, S.
AU - Carvalho Antunes De Oliveira, A.
AU - Dewanjee, R. K.
AU - Ehataht, K.
AU - Kadastik, M.
AU - Raidal, M.
AU - Veelken, C.
AU - Eerola, P.
AU - Forthomme, L.
AU - Kirschenmann, H.
AU - Osterberg, K.
AU - Voutilainen, M.
AU - Garcia, F.
AU - Havukainen, J.
AU - Heikkilä, J. K.
AU - Järvinen, T.
AU - Karimäki, V.
AU - Kinnunen, R.
AU - Lampén, T.
AU - Nash, J.
AU - CMS Collaboration
PY - 2019/10/17
Y1 - 2019/10/17
N2 - Results are presented for an extraction of the top quark Yukawa coupling from top quark-antiquark (tt) kinematic distributions in the lepton plus jets final state in proton-proton collisions, based on data collected by the CMS experiment at the LHC at s=13 TeV, corresponding to an integrated luminosity of 35.8 fb-1. Corrections from weak boson exchange, including Higgs bosons, between the top quarks can produce large distortions of differential distributions near the energy threshold of tt production. Therefore, precise measurements of these distributions are sensitive to the Yukawa coupling. Top quark events are reconstructed with at least three jets in the final state, and a novel technique is introduced to reconstruct the tt system for events with one missing jet. This technique enhances the experimental sensitivity in the low invariant mass region, Mtt. The data yields in Mtt, the rapidity difference |yt-yt|, and the number of reconstructed jets are compared with distributions representing different Yukawa couplings. These comparisons are used to measure the ratio of the top quark Yukawa coupling to its standard model predicted value to be 1.07-0.43+0.34 with an upper limit of 1.67 at the 95% confidence level.
AB - Results are presented for an extraction of the top quark Yukawa coupling from top quark-antiquark (tt) kinematic distributions in the lepton plus jets final state in proton-proton collisions, based on data collected by the CMS experiment at the LHC at s=13 TeV, corresponding to an integrated luminosity of 35.8 fb-1. Corrections from weak boson exchange, including Higgs bosons, between the top quarks can produce large distortions of differential distributions near the energy threshold of tt production. Therefore, precise measurements of these distributions are sensitive to the Yukawa coupling. Top quark events are reconstructed with at least three jets in the final state, and a novel technique is introduced to reconstruct the tt system for events with one missing jet. This technique enhances the experimental sensitivity in the low invariant mass region, Mtt. The data yields in Mtt, the rapidity difference |yt-yt|, and the number of reconstructed jets are compared with distributions representing different Yukawa couplings. These comparisons are used to measure the ratio of the top quark Yukawa coupling to its standard model predicted value to be 1.07-0.43+0.34 with an upper limit of 1.67 at the 95% confidence level.
UR - http://www.scopus.com/inward/record.url?scp=85074337306&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.100.072007
DO - 10.1103/PhysRevD.100.072007
M3 - Article
AN - SCOPUS:85074337306
SN - 2470-0010
VL - 100
JO - Physical Review D
JF - Physical Review D
IS - 7
M1 - 072007
ER -