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1. Unbinned deep learning jet substructure measurement in high Q2 ep collisions at HERA

Author

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

Published
2023
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2. Unbinned deep learning jet substructure measurement in high Q2 ep collisions at HERA

Author

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., Cvach, J., Dainton, J.B., Daum, K., Deshpande, A., Diaconu, C., Drees, A., 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., Hessler, J., Hladký, J., Hoffmann, D., Horisberger, R., Hreus, T., Huber, F., Jacobs, P.M., Jacquet, M., Janssen, T., Jung, A.W., 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., Li, W., Lin, J., Lipka, K., List, B., List, J., 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., Müller, K., Nachman, B., Naumann, T., 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., Schnell, G., Schoeffel, L., Schöning, A., Sefkow, F., Shushkevich, S., Soloviev, Y., Sopicki, P., South, D., Specka, A., Steder, M., Stella, B., Straumann, U., Sun, C., Sykora, T., Thompson, P.D., Torales Acosta, F., Traynor, D., Tseepeldorj, B., Tu, Z., Tustin, G., Valkárová, A., Vallée, C., Van Mechelen, P., Wegener, D., Wünsch, E., Žáček, J., Zhang, J., Zhang, Z., Žlebčík, R., Zohrabyan, H., Zomer, F., 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., Cvach, J., Dainton, J.B., Daum, K., Deshpande, A., Diaconu, C., Drees, A., 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., Hessler, J., Hladký, J., Hoffmann, D., Horisberger, R., Hreus, T., Huber, F., Jacobs, P.M., Jacquet, M., Janssen, T., Jung, A.W., 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., Li, W., Lin, J., Lipka, K., List, B., List, J., 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., Müller, K., Nachman, B., Naumann, T., 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., Schnell, G., Schoeffel, L., Schöning, A., Sefkow, F., Shushkevich, S., Soloviev, Y., Sopicki, P., South, D., Specka, A., Steder, M., Stella, B., Straumann, U., Sun, C., Sykora, T., Thompson, P.D., Torales Acosta, F., Traynor, D., Tseepeldorj, B., Tu, Z., Tustin, G., Valkárová, A., Vallée, C., Van Mechelen, P., Wegener, D., Wünsch, E., Žáček, J., Zhang, J., Zhang, Z., Žlebčík, R., Zohrabyan, H., and Zomer, F.

Published
2023

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

Author

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., Drees, A., 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., Hessler, J., Hladký, J., Hoffmann, D., Horisberger, R., Hreus, T., Huber, F., Jacobs, P.M., Jacquet, M., Janssen, T., Jung, A.W., 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., Li, W., Lin, J., Lipka, K., List, B., List, J., 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., Schnell, G., 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., Acosta, F. Torales, Traynor, D., Tseepeldorj, B., Tu, Z., Tustin, G., Valkárová, A., Vallée, C., Van Mechelen, P., Wegener, D., Wünsch, E., Žáček, J., Zhang, J., Zhang, Z., Žlebčík, R., Zohrabyan, H., Zomer, F., Laboratoire Leprince-Ringuet (LLR), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Centre de Physique des Particules de Marseille (CPPM), Aix Marseille Université (AMU)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Département de Physique des Particules (ex SPP) (DPhP), Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire de Lyon (IPNL), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Annecy de Physique des Particules (LAPP), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), and H1

Subjects
particle, energy, neural network, hep-ex, momentum transfer, FOS: Physical sciences, electron p, interaction, GeV, High Energy Physics - Experiment, DESY HERA Stor, High Energy Physics - Experiment (hep-ex), machine learning, energy, high, nuclear physics, network, strong coupling, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], structure, hadron, higher-dimensional, Monte Carlo, transverse momentum, high, Particle Physics - Experiment, Berkeley Lab
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., 30 pages, 10 figures, 8 tables, corrected authorlist

Published
2023
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4. Measurement of nuclear transparency ratios for protons and neutrons

