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1. Measurement of the phase between strong and electromagnetic amplitudes of J/ψ decays

Author: M. Ablikim, M.N. Achasov, S. Ahmed, M. Albrecht, A. Amoroso, F.F. An, Q. An, Y. Bai, O. Bakina, R. Baldini Ferroli, Y. Ban, D.W. Bennett, J.V. Bennett, N. Berger, M. Bertani, D. Bettoni, J.M. Bian, F. Bianchi, E. Boger, I. Boyko, R.A. Briere, H. Cai, X. Cai, O. Cakir, A. Calcaterra, G.F. Cao, S.A. Cetin, J. Chai, J.F. Chang, G. Chelkov, G. Chen, H.S. Chen, J.C. Chen, M.L. Chen, P.L. Chen, S.J. Chen, X.R. Chen, Y.B. Chen, X.K. Chu, G. Cibinetto, H.L. Dai, J.P. Dai, A. Dbeyssi, D. Dedovich, Z.Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, Y. Ding, C. Dong, J. Dong, L.Y. Dong, M.Y. Dong, Z.L. Dou, S.X. Du, P.F. Duan, J. Fang, S.S. Fang, X. Fang, Y. Fang, R. Farinelli, L. Fava, S. Fegan, F. Feldbauer, G. Felici, C.Q. Feng, E. Fioravanti, M. Fritsch, C.D. Fu, Q. Gao, X.L. Gao, Y. Gao, Y.G. Gao, Z. Gao, I. Garzia, K. Goetzen, L. Gong, W.X. Gong, W. Gradl, M. Greco, M.H. Gu, S. Gu, Y.T. Gu, A.Q. Guo, L.B. Guo, R.P. Guo, Y.P. Guo, Z. Haddadi, S. Han, X.Q. Hao, F.A. Harris, K.L. He, F.H. Heinsius, T. Held, Y.K. Heng, T. Holtmann, Z.L. Hou, C. Hu, H.M. Hu, T. Hu, Y. Hu, G.S. Huang, J.S. Huang, X.T. Huang, X.Z. Huang, Z.L. Huang, T. Hussain, W. Ikegami Andersson, Q. Ji, Q.P. Ji, X.B. Ji, X.L. Ji, X.S. Jiang, X.Y. Jiang, J.B. Jiao, Z. Jiao, D.P. Jin, S. Jin, Y. Jin, T. Johansson, A. Julin, N. Kalantar-Nayestanaki, X.L. Kang, X.S. Kang, M. Kavatsyuk, B.C. Ke, T. Khan, A. Khoukaz, P. Kiese, R. Kliemt, L. Koch, O.B. Kolcu, B. Kopf, M. Kornicer, M. Kuemmel, M. Kuessner, M. Kuhlmann, A. Kupsc, W. Kühn, J.S. Lange, M. Lara, P. Larin, L. Lavezzi, S. Leiber, H. Leithoff, C. Leng, C. Li, Cheng Li, D.M. Li, F. Li, F.Y. Li, G. Li, H.B. Li, H.J. Li, J.C. 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. Li, H. Liang, Y.F. Liang, Y.T. Liang, G.R. Liao, D.X. Lin, B. Liu, B.J. Liu, C.X. Liu, D. Liu, F.H. Liu, Fang Liu, Feng Liu, H.B. Liu, H.M. Liu, Huanhuan Liu, Huihui Liu, J.B. Liu, J.P. Liu, J.Y. Liu, K. Liu, K.Y. Liu, Ke Liu, L.D. Liu, P.L. Liu, Q. Liu, S.B. Liu, X. Liu, Y.B. Liu, Z.A. Liu, Zhiqing Liu, Y.F. Long, X.C. Lou, H.J. Lu, J.G. Lu, Y. Lu, Y.P. Lu, C.L. Luo, M.X. Luo, X.L. Luo, X.R. Lyu, 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. Ma, F.E. Maas, M. Maggiora, Q.A. Malik, Y.J. Mao, Z.P. Mao, S. Marcello, Z.X. Meng, J.G. Messchendorp, G. Mezzadri, J. Min, T.J. Min, R.E. Mitchell, X.H. Mo, Y.J. Mo, C. Morales Morales, G. Morello, N.Yu. Muchnoi, H. Muramatsu, A. Mustafa, Y. Nefedov, F. Nerling, I.B. Nikolaev, Z. Ning, S. Nisar, S.L. Niu, X.Y. Niu, S.L. Olsen, Q. Ouyang, S. Pacetti, Y. Pan, M. Papenbrock, P. Patteri, M. Pelizaeus, J. Pellegrino, H.P. Peng, K. Peters, J. Pettersson, J.L. Ping, R.G. Ping, A. Pitka, R. Poling, V. Prasad, H.R. Qi, M. Qi, S. Qian, C.F. Qiao, N. Qin, X.S. Qin, Z.H. Qin, J.F. Qiu, K.H. Rashid, C.F. Redmer, M. Richter, M. Ripka, M. Rolo, G. Rong, Ch. Rosner, X.D. Ruan, A. Sarantsev, M. Savrié, C. Schnier, K. Schoenning, W. Shan, M. Shao, C.P. Shen, P.X. Shen, X.Y. Shen, H.Y. Sheng, J.J. Song, W.M. Song, X.Y. Song, S. Sosio, C. Sowa, S. Spataro, 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. Sun, C.J. Tang, G.Y. Tang, X. Tang, I. Tapan, M. Tiemens, B. Tsednee, I. Uman, G.S. Varner, B. Wang, B.L. 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.D. Wang, Y.F. Wang, Y.Q. Wang, Z. Wang, Z.G. Wang, Z.H. Wang, Z.Y. Wang, Zongyuan Wang, T. Weber, D.H. Wei, P. Weidenkaff, S.P. Wen, U. Wiedner, M. Wolke, L.H. Wu, L.J. Wu, Z. Wu, L. Xia, X. Xia, Y. Xia, D. Xiao, H. Xiao, Y.J. Xiao, Z.J. Xiao, Y.G. Xie, Y.H. Xie, X.A. Xiong, Q.L. Xiu, G.F. Xu, J.J. Xu, L. Xu, Q.J. Xu, Q.N. Xu, X.P. Xu, L. Yan, W.B. Yan, W.C. Yan, Y.H. Yan, H.J. Yang, H.X. Yang, L. Yang, Y.H. Yang, Y.X. Yang, Yifan Yang, M. Ye, M.H. Ye, J.H. Yin, Z.Y. You, B.X. Yu, C.X. Yu, J.S. Yu, C.Z. Yuan, Y. Yuan, A. Yuncu, A.A. Zafar, A. Zallo, Y. Zeng, Z. Zeng, 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.Q. Zhang, X.Y. Zhang, Y.H. Zhang, Y.T. Zhang, Yang Zhang, Yao Zhang, Yu Zhang, Z.H. Zhang, Z.P. Zhang, Z.Y. Zhang, 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. Zhao, A. Zhemchugov, B. Zheng, J.P. Zheng, W.J. Zheng, Y.H. Zheng, B. Zhong, L. Zhou, X. Zhou, X.K. Zhou, X.R. Zhou, X.Y. Zhou, Y.X. Zhou, J. Zhu, K. Zhu, K.J. Zhu, S. Zhu, S.H. Zhu, X.L. Zhu, Y.C. Zhu, Y.S. Zhu, Z.A. Zhu, J. Zhuang, B.S. Zou, and J.H. Zou
Subjects: Physics, QC1-999
Abstract: Using 16 energy points of e+e− annihilation data collected in the vicinity of the J/ψ resonance with the BESIII detector and with a total integrated luminosity of around 100pb−1, we study the relative phase between the strong and electromagnetic amplitudes of J/ψ decays. The relative phase between J/ψ electromagnetic decay and the continuum process (e+e− annihilation without the J/ψ resonance) is confirmed to be zero by studying the cross section lineshape of μ+μ− production. The relative phase between J/ψ strong and electromagnetic decays is then measured to be (84.9±3.6)∘ or (−84.7±3.1)∘ for the 2(π+π−)π0 final state by investigating the interference pattern between the J/ψ decay and the continuum process. This is the first measurement of the relative phase between J/ψ strong and electromagnetic decays into a multihadron final state using the lineshape of the production cross section. We also study the production lineshape of the multihadron final state ηπ+π− with η→π+π−π0, which provides additional information about the phase between the J/ψ electromagnetic decay amplitude and the continuum process. Additionally, the branching fraction of J/ψ→2(π+π−)π0 is measured to be (4.73±0.44)% or (4.85±0.45)%, and the branching fraction of J/ψ→ηπ+π− is measured to be (3.78±0.68)×10−4. Both of them are consistent with the world average values. The quoted uncertainties include both statistical and systematic uncertainties, which are mainly caused by the low statistics. Keywords: Phase, Strong amplitude, Electromagnetic amplitude, J/ψ decay, BESIII
Published: 2019
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2. Technical design report for the endcap disc DIRC

Author: F Davì, W Erni, B Krusche, M Steinacher, N Walford, H Liu, Z Liu, B Liu, X Shen, C Wang, J Zhao, M Albrecht, T Erlen, F Feldbauer, M Fink, V Freudenreich, M Fritsch, F H Heinsius, T Held, T Holtmann, I Keshk, H Koch, B Kopf, M Kuhlmann, M Kümmel, S Leiber, P Musiol, A Mustafa, M Pelizäus, A Pitka, G Reicherz, M Richter, C Schnier, T Schröder, S Sersin, L Sohl, C Sowa, M Steinke, T Triffterer, U Wiedner, R Beck, C Hammann, J Hartmann, B Ketzer, M Kube, M Rossbach, C Schmidt, R Schmitz, U Thoma, M Urban, A Bianconi, M Bragadireanu, D Pantea, W Czyzycki, M Domagala, G Filo, J Jaworowski, M Krawczyk, E Lisowski, F Lisowski, M Michałk, J Płażek, K Korcyl, A Kozela, P Kulessa, P Lebiedowicz, K Pysz, W Schäfer, A Szczurek, T Fiutowski, M Idzik, B Mindur, K Swientek, J Biernat, B Kamys, S Kistryn, G Korcyl, W Krzemien, A Magiera, P Moskal, W Przygoda, Z Rudy, P Salabura, J Smyrski, P Strzempek, A Wronska, I Augustin, R Böhm, I Lehmann, D Nicmorus Marinescu, L Schmitt, V Varentsov, M Al-Turany, A Belias, H Deppe, N Divani Veis, R Dzhygadlo, H Flemming, A Gerhardt, K Götzen, R Karabowicz, U Kurilla, D Lehmann, S Löchner, J Lühning, U Lynen, S Nakhoul, H Orth, K Peters, T Saito, G Schepers, C J Schmidt, C Schwarz, J Schwiening, A Täschner, M Traxler, B Voss, P Wieczorek, A Wilms, V Abazov, G Alexeev, V A Arefiev, V Astakhov, M Yu Barabanov, B V Batyunya, V Kh Dodokhov, A Efremov, A Fechtchenko, A Galoyan, G Golovanov, E K Koshurnikov, Y Yu Lobanov, V I Lobanov, V Malyshev, A G Olshevskiy, A A Piskun, A Samartsev, M G Sapozhnikov, N B Skachkov, A N Skachkova, E A Strokovsky, V Tokmenin, V Uzhinsky, A Verkheev, A Vodopianov, N I Zhuravlev, A Zinchenko, D Branford, D Glazier, D Watts, M Böhm, W Eyrich, A Lehmann, D Miehling, M Pfaffinger, S Stelter, F Uhlig, S Dobbs, K Seth, A Tomaradze, T Xiao, D Bettoni, A Ali, A Hamdi, M Krebs, F Nerling, V Akishina, S Gorbunov, I Kisel, G Kozlov, M Pugach, M Zyzak, N Bianchi, P Gianotti, C Guaraldo, V Lucherini, G Bracco, S Bodenschatz, K T Brinkmann, V Di Pietro, S Diehl, V Dormenev, M Düren, E Etzelmüller, K Föhl, M Galuska, T Geßler, E Gutz, C Hahn, A Hayrapetyan, M Kesselkaul, W Kühn, T Kuske, J S Lange, Y Liang, O Merle, V Metag, M Moritz, M Nanova, R Novotny, T Quagli, A Riccardi, J Rieke, M Schmidt, R Schnell, H Stenzel, M Strickert, U Thöring, T Wasem, B Wohlfahrt, H G Zaunick, E Tomasi-Gustafsson, D Ireland, G Rosner, B Seitz, P N Deepak, A Kulkarni, A Apostolou, M Babai, M Kavatsyuk, H Loehner, J Messchendorp, P Schakel, M Tiemens, J C van der Weele, S Vejdani, K Dutta, K Kalita, H Sohlbach, M Bai, L Bianchi, M Büscher, A Derichs, R Dosdall, A Erven, V Fracassi, A Gillitzer, F Goldenbaum, D Grunwald, L Jokhovets, G Kemmerling, H Kleines, A Lai, A Lehrach, M Mikirtychyants, S Orfanitski, D Prasuhn, E Prencipe, J Pütz, J Ritman, E Rosenthal, S Schadmand, T Sefzick, V Serdyuk, G Sterzenbach, T Stockmanns, P Wintz, P Wüstner, H Xu, Y Zhou, Z Li, X Ma, V Rigato, L Isaksson, P Achenbach, A Aycock, O Corell, A Denig, M Distler, M Hoek, W Lauth, H Merkel, U Müller, J Pochodzalla, S Sanchez, S Schlimme, C Sfienti, M Thiel, M Zambrana, H Ahmadi, S Ahmed, S Bleser, L Capozza, M Cardinali, A Dbeyssi, A Ehret, B Fröhlich, P Grasemann, S Haasler, D Izard, J Jorge, D Khaneft, R Klasen, R Kliemt, J Köhler, H H Leithoff, D Lin, F Maas, S Maldaner, M Michel, M C Mora Espí, C Morales Morales, C Motzko, O Noll, S Pflüger, D Rodríguez Piñeiro, M Steinen, E Walaa, S Wolff, I Zimmermann, A Fedorov, M Korzhik, O Missevitch, P Balanutsa, V Chernetsky, A Demekhin, A Dolgolenko, P Fedorets, A Gerasimov, V Goryachev, D Y Kirin, V A Matveev, A V Stavinskiy, A Balashoff, A Boukharov, O Malyshev, I Marishev, V Chandratre, V Datar, V Jha, H Kumawat, A K Mohanty, A Parmar, A K Rai, B Roy, G Sonika, C Fritzsch, S Grieser, A K Hergemöller, B Hetz, N Hüsken, A Khoukaz, J P Wessels, C Herold, K Khosonthongkee, C Kobdaj, A Limphirat, P Srisawad, Y Yan, A E Blinov, S Kononov, E A Kravchenko, E Antokhin, M Barnyakov, A Yu Barnyakov, K Beloborodov, V E Blinov, V S Bobrovnikov, I A Kuyanov, A P Onuchin, S Pivovarov, E Pyata, S Serednyakov, Y Tikhonov, R Kunne, D Marchand, B Ramstein, J van de Wiele, Y Wang, G Boca, V Burian, M Finger, A Nikolovova, M Pesek, M Peskova, M Pfeffer, I Prochazka, M Slunecka, P Gallus, V Jary, J Novy, M Tomasek, M Virius, V Vrba, V Abramov, N Belikov, S Bukreeva, A Davidenko, A Derevschikov, Y Goncharenko, V Grishin, V Kachanov, V Kormilitsin, A Levin, Y Melnik, N Minaev, V Mochalov, D Morozov, L Nogach, S Poslavskiy, A Ryazantsev, S Ryzhikov, P Semenov, I Shein, A Uzunian, A Vasiliev, A Yakutin, U Roy, B Yabsley, S Belostotski, G Gavrilov, A Izotov, S Manaenkov, O Miklukho, D Veretennikov, A Zhdanov, T Bäck, B Cederwall, K Makonyi, M Preston, P E Tegner, D Wölbing, S Godre, M P Bussa, S Marcello, S Spataro, F Iazzi, R Introzzi, A Lavagno, D Calvo, P De Remigis, A Filippi, G Mazza, A Rivetti, R Wheadon, A Martin, H Calen, W Ikegami Andersson, T Johansson, A Kupsc, P Marciniewski, M Papenbrock, J Pettersson, J Regina, K Schönning, M Wolke, J Diaz, V Pothodi Chackara, A Chlopik, G Kesik, D Melnychuk, B Slowinski, A Trzcinski, M Wojciechowski, S Wronka, B Zwieglinski, P Bühler, J Marton, D Steinschaden, K Suzuki, E Widmann, S Zimmermann, and J Zmeskal
Subjects: Subatomär fysik, Nuclear and High Energy Physics, PANDA, Subatomic Physics, Acceleratorfysik och instrumentering, technical design report, particle identification, Accelerator Physics and Instrumentation, Cherenkov detector
Abstract: PANDA (anti-proton annihiliation at Darmstadt) is planned to be one of the four main experiments at the future international accelerator complex FAIR (Facility for Antiproton and Ion Research) in Darmstadt, Germany. It is going to address fundamental questions of hadron physics and quantum chromodynamics using cooled antiproton beams with a high intensity and and momenta between 1.5 and 15 GeV/c. PANDA is designed to reach a maximum luminosity of 2 × 1032 cm−2 s. Most of the physics programs require an excellent particle identification (PID). The PID of hadronic states at the forward endcap of the target spectrometer will be done by a fast and compact Cherenkov detector that uses the detection of internally reflected Cherenkov light (DIRC) principle. It is designed to cover the polar angle range from 5° to 22° and to provide a separation power for the separation of charged pions and kaons up to 3 standard deviations (s.d.) for particle momenta up to 4 GeV/c in order to cover the important particle phase space. This document describes the technical design and the expected performance of the novel PANDA disc DIRC detector that has not been used in any other high energy physics experiment before. The performance has been studied with Monte-Carlo simulations and various beam tests at DESY and CERN. The final design meets all PANDA requirements and guarantees sufficient safety margins.
Published: 2022

