Unbinned Deep Learning Jet Substructure Measurement in High $Q^2$ ep collisions 
at HERA

The H1 collaboration,; Andreev, V.; Arratia, M.; Baghdasaryan, A.; Baty, A.; Begzsuren, K.; Bolz, A.; Boudry, V.; Brandt, G.; Britzger, D.; Buniatyan, A.; Bystritskaya, L.; Campbell, A.J.; Cantun Avila, K.B.; Cerny, K.; Chekelian, V.; Chen, Z.; Contreras, J.G.; Cunqueiro Mendez, L.; Cvach, J.; Dainton, J.B.; Daum, K.; Deshpande, A.; Diaconu, C.; Eckerlin, G.; Egli, S.; Elsen, E.; Favart, L.; Fedotov, A.; Feltesse, J.; Fleischer, M.; Fomenko, A.; Gal, C.; Gayler, J.; Goerlich, L.; Gogitidze, N.; Gouzevitch, M.; Grab, C.; Greenshaw, T.; Grindhammer, G.; Haidt, D.; Henderson, R.C.W.; Hladký, J.; Hoffmann, D.; Horisberger, R.; Hreus, T.; Huber, F.; Jacobs, P.M.; Jacquet, M.; Janssen, T.; Jung, A.W.; Jung, H.; Kapichine, M.; Katzy, J.; Kiesling, C.; Klein, M.; Kleinwort, C.; Klest, H.T.; Kogler, R.; Kostka, P.; Kretzschmar, J.; Krücker, D.; Krüger, K.; Landon, M.P.J.; Lange, W.; Laycock, P.; Lee, S.H.; Levonian, S.; Lin, J.; Lipka, K.; List, B.; List, J.; Li, W.; Lobodzinski, B.; Long, O.R.; Malinovski, E.; Martyn, H.-U.; Maxfield, S.J.; Mehta, A.; Meyer, A.B.; Meyer, J.; Mikocki, S.; Mikuni, V.M.; Mondal, M.M.; Morozov, A.; Müller, K.; Nachman, B.; Naumann, Th.; Newman, P.R.; Niebuhr, C.; Nowak, G.; Olsson, J.E.; Ozerov, D.; Park, S.; Pascaud, C.; Patel, G.D.; Perez, E.; Petrukhin, A.; Picuric, I.; Pitzl, D.; Polifka, R.; Preins, S.; Radescu, V.; Raicevic, N.; Ravdandorj, T.; Reimer, P.; Rizvi, E.; Robmann, P.; Roosen, R.; Rostovtsev, A.; Rotaru, M.; Sankey, D.P.C.; Sauter, M.; Sauvan, E.; Schmitt, S.; Schmookler, B.A.; Schoeffel, L.; Schöning, A.; Sefkow, F.; Shushkevich, S.; Soloviev, Y.; Sopicki, P.; South, D.; Spaskov, V.; Specka, A.; Steder, M.; Stella, B.; Straumann, U.; Sun, C.; Sykora, T.; Thompson, P.D.; Traynor, D.; Tseepeldorj, B.; Tu, Z.; Valkárová, A.; Vallée, C.; Van Mechelen, P.; Žáček, J.; Žlebčík, R.; Wegener, D.; Wünsch, E.; Zhang, J.; Zhang, Z.; Zohrabyan, H.; Zomer, F.

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Unbinned Deep Learning Jet Substructure Measurement in High $Q^2$ ep collisions at HERA

