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15 results on '"Götzen, Klaus"'

2. Search for the Y(2175) in photoproduction at GlueX

Author

Götzen Klaus and Nerling Frank

Subjects
Physics, QC1-999
Abstract

Abstract. The Y(2175), recently renamed to ϕ(2170), is one of the rare exotic candidates connected to strangeonium as compared to the heavier charmonium-like and bottomonium-like exotic states. Originally observed in initial state radiation events by the BaBar experiment in 2006, it is suggested to be a strange partner state of the charmonium-like exotic vector state Y(4230) that was one of the first of the so-called XYZ states reported in the charmonium mass region. The Y(2175) has been seen in various experiments and decay channels,but it has not yet been searched for in a photo-production experiment. In this talk we report on a measurement of the production cross section of the reaction γ + p → ϕπ+ π− + p based on data recorded by the GlueX experiment in order to search for Y(2175) → ϕπ+π−.>

Published
2024
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3. Design Studies of the PWO Forward End-cap Calorimeter for PANDA

Author

Moeini, Hossein, Al-Turany, Mohammad, Babai, Mohammad, Biegun, Alexandra, Bondarenko, Olga, Gotzen, Klaus, Kavatsyuk, Myroslav, Lindemulder, Michel, Lohner, Herbert, Melnychuk, Dima, Messchendorp, Johan, Smit, Henk, Spataro, Stefano, and Veenstra, Rick

Subjects
Physics - Instrumentation and Detectors, High Energy Physics - Experiment
Abstract

The PANDA detection system at FAIR, Germany, is designed to study antiproton-proton annihilations, in order to investigate among others the realm of charm-meson states and glueballs, which has still much to reveal. The yet unknown properties of this field are to be unraveled through studying QCD phenomena in the non-perturbative regime. The multipurpose PANDA detector will be capable of tracking, calorimetry, and particle identification, and is foreseen to run at high luminosities providing average reaction rates up to 20 Million interactions/s. The envisaged physics program requires measurements of photons and charged particles with excellent energy, position, and time resolutions. The electromagnetic calorimeter (EMC) will serve as one of the basic components of the detector setup and comprises cooled Lead-Tungstate (PbWO4) crystals. This paper presents the mechanical design of the Forward End-cap calorimeter and analyses the response of this detector component in conjunction with the full EMC and the complete PANDA detector. The simulation studies are focused on the performance of the planned EMC with respect to the energy and spatial resolution of the reconstructed photons. Results of the Monte Carlo simulations, excluding very low-energy photons, have been validated by data obtained from a prototype calorimeter and shown to fulfil the requirements imposed by the PANDA physics program., Comment: 22 Pages, 24 Figures, 4 Tables

Published
2013
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4. Hyperon signatures in the PANDA experiment at FAIR

Author

Abazov, Viktor, Abramov, Victor, Achenbach, Patrick, Afedulidis, Orestis, Ahrens, Lennart, Akram, Adeel, Al-Turany, Mohammad, Albrecht, Malte, Alexeev, Gennady, Ali, Ahmed, Alicke, Anna, Amsler, Claude, Antokhin, Evgeny, Appagere, Gandharva, Augustin, Ingo, Azizi, Kazem, Balanutsa, Pavel, Balashoff, Alexander, Barnyakov, Alexander Yu., Barucca, Gianni, Belias, Anastasios, Beloborodov, Konstantin, Bergert, Roman, Bianconi, Andrea, Bleser, Sebastian, Blinov, Alexander E., Blinov, Vladimir E., Bloms, Johannes, Boca, Gianluigi, Bodenschatz, Simon, Boelger, Niels, Böhm, Merlin, Böhm, Ralph, Bökelmann, Stephan, Bölting, Michael, Bonaventura, Daniel, Boukharov, Alexander, Bracco, Gianangelo, Bragadireanu, Mario, Brand, Philipp, Brinkmann, Kai-Thomas, Brück, Lisa, Bukharova, Marina, Bukreeva, Sofia, Bumrungkoh, Denchay, Bussa, Maria Pia, Calen, Hans, Calvo, Daniela, Capozza, Luigi, Caselle, Michele, Cederwall, Bo, Chauhan, Vinee, Chernetsky, Viacheslav, Chilingaryan, Suren, Coen, Sebastian, Corell, Oliver, Crede, Volker, Dav`ı, Fabrizio, de Boer, Remco, De Remigis, Paolo, Demekhin, Alexey, Denig, Achim, Denizli, Haluk, Deppe, Harald, Derichs, Artur, Diehl, Stefan, Dippel, Lara, Dobbs, Sean, Dodokhov, Valery Kh., Dolgolenko, Anatoly, Domagala, Mariusz, Monasterio, Maria Doncel, Dormenev, Valery, Dosdall, Rene, Dritschler, Timo, Duda, Daniel, Düren, Michael, Dzhygadlo, Roman, Efremov, Alexander, Eick, Hanna, Er, Nuray, Erlen, Thorsten, Erokhin, Alexandr, Esmail, Waleed, Eugenio, Paul, Eyrich, Wolfgang, Falk, Aniko, Fedorets, Pavel, Fedotov, Gleb, Feldbauer, Florian, Ferapontov, Valeri, Filippi, Alessandra, Filo, Grzegorz, Finger Jr, Michael, Finger, Miroslav, Fink, Mario, Firlej, Miroslaw, Fiutowski, Tomasz, Flemming, Holger, Frech, Jens, Frenkel, Celina Marie, Fritsch, Miriam, Galoyan, Aida, Gandhi, Keval, Gerasimov, Alexander, Gerhardt, Andreas, Giebenhain, Kim Tabea, Glaab, Daniel, Glazier, Derek, Glennemeier-Marke, Simon, Goldenbaum, Frank, Golovanov, Georgy, Golubev, Alexander, Goncharenko, Yury, Götzen, Klaus, Gou, Boxing, Gumbert, Katja, Hagdorn, Rene, Hahn, Christopher, Hammann, Christian, Hartmann, Jan, Heine, Greta, Heinsius, Fritz-Herbert, Heinz, Andreas, Held, Thomas, Herold, Christoph, Hetz, Benjamin, Himmelreich, Mathilde, Hoek, Matthias, Hofmann, Jan, Holtmann, Tobias, Hölzken, Fabian, Huang, Guang Shun, Idzik, Marek, Ireland, David, Jary, Vladimir, Jiang, Peiyong, Jiang, Zhu, Johansson, Tord, Kalita, Kushal, Kalugin, Nikita, Kannika, Jakapat, Kantsyrev, Alexey, Karabowicz, Radoslaw, Käser, Alexander, Kazlou, Dzmitry, Kegel, Sophie, Keshk, Iman, Kesik, Grazina, Keskin, Umut, Ketzer, Bernhard, Khalid, Faiza, Khoukaz, Alfons, Klasen, Roman, Kliemt, Ralf, Kobdaj, Chinorat, Koch, Helmut, Koch, Stefan, Kohlen, Jonas, Kononov, Sergey, Kopf, Bertram, Kopmann, Andreas, Korchak, Oleksandr, Korcyl, Grzegorz, Korcyl, Krzysztof, Korzhik, Mikhail, Kosinski, Tymoteusz, Kozak, Natalia, Krauss, Steffen, Kravchenko, Evgeniy A., Kripko, Aron, Kristi, Nikolai, Kunze, Marcel, Kupsc, Andrzej, Kurilla, Udo, Küßner, Meike, Kutuzov, Sergey, Kuyanov, Ivan A., Kveton, Antonin, Ladygina, Elena, Lalik, Rafal, Lancioni, Giovanni, Lattery, Mark, Lauth, Werner, Lebiedowicz, Piotr, Lehmann, Albert, Lehmann, Dorothee, Lehmann, Inti, Leithoff, Hans Heinrich, Levin, Andrei, Li, Jinxin, Liang, Yutie, Limphirat, Ayut, Linzen, Lukas, Lisowski, Edward, Liu, Beijiang, Liu, Chunxiu, Liu, Dong, Liu, Zhenan, Loehner, Herbert, Lucherini, Vincenzo, Lühning, Jost, Luschevskaya, Elena, Lynen, Uli, Maas, Frank, Maldaner, Stephan, Malige, Akshay, Malyshev, Oleg, Manaenkov, Sergey, Manasatitpong, Keerati, Mannweiler, Christian, Marciniewski, Pawel, Marcisovsky, Michal, Marton, Johann, Maslova, Eseniya, Matusiak, Michal, Matveev, Vladimir A., Mazza, Giovanni, Melnychuk, Dmytro, Mengucci, Paolo, Merkel, Harald, Messchendorp, Johan, Micha lek, Mateusz, Miehling, Daniel, Miklukho, Oleg, Minaev, Nikolay, Missevitch, Oleg, Mochalov, Vasiliy V., Moiseev, Vyacheslav, Molenda, Aleksandra, Montalto, Luigi, Moron, Jakub, Morozov, Dmitry, Motzko, Christof, Müller, Ulrich, Müllers, Johannes, Nasawad, Thanachot, Natali, Pier Paolo, Nerling, Frank, Nogach, Larisa, Noll, Oliver, Novikov, Konstantin, Novy, Josef, Nowakowski, Krzysztof, Olgun, Asiye Tugba, Orfanitski, Sergey, Orsich, Pavel, Orth, Herbert, Panjushkin, Vsevolod, Pankonin, Sven, Panyuschkina, Alena, Paone, Nicola, Papenbrock, Michael, Pelizäus, Marc, Peng, Hai Ping, Perez-Andrade, Gabriela, Peter, Marvin, Peters, Klaus, Petersen, Jannik, Piskun, Alexey A., Pivovarov, Sergey, Pochodzalla, Josef, Pongampai, Surachai, Poznanski, Piotr, Prasuhn, Dieter, Prochazka, Ivan, Przygoda, Witold, Pyata, Evgeniy, Pysz, Krzysztof, lazek, Joanna P., Qi, Hang, Quin, Jiajia, Rai, Ajay Kumar, Rathod, Narendra, Reeh, Andreas, Regina, Jenny, Reher, Jan, Reicherz, Gerhard, Rieger, Jana, Rigato, Valentino, Rinaldi, Daniele, Ritman, James, Rocco, Elena, Piñeiro, David Rodríguez, Rosner, Christoph, Ryazantsev, Andrey, Ryzhikov, Sergey, Sachs, Matthias, Salisbury, Ben, Samartsev, Alexander, Scalise, Lorenzo, Schadmand, Susan, Schäfer, Wolfgang, Schepers, Georg, Schlimme, Soeren, Schmidt, Christian Joachim, Schmidt, Christoph, Schmidt, Mustafa, Schmitt, Lars, Schnier, Claudius, Schönning, Karin, Schubert, René, Schupp, Falk, Schwarz, Carsten, Schwiening, Joachim, Sefzick, Thomas, Seifen, Tobias, Seitz, Bjoern, Semenov, Pavel A., Seth, Kam, Sfienti, Concettina, Shein, Igor, Shen, Xiaoyan, Shimanski, Stepan, Simantathammakul, Tawanchat, Skachkova, Anna N., Slunecka, Miloslav, Smyrski, Jerzy, Snoeyink, Mark, Sobol, Bartosz, Spataro, Stefano, Stavinskiy, Alexey Valentinovich, Steinacher, Michael, Steinen, Marcell, Stepanov, Vladimir, Stockmanns, Tobias, Straube, Marcel, Strickert, Marc, Strokovsky, Evgeny A., Sun, Shengsen, Sun, Yan Kun, Suzuki, Ken, Swientek, Krzysztof, Szczurek, Antoni, Takatsch, Chris N., Tarasiuk, Jerzy, Täschner, Alexander, Tavukoglu, Zeynep, Tegner, Per-Erik, Terlecki, Przemyslaw, Thoma, Ulrike, Tikhonov, Yury, Tokmenin, Valery, Tomasek, Lukas, Tomasi-Gustafsson, Egle, Traxler, Michael, Triffterer, Tobias, Tröll, Nils, Uzhinsky, Vladimir, Varentsov, Victor, Vasiliev, Alexander N., Veretennikov, Denis, Verkheev, Alexander, Vestrick, Sophia, Virius, Miroslav, Vishnevsky, Evgeny, Vodopianov, Alexander, Volf, Michal, Voss, Bernd, Wang, Fei, Wasem, Thomas, Watts, Daniel, Weidner, Frederik, Welde, Leonard, Wendlandt, Katharina, Wenzel, Christopher, Wettig, Vincent, Wieczorek, Peter, Wiedner, Ulrich, Wintz, Peter, Wolf, Yannic, Wolff, Sahra, Wolke, Magnus, Wongprachanukul, Narupon, Wronka, Slawomir, Xiao, Ting, Xu, Huagen, Yakutin, Alexander, Yerlikaya, Seda, Yilmaz, Ali, Yu, Chunxu, Zakrzewski, Tomasz, Zaunick, Hans-Georg, Zhang, Xiao, Zhao, Guang, Zhao, Jingzhou, Zhdanov, Andrey, Zheng, Bo, Zhou, Xiao Rong, Zhu, Wenjing, Zhuravlev, Nikolai I., Zimmermann, Iris, Ziyu, Zhang, and Zwieglinski, Boguslaw