3. Determination of the Pseudoscalar Decay Constant fDs+ via Ds+→μ+νμ

Author: M. Y. Dong, H. Liang, H. B. Liu, D. Y. Liu, J. B. Jiao, Y. K. Heng, R. Farinelli, M. Qi, J. H. Zou, H. L. Ma, H. J. Yang, D. M. Li, S. S. Sun, X. S. Qin, M. Fritsch, S. Ahmed, M. Pelizaeus, M. Richter, Z. Ning, L. J. Wu, Y. J. Mo, R. E. Mitchell, H. J. Lu, J. G. Lu, Kai Liu, Michael Papenbrock, F. Yan, J. F. Hu, X. B. Ji, M. Tiemens, Ke Liu, S. B. Liu, S. F. Zhang, Zhiyong Zhang, J. C. Li, J. Zhuang, F. E. Maas, T. Hu, L. Zhang, Y. Nefedov, F. De Mori, Y. Zhang, T. Holtmann, P. Patteri, J. Y. Liu, Q. A. Malik, G. Mezzadri, S. Qian, Q. An, Jialun Ping, K. Zhang, Z. J. Xiao, M. X. Luo, D. V. Dedovich, F. Li, F. C. Ma, Fang Liu, X. K. Zhou, I. Denysenko, W. C. Yan, O. Bakina, M. Bertani, Z. Haddadi, L. Yang, Q. Gao, Y. N. Gao, Ke Li, X. N. Ma, L. M. Gu, L. P. Zhou, Y. M. Ma, Z. P. Mao, X. Y. Zhang, Meng Wang, X. Y. Zhou, Z. T. Sun, M. Lara, J. B. Liu, Y. J. Sun, Yifan Yang, J. Z. Fan, Zhiqing Liu, T. Johansson, J. F. Chang, G. S. Huang, X. Zhou, Y. Fu, I. Tapan, Y. H. Yan, I. B. Nikolaev, J. H. Yin, B. Y. Zhang, Ke Wang, X D Shi, Xiao-Rui Lyu, Y. J. Mao, Y. F. Wang, O. B. Kolcu, X. Cai, L. Lavezzi, X. Q. Hao, J. W. Zhao, V. Prasad, Yunlong Zhang, H. L. Liu, Y. X. Yang, D. Bettoni, H. X. Yang, I. Garzia, Y. P. Lu, Cui Li, P. X. Shen, Z. Wu, J. F. Qiu, Q. P. Ji, Y. C. Zhu, L. Yan, P. Wang, M. Kuessner, J. Fang, Tao Li, A. Calcaterra, Z. G. Zhao, S. Fegan, L. Z. Liao, H. H. Zhang, Z. J. Sun, Y. G. Gao, B. Garillon, Huihui Liu, Y. T. Tan, W. Gradl, M. Ripka, Q. Zhao, Y. Ban, P. Weidenkaff, F. H. Heinsius, Z. Gao, S. P. Wen, X. R. Zhou, Jun-Yi Zhang, Y. P. Guo, J. G. Messchendorp, Zhiqing Zhang, M. Shao, Y. T. Gu, L. Fava, Ch. Rosner, J. P. Dai, R. Poling, G. S. Varner, Liqing Xu, X. Y. Shen, Y. Z. Sun, Bibo Ke, A. Zallo, B. Wang, W. B. Yan, M. N. Achasov, D. Y. Wang, J. Libby, C. X. Lin, R. Kliemt, H. B. Li, A. G. Denig, C. L. Luo, X. Xia, M. Kuemmel, Matthew Glenn Kurth, Qiunan Xu, W. Shan, Cheng Li, S. Han, Z. P. Zhang, Xiaozhong Huang, Gang Zhao, Yaquan Fang, S. Zhu, X. Liu, A. Mangoni, A. Guskov, H. R. Qi, Q. Zhou, J. J. Xu, J. Min, X. F. Wang, A. Sarantsev, A. Pitka, A. Q. Guo, C. W. Wang, G. Rong, S. Pacetti, L. H. Wu, Y. Ding, M. Kavatsyuk, Q. M. Ma, C. C. Zhang, D. H. Wei, P. R. Li, J. S. Lange, Serkant Ali Cetin, P. L. Chen, D. W. Bennett, G. A. Chelkov, B. Zhong, L. B. Guo, Zujian Wang, Y. Bai, T. Held, Yang Zhang, Ling Zhao, B. J. Liu, A. Mustafa, J. L. Zhang, J. S. Huang, B. Kopf, M. H. Gu, H. Muramatsu, A. N. Zhu, Ulrich Wiedner, K. L. He, Tao Zhang, Y. H. Xie, J. Pellegrino, W. P. Wang, T. J. Min, M. Kornicer, Andrzej Kupsc, C. X. Liu, Z. H. Qin, H. Y. Sheng, Y. Yuan, Y. S. Zhu, K. J. Zhu, W. Kühn, X. L. Ji, M. Maggiora, W. M. Song, M. Z. Wang, Jimin Zhao, K. Schoenning, Q. Y. Li, G. Cibinetto, Yu Zhang, B. S. Zou, Z. Liu, M. L. Chen, W. G. Li, P. L. Li, Z. Y. You, Z. A. Zhu, Niklaus Berger, C. X. Yu, Y. K. Sun, Xu Shan, Yi Jin, Xinglong Li, S. Spataro, X. H. Mo, L. S. Wang, M. Destefanis, Q. Liu, X. Y. Jiang, M. H. Ye, Lei Zhao, Z. L. Hou, X. P. Xu, Lei Li, B. X. Zhang, Bingxuan Liu, B. Zheng, T. Weber, M. M. Ma, L. L. Ma, L. Gong, T. Khan, R. G. Ping, J. W. Li, P. L. Wang, G. F. Xu, X. Tang, L. L. Wang, H. Cai, A. Amoroso, M. Alekseev, P. F. Duan, C. P. Shen, Dan Wang, G. F. Cao, Yao Zhang, Y. G. Xie, G. Li, Y. Hu, L. Xia, Muhammad Irshad, A. Yuncu, M. Rolo, A. Dbeyssi, C. Z. Yuan, Y. J. Xiao, S. X. Du, Magnus Wolke, Gianfranco Morello, M. Albrecht, Y. F. Liang, Z. L. Dou, A. Gilman, J. F. Sun, Y. Pan, D. P. Jin, A. Julin, X. Y. Song, F. Cossio, W. D. Li, F. Feldbauer, C. D. Fu, L. Y. Dong, J. Chai, B. T. Tsednee, Z. X. Meng, X. A. Xiong, N. Qin, G. X. Sun, J. V. Bennett, Shan Jin, K. Goetzen, F. A. Harris, W. L. Chang, Z. L. Huang, Feng Liu, S. Marcello, Y. Zeng, W. J. Zheng, Fenfen An, C. Q. Feng, F. Nerling, A. A. Zafar, H. Leithoff, Z. Jiao, Fu-Hu Liu, D. H. Zhang, Z. Y. Deng, M. Ablikim, C. Sowa, Y. B. Zhao, S. Lusso, J. Dong, B. L. Wang, Y. Q. Wang, S. Nisar, C. J. Tang, Xingguo Li, Y. B. Chen, K. H. Rashid, Xiaofeng Zhu, J. Z. Zhang, J. J. Song, L. Sun, D. Xiao, Y. T. Liang, Krisztian Peters, S. L. Yang, G. R. Liao, S. J. Chen, T. C. Zhao, Jinxing Zheng, C. F. Redmer, J. D. Lu, C. Schnier, X. T. Huang, Huanhuan Liu, G. Felici, B. X. Yu, Z. G. Wang, Zhi Zeng, H. Y. Zhang, Haiwen Liu, G. F. Chen, J. Y. Zhang, H. S. Chen, H. L. Dai, Igor Boyko, H. J. Li, L. Koch, A. Khoukaz, M. G. Zhao, Y. H. Yang, X. X. Ma, J. Zhu, Q. L. Xiu, S. J. Zhao, Q. J. Xu, J. C. Chen, Xuanhong Lou, Zongyuan Wang, S. Leiber, Nasser Kalantar-Nayestanaki, C. Morales Morales, Haiping Peng, Q. Ouyang, S. S. Fang, Y. B. Liu, X. L. Luo, K. Begzsuren, Y. H. Zheng, F. Bianchi, Cong-Feng Qiao, N. Yu. Muchnoi, X. S. Kang, Y. H. Zhang, Z. Y. Wang, T. Hussain, X. Y. Ma, W. X. Gong, X. H. Sun, J. Q. Zhang, S. L. Niu, F. Y. Li, X. Q. Li, Y. F. Long, M. Greco, R. Baldini Ferroli, K. Y. Liu, R. P. Guo, Z. B. Li, W. Ikegami Andersson, P. Kiese, S. L. Olsen, R. A. Briere, X. S. Jiang, O. Cakir, T. Y. Qi, Y. X. Xia, S. H. Zhu, G. Y. Tang, Jie Zhao, D. X. Lin, Alexey Zhemchugov, H. M. Hu, J. W. Zhang, I. Uman, S. Nakhoul, P. Larin, X. L. Gao, C. Dong, S. Sosio, and Joachim Pettersson
Subjects: Pseudoscalar, Physics, Particle physics, Exponential decay
Published: 2020

