Differential cross section measurements for the production of top quark pairs and of additional jets using dilepton events from pp collisions at &lt;em&gt;√s&lt;/em&gt; = 13 TeV

Tumasyan, A.; Adam, W.; Andrejkovic, J.W.; Bergauer, T.; Chatterjee, S.; Damanakis, K.; Dragicevic, M.; Escalante Del Valle, A.; Hussain, P.S.; Jeitler, M.; Caminada, L.; Ebrahimi, A.; Erdmann, W.; Horisberger, R.; Ingram, Q.; Kaestli, H.C.; Kotlinski, D.; Lange, C.; Missiroli, M.; Noehte, L.; Rohe, T.; Makarenko, V.

doi:10.1007/JHEP02(2025)064

Differential cross section measurements for the production of top quark pairs and of additional jets using dilepton events from pp collisions at √s = 13 TeV

Tumasyan A, Adam W, Andrejkovic JW, Bergauer T, Chatterjee S, Damanakis K, Dragicevic M, Escalante Del Valle A, Hussain PS, Jeitler M, Caminada L, Ebrahimi A, Erdmann W, Horisberger R, Ingram Q, Kaestli HC, Kotlinski D, Lange C, Missiroli M, Noehte L, Rohe T, Makarenko V, et al.

Citation

Tumasyan, A., Adam, W., Andrejkovic, J. W., Bergauer, T., Chatterjee, S., Damanakis, K., … Makarenko, V. (2025). Differential cross section measurements for the production of top quark pairs and of additional jets using dilepton events from pp collisions at √s = 13 TeV. Journal of High Energy Physics, 2025(2), 64 (225 pp.). https://doi.org/10.1007/JHEP02(2025)064

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:75714

Differential cross sections for top quark pair (tt¯) production are measured in proton-proton collisions at a center-of-mass energy of 13 TeV using a sample of events containing two oppositely charged leptons. The data were recorded with the CMS detector at the CERN Large Hadron Collider and correspond to an integrated luminosity of 138 fb⁻¹. The differential cross sections are measured as functions of kinematic observables of the tt¯ system, the top quark and antiquark and their decay products, as well as of the number of additional jets in the event. The results are presented as functions of up to three variables and are corrected to the parton and particle levels. When compared to standard model predictions based on quantum chromodynamics at different levels of accuracy, it is found that the calculations do not always describe the observed data. The deviations are found to be largest for the multi-differential cross sections.

Details

Publication Type

Journal Article

Title

Differential cross section measurements for the production of top quark pairs and of additional jets using dilepton events from pp collisions at √s = 13 TeV

Author(s)

Tumasyan, A.

Adam, W.

Andrejkovic, J.W.

Bergauer, T.

Chatterjee, S.

Damanakis, K.

Dragicevic, M.

Escalante Del Valle, A.

Hussain, P.S.

Jeitler, M.

Caminada, L. (3202 High Energy Particle Physics)