Subjects
High Energy Physics - Experiment (hep-ex), hep-ex, FOS: Physical sciences, Nuclear Physics - Experiment, Nuclear Experiment (nucl-ex), nucl-ex, Nuclear Experiment, Particle Physics - Experiment, High Energy Physics - Experiment
Abstract

We present a detailed simulation study of the signatures from the sequential decays of the triple-strange pbar p -> {\Omega}+{\Omega}- -> K+{\Lambda}barK- {\Lambda} -> K+pbar{\pi}+K-p{\pi}- process in the PANDA central tracking system with focus on hit patterns and precise time measurement. We present a systematic approach for studying physics channels at the detector level and develop input criteria for tracking algorithms and trigger lines. Finally, we study the beam momentum dependence on the reconstruction efficiency for the PANDA detector.

Published
2023
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5. Cross section measurements of the e+e− → D*+D*− and e+e− → D*+D− processes at center-of-mass energies from 4.085 to 4.600 GeV

Author

Ablikim, Medina, Achasov, Mikhail N., Adlarson, Patrik, Albrecht, Malte, Aliberti, Riccardo, Amoroso, Antonio, An, M. R., An, Qi, Bai, X. H., Bai, Yu, Bakina, Olga, Baldini Ferroli, Rinaldo, Balossino, Ilaria, Ban, Yong, Batozskaya, V., Becker, D., Begzsuren, Khurelbaatar, Berger, Niklaus, Bertani, Monica, Bettoni, Diego, Bianchi, Fabrizio, Bloms, Johannes, Bortone, Alberto, Boyko, Igor R., Briere, Roy A., Brüggemann, Anja, Cai, Hao, Cai, Xiao, Calcaterra, Alessandro, Cao, G. F., Cao, N., Çetin, Serkant Ali, Chang, J. F., Chang, W. L., Chelkov, G., Chen, C., Chen, G., Chen, H. S., Chen, M. L., Chen, S. J., Chen, T., Chen, X. R., Chen, X. T., Chen, Y. B., Chen, Z. J., Cheng, W. S., Chu, X., Cibinetto, Gianluigi, Cossio, Fabio, Cui, J. J., Dai, H. L., Dai, J. P., Dbeyssi, A., de Boer, R. E., Dedovich, Dmitri V., Deng, Z. Y., Denig, Achim, Denysenko, Igor, Destefanis, Marco Giovanni Maria, De Mori, Francesca, Ding, Yanchun, Dong, J., Dong, L. Y., Dong, M. Y., Dong, X., Du, S. X., Egorov, P., Fan, Y. L., Fang, J., Fang, S. S., Fang, W. X., Fang, Y., Farinelli, R., Fava, Luciano, Feldbauer, Florian, Felici, Giulietto, Feng, C. Q., Feng, J. H., Fischer, K., Fritsch, Miriam, Fritzsch, C. F., Fu, C. D., Gao, H., Gao, Y. N., Gao, Yang, Garbolino, Sara, Garzia, Isabella, Ge, P. T., Geng, C., Gersabeck, Evelina, Gilman, A., Götzen, Klaus, Gong, L., Gong, W. X., Gradl, Wolfgang, Greco, M., Gu, M. H., Guan, C. Y., Guo, A. Q., Guo, L. B., Guo, R. P., Guo, Y. P., Guskov, A., Han, T. T., Han, W. Y., Hao, X. Q., Harris, Frederick Allan, He, K. K., He, K. L., Heinsius, Fritz-Herbert, Heinz, C. H., Heng, Y. K., Herold, Christoph, Himmelreich, Mathilde, Holtmann, Tobias, Hou, G. Y., Hou, Y. R., Hou, Z. L., Hu, H. M., Hu, J. F., Hu, T., Hu, Y., Huang, G. S., Huang, K. X., Huang, L. Q., Huang, X. T., Huang, Y. P., Huang, Z., Hussain, Tahir, Hüsken, Nils, Imoehl, William, Irshad, M., Jackson, J., Jaeger, S., Janchiv, S., Ji, Q., Ji, Q. P., Ji, X. B., Ji, X. L., Ji, Y. Y., Jia, Z. K., Jiang, H. B., Jiang, S. S., Jiang, X. S., Jiang, Y., Jiao, J. B., Jiao, Z., Jin, S., Jin, Y., Jing, M. Q., Johansson, Tord, Kalantar-Nayestanaki, Nasser, Kang, X. S., Kappert, R., Kavatsyuk, Myroslav O., Ke, B. C., Keshk, I. K., Khoukaz, Alfons, Kiese, P., Kiuchi, R., Kliemt, Ralf, Koch, L., Kolcu, O. B., Kopf, Bertram, Kuemmel, M., Kuessner, M., Kupsc, Andrzej, Kühn, Wolfgang, Lane, J. J., Lange, Jens Sören, Larin, Paul, Lavania, A., Lavezzi, Lia, Lei, Z. H., Leithoff, Hans Heinrich, Lellmann, Max, Lenz, T., Li, C., Li, C. H., Li, Cheng, Li, D. M., Li, F., Li, G., Li, H., Li, H. B., Li, H. J., Li, H. N., Li, J. Q., Li, J. S., Li, J. W., Li, Ke, Li, L. J., Li, L. K., Li, Lei, Li, M. H., Li, P. R., Li, S. X., Li, S. Y., Li, T., Li, W. D., Li, W. G., Li, X. H., Li, Xing Long, Li, Xiaoyu, Li, Z. Y., Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, L. Z., Libby, J., Limphirat, A., Lin, C. X., Lin, D. X., Lin, T., Liu, B. J., Liu, C. X., Liu, D., Liu, F. H., Liu, Fang, Liu, Feng, Liu, G. M., Liu, H., Liu, H. M., Liu, Huanhuan, Liu, Huihui, Liu, J. B., Liu, J. L., Liu, J. Y., Liu, K., Liu, K. Y., Liu, Ke, Liu, L., Liu, M. H., Liu, P. L., Liu, Q., Liu, S. B., Liu, T., Liu, W. K., Liu, W. M., Liu, X., Liu, Y., Liu, Y. B., Liu, Z. A., Liu, Z. Q., Lou, X. C., Lu, F. X., Lu, H. J., Lu, J. G., Lu, X. L., Lu, Y., Lu, Y. P., Lu, Z. H., Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lyu, X. R., Lyu, Y. F., Ma, F. C., Ma, H. L., Ma, L. L., Ma, M. M., Ma, Q. M., Ma, R. Q., Ma, R. T., Ma, X. Y., Ma, Y., Maas, Frank E., Maggiora, Marco, Maldaner, Stephan, Malde, S., Malik, Qadeer Afzal, Mangoni, Alessio, Mao, Y. J., Mao, Z. P., Marcello, S., Meng, Z. X., Messchendorp, Johannes Gerhardus, Mezzadri, Giulio, Miao, H., Min, T. J., Mitchell, Ryan Edward, Mo, X. H., Muchnoi, Nikolai Yu., Muramatsu, Hajime, Nefedov, Y., Nerling, Frank, Nikolaev, Ivan Borisovich, Ning, Z., Nisar, Shabana, Niu, Y., Olsen, Stephen L., Ouyang, Q., Pacetti, Simone, Pan, X., Pan, Y., Pathak, A., Pelizäus, Marc, Peng, H. P., Peters, Klaus, Pettersson, J., Ping, J. L., Ping, R. G., Plura, S., Pogodin, S., Poling, Ronald, Prasad, Vindhyawasini, Qi, F. Z., Qi, H., Qi, H. R., Qi, M., Qi, T. Y., Qian, S., Qian, W. B., Qian, Z., Qiao, C. F., Qin, J. J., Qin, L. Q., Qin, X. P., Qin, X. S., Qin, Z. H., Qiu, J. F., Qu, S. Q., Rashid, K. H., Redmer, C. F., Ren, K. J., Rivetti, Angelo, Rodin, Viktor, Da Rocha Rolo, Manuel Dionisio, Rong, Gang, Rosner, Christoph, Ruan, S. N., Sang, H. S., Sarantsev, Andrei V., Schelhaas, Yasemin, Schnier, Claudius, Schoenning, Karin, Scodeggio, Marco, Shan, K. Y., Shan, W., Shan, X. Y., Shangguan, J. F., Shao, L. G., Shao, M., Shen, C. P., Shen, H. F., Shen, X. Y., Shi, B.