4. Observation of the W -annihilation decay Ds+→ωπ+ and evidence for Ds+→ωK+

Author: Yaquan Fang, Shou-hua Zhu, Y. H. Zheng, Cong-Feng Qiao, Q. Liu, Tristan Weber, L. L. Ma, L. Gong, N. Yu. Muchnoi, X. S. Kang, M. Richter, K. Schoenning, Q. Y. Li, B. S. Zou, L. G. Xia, A. Amoroso, Y. H. Zhang, Z. Ning, F. De Mori, A. Dbeyssi, X. Y. Zhou, T. Y. Qi, X. F. Wang, Q. M. Ma, A. Mustafa, Y. Yuan, Y. S. Zhu, Yu Zhang, M. Kornicer, Angelo Rivetti, X D Shi, A. Julin, P. Kiese, X. L. Ji, S. L. Olsen, Z. Y. Wang, M. Kuessner, Ke Wang, I. Uman, Y. X. Xia, Y. J. Mao, S. L. Yang, R. A. Briere, H. X. Yang, I. Garzia, G. S. Huang, M. Bertani, Z. Haddadi, Z. Y. Zhang, X. K. Zhou, G. R. Liao, X. S. Jiang, Z. J. Xiao, J. C. Li, R. Poling, P. F. Duan, F. H. Heinsius, J. Zhuang, H. Liang, S. B. Liu, Gianfranco Morello, L. Yang, P. L. Chen, Fenfen An, Yunlong Zhang, H. L. Liu, G. A. Chelkov, Q. P. Ji, B. Q. Wang, D. Bettoni, Y. Ding, J. L. Zhang, B. L. Wang, Z. X. Meng, M. X. Luo, Y. G. Xie, D. V. Dedovich, Xu Zhou, B. J. Liu, B. Garillon, Huihui Liu, Y. Nefedov, A. Pitka, T. C. Zhao, X. H. Liu, J. G. Messchendorp, K. Goetzen, Jianping Zheng, S. Zhu, X. A. Xiong, O. Cakir, Y. G. Gao, W. S. Cheng, Yao Zhang, G. Li, G. Y. Tang, Zhiqing Liu, Z. Gao, L. Koch, A. Khoukaz, J. P. Dai, H. B. Li, M. M. Ma, Qiunan Xu, Y. H. Xie, Xiaozhong Huang, W. Kühn, S. L. Niu, Z. L. Dou, S. X. Du, A. A. Zafar, K. Y. Liu, Z. Y. You, Manuel Lara, X. Q. Li, Y. F. Long, K. Ravindran, C. L. Luo, X. Xia, Q. Zhou, Jie Zhao, C. C. Zhang, D. X. Lin, T. Johansson, J. F. Chang, Alexey Zhemchugov, H. M. Hu, C. D. Fu, B. Zhong, L. B. Guo, R. Baldini Ferroli, C. Q. Feng, J. Pellegrino, Xiao-Rui Lyu, M. Maggiora, Ling Zhao, M. Destefanis, A. Q. Guo, C. W. Wang, Z. A. Zhu, Ke Liu, Y. T. Tan, Lei Li, Z. Y. Deng, M. Ripka, M.G. Alekseev, F. H. Liu, J. Q. Zhang, Krisztian Peters, W. Gradl, A. N. Zhu, Tao Zhang, X. Tang, Q. A. Malik, G. Mezzadri, W. C. Yan, Z. A. Liu, M. Kuemmel, Matthew Glenn Kurth, Bibo Ke, Y. F. Wang, Nicolas Berger, M. Z. Wang, O. B. Kolcu, M. G. Zhao, Y. H. Yang, W. B. Yan, V. Prasad, J. W. Zhang, L. M. Gu, M. N. Achasov, X. X. Ma, R. P. Guo, J. Zhu, L. P. Zhou, X. Cai, K. H. Rashid, Y. M. Ma, W. M. Song, Lei Zhao, Xu Shan, H. J. Lu, T. Holtmann, Andrzej Kupsc, D. Y. Wang, L. Lavezzi, A. Calcaterra, Z. G. Zhao, S. Fegan, J. G. Lu, Xingguo Li, M. Rolo, J. Min, Z. L. Hou, C. P. Shen, L. J. Wu, L. Z. Liao, Yu Bai, H. H. Zhang, Y. Ban, P. Weidenkaff, Z. J. Sun, S. Maldaner, F. E. Maas, T. Hu, Z. G. Wang, J. Chai, G. S. Varner, H. Y. Zhang, G. F. Chen, O. Bakina, H. B. Liu, B. Kopf, Y. T. Liang, S. J. Chen, Y. J. Mo, G. X. Sun, J. V. Bennett, Li Yan, Z. Jiao, D. H. Zhang, F. Cossio, Z. B. Li, W. Ikegami Andersson, C. Z. Yuan, X. P. Xu, X. B. Ji, M. Tiemens, P. Patteri, C. Sowa, Y. B. Zhao, K. J. Zhu, D. Y. Liu, J. B. Jiao, P. L. Wang, X. Q. Hao, S. Nakhoul, R. Kliemt, W. Shan, Dan Wang, S. Gu, X. N. Li, M. L. Chen, Haiping Peng, Tao Luo, Z. H. Qin, S. Pacetti, A. Mangoni, Meng Wang, Muhammad Irshad, S. P. Wen, A. Guskov, J. Y. Zhang, Jie Yu, W. G. Li, A. G. Denig, J. Y. Liu, X. S. Qin, P. Larin, J. F. Sun, K. L. He, S. W. Han, J. Dong, X. R. Zhou, P. X. Shen, Y. K. Sun, T. Hussain, X. Y. Ma, W. X. Gong, B. X. Yu, Xiaoyu Zhou, Ke Li, T. J. Min, Z. Wu, X. L. Gao, Zhi Zeng, Q. Gao, Y. N. Gao, Y. K. Heng, Jimin Zhao, G. F. Xu, S. Nisar, F. A. Harris, G. Cibinetto, S. Jin, S. Spataro, W. L. Chang, S. Marcello, Y. Zhang, P. L. Li, Y. Zeng, I. R. Boyko, S. J. Zhao, C. J. Tang, Y. Hu, Zhiqing Zhang, Fang Liu, Zhe Sun, Cheng Li, C. H. Li, X. H. Sun, Y. P. Lu, C. Dong, Shulei Zhang, F. Y. Li, S. Lusso, Liqing Xu, C. F. Redmer, S. Sosio, X. Y. Shen, H. Leithoff, L. H. Wu, H. M. Liu, U. Wiedner, I. Denysenko, Feng Yan, Q. J. Xu, H. S. Chen, Alperen Yuncu, J. Z. Fan, F. Li, M. Qi, M. Savrie, J. F. Hu, H. J. Yang, J. C. Chen, Xuanhong Lou, D. Xiao, Magnus Wolke, F. C. Ma, Y. B. Chen, S. Leiber, H. L. Dai, Nasser Kalantar-Nayestanaki, G. F. Cao, Y. F. Liang, Xiaofeng Zhu, J. Z. Zhang, Joachim Pettersson, Yi Jin, J. J. Song, B. Y. Zhang, C. Morales Morales, L. Sun, Yue Pan, D. P. Jin, J. W. Li, Jun-Yi Zhang, N. Qin, Y. J. Xiao, Z. P. Zhang, X. Y. Song, J. F. Qiu, M. Papenbrock, M. Y. Dong, X. N. Ma, L. Fava, D. W. Bennett, Zujian Wang, F. Nerling, A. Zallo, J. J. Xu, Yang Zhang, J. H. Zou, Z. Q. Yang, S. S. Sun, J. D. Lu, C. Schnier, Y. Q. Wang, X. T. Huang, G. Rong, R. Farinelli, R. E. Mitchell, M. Fritsch, J. S. Huang, M. Kavatsyuk, C. X. Liu, Lingxuan Zhang, S. Qian, Q. An, Jialun Ping, H. L. Ma, D. M. Li, K. Zhang, M. H. Gu, R. Kiuchi, X. Y. Zhang, H. Y. Sheng, H. Muramatsu, B. X. Zhang, C. X. Yu, T. Khan, J. B. Liu, B. Zheng, R. G. Ping, M. Pelizaeus, Y. J. Sun, Yifan Yang, E. Boger, S. Ahmed, Y. X. Yang, F. Feldbauer, Feng Liu, Q. Zhao, Y. Z. Sun, Z. P. Mao, C. X. Lin, M. Ablikim, X. Y. Jiang, J. Fang, Tao Li, Ch. Rosner, Alexander Leon Gilman, M. Rump, Gang Zhao, Zongyuan Wang, H. R. Qi, Y. P. Guo, Q. Ouyang, Serkant Ali Cetin, S. S. Fang, Y. B. Liu, X. L. Luo, K. Begzsuren, W. P. Wang, F. Bianchi, M. Albrecht, Huanhuan Liu, W. D. Li, B. T. Tsednee, G. Felici, Y. Fu, I. Tapan, I. B. Nikolaev, Y. H. Yan, J. W. Zhao, J. H. Yin, Y. C. Zhu, M. Shao, Y. T. Gu, H. J. Li, Q. L. Xiu, T. Held, Mario Greco, A. Sarantsev, D. H. Wei, P. R. Li, J. S. Lange, X. H. Mo, L. S. Wang, M. H. Ye, L. L. Wang, H. Cai, L. Y. Dong, W. J. Zheng, and J. Libby
Subjects: Physics, Annihilation, Luminosity (scattering theory), 010308 nuclear & particles physics, Electron–positron annihilation, media_common.quotation_subject, Detector, 01 natural sciences, Asymmetry, Nuclear physics, Amplitude, 0103 physical sciences, 010306 general physics, media_common
Abstract: We report the observation of W-annihilation decay Ds+→ωπ+ and evidence for Ds+→ωK+ in a data sample corresponding to an integrated luminosity of 3.19 fb-1 collected with the BESIII detector at a center-of-mass energy s=4.178 GeV. We obtain the branching fractions B(Ds+→ωπ+)=(1.77±0.32stat±0.13sys)×10-3 with a significance of 6.7σ and B(Ds+→ωK+)=(0.87±0.24stat±0.08sys)×10-3 with a significance of 4.4σ. This measurement provides critical information to determine the nonperturbative W-annihilation amplitudes and shows the potential of searching for CP asymmetry in Ds+→ωK+.
Published: 2019

5. Search for baryon and lepton number violation in J/ψ→Λc+e−+c.c

Author: Y. J. Mo, Z. X. Meng, X. A. Xiong, C. Sowa, Y. B. Zhao, W. Shan, A. A. Zafar, J. Dong, X. Q. Hao, Qiang Zhao, S. Nisar, C. J. Tang, K. H. Rashid, Y. Hu, Y. H. Zheng, R. Farinelli, Y. P. Lu, Y. T. Liang, A. Calcaterra, Z. G. Zhao, S. Fegan, Xichao Ruan, S. J. Chen, K. J. Li, Q. P. Ji, I. R. Boyko, P. Larin, Cong-Feng Qiao, H. L. Ma, P. L. Wang, D. M. Li, X. L. Luo, M. H. Gu, Liqing Xu, X. Y. Shen, N. Yu. Muchnoi, Yu Bai, X. S. Kang, Y. H. Zhang, H. H. Zhang, D. Xiao, H. Muramatsu, H. Y. Sheng, S. L. Olsen, W. P. Wang, Y. Ding, F. Bianchi, Z. J. Sun, Z. H. Wang, P. Musiol, Z. Y. Wang, C. Schnier, Y. Q. Wang, X. T. Huang, G. Rong, M. Pelizaeus, F. De Mori, C. X. Yu, L. Koch, A. Khoukaz, D. Y. Liu, B. J. Liu, J. F. Sun, X. Y. Zhou, B. Zheng, R. G. Ping, L. H. Wu, T. Holtmann, J. C. Li, M. Savrie, Zongyuan Wang, M. M. Ma, Yi Jin, Bibo Ke, W. Kühn, W. B. Yan, Z. Y. You, Z. A. Zhu, X. H. Mo, L. S. Wang, M. H. Ye, R. Baldini Ferroli, S. Marcello, Y. Zeng, X. K. Chu, Y. J. Xiao, J. Y. Liu, J. Zhuang, M. X. Luo, Q. Ouyang, Krisztian Peters, M. Z. Wang, Q. A. Malik, G. Mezzadri, W. C. Yan, X. H. Liu, Zhe Sun, S. Pacetti, J. P. Dai, X. F. Wang, L. L. Wang, H. Cai, G. Y. Tang, X. Q. He, P. Kiese, D. V. Dedovich, Z. Y. Qu, Q. M. Ma, S. S. Fang, Y. B. Liu, Q. Gao, J. Chai, Y. H. Xie, J. Pellegrino, X. N. Li, C. P. Shen, Y. N. Gao, A. Mustafa, G. X. Sun, J. V. Bennett, Li Yan, Peilian Liu, Z. Jiao, Haiping Peng, Manuel Lara, D. H. Zhang, Y. X. Zhou, Jie Zhao, D. X. Lin, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, Alexey Zhemchugov, H. M. Hu, X. Y. Niu, I. Tapan, S. B. Liu, Y. H. Yan, I. Uman, Y. Nefedov, R. A. Briere, Jun-Yi Zhang, Huanhuan Liu, G. Felici, Lingxuan Zhang, X. N. Ma, Z. P. Zhang, Y. Yuan, Y. S. Zhu, M. Maggiora, Ling Zhao, Lei Zhao, S. Ahmed, Y. X. Yang, Ke Li, Z. L. Hou, J. J. Song, Meng Wang, B. X. Yu, Zhi Zeng, L. Y. Dong, D. W. Bennett, Zujian Wang, F. H. Liu, Nicolas Berger, J. W. Zhang, L. Sun, Yunlong Zhang, Yu Zhang, Q. Liu, Tristan Weber, Kang Li, W. J. Zheng, R. Kliemt, H. J. Li, H. B. Li, Fang Liu, M. N. Achasov, A. Zallo, L. P. Zhou, C. L. Luo, X. Xia, M. Fritsch, Q. L. Xiu, Z. A. Liu, G. S. Huang, X. S. Jiang, C. C. Zhang, D. Bettoni, J. L. Zhang, B. Zhong, L. B. Guo, M. Kavatsyuk, F. A. Harris, S. Q. Zhang, Jie Yu, L. L. Ma, L. Gong, L. G. Xia, A. Amoroso, Y. M. Ma, Zhiqing Liu, F. Y. Li, H. S. Chen, Alperen Yuncu, Z. P. Mao, Y. X. Xia, V. Prasad, I. B. Nikolaev, X. K. Zhou, U. Wiedner, I. Denysenko, J. H. Yin, J. W. Zhao, Y. C. Zhu, H. L. Dai, Lei Li, Y. Z. Sun, Z. J. Xiao, P. L. Chen, H. Leithoff, F. Li, Y. Ban, P. Weidenkaff, B. X. Zhang, M. Shao, Y. T. Gu, A. Dbeyssi, Xiao-Rui Lyu, C. Z. Yuan, Jianping Zheng, A. Pitka, S. Zhu, T. Ma, F. C. Ma, T. J. Min, K. J. Zhu, G. Cibinetto, M. Kuhlmann, T. Johansson, J. F. Chang, Y. G. Gao, S. P. Wen, M. Kornicer, G. R. Liao, X. S. Qin, B. Y. Zhang, X. R. Zhou, J. Fang, Tao Li, Yao Wang, O. Cakir, Gang Zhao, E. Fioravanti, Cheng Li, J. F. Qiu, M. Papenbrock, A. Julin, B. Q. Wang, S. X. Du, M. G. Zhao, Y. H. Yang, R. P. Guo, J. Zhu, G. S. Varner, Ke Wang, K. Y. Liu, L. Fava, X. L. Kang, A. Sarantsev, D. H. Wei, P. R. Li, Y. F. Wang, T. Khan, O. B. Kolcu, F. Nerling, X. Fang, J. S. Lange, X. Cai, J. Q. Li, H. Xiao, F. Feldbauer, J. Z. Bai, Z. L. Huang, Yang Zhang, Feng Liu, M. Destefanis, M. Ablikim, X. Y. Jiang, Ch. Rosner, R. Poling, M. Kuessner, L. Lavezzi, P. F. Duan, F. H. Heinsius, Gianfranco Morello, T. Held, M. Kuemmel, Fenfen An, C. Hu, B. L. Wang, X. Tang, Magnus Wolke, X. L. Ji, T. C. Zhao, T. Hussain, M. Y. Dong, G. A. Chelkov, M. Rolo, Y. F. Liang, D. P. Jin, Z. Y. Zhang, X. Y. Ma, W. X. Gong, Dan Wang, Y. G. Xie, S. Gu, J. M. Bian, Z. L. Dou, S. J. Zhao, M. Richter, Z. Ning, H. Liang, X. P. Xu, X. B. Ji, M. Tiemens, M. Albrecht, W. D. Li, X. L. Gao, C. Dong, S. Sosio, B. T. Tsednee, Dayong Wang, N. Qin, P. Patteri, Joachim Pettersson, J. H. Zou, C. H. Li, Xiaozhong Huang, Q. J. Xu, X. H. Sun, S. S. Sun, J. C. Chen, Xuanhong Lou, Yao Zhang, Z. Gao, G. Li, S. L. Niu, Ke Liu, S. Leiber, Nasser Kalantar-Nayestanaki, X. Q. Li, Y. F. Long, C. D. Fu, C. Morales Morales, Yue Pan, R. E. Mitchell, Z. G. Wang, C. Q. Feng, X. R. Chen, Yaquan Fang, M. Greco, H. Y. Zhang, Shou-hua Zhu, Andrzej Kupsc, Z. Y. Deng, M. Ripka, Z. B. Li, M. L. Chen, W. Ikegami Andersson, G. F. Chen, Xingguo Li, J. Y. Zhang, K. Schoenning, Q. Y. Li, B. S. Zou, Y. K. Heng, G. F. Xu, S. Jin, X. Y. Song, K. Goetzen, L. D. Liu, J. J. Xu, J. S. Huang, C. X. Liu, A. Q. Guo, J. B. Jiao, W. M. Song, S. Qian, Q. An, Jialun Ping, K. Zhang, X. Y. Zhang, J. B. Liu, Y. J. Sun, Yifan Yang, E. Boger, H. R. Qi, Y. P. Guo, Serkant Ali Cetin, Z. H. Qin, W. G. Li, A. G. Denig, Y. K. Sun, S. Spataro, M. Qi, H. J. Yang, H. M. Liu, G. F. Cao, Y. J. Mao, H. X. Yang, I. Garzia, Huihui Liu, J. P. Liu, J. G. Messchendorp, Qiunan Xu, J. Min, H. B. Liu, B. Kopf, K. L. He, C. Leng, S. W. Han, Jimin Zhao, P. L. Li, C. F. Redmer, M. Bertani, Z. Haddadi, L. Yang, J. Q. Zhang, W. Gradl, D. Y. Wang, H. J. Lu, J. G. Lu, F. E. Maas, T. Hu, O. Bakina, P. X. Shen, Z. Wu, Zhiqing Zhang, and L. J. Wu
Subjects: Physics, Particle physics, 010308 nuclear & particles physics, Branching fraction, Electron, 01 natural sciences, Lepton number, law.invention, Baryon, Positron, law, 0103 physical sciences, 010306 general physics, Collider
Abstract: Using 1.31×109 J/ψ events collected by the BESIII detector at the Beijing Electron Positron Collider, we search for the process J/ψ→Λc+e-+c.c. for the first time. In this process, both baryon and lepton number conservation is violated. No signal is found and the upper limit on the branching fraction B(J/ψ→Λc+e-+c.c.) is set to be 6.9×10-8 at the 90% confidence level.
Published: 2019

