Abstract
Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (σtt ¯bb ¯) and in association with a pair of jets from quarks of any flavor or gluons (σtt ¯jj) and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb−1. The measurements are performed in a fiducial phase space and extrapolated to the full phase space, separately for the dilepton and lepton+jets channels, where lepton corresponds to either an electron or a muon. The results of the measurements in the fiducial phase space for the dilepton and lepton+jets channels, respectively, are σtt ¯jj = 2.36±0.02 (stat)±0.20 (syst) pb and 31.0±0.2 (stat)±2.9 (syst) pb, and for the cross section ratio 0.017 ± 0.001 (stat) ± 0.001 (syst) and 0.020 ± 0.001 (stat) ± 0.001 (syst). The values of σtt ¯bb ¯ are determined from the product of the σtt ¯jj and the cross section ratio, obtaining, respectively, 0.040±0.002 (stat)±0.005 (syst) pb and 0.62±0.03 (stat)±0.07 (syst) pb. These measurements are the most precise to date and are consistent, within the uncertainties, with the standard model expectations obtained using a matrix element calculation at next-to-leading order in quantum chromodynamics matched to a parton shower. [Figure not available: see fulltext.]
| Original language | English |
|---|---|
| Article number | 125 |
| Number of pages | 46 |
| Journal | Journal of High Energy Physics |
| Volume | 2020 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 20 Jul 2020 |
Keywords
- Hadron-Hadron scattering (experiments)
- Jets
- Top physics
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In: Journal of High Energy Physics, Vol. 2020, No. 7, 125, 20.07.2020.
Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - Measurement of the cross section for t t¯ production with additional jets and b jets in pp collisions at √s = 13 TeV
AU - Sirunyan, A. M.
AU - Tumasyan, A.
AU - Adam, W.
AU - Ambrogi, F.
AU - Bergauer, T.
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 - 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 - 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 - Python, Q.
AU - Skovpen, K.
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 - Delannoy, H.
AU - Dorney, B.
AU - Favart, L.
AU - Grebenyuk, A.
AU - Kalsi, A. K.
AU - Popov, A.
AU - Postiau, N.
AU - Starling, E.
AU - Thomas, L.
AU - Vander Velde, C.
AU - Vanlaer, P.
AU - Vannerom, D.
AU - Cornelis, T.
AU - Dobur, D.
AU - Khvastunov, I.
AU - Niedziela, M.
AU - Roskas, C.
AU - Tytgat, M.
AU - Verbeke, W.
AU - Vermassen, B.
AU - Vit, M.
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 - 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 - 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 - Misheva, M.
AU - Rodozov, M.
AU - Shopova, M.
AU - Sultanov, G.
AU - Bonchev, M.
AU - Dimitrov, A.
AU - Ivanov, T.
AU - Litov, L.
AU - Pavlov, B.
AU - Petkov, P.
AU - Fang, W.
AU - Gao, X.
AU - Yuan, L.
AU - Ahmad, M.
AU - Hu, Z.
AU - Wang, Y.
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 - 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 - Wang, Q.
AU - Xiao, M.
AU - Avila, C.
AU - Cabrera, A.
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 - 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 - Abdelalim, A. A.
AU - Abu Zeid, S.
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 - Karimäki, V.
AU - Kim, M. S.
AU - Kinnunen, R.
AU - Lampén, T.
AU - Lassila-Perini, K.
AU - Laurila, S.
AU - Lehti, S.
AU - Lindén, T.
AU - Luukka, P.
AU - Mäenpää, T.
AU - Siikonen, H.
AU - Tuominen, E.
AU - Tuominiemi, J.
AU - Tuuva, T.
AU - Besancon, M.
AU - Laird, E.
AU - Nash, Jordan A.
AU - CMS Collaboration
PY - 2020/7/20
Y1 - 2020/7/20
N2 - Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (σtt ¯bb ¯) and in association with a pair of jets from quarks of any flavor or gluons (σtt ¯jj) and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb−1. The measurements are performed in a fiducial phase space and extrapolated to the full phase space, separately for the dilepton and lepton+jets channels, where lepton corresponds to either an electron or a muon. The results of the measurements in the fiducial phase space for the dilepton and lepton+jets channels, respectively, are σtt ¯jj = 2.36±0.02 (stat)±0.20 (syst) pb and 31.0±0.2 (stat)±2.9 (syst) pb, and for the cross section ratio 0.017 ± 0.001 (stat) ± 0.001 (syst) and 0.020 ± 0.001 (stat) ± 0.001 (syst). The values of σtt ¯bb ¯ are determined from the product of the σtt ¯jj and the cross section ratio, obtaining, respectively, 0.040±0.002 (stat)±0.005 (syst) pb and 0.62±0.03 (stat)±0.07 (syst) pb. These measurements are the most precise to date and are consistent, within the uncertainties, with the standard model expectations obtained using a matrix element calculation at next-to-leading order in quantum chromodynamics matched to a parton shower. [Figure not available: see fulltext.]
AB - Measurements of the cross section for the production of top quark pairs in association with a pair of jets from bottom quarks (σtt ¯bb ¯) and in association with a pair of jets from quarks of any flavor or gluons (σtt ¯jj) and their ratio are presented. The data were collected in proton-proton collisions at a center-of-mass energy of 13 TeV by the CMS experiment at the LHC in 2016 and correspond to an integrated luminosity of 35.9 fb−1. The measurements are performed in a fiducial phase space and extrapolated to the full phase space, separately for the dilepton and lepton+jets channels, where lepton corresponds to either an electron or a muon. The results of the measurements in the fiducial phase space for the dilepton and lepton+jets channels, respectively, are σtt ¯jj = 2.36±0.02 (stat)±0.20 (syst) pb and 31.0±0.2 (stat)±2.9 (syst) pb, and for the cross section ratio 0.017 ± 0.001 (stat) ± 0.001 (syst) and 0.020 ± 0.001 (stat) ± 0.001 (syst). The values of σtt ¯bb ¯ are determined from the product of the σtt ¯jj and the cross section ratio, obtaining, respectively, 0.040±0.002 (stat)±0.005 (syst) pb and 0.62±0.03 (stat)±0.07 (syst) pb. These measurements are the most precise to date and are consistent, within the uncertainties, with the standard model expectations obtained using a matrix element calculation at next-to-leading order in quantum chromodynamics matched to a parton shower. [Figure not available: see fulltext.]
KW - Hadron-Hadron scattering (experiments)
KW - Jets
KW - Top physics
UR - http://www.scopus.com/inward/record.url?scp=85088526760&partnerID=8YFLogxK
U2 - 10.1007/JHEP07(2020)125
DO - 10.1007/JHEP07(2020)125
M3 - Article
AN - SCOPUS:85088526760
SN - 1126-6708
VL - 2020
JO - Journal of High Energy Physics
JF - Journal of High Energy Physics
IS - 7
M1 - 125
ER -