-A., Shi, H. C., Shi, J. Y., Shi, R. S., Shi, X., D Shi, X., Song, J. J., Song, W. M., Song, Y. X., Sosio, Stefano, Spataro, Stefano, Stieler, F., Su, K. X., Su, P. P., Su, Y.-J., Sun, G. X., Sun, H., Sun, H. K., Sun, J. F., Sun, L., Sun, S. S., Sun, T., Sun, W. Y., Sun, X, Sun, Y. J., Sun, Y. Z., Sun, Z. T., Tan, Y. H., Tan, Y. X., Tang, C. J., Tang, G. Y., Tang, J., Y Tao, L., Tao, Q. T., Teng, J. X., Thoren, Viktor, Tian, W. H., Tian, Y., Uman, I., Wang, B., Wang, B. L., Wang, D. Y., Wang, F., Wang, H. J., Wang, H. P., Wang, K., Wang, L. L., Wang, M., Wang, M. Z., Wang, Meng, Wang, S., Wang, T., Wang, T. J., Wang, W., Wang, W. H., Wang, W. P., Wang, X., Wang, X. F., Wang, X. L., Wang, Y. D., Wang, Y. F., Wang, Y. H., Wang, Y. Q., Wang, Ying, Wang, Z., Wang, Z. Y., Wang, Ziyi, Wei, D. H., Weidner, Frederik, Wen, S. P., White, D. J., Wiedner, Ulrich, Wilkinson, Guy, Wolke, M., Wollenberg, Leonard, Wu, J. F., Wu, L. H., Wu, L. J., Wu, X., Wu, X. H., Wu, Y., Wu, Z., Xia, L., Xiang, T., Xiao, D., Xiao, H., Xiao, S. Y., Xiao, Y. L., Xiao, Z. J., Xie, X. H., Xie, Y., Xie, Y. G., Xie, Y. H., Xie, Z. P., Xing, T. Y., Xu, C. F., Xu, C. J., Xu, G. F., Xu, Q. J., Xu, S. Y., Xu, X. P., Xu, Y. C., Yan, F., Yan, L., Yan, W. B., Yan, W. C., Yang, H. J., Yang, H. L., Yang, H. X., Yang, L., Yang, S. L., Yang, Tao, Yang, Y. X., Yang, Yifan, Ye, M., Ye, M. H., Yin, J. H., You, Z. Y., Yu, B. X., Yu, C. X., Yu, G., Yu, T., Yuan, C. Z., Yuan, L., Yuan, S. C., Yuan, X. Q., Yuan, Y., Yuan, Z. Y., Yue, C. X., Zafar, A. A., Zeng, F. R., Zeng Zeng, X., Zeng, Y., Zhan, Y. H., Zhang, A. Q., Zhang, B. L., Zhang, B. X., Zhang, D. H., Zhang, G. Y., Zhang, Haitao, Zhang, H. H., Zhang, H. Y., Zhang, J. L., Zhang, J. Q., Zhang, J. W., Zhang, J. X., Zhang, J. Y., Zhang, J. Z., Zhang, Jianyu, Zhang, Jiawei, Zhang, L. M., Zhang, L. Q., Zhang, Lei, Zhang, P., Zhang, Q. Y., Zhang, Shulei, Zhang, X. D., Zhang, X. M., Zhang, X. Y., Zhang, Y., Zhang, Y. T., Zhang, Y. H., Zhang, Yan, Zhang, Yao, Zhang, Z. H., Zhang, Z. Y., Zhao, G., Zhao, J., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, Y. B., Zhao, Y. X., Zhao, Z. G., Zhemchugov, Alexey, Zheng, B., Zheng, J. P., Zheng, Y. H., Zhong, B., Zhong, C., Zhong, X., Zhou, H., Zhou, L. P., Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhou, Y. Z., Zhu, Jianhui, Zhu, K., Zhu, K. J., Zhu, L. X., Zhu, S. H., Zhu, T. J., Zhu, W. J., Zhu, Y. C., Zhu, Z. A., Zou, B. S., Zou, J. H., Ablikim, Medina, Achasov, Mikhail N., Adlarson, Patrik, Albrecht, Malte, Aliberti, Riccardo, Amoroso, Antonio, An, M. R., An, Qi, Bai, X. H., Bai, Yu, Bakina, Olga, Baldini Ferroli, Rinaldo, Balossino, Ilaria, Ban, Yong, Batozskaya, V., Becker, D., Begzsuren, Khurelbaatar, Berger, Niklaus, Bertani, Monica, Bettoni, Diego, Bianchi, Fabrizio, Bloms, Johannes, Bortone, Alberto, Boyko, Igor R., Briere, Roy A., Brüggemann, Anja, Cai, Hao, Cai, Xiao, Calcaterra, Alessandro, Cao, G. F., Cao, N., Çetin, Serkant Ali, Chang, J. F., Chang, W. L., Chelkov, G., Chen, C., Chen, G., Chen, H. S., Chen, M. L., Chen, S. J., Chen, T., Chen, X. R., Chen, X. T., Chen, Y. B., Chen, Z. J., Cheng, W. S., Chu, X., Cibinetto, Gianluigi, Cossio, Fabio, Cui, J. J., Dai, H. L., Dai, J. P., Dbeyssi, A., de Boer, R. E., Dedovich, Dmitri V., Deng, Z. Y., Denig, Achim, Denysenko, Igor, Destefanis, Marco Giovanni Maria, De Mori, Francesca, Ding, Yanchun, Dong, J., Dong, L. Y., Dong, M. Y., Dong, X., Du, S. X., Egorov, P., Fan, Y. L., Fang, J., Fang, S. S., Fang, W. X., Fang, Y., Farinelli, R., Fava, Luciano, Feldbauer, Florian, Felici, Giulietto, Feng, C. Q., Feng, J. H., Fischer, K., Fritsch, Miriam, Fritzsch, C. F., Fu, C. D., Gao, H., Gao, Y. N., Gao, Yang, Garbolino, Sara, Garzia, Isabella, Ge, P. T., Geng, C., Gersabeck, Evelina, Gilman, A., Götzen, Klaus, Gong, L., Gong, W. X., Gradl, Wolfgang, Greco, M., Gu, M. H., Guan, C. Y., Guo, A. Q., Guo, L. B., Guo, R. P., Guo, Y. P., Guskov, A., Han, T. T., Han, W. Y., Hao, X. Q., Harris, Frederick Allan, He, K. K., He, K. 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Abstract

The Born cross sections of the e+e− → D*+D*− and e+e− → D*+D− processes are measured using e+e− collision data collected with the BESIII experiment at center-of-mass energies from 4.085 to 4.600 GeV, corresponding to an integrated luminosity of 15.7 fb−1. The results are consistent with and more precise than the previous measurements by the Belle, Babar and CLEO collaborations. The measurements are essential for understanding the nature of vector charmonium and charmonium-like states.