6. Precision measurements of the e+e−→KS0K±π∓ Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV

Author: S. Ahmed, Y. X. Yang, Kang Li, J. F. Qiu, M. Papenbrock, Xichao Ruan, Ke Wang, L. Fava, Y. H. Zheng, Cong-Feng Qiao, N. Yu. Muchnoi, M. H. Gu, H. Y. Sheng, M. Bertani, Z. Haddadi, L. Yang, R. Poling, P. F. Duan, F. H. Heinsius, Gianfranco Morello, Fenfen An, B. L. Wang, Y. Z. Sun, F. Nerling, X. Q. Hao, S. Nakhoul, F. De Mori, M. H. Ye, C. X. Yu, T. C. Zhao, Q. A. Malik, G. Mezzadri, W. C. Yan, Yang Zhang, H. B. Li, X. S. Kang, Y. H. Zhang, S. L. Olsen, M. Kuessner, L. D. Liu, S. B. Liu, L. Koch, A. Khoukaz, B. X. Yu, M. Kuemmel, P. Larin, C. L. Luo, Zhi Zeng, F. Y. Li, X. Y. Zhou, H. S. Chen, Alperen Yuncu, X. Xia, B. Zheng, H. L. Dai, R. Baldini Ferroli, Gang Zhao, L. Y. Dong, R. G. Ping, Zhiqing Liu, M. G. Zhao, Y. H. Yang, Z. Y. Wang, Krisztian Peters, M. Z. Wang, T. Khan, Y. Nefedov, X. N. Li, Z. P. Zhang, Y. T. Tan, R. P. Guo, M. N. Achasov, J. Zhu, L. P. Zhou, Haiping Peng, Y. M. Ma, S. Qian, Q. An, Jialun Ping, C. C. Zhang, B. Zhong, L. B. Guo, Lei Li, Y. Ding, W. Gradl, G. A. Chelkov, Huanhuan Liu, D. Y. Wang, D. W. Bennett, Zujian Wang, B. J. Liu, Z. A. Liu, G. Y. Tang, Z. P. Mao, J. Fang, Tao Li, W. J. Zheng, T. Johansson, J. F. Chang, J. Min, J. J. Xu, K. Zhang, X. L. Ji, X. Y. Zhang, H. B. Liu, J. B. Liu, F. Feldbauer, Manuel Lara, O. B. Kolcu, T. Ma, W. G. Li, X. F. Wang, Jie Zhao, D. X. Lin, V. Prasad, Z. X. Meng, B. Kopf, Dan Wang, Xu Shan, X. H. Liu, R. Farinelli, A. G. Denig, Y. Ban, Y. J. Sun, Yifan Yang, W. Kühn, J. C. Li, E. Boger, P. Weidenkaff, Ch. Rosner, S. Gu, J. P. Dai, J. Libby, Yaquan Fang, Alexey Zhemchugov, H. M. Hu, Y. H. Xie, J. Pellegrino, X. A. Xiong, F. H. Liu, X. Cai, L. Lavezzi, K. L. He, J. S. Huang, C. X. Liu, S. W. Han, G. Felici, S. P. Wen, M. Maggiora, Ling Zhao, R. Kliemt, I. B. Nikolaev, Lei Zhao, Z. L. Hou, G. R. Liao, Z. Y. Zhang, Z. Y. You, Z. A. Zhu, J. M. Zhang, Jimin Zhao, P. L. Li, J. Zhuang, H. L. Ma, M. X. Luo, D. M. Li, B. Q. Wang, Shou-hua Zhu, D. V. Dedovich, H. Muramatsu, M. Pelizaeus, Y. K. Sun, S. Spataro, M. Richter, Z. Ning, C. F. Redmer, K. Schoenning, Q. Y. Li, B. S. Zou, X. S. Qin, X. R. Zhou, Y. P. Lu, Cheng Li, Y. G. Xie, C. P. Shen, Q. M. Ma, J. F. Sun, Nicolas Berger, J. W. Zhang, S. Marcello, C. Sowa, Y. B. Zhao, J. H. Yin, M. Shao, Y. T. Gu, J. Q. Zhang, H. J. Lu, P. L. Wang, C. Z. Yuan, T. Holtmann, L. J. Wu, J. G. Lu, A. Mustafa, X. Y. Niu, Meng Wang, A. A. Zafar, E. Fioravanti, X. K. Chu, M. Qi, Y. Zeng, Zhe Sun, S. Lusso, H. Liang, H. J. Yang, J. Y. Liu, Q. P. Ji, M. Kuhlmann, Z. L. Dou, W. Shan, J. Dong, Y. J. Mo, X. K. Zhou, H. M. Liu, F. E. Maas, Z. L. Huang, K. H. Rashid, T. Hu, Feng Liu, M. Ablikim, X. Y. Jiang, Y. Yuan, Y. S. Zhu, T. Y. Qi, A. Calcaterra, Z. G. Zhao, S. Fegan, Yu Zhang, A. Sarantsev, D. H. Wei, P. R. Li, J. S. Lange, G. F. Xu, H. J. Li, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, Qiang Zhao, S. Nisar, S. Jin, J. J. Song, Q. L. Xiu, A. Guskov, O. Bakina, L. Sun, J. F. Hu, Xiao-Rui Lyu, F. A. Harris, C. J. Tang, Y. Hu, Yu Bai, H. H. Zhang, Y. X. Xia, Lingxuan Zhang, Ke Liu, P. X. Shen, Z. J. Sun, H. Leithoff, Y. T. Liang, Q. Gao, D. Xiao, Z. Gao, Z. Wu, H. R. Qi, X. Y. Song, Q. Liu, G. S. Varner, Y. N. Gao, I. R. Boyko, T. J. Min, K. J. Zhu, S. J. Chen, Y. Zhang, X. H. Mo, L. S. Wang, S. L. Niu, G. F. Cao, M. M. Ma, Y. X. Zhou, Y. G. Gao, Liqing Xu, K. Goetzen, Zhiqing Zhang, G. Cibinetto, X. Y. Shen, K. J. Li, Tristan Weber, Yao Wang, L. L. Ma, J. Z. Fan, L. Gong, Y. P. Guo, L. L. Wang, H. Cai, J. Chai, X. Q. Li, G. X. Sun, J. V. Bennett, Li Yan, X. N. Ma, Z. Jiao, D. H. Zhang, A. Zallo, X. L. Luo, L. G. Xia, A. Amoroso, X. P. Xu, X. B. Ji, M. Tiemens, M. Fritsch, P. Patteri, C. Schnier, Y. Q. Wang, M. Kavatsyuk, X. T. Huang, G. Rong, Y. F. Long, M. Alekseev, Yao Zhang, G. Li, W. P. Wang, B. X. Zhang, Serkant Ali Cetin, F. Bianchi, L. H. Wu, C. D. Fu, M. Savrie, A. Q. Guo, Yi Jin, A. Dbeyssi, C. Q. Feng, X. R. Chen, Y. J. Xiao, D. Y. Liu, J. B. Jiao, M. Kornicer, Zongyuan Wang, A. Julin, Q. Ouyang, S. S. Fang, W. M. Song, Y. B. Liu, K. Y. Liu, Z. H. Qin, Z. B. Li, W. Ikegami Andersson, Y. F. Wang, X D Shi, Y. J. Mao, H. X. Yang, T. Hussain, X. Y. Ma, I. Garzia, W. X. Gong, B. Garillon, Huihui Liu, J. G. Messchendorp, Qiunan Xu, C. H. Li, X. H. Sun, P. Kiese, R. A. Briere, G. S. Huang, X. S. Jiang, A. Pitka, O. Cakir, M. Y. Dong, I. Tapan, Y. H. Yan, J. W. Zhao, J. H. Zou, S. S. Sun, Y. C. Zhu, T. Held, Mario Greco, R. E. Mitchell, Bibo Ke, M. Albrecht, W. B. Yan, W. D. Li, B. T. Tsednee, S. Pacetti, Ke Li, Fang Liu, U. Wiedner, I. Denysenko, Xiaozhong Huang, B. Y. Zhang, Andrzej Kupsc, M. L. Chen, Magnus Wolke, Y. F. Liang, D. P. Jin, Dayong Wang, N. Qin, I. Uman, Z. J. Xiao, P. L. Chen, Yunlong Zhang, D. Bettoni, J. L. Zhang, Jianping Zheng, S. Zhu, S. X. Du, M. Destefanis, X. L. Gao, C. Dong, S. Sosio, S. J. Zhao, Joachim Pettersson, Q. J. Xu, X. Tang, J. C. Chen, Xuanhong Lou, M. Rolo, S. Leiber, Nasser Kalantar-Nayestanaki, C. Morales Morales, Yue Pan, F. Cossio, Z. G. Wang, H. Y. Zhang, G. F. Chen, J. Y. Zhang, Y. K. Heng, Z. Y. Deng, M. Ripka, Xingguo Li, F. Li, and F. C. Ma
Subjects: Nuclear physics, Physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Detector, Pi, Measure (physics), Center of mass, Born approximation, 010306 general physics, 01 natural sciences, Storage ring
Abstract: Using data samples collected by the BESIII detector operating at the BEPCII storage ring, we measure the e+e- → K0SK±π∓ Born cross sections at center-of-mass energies between 3.8 and 4.6 GeV, corre ...
Published: 2019

7. Precision Measurement of the Branching Fractions of <math><mrow><msup><mrow><mi>η</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow></math> Decays