MPS-Authors

The H1 collaboration,
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Andreev, V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Arratia, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Baghdasaryan, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Baty, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Begzsuren, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bolz, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Boudry, V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Brandt, G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Britzger, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Buniatyan, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Bystritskaya, L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Campbell, A.J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cantun Avila, K.B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cerny, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Chekelian, V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Chen, Z.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Contreras, J.G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cunqueiro Mendez, L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Cvach, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Dainton, J.B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Daum, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Deshpande, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Diaconu, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Eckerlin, G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Egli, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Elsen, E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Favart, L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Fedotov, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Feltesse, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Fleischer, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Fomenko, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gal, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gayler, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Goerlich, L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gogitidze, N.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Gouzevitch, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Grab, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Greenshaw, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Grindhammer, G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Haidt, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Henderson, R.C.W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hladký, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hoffmann, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Horisberger, R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Hreus, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Huber, F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jacobs, P.M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jacquet, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Janssen, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jung, A.W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Jung, H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kapichine, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Katzy, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kiesling, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Klein, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kleinwort, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Klest, H.T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kogler, R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kostka, P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Kretzschmar, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Krücker, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Krüger, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Landon, M.P.J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lange, W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Laycock, P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lee, S.H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Levonian, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lin, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lipka, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

List, B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

List, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Li, W.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Lobodzinski, B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Long, O.R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Malinovski, E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Martyn, H.-U.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Maxfield, S.J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mehta, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Meyer, A.B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Meyer, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mikocki, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mikuni, V.M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Mondal, M.M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Morozov, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Müller, K.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Nachman, B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Naumann, Th.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Newman, P.R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Niebuhr, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Nowak, G.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Olsson, J.E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ozerov, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Park, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pascaud, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Patel, G.D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Perez, E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Petrukhin, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Picuric, I.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Pitzl, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Polifka, R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Preins, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Radescu, V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Raicevic, N.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Ravdandorj, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Reimer, P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Rizvi, E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Robmann, P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Roosen, R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Rostovtsev, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Rotaru, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sankey, D.P.C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sauter, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sauvan, E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schmitt, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schmookler, B.A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schoeffel, L.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Schöning, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sefkow, F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Shushkevich, S.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Soloviev, Y.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sopicki, P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

South, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Spaskov, V.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Specka, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Steder, M.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Stella, B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Straumann, U.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sun, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Sykora, T.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Thompson, P.D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Traynor, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Tseepeldorj, B.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Tu, Z.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Valkárová, A.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Vallée, C.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Van Mechelen, P.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Žáček, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Žlebčík, R.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Wegener, D.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Wünsch, E.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zhang, J.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zhang, Z.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zohrabyan, H.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

Zomer, F.
Max Planck Institute for Physics, Max Planck Society and Cooperation Partners;

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Citation

The H1 collaboration, Andreev, V., Arratia, M., Baghdasaryan, A., Baty, A., Begzsuren, K., et al. (2023). Unbinned Deep Learning Jet Substructure Measurement in High $Q^2$ ep collisions at HERA. Physics Letters B, 844, 138101. Retrieved from https://publications.mppmu.mpg.de/?action=search&mpi=MPP-2023-56.

Cite as: https://hdl.handle.net/21.11116/0000-000F-12A4-3

Abstract

The radiation pattern within high energy quark- and gluon-initiated jets (jet substructure) is used extensively as a precision probe of the strong force as well as an environment for optimizing event generators with numerous applications in high energy particle and nuclear physics. Looking at electron-proton collisions is of particular interest as many of the complications present at hadron colliders are absent. A detailed study of modern jet substructure observables, jet angularities, in electron-proton collisions is presented using data recorded using the H1 detector at HERA. The measurement is unbinned and multi-dimensional, using machine learning to correct for detector effects. All of the available reconstructed object information of the respective jets is interpreted by a graph neural network, achieving superior precision on a selected set of jet angularities. Training these networks was enabled by the use of a large number of GPUs in the Perlmutter supercomputer at Berkeley Lab. The particle jets are reconstructed in the laboratory frame, using the $k_{\mathrm{T}}$ jet clustering algorithm. Results are reported at high transverse momentum transfer $Q^2>150$ GeV${}^2$, and inelasticity $0.2 < y < 0.7$. The analysis is also performed in sub-regions of $Q^2$, thus probing scale dependencies of the substructure variables. The data are compared with a variety of predictions and point towards possible improvements of such models.