Published
2022

6. Deep Machine Learning for the PANDA Software Trigger

Author

Jiang, Peiyong, Götzen, Klaus, Kliemt, Ralf, Nerling, Frank, and Peters, Klaus

Subjects
High Energy Physics - Experiment (hep-ex), Physics - Instrumentation and Detectors, FOS: Physical sciences, Instrumentation and Detectors (physics.ins-det), Nuclear Experiment (nucl-ex), Nuclear Experiment, High Energy Physics - Experiment
Abstract

Deep machine learning methods have been studied for the software trigger of the future PANDA experiment at FAIR, using Monte Carlo simulated data from the GEANT-based detector simulation framework PandaRoot. Ten physics channels that cover the main physics topics, including electromagnetic, exotic, charmonium, open charm, and baryonic reaction channels, have been investigated at four different anti-proton beam momenta. Binary and multi-class classification together with seven different network architectures have been studied. Finally a residual convolutional neural network with four residual blocks in a binary classification scheme has been chosen due to its extendability, performance and stability. The presented study represents a feasibility study of a completely software-based trigger system. Compared to a conventional selection method, the deep machine learning approach achieved a significant efficiency gain of up to 200\%, while keeping the background reduction factor at the required level of 1/1000. Furthermore, it is shown that the use of additional input variables can improve the data quality for subsequent analysis. This study shows that the PANDA software trigger can benefit greatly from the deep machine learning methods., Comment: 13 pages, 9 figures, submitted for publication in EPJ-C

Published
2022
Full Text
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7. Development of a New Clusterization Method for the GEM-TPC Detector

Author

Luoma, Minna, Blatz, Tobias, Chokheli, Davit, Flemming, Holger, Garcia, Francisco, Grahn, Tuomas, Götzen, Klaus, Jokinen, Ari, Karagiannis, Christos, Kurz, Nikolaus, Löchner, Sven, Nociforo, Chiara, Rinta-Antila, Sami, Schmidt, Christian, Simon, Haik, Turpeinen, Raimo, Voss, Bernd, Wieczorek, Peter, Winkler, Martin, Äystö, Juha, Zimmermann, Frank, Tanaka, Hitoshi, Sudmuang, Porntip, Klysubun, Prapong, Sunwong, Prapaiwan, Chanwattana, Thakonwat, Petit-Jean-Genaz, Christine, Schaa, Volker R.W., and Helsinki Institute of Physics

Subjects
electron, detector, experiment, Physics::Instrumentation and Detectors, electronics, Physics::Accelerator Physics, Nuclear Experiment, 114 Physical sciences, Accelerator Physics, MC6: Beam Instrumentation, Controls, Feedback and Operational Aspects, ECR
Abstract

The Facility for Antiproton and Ion Research FAIR, in Darmstadt Germany, will be one of the largest accelerator laboratories worldwide. The Superconducting FRagment Separator (Super-FRS)* is one of its main components. The Super-FRS can produce, separate and deliver high-energy radioactive beams with intensities up to 1e11 ions/s, covering projectiles from protons up to uranium and it can be used as an independent experimental device. The Gas Electron Multiplier-based Time Projection Chambers (GEM-TPC) in twin configuration is a newly developed beam tracking detector capable of providing spatial resolution of less than 1 mm with a tracking efficiency close to 100% at 1 MHz counting rate. The GEM-TPC (HGB4) was tested at the FRagment Separator (FRS), with 238U beam at 850 MeV/u. A new clusterization method was developed, for the first time and used for an analysis. This method allowed to access to waveforms of each strip signal within a single trigger in an event-by-event basis. The procedures involved in this method will be shown in details., Proceedings of the 13th International Particle Accelerator Conference, IPAC2022, Bangkok, Thailand