Author: Y. B. Zhao, J. Dong, L. Koch, A. Khoukaz, S. Nisar, M. Kuemmel, Matthew Glenn Kurth, W. Shan, D. Y. Liu, J. B. Jiao, R. Baldini Ferroli, C. J. Tang, Y. Hu, Y. P. Lu, Z. A. Liu, S. J. Zhao, P. Kiese, H. J. Lu, J. G. Lu, M. Qi, J. J. Xu, Z. Q. Yang, F. E. Maas, T. Hu, O. Bakina, P. X. Shen, Z. Wu, Zhiqing Zhang, D. Xiao, Q. J. Xu, J. C. Chen, Xuanhong Lou, S. Leiber, Nasser Kalantar-Nayestanaki, Z. X. Meng, X. A. Xiong, Huanhuan Liu, T. Khan, G. Felici, Q. Liu, H. J. Yang, I. Uman, J. S. Huang, C. X. Liu, X. N. Li, Haiping Peng, J. Libby, R. Kliemt, Guangshun Huang, X. L. Ji, A. A. Zafar, Y. Ding, X. Y. Jiang, M. M. Ma, R. A. Briere, X. S. Jiang, Ke Wang, A. Mangoni, L. Yan, M. Kuessner, C. Morales Morales, K. H. Rashid, Z. G. Wang, H. Y. Zhang, Haiwen Liu, F. Feldbauer, A. Guskov, Jie Yu, L. L. Ma, L. Gong, Y. Ban, P. Weidenkaff, F. H. Heinsius, J. C. Li, J. Zhuang, M. X. Luo, D. V. Dedovich, S. Nakhoul, P. Larin, S. F. Zhang, Yaquan Fang, M. Albrecht, Y. T. Liang, W. Imoehl, Y. G. Xie, Z. L. Huang, S. J. Chen, Feng Liu, P. L. Wang, G. F. Xu, M. Ablikim, Y. Pan, Xu Zhou, Krisztian Peters, B. J. Liu, A. Pitka, G. F. Chen, A. Amoroso, K. J. Li, P. F. Duan, S. X. Du, Muhammad Irshad, K. J. Zhu, J. Chai, Fenfen An, V. Prasad, Z. L. Dou, S. Han, W. D. Li, B. L. Wang, G. X. Sun, J. V. Bennett, S. P. Wen, X. R. Zhou, T. Y. Qi, W. Kühn, S. L. Yang, Zhiqing Liu, G. Cibinetto, A. Dbeyssi, R. Farinelli, J. Y. Zhang, T. C. Zhao, G. A. Chelkov, H. J. Li, P. W. Luo, Z. Jiao, Fu-Hu Liu, D. H. Zhang, G. R. Liao, Cheng Li, Y. X. Xia, S. H. Zhu, L. H. Wu, K. Schoenning, Q. Y. Li, B. S. Zou, Z. Y. You, Z. A. Zhu, H. B. Li, A. G. Denig, C. L. Luo, S. Qian, Q. An, Jialun Ping, K. Zhang, X. Xia, Q. Zhou, B. T. Tsednee, T. Johansson, M. Savrie, J. F. Chang, Niklaus Berger, Xiao-Rui Lyu, Q. A. Malik, F. A. Harris, W. L. Chang, Q. L. Xiu, X. N. Ma, H. Leithoff, Yi Jin, H. H. Wang, S. B. Liu, Stephen Lars Olsen, H. L. Ma, Y. H. Xie, J. Pellegrino, T. Weber, J. W. Li, L. Xia, Y. Zhang, Tao Luo, D. M. Li, C. C. Zhang, G. Mezzadri, X. Y. Zhang, B. Zhong, L. B. Guo, Y. J. Xiao, Angelo Rivetti, F. Li, F. C. Ma, Y. G. Gao, L. K. Li, Zongyuan Wang, Jun-Yi Zhang, Y. P. Guo, Y. F. Wang, Y. H. Zheng, Cong-Feng Qiao, O. B. Kolcu, J. L. Zhang, F. F. Sui, L. Zhang, C. P. Shen, Y. Nefedov, Bibo Ke, X. H. Mo, L. S. Wang, J. B. Liu, M. Maggiora, Ling Zhao, W. M. Song, H. Muramatsu, A. N. Zhu, Ulrich Wiedner, N. Yu. Muchnoi, Tao Zhang, Y. J. Sun, Yifan Yang, L. M. Gu, G. Y. Tang, X. Cai, L. Lavezzi, L. P. Zhou, B. Wang, B. X. Yu, Y. M. Ma, Z. P. Zhang, M. H. Ye, X. B. Ji, M. Tiemens, M. H. Gu, R. Kiuchi, X. S. Kang, F. De Mori, W. B. Yan, H. Y. Sheng, Z. P. Mao, L. J. Wu, Jie Zhao, D. X. Lin, J. F. Sun, R. X. Yang, Y. H. Zhang, Xu Shan, Lei Zhao, Z. L. Hou, Alexey Zhemchugov, H. M. Hu, C. F. Redmer, J. F. Qiu, L. Fava, P. Patteri, P. L. Chen, D. W. Bennett, Zujian Wang, X. Q. Hao, Y Q Wang, Z. Y. Wang, Y. H. Yan, Q. Ouyang, C. X. Yu, Y. Bai, M. N. Achasov, Meng Wang, X. Y. Zhou, M. Kavatsyuk, J. Fang, Tao Li, M. Pelizaeus, L. L. Wang, H. Cai, H. S. Chen, A. Calcaterra, Z. G. Zhao, H. L. Dai, Igor Boyko, X. T. Huang, Michael Papenbrock, Bingxuan Liu, F. Yan, S. Marcello, B. Zheng, R. G. Ping, J. Min, Y. Zeng, L. Z. Liao, M. Richter, Z. Ning, S. S. Fang, W. S. Cheng, J. W. Zhao, Yao Zhang, G. Li, T. Hussain, Yang Zhang, X. Y. Ma, Y. C. Zhu, W. X. Gong, Zhe Sun, S. Lusso, H. H. Zhang, Z. Gao, S. Pacetti, A. Gilman, B. X. Zhang, X. Liu, M. Alekseev, H. R. Qi, Ch. Rosner, Z. J. Sun, C. D. Fu, J. Y. Liu, Y. B. Liu, Z. J. Xiao, B. Kopf, X. F. Wang, S. Maldaner, C. Q. Feng, X. R. Chen, X. K. Chu, Z. Y. Deng, Y. K. Heng, Cui Li, C. Z. Yuan, L. D. Liu, Y. B. Chen, Xingguo Li, L. Y. Dong, K. L. He, X. H. Sun, H. Liang, Xiaofeng Zhu, J. Z. Zhang, M. Z. Wang, Q. M. Ma, J. F. Hu, A. Mustafa, Zhiyong Zhang, X. L. Luo, J. J. Song, L. Sun, E. Boger, T. Held, Serkant Ali Cetin, W. J. Zheng, Ke Li, Jimin Zhao, P. L. Li, J. Q. Zhang, S. L. Niu, F. Nerling, Q. Gao, Y. N. Gao, M. Fritsch, F. Y. Li, X. Q. Li, Y. F. Long, M. Greco, M. Bertani, Z. Haddadi, K. Begzsuren, L. Yang, Magnus Wolke, Y. F. Liang, D. P. Jin, K. Y. Liu, Jianhao Zhang, M. Y. Dong, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, I. B. Nikolaev, M. G. Zhao, Y. H. Yang, J. H. Yin, R. P. Guo, J. Zhu, Y. T. Tan, F. Bianchi, W. Gradl, M. Ripka, Dayong Wang, N. Qin, Ke Liu, D. Y. Wang, J. Z. Fan, M. Shao, Y. T. Gu, Xiaozhong Huang, Andrzej Kupsc, S. Ahmed, H. B. Liu, M. L. Chen, Y. X. Yang, A. Sarantsev, D. H. Wei, P. R. Li, J. S. Lange, Kang Li, J. H. Zou, Q. Zhao, S. S. Sun, Y. Z. Sun, Xiang Zhou, I. K. Keshk, X. S. Qin, Niu Xiaoyang, C. X. Lin, Gang Zhao, R. E. Mitchell, X. K. Zhou, Fang Liu, I. Denysenko, W. C. Yan, B. Y. Zhang, Y. Yuan, Y. S. Zhu, Yu Zhang, A. Q. Guo, Z. Y. Peng, C. W. Wang, G. Rong, W. P. Wang, Z. H. Qin, X D Shi, Y. J. Mao, H. X. Yang, I. Garzia, Y. J. Mo, Q. P. Ji, Liqing Xu, X. Y. Shen, B. Garillon, Huihui Liu, J. G. Messchendorp, J. P. Dai, W. G. Li, X. Tang, Y. K. Sun, Xiaoyu Zhou, S. Spataro, X. P. Xu, A. Yuncu, M. Rolo, Lei Li, G. F. Cao, F. Cossio, Yunlong Zhang, H. L. Liu, D. Bettoni, R. Poling, H. L. Jiang, Jianping Zheng, S. Zhu, T. J. Min, X. Y. Song, M. Destefanis, X. L. Gao, Shan Jin, K. Goetzen, C. Dong, S. Sosio, Joachim Pettersson, C. Sowa, and İstanbul Arel Üniversitesi
Subjects: Physics, Branching fraction, Electron–positron annihilation, ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS, General Physics and Astronomy, Branching (polymer chemistry), 01 natural sciences, High Energy Physics - Experiment, NO, Crystallography, ComputingMilieux_MANAGEMENTOFCOMPUTINGANDINFORMATIONSYSTEMS, ComputingMethodologies_PATTERNRECOGNITION, 0103 physical sciences, ddc:530, InformationSystems_MISCELLANEOUS, 010306 general physics
Abstract: PubMed ID: 31050481, Based on a sample of (1310.6±7.0)×106J/? events collected with the BESIII detector, we present measurements of J/? and ?? absolute branching fractions using the process J/?????. By analyzing events where the radiative photon converts into an e+e-pair, the branching fraction for J/????? is measured to be (5.27±0.03±0.05)×10-3. The absolute branching fractions of the five dominant decay channels of the ?? are then measured for the first time and are determined to be B(?????+?-)=(29.90±0.03±0.55)%, B(?????+?-)=(41.24±0.08±1.24)%, B(?????0?0)=(21.36±0.10±0.92)%, B(?????)=(2.489±0.018±0.074)%, and B(?????)=(2.331±0.012±0.035)%, where the first uncertainties are statistical and the second systematic. © 2019 authors. Published by the American Physical Society.
Published: 2019

8. Observation ofχcJ→4KS0

Author: D. Y. Liu, J. B. Jiao, Z. X. Meng, X. A. Xiong, C. Dong, S. Sosio, J. Y. Liu, H. H. Liu, Wu L. H., A. A. Zafar, Y. H. Xie, J. Pellegrino, F. E. Maas, T. Hu, Y. Yang, J. Zhuang, M. X. Luo, D. V. Dedovich, C. Sowa, Y. B. Zhao, F. Li, Li J. C., W. Shan, K. H. Rashid, A. Calcaterra, Z. G. Zhao, S. Fegan, Xu Q. J., L. Z. Liao, Yu Bai, H. H. Zhang, Joachim Pettersson, Z. J. Sun, S. Maldaner, Q. Gao, Y. N. Gao, Y. Zhang, Huanhuan Liu, Feng Yan, M. Y. Dong, Y. H. Zheng, Cong-Feng Qiao, M. Maggiora, Z. L. Hou, J. Dong, Gu L. M., O. Bakina, C. L. Luo, Y. T. Liang, R. Kliemt, G. Felici, Y. H. Yan, A. Mangoni, X. Xia, Q. Zhou, I. Uman, J. W. Zhao, T. Khan, Tao Luo, C. C. Zhang, B. Zhong, L. B. Guo, A. N. Zhu, Xu G. F., X. S. Kang, Tao Zhang, Yunlong Zhang, Q. A. Malik, G. Mezzadri, W. C. Yan, J. H. Zou, Ye M. H., Xu Shan, S. Nisar, Y. H. Zhang, D. Bettoni, Z. G. Wang, Y. C. Zhu, J. L. Zhang, H. L. Jiang, S. J. Chen, C. J. Tang, Y. Hu, Y. P. Lu, A. Guskov, Qi T. Y., Jianping Zheng, F. De Mori, S. L. Olsen, J. F. Qiu, M. Papenbrock, L. Fava, Z. J. Xiao, P. L. Chen, Li X. Q., S. Zhu, M. Qi, Ji Q. P., J. F. Sun, S. B. Liu, T. J. Min, K. J. Zhu, Shulei Zhang, S. Qian, Q. An, Jialun Ping, F. Feldbauer, He K. L., Y. Nefedov, K. J. Li, X. Y. Zhou, H. Y. Zhang, S. S. Sun, Z. L. Huang, M. N. Achasov, L. P. Zhou, Z. Y. Wang, K. Zhang, Liangbin Li, X. Y. Zhang, G. Cibinetto, K. Y. Liu, H. S. Chen, Alperen Yuncu, P. X. Shen, Z. Wu, C. Z. Yuan, F. Nerling, H. J. Yang, G. F. Chen, J. Y. Zhang, D. Xiao, Z. P. Mao, M. Ablikim, Q. L. Xiu, T. Held, Mario Greco, P. W. Luo, H. L. Dai, S. Marcello, Y. Ding, X. Y. Jiang, B. J. Liu, Ma X. N., M. Destefanis, J. B. Liu, Zhiqing Zhang, R. E. Mitchell, X. H. Liu, Y. J. Sun, E. Boger, P. L. Wang, X. F. Wang, S. Jin, M. Kuessner, Y. Zeng, Zhe Sun, S. Lusso, W. Kühn, Mo Y. J., X. L. Luo, Ji X. B., X. Tang, Z. Y. You, Z. A. Zhu, A. Mustafa, Li X. L., Ke Wang, Fang Liu, J. P. Dai, J. Fang, Tao Li, X. Y. Niu, Fu C. D., J. L. Hu, Y. K. Heng, K. Begzsuren, W. P. Wang, X. T. Huang, G. A. Chelkov, Y. Yuan, Y. S. Zhu, C. P. Shen, U. Wiedner, Ma H. L., F. Bianchi, M. Rolo, I. Denysenko, Xu X. P., M. Richter, S. J. Zhao, G. Rong, R. Poling, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, P. F. Duan, F. H. Heinsius, M. Albrecht, Yu J. S., Z. Ning, Rinaldo Baldini Ferroli, Q. Liu, Tristan Weber, Li P. L., J. J. Song, B. L. Wang, Li H. B., J. Chai, X D Shi, G. X. Sun, J. V. Bennett, Li Yan, Li P. R., Ma L. L., L. Gong, B. Y. Zhang, L. Sun, L. G. Xia, Qi H. R., B. T. Tsednee, Gu M. H., J. C. Chen, Xuanhong Lou, M. Tiemens, X. K. Zhou, Ke B. C., A. Amoroso, Q. P. Ji, S. Leiber, Wu L. J., T. C. Zhao, A. Dbeyssi, Gu Y. T., I. R. Boyko, Nasser Kalantar-Nayestanaki, F. Cossio, J. Min, Muhammad Irshad, Magnus Wolke, Z. Jiao, D. H. Zhang, M. Savrie, X. Y. Song, Liqing Xu, X. Y. Shen, C. Morales Morales, Y. J. Mao, H. X. Yang, I. Garzia, Yue Pan, Li J. W., Ma Y. M., H. B. Liu, Y. F. Liang, M. Kornicer, Angelo Rivetti, P. Patteri, Lu J. G., Li Q. Y., Yi Jin, Hu H. M., Y. P. Guo, L. D. Liu, C.-H. Rosner, B. Kopf, Ma X. Y., D. P. Jin, A. Julin, Yu B. X., J. Libby, Qu S. Q., Yu C. X., J. Q. Zhang, T. Johansson, J. F. Chang, Li D. M., L. Koch, A. Khoukaz, Y. F. Wang, Y. J. Xiao, Ma M. M., S. W. Han, O. B. Kolcu, F. A. Harris, W. L. Chang, Du S. X., Yaquan Fang, M. G. Zhao, Y. H. Yang, X. Cai, R. P. Guo, J. Zhu, L. Lavezzi, Shou-hua Zhu, Serkant Ali Cetin, Jun-Yi Zhang, W. B. Yan, M. Fritsch, Q. Ouyang, M. Alekseev, Li W. G., N. Qin, H. Leithoff, Jimin Zhao, M. Kavatsyuk, Z. Q. Yang, Li K. J., W. S. Cheng, S. S. Fang, S. Pacetti, G. Li, Li H. J., Xiaozhong Huang, S. L. Yang, C. F. Redmer, Li X. N., Z. P. Zhang, B. X. Zhang, Krisztian Peters, Y. B. Liu, M. Bertani, Z. Haddadi, L. Yang, M. Z. Wang, B. Garillon, G. R. Liao, C. Q. Feng, X. R. Chen, Andrzej Kupsc, K. Schoenning, J. S. Huang, Z. Y. Deng, Lu Y. P., D. W. Bennett, B. S. Zou, Y. T. Tan, W. Gradl, M. Ripka, Z. Liu, M. L. Chen, Haiping Peng, B. Q. Wang, C. X. Liu, Zujian Wang, D. Y. Wang, J. G. Messchendorp, He X. Q., H. Liang, M. Kuemmel, Matthew Glenn Kurth, Ma Q. M., Li W. D., K. Goetzen, L. Zhao, Dan Wang, A. Q. Guo, Z. Y. Peng, C. W. Wang, Xiao-Rui Lyu, N. Y.-U. Muchnoi, W. M. Song, X. Q. Hao, S. Nakhoul, P. Larin, An F. F., Z. H. Qin, G. Y. Tang, Z. Y. Zhang, A. G. Denig, Jie Zhao, D. X. Lin, R. Farinelli, Y. K. Sun, Alexey Zhemchugov, S. Spataro, F. H. Liu, Nicolas Berger, Li F. Y., Y. G. Xie, J. W. Zhang, H. Muramatsu, M. Pelizaeus, S. Ahmed, Y. X. Yang, H. M. Liu, Li Z. B., Z. L. Dou, Q. Zhao, Y. Z. Sun, I. K. Keshk, C. X. Lin, Alexander Leon Gilman, Gang Zhao, G. F. Cao, Y. X. Xia, Xu J. J., Ji X. L., Y. G. Gao, L. S. Wang, M. H. Ye, L. L. Wang, H. Cai, X. K. Chu, Mo X. H., L. Y. Dong, W. J. Zheng, I. B. Nikolaev, J. H. Yin, Lu H. J., M. Shao, Lingxuan Zhang, A. Sarantsev, D. H. Wei, J. S. Lange, Ma F. C., F. F. Sui, R. Kiuchi, H. Y. Sheng, B. Zheng, R. G. Ping, Z. A. Liu, V. Prasad, Y. Ban, P. Weidenkaff, S. P. Wen, X. S. Qin, X. R. Zhou, P. Kiese, R. A. Briere, G. S. Huang, X. S. Jiang, R. X. Yang, H. H. Wang, A. Pitka, Z. Gao, S. L. Niu, Y. F. Long, W. Ikegami Andersson, T. Hussain, W. X. Gong, C. H. Li, X. H. Sun, and X. L. Gao
Subjects: Physics, Particle physics
Published: 2019

