Jet substructure quantities are measured using jets groomed with the soft-drop grooming procedure in dijet events from 32.9 fb-1 of pp collisions collected with the ATLAS detector at s=13 TeV. These observables are sensitive to a wide range of QCD phenomena. Some observables, such as the jet mass and opening angle between the two subjets which pass the soft-drop condition, can be described by a high-order (resummed) series in the strong coupling constant αS. Other observables, such as the momentum sharing between the two subjets, are nearly independent of αS. These observables can be constructed using all interacting particles or using only charged particles reconstructed in the inner tracking detectors. Track-based versions of these observables are not collinear safe, but are measured more precisely, and universal nonperturbative functions can absorb the collinear singularities. The unfolded data are directly compared with QCD calculations and hadron-level Monte Carlo simulations. The...

Measurement of soft-drop jet observables in pp collisions with the ATLAS detector at s =13 TeV / Aad, ., G., a.A., B., a.A., D. C., a.A.A., A., a.A., K., a.A., D. K., a.A., S. H., a.A., O. S., a.A., N. L., a.A., H., a.A., H., a.A., Y., a.A., B. S., a.A., B., a.A., S., a.A., L., a.A.B., C., a.A., L., a.A., L., a.A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 101:5(2020). [10.1103/PhysRevD.101.052007]

Measurement of soft-drop jet observables in pp collisions with the ATLAS detector at s =13 TeV

Follega F. M.;Iuppa R.;Ricci E.;
2020-01-01

Abstract

Jet substructure quantities are measured using jets groomed with the soft-drop grooming procedure in dijet events from 32.9 fb-1 of pp collisions collected with the ATLAS detector at s=13 TeV. These observables are sensitive to a wide range of QCD phenomena. Some observables, such as the jet mass and opening angle between the two subjets which pass the soft-drop condition, can be described by a high-order (resummed) series in the strong coupling constant αS. Other observables, such as the momentum sharing between the two subjets, are nearly independent of αS. These observables can be constructed using all interacting particles or using only charged particles reconstructed in the inner tracking detectors. Track-based versions of these observables are not collinear safe, but are measured more precisely, and universal nonperturbative functions can absorb the collinear singularities. The unfolded data are directly compared with QCD calculations and hadron-level Monte Carlo simulations. The...
2020
5
Aad, ; G., and Abbott; B., and Abbott; D. C., and Abed Abud; A., and Abeling; K., and Abhayasinghe; D. K., and Abidi; S. H., and Abouzeid; O. S., and ...espandi
Measurement of soft-drop jet observables in pp collisions with the ATLAS detector at s =13 TeV / Aad, ., G., a.A., B., a.A., D. C., a.A.A., A., a.A., K., a.A., D. K., a.A., S. H., a.A., O. S., a.A., N. L., a.A., H., a.A., H., a.A., Y., a.A., B. S., a.A., B., a.A., S., a.A., L., a.A.B., C., a.A., L., a.A., L., a.A., et al.. - In: PHYSICAL REVIEW D. - ISSN 2470-0010. - 101:5(2020). [10.1103/PhysRevD.101.052007]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/318205
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