Published
2022

8. Measurement of proton electromagnetic form factors in the time-like region using initial state radiation at BESIII

Author

Ablikim, Medina, Achasov, Mikhail N., Adlarson, Patrik, Ahmed, Samer, Albrecht, Malte, Aliberti, Riccardo, Amoroso, Antonio, An, M.R., An, Qi, Bai, X.H., Bai, Yu, Bakina, Olga, Baldini Ferroli, Rinaldo, Balossino, Ilaria, Ban, Yong, Begzsuren, Khurelbaatar, Berger, Niklaus, Bertani, Monica, Bettoni, Diego, Bianchi, Fabrizio, Bloms, Johannes, Bortone, Alberto, Boyko, Igor R., Briere, Roy A., Cai, Hao, Cai, Xiao, Calcaterra, Alessandro, Cao, G.F., Cao, N., Çetin, Serkant Ali, Chang, Jinfan, Chang, W.L., Chelkov, Gueorgui A., Chen, D.Y., Chen, G., Chen, Hesheng, Chen, M.L., Chen, S.J., Chen, X.R., Chen, Yuanbo, Chen, Z.J., Cheng, W.S., Cibinetto, Gianluigi, Cossio, Fabio, Cui, X.F., Dai, Hongliang, Dai, Xinchen, Dbeyssi, Alaa, Boer, Remco E. de, Dedovich, Dmitri V., Deng, Ziyan, Denig, Achim, Denysenko, Igor, Destefanis, Marco Giovanni Maria, De Mori, Francesca, Ding, Yanchun, Dong, C., Dong, J., Dong, Liaoyuan, Dong, Mingyi, Dong, X., Du, Shuxian, Fan, Y.L., Fang, J., Fang, Shuangshi, Fang, Y., Farinelli, Riccardo, Fava, Luciano, Feldbauer, Florian, Felici, Giulietto, Feng, C.Q., Feng, J.H., Fritsch, Miriam, Fu, Chengdong, Gao, Y., Gao, Y.G., Garzia, Isabella, Ge, P.T., Geng, C., Gersabeck, Evelina, Gilman, A., Götzen, Klaus, Gong, L., Gong, Wenxuan, Gradl, Wolfgang, Greco, M., Gu, L.M., Gu, Minhao, Gu, S., Gu, Y.T., Guan, C.Y., Guo, Aiqiang, Guo, L.B., Guo, R.P., Guo, Yuping, Guskov, Alexey, Han, T.T., Han, W.Y., Hao, Xiqing, Harris, Frederick Allan, Hüsken, Nils, He, K.L., Heinsius, Fritz-Herbert, Heinz, C.H., Held, T., Heng, Yuekun, Herold, Christoph, Himmelreich, Mathilde, Holtmann, Tobias, Hou, G.Y., Hou, Y.R., Hou, Zhilong, Hu, Haiming, Hu, J.F., Hu, T., Hu, Y., Huang, G.S., Huang, L.Q., Huang, Xingtao, Huang, Y.P., Huang, Z., Hussain, Tahir, Ikegami Andersson, Walter, Imoehl, William, Irshad, M., Jaeger, S., Janchiv, S., Ji, Quan, Ji, Qingping, Ji, X.B., Ji, X.L., Ji, Y.Y., Jiang, H.B., Jiang, Xiaoshan, Jiao, J.B., Jiao, Z., Jin, Shan, Jin, Y., Jing, M.Q., Johansson, Tord, Kalantar-Nayestanaki, Nasser, Kang, X. 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P., Peters, Klaus, Pettersson, J., Ping, J.L., Ping, R.G., Poling, Ronald, Prasad, Vindhyawasini, Qi, H., Qi, H.R., Qi, K.H., Qi, Ming, Qi, T.Y., Qian, S., Qian, W.B., Qian, Z., Qiao, Congfeng, Qin, L.Q., Qin, X.P., Qin, X.S., Qin, Zhonghua, Qiu, Jinfa, Qu, S.Q., Rashid, K.H., Ravindran, Krishnakumar, Redmer, Christoph Florian, Rivetti, Angelo, Rodin, Viktor, Da Rocha Rolo, Manuel Dionisio, Rong, Gang, Rosner, Christoph, Rump, Marcel Andre, Sang, H.S., Sarantsev, Andrei V., Schelhaas, Yasemin, Schnier, Claudius, Schönning, Karin, Scodeggio, Marco, Shan, D.C., Shan, Wei, Shan, Xinyu, Shangguan, J.F., Shao, M., Shen, C.P., Shen, H.F., Shen, P.X., Shen, X.Y., Shi, H.C., Shi, R.S., Shi, X., Shi, X.D., Song, J.J., Song, W.M., Song, Y.X., Sosio, Stefano, Spataro, Stefano, Su, K.X., Su, P.P., Sui, F.F., Sun, Gongxing, Sun, H.K., Sun, J.F., Sun, L., Sun, S.S., Sun, T., Sun, W.Y., Sun, X., Sun, Y.J., Sun, Y.K., Sun, Y.Z., Sun, Z.T., Tan, Y.H., Tan, Y.X., Tang, C.J., Tang, G.Y., Tang, J., Teng, J.X., Thoren, Viktor, Tian, W.H., Uman, Ismail, Wang, B., Wang, C.W., Wang, D.Y., Wang, H.J., Wang, H.P., Wang, K., Wang, L.L., Wang, M., Wang, M.Z., Wang, Meng, Wang, W., Wang, W.H., Wang, W.P., Wang, X., Wang, X.F., Wang, X.L., Wang, Y., Wang, Y.D., Wang, Y.F., Wang, Y.Q., Wang, Y.Y., Wang, Z., Wang, Zongyuan, Wang, Ziyi, Wei, D.H., Weidenkaff, Peter, Weidner, Frederik, Wen, Shuopin, White, D.J., Wiedner, Ulrich, Wilkinson, Guy, Wolke, Magnus, Wollenberg, Leonard, Wu, J.F., Wu, L.H., Wu, L.J., Wu, X., Wu, Z., Xia, Lei, Xiao, H., Xiao, S.Y., Xiao, Zhenjun, Xie, X.H., Xie, Y.G., Xie, Y.H., Xing, T.Y., Xu, Guofa, Xu, Q.J., Xu, W., Xu, Xinping, Xu, Y.C., Yan, F., Yan, L., Yan, W.B., Yan, W.C., Yan, Xu, Yang, H.J., Yang, Hongxun, Yang, L., Yang, S.L., Yang, Yongxu, Yang, Yifan, Yang, Zhi, Ye, M., Ye, Minghan, Yin, J.H., You, Z.Y., Yu, Boxiang, Yu, C.X., Yu, G., Yu, J.S., Yu, T., Yuan, Chang-Zheng, Yuan, L., Yuan, X.Q., Yuan, Y., Yuan, Z.Y., Yue, C.X., Yüncü, Alperen, Zafar, A.A., Zeng, X., Zeng, Y., Zhang, A. Q., Zhang, B. X., Zhang, Guangyi, Zhang, Haitao, Zhang, H.H., Zhang, Hongyu, Zhang, J.J., Zhang, J.L., Zhang, J.Q., Zhang, J.W., Zhang, Jianyong, Zhang, J.Z., Zhang, Jianyu, Zhang, Jiawei, Zhang, L.Q., Zhang, Lei, Zhang, S., Zhang, S.F., Zhang, Shulei, Zhang, X.D., Zhang, X.Y., Zhang, Y., Zhang, Y.H., Zhang, Y.T., Zhang, Yan, Zhang, Yao, Zhang, Yi, Zhang, Z.H., Zhang, Z.Y., Zhao, G., Zhao, J., Zhao, J.Y., Zhao, J.Z., Zhao, Lei, Zhao, Ling, Zhao, Ming-Gang, Zhao, Q., Zhao, Shujun, Zhao, Yubin, Zhao, Y.X., Zhao, Zhengguo, Zhemchugov, Alexey, Zheng, B., Zheng, Jianping, Zheng, Y., Zheng, Y.H., Zhong, B., Zhong, C., Zhou, L. P., Zhou, Q., Zhou, X., Zhou, X.K., Zhou, X.R., Zhu, A.N., Zhu, Jianhui, Zhu, K., Zhu, Kejun, Zhu, S.H., Zhu, T.J., Zhu, W.J., Zhu, Y.C., Zhu, Zian, Zou, B.S., Zou, Jiaheng, Ablikim, Medina, Achasov, Mikhail N., Adlarson, Patrik, Ahmed, Samer, Albrecht, Malte, Aliberti, Riccardo, Amoroso, Antonio, An, M.R., An, Qi, Bai, X.H., Bai, Yu, Bakina, Olga, Baldini Ferroli, Rinaldo, Balossino, Ilaria, Ban, Yong, Begzsuren, Khurelbaatar, Berger, Niklaus, Bertani, Monica, Bettoni, Diego, Bianchi, Fabrizio, Bloms, Johannes, Bortone, Alberto, Boyko, Igor R., Briere, Roy A., Cai, Hao, Cai, Xiao, Calcaterra, Alessandro, Cao, G.F., Cao, N., Çetin, Serkant Ali, Chang, Jinfan, Chang, W.L., Chelkov, Gueorgui A., Chen, D.Y., Chen, G., Chen, Hesheng, Chen, M.L., Chen, S.J., Chen, X.R., Chen, Yuanbo, Chen, Z.J., Cheng, W.S., Cibinetto, Gianluigi, Cossio, Fabio, Cui, X.F., Dai, Hongliang, Dai, Xinchen, Dbeyssi, Alaa, Boer, Remco E. de, Dedovich, Dmitri V., Deng, Ziyan, Denig, Achim, Denysenko, Igor, Destefanis, Marco