9. Determination of the Pseudoscalar Decay Constant fDs+ via Ds+→μ+νμ

Author: M. Richter, Z. Ning, S. J. Zhao, J. L. Zhang, J. Libby, M. H. Gu, Yaquan Fang, A. Pitka, H. Y. Sheng, C. X. Yu, W. G. Li, Q. J. Xu, F. De Mori, Y. K. Sun, Shan Jin, J. C. Chen, Xuanhong Lou, I. Uman, Q. P. Ji, S. Spataro, X. P. Xu, K. Goetzen, S. Leiber, Nasser Kalantar-Nayestanaki, K. Schoenning, Q. Y. Li, B. S. Zou, B. Zheng, R. G. Ping, Y. H. Zheng, Cong-Feng Qiao, Lei Li, C. Morales Morales, S. Nakhoul, Niklaus Berger, G. F. Cao, N. Yu. Muchnoi, Meng Wang, X. Y. Zhou, H. B. Li, A. G. Denig, C. L. Luo, M. Bertani, X. Xia, Q. Zhou, A. Q. Guo, C. W. Wang, G. Rong, Q. A. Malik, G. Mezzadri, X. S. Kang, Y. H. Zhang, Bingxuan Liu, X D Shi, Y. J. Mao, Z. Haddadi, X. K. Zhou, W. P. Wang, C. C. Zhang, B. Zhong, L. B. Guo, H. X. Yang, Z. H. Qin, L. Yang, I. Garzia, Fang Liu, P. Larin, Yao Zhang, G. Li, X. F. Wang, L. M. Gu, L. P. Zhou, Q. M. Ma, X. Y. Jiang, I. Denysenko, W. C. Yan, X. L. Gao, B. Garillon, Huihui Liu, J. G. Messchendorp, J. P. Dai, Z. T. Sun, Y. M. Ma, Z. Y. Wang, A. Gilman, C. D. Fu, A. Mustafa, Y. T. Tan, C. Dong, H. Muramatsu, A. N. Zhu, L. J. Wu, S. Qian, Q. An, Jialun Ping, Z. P. Mao, Qiunan Xu, C. Q. Feng, Z. Y. Deng, B. Y. Zhang, Y. Yuan, Y. S. Zhu, Yu Zhang, S. Sosio, Ulrich Wiedner, Tao Zhang, M. Kornicer, G. Y. Tang, W. Gradl, M. Ripka, D. Y. Wang, K. Zhang, X. Y. Zhang, J. Fang, Tao Li, Xingguo Li, Joachim Pettersson, Kai Liu, Q. Liu, R. Farinelli, Z. Gao, M. Qi, H. J. Yang, M. Lara, J. B. Liu, Y. Ban, P. Weidenkaff, F. H. Heinsius, R. Kliemt, Jie Zhao, D. X. Lin, M. M. Ma, Y. J. Mo, Alexey Zhemchugov, H. M. Hu, Xu Shan, L. L. Ma, L. Gong, X. Tang, A. Mangoni, A. Guskov, A. Amoroso, Ch. Rosner, S. P. Wen, M. G. Zhao, Y. H. Yang, X. X. Ma, Bibo Ke, J. Zhu, J. C. Li, Y. J. Sun, Yifan Yang, A. Yuncu, M. Rolo, W. B. Yan, S. B. Liu, Y. Zhang, A. Dbeyssi, M. N. Achasov, L. Zhang, Z. G. Wang, H. Y. Zhang, Y. P. Lu, K. J. Zhu, B. X. Yu, Zhi Zeng, X. R. Zhou, J. Zhuang, H. L. Ma, Cheng Li, Haiwen Liu, S. Pacetti, Y. Nefedov, J. Min, M. Alekseev, F. Cossio, G. Cibinetto, D. M. Li, Y. H. Xie, J. Pellegrino, A. Julin, M. X. Luo, G. F. Xu, I. B. Nikolaev, G. F. Chen, H. Liang, B. Kopf, Ke Li, K. L. He, D. V. Dedovich, T. Y. Qi, J. Y. Zhang, M. Y. Dong, M. Z. Wang, Y. Pan, Jimin Zhao, P. L. Li, M. Pelizaeus, Yunlong Zhang, M. Maggiora, Ling Zhao, H. B. Liu, J. H. Zou, Y. X. Xia, S. H. Zhu, H. L. Liu, J. Chai, D. Y. Liu, D. Bettoni, Cui Li, H. S. Chen, W. M. Song, S. S. Sun, M. Fritsch, X. B. Ji, M. Tiemens, J. B. Jiao, Liqing Xu, X. Y. Shen, P. Patteri, R. Poling, Jianping Zheng, S. Zhu, X. S. Qin, G. X. Sun, J. V. Bennett, Y. Ding, Jianhao Zhang, J. H. Yin, X. Y. Song, B. J. Liu, T. J. Min, Lei Zhao, R. E. Mitchell, Y. K. Heng, Ke Liu, H. L. Dai, Igor Boyko, M. Destefanis, W. Kühn, Z. L. Hou, Z. Y. You, Z. A. Zhu, J. J. Xu, T. Weber, L. Koch, A. Khoukaz, Z. Jiao, Fu-Hu Liu, D. H. Zhang, A. Calcaterra, Z. G. Zhao, S. Fegan, H. J. Lu, J. G. Lu, C. P. Shen, R. Baldini Ferroli, X. Liu, H. R. Qi, J. S. Huang, M. Shao, Y. T. Gu, C. X. Liu, L. Z. Liao, Serkant Ali Cetin, C. F. Redmer, J. D. Lu, X. N. Li, Haiping Peng, Ke Wang, F. E. Maas, T. Hu, P. F. Duan, Xiao-Rui Lyu, H. H. Zhang, Gianfranco Morello, Fenfen An, B. L. Wang, T. C. Zhao, J. F. Hu, C. Schnier, Z. J. Sun, O. Bakina, Jun-Yi Zhang, Y. P. Guo, Zhiyong Zhang, C. Z. Yuan, P. X. Shen, Z. Wu, Z. P. Zhang, Zhiqing Zhang, X. T. Huang, P. L. Chen, Guangshun Huang, L. Yan, D. W. Bennett, M. Kuessner, Zujian Wang, V. Prasad, S. Han, Y. Bai, G. A. Chelkov, L. H. Wu, M. Savrie, Yi Jin, Y. G. Gao, J. W. Li, L. Xia, Y. J. Xiao, C. Sowa, Y. B. Zhao, G. S. Varner, J. Dong, Z. X. Meng, X. A. Xiong, A. A. Zafar, Y. Q. Wang, Krisztian Peters, K. H. Rashid, Y. T. Liang, S. Nisar, S. J. Chen, T. Khan, C. J. Tang, Y. Hu, Z. A. Liu, A. Sarantsev, D. H. Wei, P. R. Li, J. S. Lange, D. Xiao, F. Feldbauer, X. L. Ji, Z. L. Huang, Feng Liu, S. L. Yang, M. Ablikim, Y. G. Xie, X. H. Mo, L. S. Wang, S. X. Du, Z. L. Dou, M. H. Ye, X. N. Ma, A. Zallo, Y. Fu, L. L. Wang, H. Cai, I. Tapan, G. R. Liao, B. Wang, Y. H. Yan, J. W. Zhao, Y. C. Zhu, L. Y. Dong, M. Kavatsyuk, W. J. Zheng, F. Nerling, B. X. Zhang, T. Held, M. Albrecht, W. D. Li, B. T. Tsednee, M. Kuemmel, Matthew Glenn Kurth, W. Shan, Dan Wang, J. F. Sun, Magnus Wolke, S. Marcello, Y. F. Liang, Y. Zeng, S. Lusso, D. P. Jin, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, J. J. Song, L. Sun, N. Qin, Xiaozhong Huang, Zongyuan Wang, S. F. Zhang, Andrzej Kupsc, M. L. Chen, Zhiqing Liu, T. Holtmann, T. Johansson, Y. F. Wang, J. F. Chang, J. Y. Liu, Q. Ouyang, T. Hussain, O. B. Kolcu, F. Li, Q. Gao, Y. N. Gao, X. Cai, L. Lavezzi, X. Y. Ma, S. S. Fang, W. X. Gong, F. C. Ma, X. Q. Hao, Michael Papenbrock, F. Yan, J. Z. Fan, Y. B. Liu, X. H. Sun, S. Ahmed, Huanhuan Liu, Y. X. Yang, Z. J. Xiao, P. Kiese, J. F. Qiu, G. Felici, L. Fava, S. L. Olsen, R. A. Briere, X. S. Jiang, Q. Zhao, Y. Z. Sun, Xiang Zhou, C. X. Lin, Yang Zhang, H. J. Li, O. Cakir, Gang Zhao, Q. L. Xiu, J. Q. Zhang, S. L. Niu, F. Y. Li, X. Q. Li, Y. F. Long, P. L. Wang, M. Greco, X. L. Luo, K. Begzsuren, Muhammad Irshad, F. A. Harris, F. Bianchi, W. L. Chang, K. Y. Liu, H. Leithoff, R. P. Guo, Z. B. Li, and W. Ikegami Andersson
Subjects: Quantum chromodynamics, Physics, Pseudoscalar, Crystallography, Branching fraction, Cabibbo–Kobayashi–Maskawa matrix, Electron–positron annihilation, Lattice (order), 0103 physical sciences, General Physics and Astronomy, Exponential decay, 010306 general physics, 01 natural sciences
Abstract: Using a 3.19 fb^{-1} data sample collected at an e^{+}e^{-} center-of-mass energy of E_{cm}=4.178 GeV with the BESIII detector, we measure the branching fraction of the leptonic decay D_{s}^{+}→μ^{+}ν_{μ} to be B_{D_{s}^{+}→μ^{+}ν_{μ}}=(5.49±0.16_{stat}±0.15_{syst})×10^{-3}. Combining our branching fraction with the masses of the D_{s}^{+} and μ^{+} and the lifetime of the D_{s}^{+}, we determine f_{D_{s}^{+}}|V_{cs}|=246.2±3.6_{stat}±3.5_{syst} MeV. Using the c→s quark mixing matrix element |V_{cs}| determined from a global standard model fit, we evaluate the D_{s}^{+} decay constant f_{D_{s}^{+}}=252.9±3.7_{stat}±3.6_{syst} MeV. Alternatively, using the value of f_{D_{s}^{+}} calculated by lattice quantum chromodynamics, we find |V_{cs}|=0.985±0.014_{stat}±0.014_{syst}. These values of B_{D_{s}^{+}→μ^{+}ν_{μ}}, f_{D_{s}^{+}}|V_{cs}|, f_{D_{s}^{+}} and |V_{cs}| are each the most precise results to date.
Published: 2019