Author

Duer, M., primary, Hen, O., additional, Piasetzky, E., additional, Weinstein, L.B., additional, Schmidt, A., additional, Korover, I., additional, Cohen, E.O., additional, Hakobyan, H., additional, Adhikari, S., additional, Angelini, G., additional, Avakian, H., additional, Ayerbe Gayoso, C., additional, Barion, L., additional, Battaglieri, M., additional, Beck, A., additional, Bedlinskiy, I., additional, Biselli, A.S., additional, Boiarinov, S., additional, Briscoe, W.J., additional, Brooks, W., additional, Burkert, V.D., additional, Cao, F., additional, Carman, D.S., additional, Celentano, A., additional, Chatagnon, P., additional, Chetry, T., additional, Ciullo, G., additional, Cole, P.L., additional, Contalbrigo, M., additional, Cortes, O., additional, Crede, V., additional, Cruz Torres, R., additional, D'Angelo, A., additional, Dashyan, N., additional, De Vita, R., additional, De Sanctis, E., additional, Deur, A., additional, Diehl, S., additional, Djalali, C., additional, Dupre, R., additional, Duran, Burcu, additional, Egiyan, H., additional, Ehrhart, M., additional, El Alaoui, A., additional, El Fassi, L., additional, Eugenio, P., additional, Filippi, A., additional, Forest, T.A., additional, Gilfoyle, G.P., additional, Girod, F.X., additional, Golovatch, E., additional, Gothe, R.W., additional, Griffioen, K.A., additional, Guidal, M., additional, Guo, L., additional, Hafidi, K., additional, Hanretty, C., additional, Harrison, N., additional, Hattawy, M., additional, Hauenstein, F., additional, Hayward, T.B., additional, Heddle, D., additional, Holtrop, M., additional, Ilieva, Y., additional, Ireland, D.G., additional, Ishkhanov, B.S., additional, Isupov, E.L., additional, Jo, H.S., additional, Johnston, S., additional, Joo, K., additional, Joosten, S., additional, Keller, D., additional, Khachatryan, G., additional, Khachatryan, M., additional, Khanal, A., additional, Khandaker, M., additional, Kim, A., additional, Kim, W., additional, Klein, A., additional, Klein, F.J., additional, Kubarovsky, V., additional, Kuhn, S.E., additional, Kuleshov, S.V., additional, Lanza, L., additional, Laskaris, G., additional, Lenisa, P., additional, Livingston, K., additional, MacGregor, I.J.D., additional, Marchand, D., additional, McKinnon, B., additional, Mey-Tal Beck, S., additional, Mineeva, T., additional, Mirazita, M., additional, Mokeev, V., additional, Montgomery, R.A., additional, Movsisyan, A., additional, Munoz Camacho, C., additional, Mustapha, B., additional, Nadel-Turonski, P., additional, Niccolai, S., additional, Niculescu, G., additional, Osipenko, M., additional, Ostrovidov, A.I., additional, Paolone, M., additional, Pappalardo, L.L., additional, Paremuzyan, R., additional, Pasyuk, E., additional, Patsyuk, M., additional, Payette, D., additional, Price, J., additional, Pocanic, D., additional, Pogorelko, O., additional, Prok, Y., additional, Protopopescu, D., additional, Raue, B.A., additional, Ripani, M., additional, Riser, D., additional, Rizzo, A., additional, Rosner, G., additional, Rossi, P., additional, Sabatié, F., additional, Salgado, C., additional, Schmookler, B.A., additional, Schumacher, R.A., additional, Segarra, E.P., additional, Sharabian, Y.G., additional, Skorodumina, Iu., additional, Sokhan, D., additional, Soto, O., additional, Sparveris, N., additional, Stepanyan, S., additional, Strauch, S., additional, Taiuti, M., additional, Tan, J.A., additional, Ungaro, M., additional, Voskanyan, H., additional, Voutier, E., additional, Wang, R., additional, Wei, X., additional, Zachariou, N., additional, Zhang, J., additional, Zhao, Z.W., additional, and Zheng, X., additional

Published
2019
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5. Center of Mass Motion of Short-Range Correlated Nucleon Pairs studied via the $A(e,e′pp)$ Reaction