Giovanni Maria, De Mori, Francesca, Ding, Yanchun, Dong, C., Dong, J., Dong, Liaoyuan, Dong, Mingyi, Dong, X., Du, Shuxian, Fan, Y.L., Fang, J., Fang, Shuangshi, Fang, Y., Farinelli, Riccardo, Fava, Luciano, Feldbauer, Florian, Felici, Giulietto, Feng, C.Q., Feng, J.H., Fritsch, Miriam, Fu, Chengdong, Gao, Y., Gao, Y.G., Garzia, Isabella, Ge, P.T., Geng, C., Gersabeck, Evelina, Gilman, A., Götzen, Klaus, Gong, L., Gong, Wenxuan, Gradl, Wolfgang, Greco, M., Gu, L.M., Gu, Minhao, Gu, S., Gu, Y.T., Guan, C.Y., Guo, Aiqiang, Guo, L.B., Guo, R.P., Guo, Yuping, Guskov, Alexey, Han, T.T., Han, W.Y., Hao, Xiqing, Harris, Frederick Allan, Hüsken, Nils, He, K.L., Heinsius, Fritz-Herbert, Heinz, C.H., Held, T., Heng, Yuekun, Herold, Christoph, Himmelreich, Mathilde, Holtmann, Tobias, Hou, G.Y., Hou, Y.R., Hou, Zhilong, Hu, Haiming, Hu, J.F., Hu, T., Hu, Y., Huang, G.S., Huang, L.Q., Huang, Xingtao, Huang, Y.P., Huang, Z., Hussain, Tahir, Ikegami Andersson, Walter, Imoehl, William, Irshad, M., Jaeger, S., Janchiv, S., Ji, Quan, Ji, Qingping, Ji, X.B., Ji, X.L., Ji, Y.Y., Jiang, H.B., Jiang, Xiaoshan, Jiao, J.B., Jiao, Z., Jin, Shan, Jin, Y., Jing, M.Q., Johansson, Tord, Kalantar-Nayestanaki, Nasser, Kang, X. S., Kappert, Rosa, Kavatsyuk, Myroslav O., Ke, B.C., Keshk, I.K., Khoukaz, Alfons, Kiese, P., Kiuchi, R., Kliemt, Ralf, Koch, L., Kolcu, Onur Bugra, Kopf, Bertram, Kuemmel, M., Küßner, Meike, Kupsc, Andrzej, Kurth, Matthew Glenn, Kühn, Wolfgang, Lane, John Jake, Lange, Jens Sören, Larin, Paul, Lavania, Anita, Lavezzi, Lia, Lei, Z.H., Leithoff, Hans Heinrich, Lellmann, Max, Lenz, Thomas, Li, C., Li, C.H., Li, Cheng, Li, D.M., Li, F., Li, G., Li, H., Li, Haibo, Li, H.J., Li, J.L., Li, J.Q., Li, J.S., Li, Ke, Li, L.K., Li, Lei, Li, P.R., Li, S.Y., Li, Weidong, Li, Weiguo, Li, X.H., Li, Xing Long, Li, Xiaoyu, Li, Z.Y., Liang, H., Liang, Y.F., Liang, Y.T., Liao, G.R., Liao, L.Z., Libby, J., Lin, C.X., Lin, D.X., Liu, B.J., Liu, C.X., Liu, D., Liu, Fu-Hu, Liu, Fang, Liu, Feng, Liu, H.B., Liu, H.M., Liu, Huanhuan, Liu, Huihui, Liu, J.B., Liu, J.L., Liu, J.Y., Liu, K., Liu, K.Y., Liu, L., Liu, M.H., Liu, P.L., Liu, Q., Liu, S.B., Liu, Shuai, Liu, T., Liu, W.M., Liu, X., Liu, Y., Liu, Y.B., Liu, Zhen-An, Liu, Z.Q., Lou, Xinchou, Lu, F.X., Lu, H.J., Lu, J.D., Lu, Junguang, Lu, X.L., Lu, Y., Lu, Yunpeng, Luo, Chenglin, Luo, M.X., Luo, P.W., Luo, Tao, Luo, X.L., Lusso, S., Lyu, Xiao-Rui, Ma, Fengcai, Ma, Hailong, Ma, Lianliang, Ma, M.M., Ma, Qiumei, Ma, R.Q., Ma, R.T., Ma, X.X., Ma, Xiaoyan, Maas, Frank E., Maggiora, Marco, Maldaner, Stephan, Malde, Sneha, Malik, Qadeer Afzal, Mangoni, Alessio, Mao, Yajun, Mao, Zepu, Marcello, Simonetta, Meng, Z.X., Messchendorp, Johannes Gerhardus, Mezzadri, Giulio, Min, T.J., Mitchell, Ryan Edward, Mo, Xiaohu, Mo, Y.J., Muchnoi, Nikolai Yu., Muramatsu, Hajime, Nakhoul, Simon, Nefedov, Yury, Nerling, Frank, Nikolaev, Ivan Borisovich, Ning, Z., Nisar, Shabana, Olsen, Stephen L., Ouyang, Qun, Pacetti, Simone, Pan, Xiang, Pan, Y., Pathak, A., Patteri, Piero, Pelizäus, Marc, Peng, H. P., Peters, Klaus, Pettersson, J., Ping, J.L., Ping, R.G., Poling, Ronald, Prasad, Vindhyawasini, Qi, H., Qi, H.R., Qi, K.H., Qi, Ming, Qi, T.Y., Qian, S., Qian, W.B., Qian, Z., Qiao, Congfeng, Qin, L.Q., Qin, X.P., Qin, X.S., Qin, Zhonghua, Qiu, Jinfa, Qu, S.Q., Rashid, K.H., Ravindran, Krishnakumar, Redmer, Christoph Florian, Rivetti, Angelo, Rodin, Viktor, Da Rocha Rolo, Manuel Dionisio, Rong, Gang, Rosner, Christoph, Rump, Marcel Andre, Sang, H.S., Sarantsev, Andrei V., Schelhaas, Yasemin, Schnier, Claudius, Schönning, Karin, Scodeggio, Marco, Shan, D.C., Shan, Wei, Shan, Xinyu, Shangguan, J.F., Shao, M., Shen, C.P., Shen, H.F., Shen, P.X., Shen, X.Y., Shi, H.C., Shi, R.S., Shi, X., Shi, X.D., Song, J.J., Song, W.M., Song, Y.X., Sosio, Stefano, Spataro, Stefano, Su, K.X., Su, P.P., Sui, F.F., Sun, Gongxing, Sun, H.K., Sun, J.F., Sun, L., Sun, S.S., Sun, T., Sun, W.Y., Sun, X., Sun, Y.J., Sun, Y.K., Sun, Y.Z., Sun, Z.T., Tan, Y.H., Tan, Y.X., Tang, C.J., Tang, G.Y., Tang, J., Teng, J.X., Thoren, Viktor, Tian, W.H., Uman, Ismail, Wang, B., Wang, C.W., Wang, D.Y., Wang, H.J., Wang, H.P., Wang, K., Wang, L.L., Wang, M., Wang, M.Z., Wang, Meng, Wang, W., Wang, W.H., Wang, W.P., Wang, X., Wang, X.F., Wang, X.L., Wang, Y., Wang, Y.D., Wang, Y.F., Wang, Y.Q., Wang, Y.Y., Wang, Z., Wang, Zongyuan, Wang, Ziyi, Wei, D.H., Weidenkaff, Peter, Weidner, Frederik, Wen, Shuopin, White, D.J., Wiedner, Ulrich, Wilkinson, Guy, Wolke, Magnus, Wollenberg, Leonard, Wu, J.F., Wu, L.H., Wu, L.J., Wu, X., Wu, Z., Xia, Lei, Xiao, H., Xiao, S.Y., Xiao, Zhenjun, Xie, X.H., Xie, Y.G., Xie, Y.H., Xing, T.Y., Xu, Guofa, Xu, Q.J., Xu, W., Xu, Xinping, Xu, Y.C., Yan, F., Yan, L., Yan, W.B., Yan, W.C., Yan, Xu, Yang, H.J., Yang, Hongxun, Yang, L., Yang, S.L., Yang, Yongxu, Yang, Yifan, Yang, Zhi, Ye, M., Ye, Minghan, Yin, J.H., You, Z.Y., Yu, Boxiang, Yu, C.X., Yu, G., Yu, J.S., Yu, T., Yuan, Chang-Zheng, Yuan, L., Yuan, X.Q., Yuan, Y., Yuan, Z.Y., Yue, C.X., Yüncü, Alperen, Zafar, A.A., Zeng, X., Zeng, Y., Zhang, A. Q., Zhang, B. X., Zhang, Guangyi, Zhang, Haitao, Zhang, H.H., Zhang, Hongyu, Zhang, J.J., Zhang, J.L., Zhang, J.Q., Zhang, J.W., Zhang, Jianyong, Zhang, J.Z., Zhang, Jianyu, Zhang, Jiawei, Zhang, L.Q., Zhang, Lei, Zhang, S., Zhang, S.F., Zhang, Shulei, Zhang, X.D., Zhang, X.Y., Zhang, Y., Zhang, Y.H., Zhang, Y.T., Zhang, Yan, Zhang, Yao, Zhang, Yi, Zhang, Z.H., Zhang, Z.Y., Zhao, G., Zhao, J., Zhao, J.Y., Zhao, J.Z., Zhao, Lei, Zhao, Ling, Zhao, Ming-Gang, Zhao, Q., Zhao, Shujun, Zhao, Yubin, Zhao, Y.X., Zhao, Zhengguo, Zhemchugov, Alexey, Zheng, B., Zheng, Jianping, Zheng, Y., Zheng, Y.H., Zhong, B., Zhong, C., Zhou, L. P., Zhou, Q., Zhou, X., Zhou, X.K., Zhou, X.R., Zhu, A.N., Zhu, Jianhui, Zhu, K., Zhu, Kejun, Zhu, S.H., Zhu, T.J., Zhu, W.J., Zhu, Y.C., Zhu, Zian, Zou, B.S., and Zou, Jiaheng