10. Observation ofψ(3686)→pp¯η′and improved measurement ofJ/ψ→pp¯η′

Author: A. A. Zafar, K. H. Rashid, Y. T. Liang, S. J. Chen, K. J. Li, F. Li, X. L. Gao, Fang Liu, S. Qian, F. C. Ma, T. Y. Qi, X. T. Huang, X D Shi, G. Rong, Xiaozhong Huang, L. H. Wu, M. Savrie, Yi Jin, U. Wiedner, I. Denysenko, J. W. Li, Q. An, Jialun Ping, Q. A. Malik, K. Zhang, G. F. Xu, X. Y. Zhang, S. J. Zhao, B. J. Liu, Y. J. Xiao, J. B. Liu, G. Mezzadri, W. C. Yan, Y. X. Xia, L. J. Wu, X. K. Zhou, Y. J. Mao, H. X. Yang, J. Min, X. L. Ji, C. Dong, S. Sosio, C. Sowa, Y. B. Zhao, W. Shan, I. Garzia, Tao Luo, H. B. Liu, S. Jin, B. Y. Zhang, X. Q. He, J. Dong, Andrzej Kupsc, Y. J. Sun, Yifan Yang, E. Boger, Y. P. Lu, S. B. Liu, I. Tapan, L. M. Gu, M. N. Achasov, Y. F. Wang, J. F. Qiu, M. Papenbrock, H. J. Lu, J. G. Lu, B. Kopf, L. P. Zhou, Z. Y. Zhang, F. De Mori, Q. J. Xu, B. X. Yu, Y. H. Yan, L. Fava, Y. J. Mo, S. Nisar, Y. M. Ma, Z. P. Mao, J. W. Zhao, Y. Nefedov, M. L. Chen, J. C. Chen, K. L. He, Xuanhong Lou, Joachim Pettersson, S. Leiber, Y. G. Gao, G. Y. Tang, M. Kuessner, S. W. Han, W. S. Cheng, C. J. Tang, Yao Zhang, G. Li, J. Fang, Tao Li, Y. Hu, Nasser Kalantar-Nayestanaki, X. N. Ma, X. Y. Zhou, Y. G. Xie, M. Y. Dong, Jimin Zhao, X. Y. Song, L. D. Liu, F. Nerling, Y. C. Zhu, Shulei Zhang, C. Morales Morales, Yue Pan, Jie Zhao, D. X. Lin, P. L. Li, D. Y. Liu, Alexey Zhemchugov, H. M. Hu, F. Y. Li, C. D. Fu, H. S. Chen, Alperen Yuncu, F. H. Liu, C. Q. Feng, Nicolas Berger, D. Xiao, F. E. Maas, X. R. Chen, T. Hu, Z. G. Wang, H. Y. Zhang, Z. Y. Deng, M. Ripka, J. H. Zou, Ch. Rosner, J. Libby, J. J. Xu, Z. Q. Yang, G. F. Chen, G. A. Chelkov, J. W. Zhang, H. L. Dai, Yang Zhang, Q. P. Ji, X. Tang, I. Uman, Yaquan Fang, M. Greco, Shou-hua Zhu, Z. L. Dou, M. M. Ma, X. F. Wang, X. H. Liu, S. S. Sun, B. Wang, M. Fritsch, I. R. Boyko, M. Kavatsyuk, J. B. Jiao, J. Y. Liu, T. Hussain, X. Y. Ma, W. X. Gong, J. Y. Zhang, X. Q. Hao, L. Koch, A. Khoukaz, M. Rolo, J. Z. Bai, M. Kuemmel, Matthew Glenn Kurth, Q. M. Ma, Xiao-Rui Lyu, A. Mustafa, J. Chai, J. P. Dai, Liqing Xu, G. X. Sun, J. V. Bennett, Li Yan, X. Y. Niu, X. Y. Shen, J. S. Huang, C. X. Liu, C. F. Redmer, M. Bertani, Z. Haddadi, L. Yang, P. Larin, Y. H. Xie, J. Pellegrino, R. Baldini Ferroli, Z. J. Xiao, P. L. Chen, K. Schoenning, Q. Y. Li, B. S. Zou, X. H. Mo, L. S. Wang, M. H. Ye, X. L. Li, Z. Jiao, D. H. Zhang, Y. K. Heng, T. Held, R. E. Mitchell, F. Cossio, Y. Yuan, Y. S. Zhu, X. P. Xu, X. B. Ji, M. Tiemens, Yu Zhang, Krisztian Peters, M. H. Gu, R. Kiuchi, Y. Ding, M. Maggiora, Ling Zhao, O. Bakina, K. J. Zhu, Y. T. Tan, M. Z. Wang, P. Patteri, W. Gradl, Jun-Yi Zhang, Bibo Ke, Q. Liu, Tristan Weber, W. B. Yan, H. Liang, P. X. Shen, Z. Wu, Lei Zhao, Z. L. Hou, R. Kliemt, P. L. Wang, X. N. Li, Haiping Peng, B. X. Zhang, D. Y. Wang, L. L. Ma, A. Mangoni, T. Khan, Magnus Wolke, Y. F. Liang, D. W. Bennett, Zujian Wang, D. P. Jin, L. Gong, A. Guskov, L. L. Wang, H. Cai, S. Pacetti, Jie Yu, H. Y. Sheng, L. G. Xia, A. Amoroso, Meng Wang, G. S. Huang, Muhammad Irshad, M. Qi, H. J. Yang, Yunlong Zhang, H. L. Liu, D. Bettoni, C. H. Li, Ke Wang, X. H. Sun, Zhiqing Zhang, K. Goetzen, M. G. Zhao, Y. H. Yang, T. J. Min, Ke Li, Dayong Wang, N. Qin, A. Dbeyssi, R. P. Guo, J. Zhu, Q. Gao, F. Feldbauer, H. R. Qi, C. Z. Yuan, G. Cibinetto, J. L. Zhang, Jianping Zheng, R. Poling, P. F. Duan, F. H. Heinsius, M. Kornicer, C. X. Yu, Y. N. Gao, Y. H. Zheng, Angelo Rivetti, I. B. Nikolaev, Ke Liu, P. Kiese, W. Kühn, A. Julin, Dan Wang, Y. Zhang, F. A. Harris, J. F. Sun, Z. L. Huang, Y. P. Guo, J. H. Yin, S. Zhu, Feng Liu, Fenfen An, B. L. Wang, Z. Y. You, Z. A. Zhu, T. C. Zhao, Cong-Feng Qiao, M. Ablikim, X. Y. Jiang, N. Yu. Muchnoi, S. X. Du, K. Y. Liu, Serkant Ali Cetin, Feng Yan, Z. P. Zhang, H. Leithoff, X. S. Kang, Y. H. Zhang, M. Shao, Y. T. Gu, M. Destefanis, R. A. Briere, B. Zheng, R. G. Ping, S. Marcello, Y. Zeng, S. L. Olsen, Zhe Sun, Z. Y. Wang, S. Lusso, J. Q. Zhang, Z. A. Liu, V. Prasad, E. Fioravanti, Y. Ban, P. Weidenkaff, X. S. Jiang, S. Ahmed, Y. X. Yang, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, J. J. Song, S. P. Wen, Kang Li, X. S. Qin, X. R. Zhou, C. P. Shen, L. Sun, Cheng Li, A. Sarantsev, D. H. Wei, P. R. Li, J. S. Lange, M. Albrecht, Q. Zhao, W. D. Li, Y. Z. Sun, X. K. Chu, B. T. Tsednee, B. Garillon, Huihui Liu, I. K. Keshk, R. X. Yang, A. Pitka, G. R. Liao, C. X. Lin, J. G. Messchendorp, Alexander Leon Gilman, Gang Zhao, O. Cakir, Qiunan Xu, W. G. Li, A. G. Denig, Lingxuan Zhang, L. Y. Dong, J. C. Li, Y. K. Sun, Xiaoyu Zhou, Z. Gao, S. Spataro, S. L. Niu, J. Zhuang, X. Q. Li, Y. F. Long, H. M. Liu, J. F. Hu, R. Farinelli, W. J. Zheng, G. F. Cao, A. Q. Guo, Z. Y. Peng, C. W. Wang, H. L. Ma, M. X. Luo, W. M. Song, D. M. Li, H. Muramatsu, D. V. Dedovich, Xu Zhou, Z. H. Qin, M. Pelizaeus, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, Zhiqing Liu, T. Johansson, J. F. Chang, O. B. Kolcu, X. Cai, L. Lavezzi, Zongyuan Wang, H. B. Li, C. L. Luo, X. Xia, Q. Zhou, M. Richter, Z. Ning, C. C. Zhang, B. Zhong, L. B. Guo, Lei Li, M.G. Alekseev, A. N. Zhu, Q. Ouyang, Tao Zhang, S. S. Fang, T. Ma, Xu Shan, Y. B. Liu, Huanhuan Liu, A. Calcaterra, Z. G. Zhao, S. Fegan, G. Felici, L. Z. Liao, Yu Bai, H. H. Zhang, Z. J. Sun, S. Maldaner, H. J. Li, Q. L. Xiu, X. L. Luo, K. Begzsuren, W. P. Wang, F. Bianchi, Z. X. Meng, and X. A. Xiong
Subjects: Physics, Particle physics
Published: 2019

11. First Measurement of the Form Factors in Ds+→K0e+νe and Ds+→K*0e+νe Decays

Author: J. L. Zhang, M. H. Gu, R. Kiuchi, H. Y. Sheng, C. X. Yu, I. Uman, B. Zheng, R. G. Ping, S. Nakhoul, S. J. Zhao, L. J. Wu, Krisztian Peters, P. Larin, S. Ahmed, Y. X. Yang, Yunlong Zhang, H. L. Liu, D. Bettoni, Q. J. Xu, Y. J. Mo, Z. X. Meng, X. A. Xiong, J. C. Chen, Z. Gao, J. Q. Zhang, S. L. Niu, Xuanhong Lou, X. Y. Jiang, F. Y. Li, S. L. Yang, F. Li, X. Q. Li, Z. A. Liu, V. Prasad, Y. Ban, P. Weidenkaff, F. H. Heinsius, G. R. Liao, S. P. Wen, X. R. Zhou, Michael Papenbrock, F. Yan, Cheng Li, Nasser Kalantar-Nayestanaki, R. Poling, Jianping Zheng, S. Zhu, C. Morales Morales, Yue Pan, Y. F. Long, M. Greco, M. Bertani, Z. Haddadi, M. Albrecht, H. J. Lu, J. G. Lu, F. C. Ma, W. D. Li, X. K. Chu, J. F. Hu, R. Kliemt, Kang Li, Zhiyong Zhang, Q. Liu, L. Yang, A. A. Zafar, A. Mangoni, A. Guskov, Y. H. Xie, J. C. Li, Jie Yu, X. H. Mo, L. S. Wang, M. H. Ye, T. J. Min, M. Destefanis, F. E. Maas, T. Hu, J. F. Qiu, X. L. Gao, L. L. Ma, L. Gong, G. F. Xu, J. Pellegrino, B. Q. Wang, J. Zhuang, T. Khan, L. L. Wang, H. Cai, Y. T. Tan, M. Maggiora, Ling Zhao, W. M. Song, M. X. Luo, G. Y. Tang, W. Gradl, M. Ripka, S. Qian, Q. An, Jialun Ping, O. Bakina, K. Y. Liu, Z. J. Xiao, K. J. Zhu, L. Fava, Q. P. Ji, M. M. Ma, C. Dong, S. Sosio, Jie Zhao, D. X. Lin, S. Leiber, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, L. G. Xia, A. Amoroso, K. H. Rashid, M. Kuemmel, Matthew Glenn Kurth, M. G. Zhao, Y. H. Yang, Q. Zhao, Alexey Zhemchugov, H. M. Hu, Y. Z. Sun, Xiang Zhou, K. Zhang, G. Cibinetto, Liqing Xu, S. F. Zhang, D. Y. Wang, Lei Zhao, M. Qi, H. J. Yang, J. Chai, W. Shan, D. V. Dedovich, Xu Zhou, L. M. Gu, R. P. Guo, Z. L. Hou, Y. T. Liang, X. Y. Shen, P. Kiese, X. Y. Zhang, P. X. Shen, G. X. Sun, J. V. Bennett, Z. Wu, Yang Zhang, A. Dbeyssi, C. X. Lin, J. W. Zhang, R. A. Briere, Gang Zhao, Joachim Pettersson, P. R. Li, S. J. Chen, Z. G. Wang, L. D. Liu, Z. Jiao, Fu-Hu Liu, D. H. Zhang, M. Richter, Y. Ding, Bingxuan Liu, G. S. Huang, X. S. Jiang, H. Y. Zhang, W. S. Cheng, L. Y. Dong, Z. Ning, X. Y. Song, K. J. Li, B. J. Liu, S. B. Liu, Angelo Rivetti, X. Tang, Yao Zhang, G. Li, J. B. Liu, J. J. Xu, M. Alekseev, T. Y. Qi, S. Han, Xiaozhong Huang, W. J. Zheng, L. Zhang, Z. Q. Yang, R. X. Yang, G. F. Chen, A. Julin, C. Z. Yuan, F. Feldbauer, A. Gilman, R. Farinelli, Y. Nefedov, Z. L. Huang, Feng Liu, W. Kühn, Z. Y. You, Z. A. Zhu, F. Nerling, Jun-Yi Zhang, Y. P. Guo, A. Yuncu, M. Rolo, Y. X. Xia, S. H. Zhu, Y. F. Wang, C. D. Fu, C. Q. Feng, X. R. Chen, Y. J. Sun, Yifan Yang, Y. P. Lu, L. H. Wu, J. Y. Zhang, A. Calcaterra, Z. G. Zhao, X. K. Zhou, Z. P. Zhang, H. L. Ma, J. S. Huang, M. Ablikim, S. Fegan, Z. Y. Deng, L. Z. Liao, C. X. Liu, D. M. Li, Xiao-Rui Lyu, Y. G. Gao, J. Zhu, M. Savrie, T. Weber, I. B. Nikolaev, F. Cossio, P. L. Chen, J. Min, Yi Jin, F. De Mori, H. H. Zhang, J. H. Yin, D. W. Bennett, Zujian Wang, T. Hussain, Xingguo Li, X. Y. Ma, Y. K. Heng, Y. Bai, Dan Wang, C. P. Shen, J. W. Li, B. Kopf, Z. J. Sun, M. Shao, Y. T. Gu, M. Pelizaeus, W. X. Gong, Andrzej Kupsc, X. N. Ma, X. L. Ji, K. L. He, Shan Jin, S. Maldaner, K. Goetzen, Zhiqing Liu, J. B. Jiao, Y. J. Xiao, M. Z. Wang, L. Yan, J. Y. Liu, H. B. Li, Jimin Zhao, E. Fioravanti, A. G. Denig, P. L. Li, C. L. Luo, M. Kuessner, X. Y. Zhou, J. F. Sun, X. Xia, Q. Zhou, C. Sowa, Y. B. Zhao, M. L. Chen, M. Kavatsyuk, T. Johansson, J. F. Chang, C. C. Zhang, B. Zhong, L. B. Guo, J. Dong, Q. Gao, Y. N. Gao, S. Marcello, Y. Zeng, Y. G. Xie, A. Sarantsev, D. H. Wei, J. Libby, Cui Li, J. S. Lange, Y. Zhang, X. H. Sun, S. Nisar, C. J. Tang, S. L. Olsen, Zhe Sun, S. Lusso, H. Muramatsu, A. N. Zhu, Ulrich Wiedner, Tao Zhang, S. X. Du, Y. Hu, G. A. Chelkov, B. X. Zhang, M. Kornicer, Z. L. Dou, O. B. Kolcu, Xu Shan, Tao Luo, D. Xiao, X. Cai, X. B. Ji, L. Lavezzi, M. Tiemens, X. F. Wang, Y. B. Chen, C. F. Redmer, B. X. Yu, P. Patteri, Xiaofeng Zhu, J. Z. Zhang, J. J. Song, I. K. Keshk, X. Q. Hao, L. Sun, H. S. Chen, H. L. Dai, Igor Boyko, Q. M. Ma, Ke Wang, X. T. Huang, A. Mustafa, P. F. Duan, Magnus Wolke, G. Rong, Fenfen An, B. L. Wang, T. C. Zhao, Y. F. Liang, D. P. Jin, L. Koch, A. Khoukaz, X. Y. Niu, R. Baldini Ferroli, Dayong Wang, N. Qin, Y. Yuan, Y. S. Zhu, X. N. Li, Yu Zhang, Haiping Peng, X. Liu, H. R. Qi, B. T. Tsednee, Y. H. Yan, J. W. Zhao, Y. C. Zhu, Serkant Ali Cetin, E. Boger, T. Held, M. Y. Dong, H. B. Liu, J. H. Zou, S. S. Sun, X. S. Qin, R. E. Mitchell, Bibo Ke, W. B. Yan, M. N. Achasov, S. Pacetti, P. L. Wang, Meng Wang, Muhammad Irshad, Dean Liu, Ke Li, F. A. Harris, W. L. Chang, H. Leithoff, Fang Liu, I. Denysenko, X D Shi, W. C. Yan, Y. J. Mao, H. X. Yang, I. Garzia, B. Garillon, Huihui Liu, B. Y. Zhang, J. G. Messchendorp, J. P. Dai, W. G. Li, Y. K. Sun, Xiaoyu Zhou, S. Spataro, X. P. Xu, Lei Li, H. M. Liu, G. F. Cao, A. Q. Guo, Z. Y. Peng, C. W. Wang, Z. H. Qin, H. Liang, M. Fritsch, Ke Liu, Q. A. Malik, G. Mezzadri, X. Q. He, Zongyuan Wang, Q. Ouyang, L. P. Zhou, S. S. Fang, Y. M. Ma, Z. P. Mao, Y. B. Liu, X. L. Luo, J. Fang, Tao Li, K. Begzsuren, W. P. Wang, F. Bianchi, Ch. Rosner, D. Y. Liu, Yaquan Fang, A. Pitka, Huanhuan Liu, G. Felici, K. Schoenning, Q. Y. Li, H. J. Li, B. S. Zou, Q. L. Xiu, Niklaus Berger, Zhiqing Zhang, Y. H. Zheng, Cong-Feng Qiao, N. Yu. Muchnoi, X. S. Kang, Y. H. Zhang, and Z. Y. Wang
Subjects: Germanium compounds, Physics, Crystallography, Annihilation, Branching fraction, 0103 physical sciences, Hadron, General Physics and Astronomy, 010306 general physics, 01 natural sciences
Abstract: We report on new measurements of Cabibbo-suppressed semileptonic D_{s}^{+} decays using 3.19 fb^{-1} of e^{+}e^{-} annihilation data sample collected at a center-of-mass energy of 4.178 GeV with the BESIII detector at the BEPCII collider. Our results include branching fractions B(D_{s}^{+}→K^{0}e^{+}ν_{e})=[3.25±0.38(stat)±0.16(syst)]×10^{-3} and B(D_{s}^{+}→K^{*0}e^{+}ν_{e})=[2.37±0.26(stat)±0.20(syst)]×10^{-3}, which are much improved relative to previous measurements, and the first measurements of the hadronic form-factor parameters for these decays. For D_{s}^{+}→K^{0}e^{+}ν_{e}, we obtain f_{+}(0)=0.720±0.084(stat)±0.013(syst), and for D_{s}^{+}→K^{*0}e^{+}ν_{e}, we find form-factor ratios r_{V}=V(0)/A_{1}(0)=1.67±0.34(stat)±0.16(syst) and r_{2}=A_{2}(0)/A_{1}(0)=0.77±0.28(stat)±0.07(syst).
Published: 2019