Author

Cohen, E.O., Hen, O., Piasetzky, E., Weinstein, L.B., Schmidt, A., Hakobyan, H., Adhikari, S., Akbar, Z., Amaryan, M.J., Avakian, H., Ball, J., Barion, L., Battaglieri, M., Beck, A., Bedlinskiy, I., Biselli, A.S., Boiarinov, S., Briscoe, W., Burkert, V.D., Cao, F., Carman, D.S., Celentano, A., Charles, G., Chatagnon, Pierre, Chetry, T., Ciullo, G., Clary, Brandon A., Contalbrigo, M., Crede, V., Cruz Torres, R., D'Angelo, A., Dashyan, N., De Vita, R., De Sanctis, E., Defurne, M., Deur, A., Diehl, S., Djalali, C., Duer, M., Dupre, R., Egiyan, H., Ehrhart, Mathieu, El Alaoui, A., El Fassi, L., Eugenio, P., Fedotov, G., Fersch, R., Filippi, A., Ghandilyan, Y., Giovanetti, K.L., Girod, F.X., Golovatch, E., Gothe, R.W., Griffioen, K.A., Hafidi, K., Harrison, N., Hauenstein, F., Heddle, D., Hicks, K., Holtrop, M., Ireland, D.G., Ishkhanov, B.S., Isupov, E.L., Jenkins, D., Jo, H.S., Johnston, S., Kabir, M.L., Keller, D., Khachatryan, G., Khachatryan, M., Khandaker, M., Kim, A., Kim, W., Klein, A., Klein, F.J., Korover, I., Kubarovsky, V., Kuhn, S.E., Lanza, L., Lenisa, P., Livingston, K., MacGregor, I .J .D., Marchand, D., Mckinnon, B., Mey-Tal Beck, S., Meyer, C.A., Mirazita, M., Mokeev, V., Montgomery, R.A., Movsisyan, A, Munoz Camacho, C., Mustapha, B., Nadel-Turonski, P., Niccolai, S., Niculescu, G., Osipenko, M., Ostrovidov, A.I., Paolone, M., Paremuzyan, R., Pasyuk, E., Pogorelko, O., Price, J.W., Prok, Y., Protopopescu, D., Ripani, M., Riser, D., Rizzo, A., Rosner, G., Rossi, P., Sabatié, F., Schmookler, B.A., Schumacher, R.A., Sharabian, Y.G., Sokhan, D., Sparveris, N., Stepanyan, S., Strauch, S., Taiuti, M., Tan, J.A., Ungaro, M., Voskanyan, H., Voutier, E., Wang, R., Watts, D.P., Wei, X., Wood, M.H., Zachariou, N., Zhang, J., Zheng, X., Zhao, Z.W., Institut de Recherches sur les lois Fondamentales de l'Univers (IRFU), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay, Institut de Physique Nucléaire d'Orsay (IPNO), Université Paris-Sud - Paris 11 (UP11)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Centre National de la Recherche Scientifique (CNRS), CLAS, and Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Sud - Paris 11 (UP11)

Subjects
Nuclear Theory (nucl-th), Nuclear Theory, [PHYS.NUCL]Physics [physics]/Nuclear Theory [nucl-th], FOS: Physical sciences, Nuclear Experiment (nucl-ex), [PHYS.NEXP]Physics [physics]/Nuclear Experiment [nucl-ex], Nuclear Experiment, Nuclear Physics
Abstract

Short-Range Correlated (SRC) nucleon pairs are a vital part of the nucleus, accounting for almost all nucleons with momentum greater than the Fermi momentum (kF). A fundamental characteristic of SRC pairs is having large relative momenta as compared to kF, and smaller center-of-mass (c.m.) which indicates a small separation distance between the nucleons in the pair. Determining the c.m. momentum distribution of SRC pairs is essential for understanding their formation process. We report here on the extraction of the c.m. motion of proton-proton (pp) SRC pairs in Carbon and, for the first time in heavier and ansymetric nuclei: aluminum, iron, and lead, from measurements of the A(e,e'pp) reaction. We find that the pair c.m. motion for these nuclei can be described by a three-dimensional Gaussian with a narrow width ranging from 140 to 170 MeV/c, approximately consistent with the sum of two mean-field nucleon momenta. Comparison with calculations appears to show that the SRC pairs are formed from mean-field nucleons in specific quantum states., Accepted to PRL. 7 pages, 3 figures

Published
2018
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