Abstract

The electromagnetic process is studied with the initial-state-radiation technique using 7.5 fb−1 of data collected by the BESIII experiment at seven energy points from 3.773 to 4.600 GeV. The Born cross section and the effective form factor of the proton are measured from the production threshold to 3.0 GeV/ using the invariant-mass spectrum. The ratio of electric and magnetic form factors of the proton is determined from the analysis of the proton-helicity angular distribution.

Published
2021

9. Measurement of the Dynamics of the Decays D s + → η ( ′ ) e + ν e

Author

Ablikim, M., Achasov, M. N., Ahmed, S., Albrecht, M., Alekseev, M., Amoroso, A., An, F. F., An, Q., Bai, J. Z., Bai, Y., Bakina, O., Baldini Ferroli, R., Ban, Y., Begzsuren, K., Bennett, D. W., Bennett, J. V., Berger, N., Bertani, M., Bettoni, D., Bianchi, F., Boger, E., Boyko, I., Briere, R. A., Cai, H., Cai, X., Calcaterra, A., Cao, G. F., Cetin, S. A., Chai, J., Chang, J. F., Chelkov, G., Chen, G., Chen, H. S., Chen, J. C., Chen, M. L., Chen, P. L., Chen, S. J., Chen, X. R., Chen, Y. B., Cheng, W., Chu, X. K., Cibinetto, G., Cossio, F., Dai, H. L., Dai, J. P., Dbeyssi, A., Dedovich, D., Deng, Z. Y., Denig, A., Denysenko, I., Destefanis, M., De Mori, F., Ding, Y., Dong, C., Dong, J., Dong, L. Y., Dong, M. Y., Dou, Z. L., Du, S. X., Duan, P. F., Fang, J., Fang, S. S., Fang, Y., Farinelli, R., Fava, L., Fegan, S., Feldbauer, F., Felici, G., Feng, C. Q., Fioravanti, E., Fritsch, M., Fu, C. D., Gao, Q., Gao, X. L., Gao, Y., Gao, Y. G., Gao, Z., Garillon, B., Garzia, I., Gilman, A., Götzen, Klaus, Gong, L., Gong, W. X., Gradl, W., Greco, M., Gu, L. M., Gu, M. H., Gu, Y. T., Guo, A. Q., Guo, L. B., Guo, R. P., Guo, Y. P., Guskov, A., Haddadi, Z., Han, S., Hao, X. Q., Harris, F. A., He, K. L., He, X. Q., Heinsius, F. H., Held, T., Heng, Y. K., Hou, Z. L., Hu, H. M., Hu, J. F., Hu, T., Hu, Y., Huang, G. S., Huang, J. S., Huang, X. T., Huang, X. Z., Huang, Z. L., Hussain, T., Ikegami Andersson, W., Irshad, M., Ji, Q., Ji, Q. P., Ji, X. B., Ji, X. L., Jiang, X. S., Jiang, X. Y., Jiao, J. B., Jiao, Z., Jin, D. P., Jin, S., Jin, Y., Johansson, T., Julin, A., Kalantar-Nayestanaki, N., Kang, X. S., Kavatsyuk, M., Ke, B. C., Keshk, I. K., Khan, T., Khoukaz, A., Kiese, P., Kiuchi, R., Kliemt, Ralf, Koch, L., Kolcu, O. B., Kopf, B., Kornicer, M., Kuemmel, M., Kuessner, M., Kupsc, A., Kurth, M., Kühn, W., Lange, J. S., Larin, P., Lavezzi, L., Leiber, S., Leithoff, H., Li, C., Li, Cheng, Li, D. M., Li, F., Li, F. Y., Li, G., Li, H. B., Li, H. J., Li, J. C., Li, J. W., Li, K. J., Li, Kang, Li, Ke, Li, Lei, Li, P. L., Li, P. R., Li, Q. Y., Li, T., Li, W. D., Li, W. G., Li, X. L., Li, X. N., Li, X. Q., Li, Z. B., Liang, H., Liang, Y. F., Liang, Y. T., Liao, G. R., Liao, L. Z., Libby, J., Lin, C. X., Lin, Dexu, Liu, B., Liu, B. J., Liu, C. X., Liu, D., Liu, D. Y., Liu, F. H., Liu, Fang, Liu, Feng, Liu, H. B., Liu, H. L., Liu, H. M., Liu, Huanhuan, Liu, Huihui, Liu, J. B., Liu, J. Y., Liu, K. Y., Liu, Ke, Liu, L. D., Liu, Q., Liu, S. B., Liu, X., Liu, Y. B., Liu, Z. A., Liu, Zhiqing, Long, Y. F., Lou, X. C., Lu, H. J., Lu, J. G., Lu, Y., Lu, Y. P., Luo, C. L., Luo, M. X., Luo, T., Luo, X. L., Lusso, S., Lyu, X. R., Ma, F. C., Ma, H. L., Ma, L. L., Ma, M. M., Ma, Q. M., Ma, T., Ma, X. N., Ma, X. Y., Ma, Y. M., Maas, Frank, Maggiora, M., Maldaner, S., Malik, Q. A., Mangoni, A., Mao, Y. J., Mao, Z. P., Marcello, S., Meng, Z. X., Messchendorp, J. G., Mezzadri, G., Min, J., Min, T. J., Mitchell, R. E., Mo, X. H., Mo, Y. J., Morales Morales, C., Muchnoi, N. Yu., Muramatsu, H., Mustafa, A., Nakhoul, Simon, Nefedov, Y., Nerling, Frank, Nikolaev, I. B., Ning, Z., Nisar, S., Niu, S. L., Niu, X. Y., Olsen, S. L., Ouyang, Q., Pacetti, S., Pan, Y., Papenbrock, M., Patteri, P., Pelizaeus, M., Pellegrino, J., Peng, H. P., Peng, Z. Y., Peters, Klaus, Pettersson, J., Ping, J. L., Ping, R. G., Pitka, A., Poling, R., Prasad, V., Qi, H. R., Qi, M., Qi, T. Y., Qian, S., Qiao, C. F., Qin, N., Qin, X. S., Qin, Z. H., Qiu, J. F., Qu, S. Q., Rashid, K. H., Redmer, C. F., Richter, M., Ripka, M., Rivetti, A., Rolo, M., Rong, G., Rosner, Ch., Sarantsev, A., Savrié, M., Schoenning, K., Shan, W., Shan, X. Y., Shao, M., Shen, C. P., Shen, P. X., Shen, X. Y., Sheng, H. Y., Shi, X., Song, J. J., Song, W. M., Song, X. Y., Sosio, S., Sowa, C., Spataro, S., Sun, G. X., Sun, J. F., Sun, L., Sun, S. S., Sun, X. H., Sun, Y. J., Sun, Y. K., Sun, Y. Z., Sun, Z. J., Sun, Z. T., Tan, Y. T., Tang, C. J., Tang, G. Y., Tang, X., Tiemens, M., Tsednee, B., Uman, I., Wang, B., Wang, B. L., Wang, C. W., Wang, D., Wang, D. Y., Wang, Dan, Wang, K., Wang, L. L., Wang, L. S., Wang, M., Wang, Meng, Wang, P., Wang, P. L., Wang, W. P., Wang, X. F., Wang, Y., Wang, Y. F., Wang, Z., Wang, Z. G., Wang, Z. Y., Wang, Zongyuan, Weber, T., Wei, D. H., Weidenkaff, P., Wen, S. P., Wiedner, U., Wolke, M., Wu, L. H., Wu, L. J., Wu, Z., Xia, L., Xia, X., Xia, Y., Xiao, D., Xiao, Y. J., Xiao, Z. J., Xie, Y. G., Xie, Y. H., Xiong, X. A., Xiu, Q. L., Xu, G. F., Xu, J. J., Xu, L., Xu, Q. J., Xu, X. P., Yan, F., Yan, L., Yan, W. B., Yan, W. C., Yan, Y. H., Yang, H. J., Yang, H. X., Yang, L., Yang, R. X., Yang, Y. H., Yang, Y. X., Yang, Yifan, Yang, Z. Q., Ye, M., Ye, M. H., Yin, J. H., You, Z. Y., Yu, B. X., Yu, C. X., Yu, J. S., Yuan, C. Z., Yuan, Y., Yuncu, A., Zafar, A. A., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. H., Zhang, H. Y., Zhang, J., Zhang, J. L., Zhang, J. Q., Zhang, J. W., Zhang, J. Y., Zhang, J. Z., Zhang, K., Zhang, L., Zhang, S. F., Zhang, T. J., Zhang, X. Y., Zhang, Y., Zhang, Y. H., Zhang, Y. T., Zhang, Yang, Zhang, Yao, Zhang, Yu, Zhang, Z. H., Zhang, Z. P., Zhang, Z. Y., Zhao, G., Zhao, J. W., Zhao, J. Y., Zhao, J. Z., Zhao, Lei, Zhao, Ling, Zhao, M. G., Zhao, Q., Zhao, S. J., Zhao, T. C., Zhao, Y. B., Zhao, Z. G., Zhemchugov, A., Zheng, B., Zheng, J. P., Zheng, W. J., Zheng, Y. H., Zhong, B., Zhou, L., Zhou, Q., Zhou, X., Zhou, X. K., Zhou, X. R., Zhou, X. Y., Zhou, Xiaoyu, Zhou, Xu, Zhu, A. N., Zhu, J., Zhu, K., Zhu, K. J., Zhu, S., Zhu, S. H., Zhu, X. L., Zhu, Y. C., Zhu, Y. S., Zhu, Z. A., Zhuang, J., Zou, B. S., and Zou, J. H.

Abstract

Physical review letters 122(12), 121801 (2019). doi:10.1103/PhysRevLett.122.121801, Published by APS, College Park, Md.

Published
2019
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10. The Barrel TOF detector for P̅ANDA

Author

Steinschaden, Dominik, primary, Dutta, Kamal, additional, Gruber, Lukas, additional, Suzuki, Ken, additional, Böhm, Merlin, additional, Cardinali, Matteo, additional, Hoek, Matthias, additional, Kalita, kushal, additional, Götzen, Klaus, additional, Kumawat, H., additional, Lauth, Werner, additional, LEHMANN, Albert, additional, Marton, Johann, additional, Orth, Herbert, additional, Parmar, Arpitkumar, additional, Roy, Bidyut J, additional, Sonika, C, additional, Schmitt, Lars, additional, Schwarz, Carsten, additional, Sfienti, Concettina, additional, and Thiel, Michaela, additional

Published
2016
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11. First observation of $J/\psi $ and $\psi \left(2S\right)$ decaying to $n{K}_{S}^{0}\overline{\Lambda }+\text{c.c.}$

Author

Ablikim, M., Bai, J. Z., Chu, Y. P., Tong, G. L., Varner, G. S., Wang, D. Y., Wang, L., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, W. F., Dai, Y. S., Wang, Y. F., Wang, Z., Wang, Z. Y., Wang, Zheng, Wei, C. L., Wei, D. H., Weng, Y., Wu, N., Xia, X. M., Xie, X. X., Diao, L. Y., Xu, G. F., Xu, X. P., Xu, Y., Yan, M. L., Yang, H. X., Yang, Y. X., Ye, M. H., Ye, Y. X., Yu, G. W., Yuan, C. Z., Deng, Z. Y., Yuan, Y., Zang, S. L., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. Q., Zhang, H. Y., Zhang, J. W., Dong, Q. F., Zhang, J. Y., Zhang, S. H., Zhang, X. Y., Zhang, Yiyun, Zhang, Z. X., Zhang, Z. P., Zhao, D. X., Zhao, J. W., Zhao, M. G., Zhao, P. P., Du, S. X., Zhao, W. R., Zhao, Z. G., Zheng, H. Q., Zheng, J. P., Zheng, Z. P., Zhou, L., Zhu, K. J., Zhu, Q. M., Zhu, Y. C., Zhu, Y. S., Fang, J., Zhu, Z. A., Zhuang, B. A., Zhuang, X. A., Zou, B. S., BES Collaboration, Fang, S. S., Fu, C. D., Gao, C. S., Ban, Y., Gao, Y. N., Götzen, Klaus, Gu, S. D., Gu, Y. T., Guo, Y. N., Guo, Z. J., Harris, F. A., He, K. L., He, M., Heng, Y. K., Cai, X., Hou, J., Hu, H. M., Hu, J. H., Hu, T., Huang, G. S., Huang, X. T., Ji, X. B., Jiang, X. S., Jiang, X. Y., Jiao, J. B., Chen, H. F., Jin, D. P., Jin, S., Lai, Y. F., Li, G., Li, H. B., Li, J., Li, R. Y., Li, S. M., Li, W. D., Li, W. G., Chen, H. S., Li, X. L., Li, X. N., Li, X. Q., Liang, Y. F., Liao, H. B., Liu, B. J., Liu, C. X., Liu, F., Liu, Fang, Liu, H. H., Chen, H. X., Liu, H. M., Liu, J., Liu, J. B., Liu, J. P., Liu, Jian, Liu, Q., Liu, R. G., Liu, Z. A., Lou, Y. C., Lu, F., Chen, J. C., Lu, G. R., Lu, J. G., Luo, C. L., Ma, F. C., Ma, H. L., Ma, L. L., Ma, Q. M., Mao, Z. P., Mo, X. H., Nie, J., Chen, Jin, Olsen, S. L., Peters, K. J., Ping, R. G., Qi, N. D., Qin, H., Qiu, J. F., Ren, Z. Y., Rong, G., Ruan, X. D., Shan, L. Y., Chen, Y. B., Shang, L., Shen, C. P., Shen, D. L., Shen, X. Y., Sheng, H. Y., Sun, H. S., Sun, S. S., Sun, Y. Z., Sun, Z. J., and Tang, X.

Subjects
ddc:530
Abstract

Physics letters / B B 659(4), 789 - 795 (2008). doi:10.1016/j.physletb.2007.11.087, Published by North-Holland Publ., Amsterdam

Published
2008
Full Text
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12. Search for the rare decays $J/\psi \to {D}_{s}^{-}{\pi }^{+}$, $J/\psi \to {D}^{-}{\pi }^{+}$, and $J/\psi \to {\overline{D}}^{0}{\overline{K}}^{0}$

Author

Ablikim, M., Bai, J. Z., Chu, Y. P., Tong, G. L., Varner, G. S., Wang, D. Y., Wang, L., Wang, L. L., Wang, L. S., Wang, M., Wang, P., Wang, P. L., Wang, W. F., Dai, Y. S., Wang, Y. F., Wang, Z., Wang, Z. Y., Wang, Zheng, Wei, C. L., Wei, D. H., Weng, Y., Wu, N., Xia, X. M., Xie, X. X., Diao, L. Y., Xu, G. F., Xu, X. P., Xu, Y., Yan, M. L., Yang, H. X., Yang, Y. X., Ye, M. H., Ye, Y. X., Yu, G. W., Yuan, C. Z., Deng, Z. Y., Yuan, Y., Zang, S. L., Zeng, Y., Zhang, B. X., Zhang, B. Y., Zhang, C. C., Zhang, D. H., Zhang, H. Q., Zhang, H. Y., Zhang, J. W., Dong, Q. F., Zhang, J. Y., Zhang, S. H., Zhang, X. Y., Zhang, Yiyun, Zhang, Z. X., Zhang, Z. P., Zhao, D. X., Zhao, J. W., Zhao, M. G., Zhao, P. P., Du, S. X., Zhao, W. R., Zhao, Z. G., Zheng, H. Q., Zheng, J. P., Zheng, Z. P., Zhou, L., Zhu, K. J., Zhu, Q. M., Zhu, Y. C., Zhu, Y. S., Fang, J., Zhu, Z. A., Zhuang, B. A., Zhuang, X. A., Zou, B. S., BES Collaboration, Fang, S. S., Fu, C. D., Gao, C. S., Ban, Y., Gao, Y. N., Götzen, Klaus, Gu, S. D., Gu, Y. T., Guo, Y. N., Guo, Z. J., Harris, F. A., He, K. L., He, M., Heng, Y. K., Cai, X., Hou, J., Hu, H. M., Hu, J. H., Hu, T., Huang, G. S., Huang, X. T., Ji, X. B., Jiang, X. S., Jiang, X. Y., Jiao, J. B., Chen, H. F., Jin, D. P., Jin, S., Lai, Y. F., Li, G., Li, H. B., Li, J., Li, R. Y., Li, S. M., Li, W. D., Li, W. G., Chen, H. S., Li, X. L., Li, X. N., Li, X. Q., Liang, Y. F., Liao, H. B., Liu, B. J., Liu, C. X., Liu, F., Liu, Fang, Liu, H. H., Chen, H. X., Liu, H. M., Liu, J., Liu, J. B., Liu, J. P., Liu, Jian, Liu, Q., Liu, R. G., Liu, Z. A., Lou, Y. C., Lu, F., Chen, J. C., Lu, G. R., Lu, J. G., Luo, C. L., Ma, F. C., Ma, H. L., Ma, L. L., Ma, Q. M., Mao, Z. P., Mo, X. H., Nie, J., Chen, Jin, Olsen, S. L., Peters, K. J., Ping, R. G., Qi, N. D., Qin, H., Qiu, J. F., Ren, Z. Y., Rong, G., Ruan, X. D., Shan, L. Y., Chen, Y. B., Shang, L., Shen, C. P., Shen, D. L., Shen, X. Y., Sheng, H. Y., Sun, H. S., Sun, S. S., Sun, Y. Z., Sun, Z. J., and Tang, X.

Subjects
ddc:530
Abstract

Physics letters / B B 663(4), 297 - 301 (2008). doi:10.1016/j.physletb.2008.04.028, Published by North-Holland Publ., Amsterdam

Published
2008
Full Text
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13. Untersuchung des Zerfalls \(D_{s}^{\pm}\rightarrow K^{+}K^{-}\pi^{+}\pi^{-}\pi^{\pm}\)

Author

Götzen, Klaus (Dipl.)

Subjects
Dalitz-Plot, Massenresonanz, Vektormesondominanz, Mesonenspektroskopie, D-s-Meson, ddc:530
Abstract

Der am Speicherring PEP-II des Stanford Linear Accelerator Centers befindliche BABAR-Detektor bietet neben der Rekonstruktion von B-Mesonen zur Untersuchung der CP-Verletzung auch hervorragende Möglichkeiten zur Spektroskopie charmhaltiger Teilchen wie Ds-Mesonen. Bei der Untersuchung der Zerfallsraten schwerer Mesonen fällt auf, dass die Verzweigungsverhältnisse mit dem Axialvektormeson a1+ im Endzustand von gleicher Größenordnung sind wie die entsprechenden Werte mit dem Vektormeson rho+ im Endzustand. Diese Feststellung führt zur Hypothese einer Vektordominanz bei schwachen Zerfällen schwerer Mesonen. Beschrieben wird die Rekonstruktion der Zerfälle \(D_{s}\rightarrow\phi\pi^{+}\pi^{-}\pi^{\pm}\) und \(D_{s}\rightarrow\phi\pi^{\pm}\), sowie die Bestimmung des relativen Verzweigungsverhältnisses dieser beiden Zerfallskanäle. Die anschliessende Untersuchung der Resonanzstruktur des 3-Pion-Systems im erstgenannten Zerfallskanals zum Nachweis des Zerfalls \(D_{s}\rightarrow\pi{}\) a1 führt zum Test des oben genannten Vektordominanzmodelles.

Published
2003

14. Untersuchung des Zerfalls Ds±→K+K-π+π-π±

Author

Götzen, Klaus and Physik und Astronomie

Subjects
Vektormesondominanz, Mesonenspektroskopie, D-s-Meson, Massenresonanz, Dalitz-Plot
Abstract

Der am Speicherring PEP-II des Stanford Linear Accelerator Centers befindliche BABAR-Detektor bietet neben der Rekonstruktion von B-Mesonen zur Untersuchung der CP-Verletzung auch hervorragende Möglichkeiten zur Spektroskopie charmhaltiger Teilchen wie Ds-Mesonen. Bei der Untersuchung der Zerfallsraten schwerer Mesonen fällt auf, dass die Verzweigungsverhältnisse mit dem Axialvektormeson a1+ im Endzustand von gleicher Größenordnung sind wie die entsprechenden Werte mit dem Vektormeson rho+ im Endzustand. Diese Feststellung führt zur Hypothese einer Vektordominanz bei schwachen Zerfällen schwerer Mesonen. Beschrieben wird die Rekonstruktion der Zerfälle Ds→φπ+π-π± und Ds→φπ±, sowie die Bestimmung des relativen Verzweigungsverhältnisses dieser beiden Zerfallskanäle. Die anschliessende Untersuchung der Resonanzstruktur des 3- Pion-Systems im erstgenannten Zerfallskanals zum Nachweis des Zerfalls Ds→π a1 führt zum Test des oben genannten Vektordominanzmodelles.

Published
2003

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