12. Observation of D+→f0(500)e+νe and Improved Measurements of D→ρe+νe

Author: S. J. Zhao, S. Qian, Jialun Ping, K. Zhang, X. Y. Zhang, J. B. Liu, R. Farinelli, Q. J. Xu, Y. J. Sun, Yifan Yang, M. Bertani, Yunlong Zhang, Z. Haddadi, L. Yang, Y. P. Lu, J. C. Chen, Xuanhong Lou, H. L. Liu, D. Bettoni, H. L. Ma, D. M. Li, R. Poling, Nasser Kalantar-Nayestanaki, H. L. Jiang, Jianping Zheng, C. Morales Morales, L. J. Wu, S. Zhu, S. Leiber, M. Pelizaeus, I. B. Nikolaev, J. H. Yin, Michael Papenbrock, Bingxuan Liu, F. Yan, Y. Ban, P. Weidenkaff, Shan Jin, F. H. Heinsius, Y. J. Mo, M. Shao, Y. T. Gu, K. Goetzen, Y. T. Tan, M. Richter, T. J. Min, W. S. Cheng, Yao Zhang, G. Li, L. Zhang, S. P. Wen, Y. Nefedov, W. Gradl, X. L. Ji, M. Ripka, A. Gilman, X. R. Zhou, M. Destefanis, I. Uman, Z. Ning, M. G. Zhao, Y. H. Yang, R. P. Guo, Z. J. Xiao, M. Albrecht, Z. G. Wang, H. Y. Zhang, Cheng Li, Haiwen Liu, C. D. Fu, Q. P. Ji, L. M. Gu, P. Kiese, D. Y. Wang, E. Fioravanti, J. F. Sun, G. F. Chen, Minglin Ma, C. Q. Feng, X. R. Chen, S. Ahmed, Y. X. Yang, W. D. Li, B. T. Tsednee, R. A. Briere, J. Y. Zhang, Liqing Xu, X. K. Zhou, Fang Liu, Kang Li, J. L. Zhang, X. Tang, Z. Y. Deng, P. L. Wang, S. Nakhoul, F. F. Sui, M. H. Gu, R. Kiuchi, J. Min, A. Sarantsev, X. S. Jiang, X. Y. Shen, D. H. Wei, P. R. Li, J. Libby, Cui Li, S. Marcello, Y. Zeng, A. Yuncu, M. Rolo, H. Y. Sheng, F. De Mori, S. L. Olsen, H. J. Lu, J. G. Lu, Zongyuan Wang, I. Denysenko, Xingguo Li, Muhammad Irshad, W. G. Li, Q. Zhao, X. Y. Jiang, J. S. Lange, Meng Wang, D. Y. Liu, J. B. Jiao, Yuekun Heng, Y. H. Yan, Y. K. Sun, J. W. Zhao, W. C. Yan, C. X. Yu, Zhe Sun, S. Lusso, X. Y. Zhou, H. H. Wang, Y. Ding, P. Larin, Y. Z. Sun, B. Kopf, X. Y. Niu, Dean Liu, B. J. Liu, Xiaoyu Zhou, C. F. Redmer, Y. C. Zhu, M. H. Ye, Shuangli Yang, K. L. He, B. Zheng, R. G. Ping, Xiang Zhou, J. Q. Zhang, S. L. Niu, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, Q. Ouyang, A. Calcaterra, Z. G. Zhao, S. Fegan, F. Y. Li, R. Kliemt, L. Z. Liao, W. Kühn, X. N. Ma, A. Mangoni, F. Cossio, C. X. Lin, A. Guskov, S. S. Fang, Jie Yu, Gang Zhao, M. Z. Wang, F. E. Maas, S. Spataro, Y. G. Xie, X. Q. Li, Y. F. Long, M. Greco, B. Y. Zhang, X. F. Wang, Xiaozhong Huang, E. Boger, I. K. Keshk, Z. Y. You, K. J. Zhu, X. P. Xu, Z. A. Zhu, J. J. Song, L. Sun, Jimin Zhao, Q. M. Ma, G. F. Xu, X. K. Chu, T. Held, F. A. Harris, X. T. Huang, W. L. Chang, Y. B. Liu, P. L. Li, H. H. Zhang, T. Weber, A. Mustafa, L. D. Liu, L. Y. Dong, J. Y. Liu, C. P. Shen, G. Y. Tang, Y. H. Zheng, X. L. Luo, Z. J. Sun, G. Cibinetto, S. X. Du, Z. L. Dou, T. Hu, K. Y. Liu, H. Leithoff, Lei Li, V. Prasad, S. Han, F. Li, S. Maldaner, Q. Gao, Y. N. Gao, Krisztian Peters, Yi-Tao Wang, F. C. Ma, Andrzej Kupsc, M. Qi, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, H. J. Yang, Y. Yuan, Y. S. Zhu, Cong-Feng Qiao, Jie Zhao, D. X. Lin, J. F. Hu, N. Yu. Muchnoi, X. L. Gao, K. Begzsuren, Q. An, X. Liu, Yu Zhang, Y. F. Wang, J. C. Li, Alexey Zhemchugov, H. M. Hu, H. R. Qi, W. J. Zheng, Guangshun Huang, T. Hussain, L. H. Wu, Zhiyong Zhang, X. S. Kang, Y. H. Zhang, F. Bianchi, J. Zhuang, Q. Liu, X. Y. Ma, F. Nerling, M. Savrie, M. X. Luo, Y. Pan, X. Y. Song, M. Kavatsyuk, G. R. Liao, O. Bakina, D. V. Dedovich, Bibo Ke, W. B. Yan, W. X. Gong, G. F. Cao, C. Dong, S. Sosio, M. L. Chen, L. Yan, Xu Zhou, M. N. Achasov, Yi Jin, Serkant Ali Cetin, L. L. Ma, L. Gong, J. Chai, Xiao-Rui Lyu, B. Q. Wang, J. W. Li, M. Kuessner, L. Xia, Z. Y. Wang, X. H. Sun, X. B. Ji, M. Tiemens, J. J. Xu, Z. Q. Yang, M. Alekseev, Huanhuan Liu, A. Amoroso, S. Pacetti, Y. J. Xiao, G. X. Sun, J. V. Bennett, P. Patteri, Y. Zhang, T. Y. Qi, Joachim Pettersson, J. F. Qiu, P. X. Shen, M. Kuemmel, Matthew Glenn Kurth, Z. Wu, H. B. Li, G. Felici, A. G. Denig, A. Q. Guo, Z. Y. Peng, Y. G. Gao, J. Zhu, C. L. Luo, L. Fava, Z. X. Meng, X. Xia, Q. Zhou, S. B. Liu, X. A. Xiong, C. W. Wang, G. Rong, W. Shan, A. Dbeyssi, J. S. Huang, C. C. Zhang, Y. X. Xia, S. H. Zhu, A. A. Zafar, B. Zhong, L. B. Guo, C. X. Liu, X. H. Mo, L. S. Wang, Ke Li, Angelo Rivetti, H. Muramatsu, A. N. Zhu, M. Y. Dong, Z. Jiao, Fu-Hu Liu, Ulrich Wiedner, D. H. Zhang, Tao Zhang, H. J. Li, Zhiqing Zhang, Q. L. Xiu, Magnus Wolke, B. X. Zhang, M. Kornicer, A. Julin, R. X. Yang, T. Khan, K. H. Rashid, Y. F. Liang, H. B. Liu, D. P. Jin, L. L. Wang, H. Cai, Xu Shan, Dan Wang, Y. T. Liang, Yang Zhang, S. J. Chen, G. A. Chelkov, W. P. Wang, J. H. Zou, C. Sowa, Y. B. Zhao, S. S. Sun, Z. H. Qin, K. J. Li, X D Shi, Dayong Wang, N. Qin, X. S. Qin, J. Dong, Y. J. Mao, H. X. Yang, I. Garzia, R. E. Mitchell, Y. H. Xie, S. Nisar, C. J. Tang, Y. Hu, B. Garillon, Huihui Liu, J. Pellegrino, Z. A. Liu, F. Feldbauer, J. G. Messchendorp, Z. L. Huang, Feng Liu, M. Maggiora, J. P. Dai, Ling Zhao, D. Xiao, W. M. Song, M. Ablikim, Lei Zhao, S. F. Zhang, Jun-Yi Zhang, Y. P. Guo, Z. P. Zhang, Z. L. Hou, P. L. Chen, D. W. Bennett, Zujian Wang, Y. Bai, C. Z. Yuan, Zhiqing Liu, T. Johansson, J. F. Chang, O. B. Kolcu, X. Cai, L. Lavezzi, X. Q. Hao, L. Koch, A. Khoukaz, R. Baldini Ferroli, X. N. Li, Haiping Peng, Tao Luo, Yaquan Fang, B. X. Yu, A. Pitka, H. S. Chen, H. L. Dai, Igor Boyko, K. Schoenning, Q. Y. Li, B. S. Zou, Niklaus Berger, Ke Wang, Q. A. Malik, G. Mezzadri, X. Q. He, L. P. Zhou, P. F. Duan, Fenfen An, Y. M. Ma, Z. P. Mao, B. L. Wang, T. C. Zhao, J. Fang, Tao Li, Z. Gao, Ch. Rosner, H. Liang, M. Fritsch, Jianhao Zhang, and Ke Liu
Subjects: Nuclear physics, Physics, Cross section (physics), Luminosity (scattering theory), 0103 physical sciences, Detector, General Physics and Astronomy, Sigma, High Energy Physics::Experiment, 010306 general physics, 01 natural sciences, Energy (signal processing)
Abstract: Using a data sample corresponding to an integrated luminosity of 2.93 fb(-1) recorded by the BESIII detector at a center-of-mass energy of 3.773 GeV, we present an analysis of the decays D-0 -> ...
Published: 2019

13. Observation of OZI-suppressed decays χcJ→ωϕ

Author: P. L. Wang, X. L. Luo, R. Farinelli, M. Kuemmel, Matthew Glenn Kurth, K. Begzsuren, H. L. Ma, D. M. Li, W. P. Wang, T. Khan, F. Bianchi, X. L. Gao, H. Muramatsu, H. B. Li, W. S. Cheng, Yao Zhang, G. Li, M. Kuessner, H. Liang, Dan Wang, M. M. Ma, M. Pelizaeus, C. D. Fu, C. Q. Feng, X. R. Chen, C. Dong, R. Kliemt, C. L. Luo, Z. Y. Deng, M. Ripka, M. Y. Dong, A. Mangoni, Q. P. Ji, X. Xia, A. Guskov, Jie Yu, Q. Zhou, T. J. Min, K. J. Zhu, D. Y. Liu, G. Cibinetto, Xiaozhong Huang, Xingguo Li, F. Feldbauer, S. Ahmed, Y. X. Yang, S. Sosio, C. C. Zhang, B. Zhong, L. B. Guo, Z. L. Huang, Feng Liu, Kang Li, Y. Ding, J. Z. Bai, M. G. Zhao, Y. H. Yang, R. P. Guo, J. Zhu, Lei Li, G. A. Chelkov, A. Q. Guo, Z. Y. Peng, C. W. Wang, F. De Mori, Zongyuan Wang, X. P. Xu, X. B. Ji, M. Tiemens, J. Chai, M.G. Alekseev, P. Patteri, J. Min, Zhiqing Liu, T. Y. Qi, A. N. Zhu, Tao Zhang, G. X. Sun, J. V. Bennett, Li Yan, M. Ablikim, X. Y. Jiang, H. B. Liu, Joachim Pettersson, J. H. Zou, G. R. Liao, T. Ma, T. Johansson, J. F. Chang, Meng Wang, Muhammad Irshad, Z. Jiao, D. H. Zhang, Q. Ouyang, Xiao-Rui Lyu, Andrzej Kupsc, Ke Wang, W. M. Song, Ke Liu, B. Q. Wang, Y. Z. Sun, Y. F. Wang, O. B. Kolcu, Y. H. Xie, J. Pellegrino, X. Cai, J. F. Sun, Xu Shan, L. Lavezzi, S. B. Liu, S. S. Sun, X. Y. Zhou, S. S. Fang, I. K. Keshk, J. B. Jiao, M. L. Chen, Z. G. Wang, H. Y. Zhang, S. Marcello, J. C. Li, Z. H. Qin, Y. X. Xia, Y. Nefedov, Jun-Yi Zhang, Y. B. Liu, M. Maggiora, Ling Zhao, B. J. Liu, C. X. Lin, Alexander Leon Gilman, B. Kopf, J. Libby, Gang Zhao, Y. Zeng, X D Shi, Zhe Sun, S. Lusso, R. Poling, M. Richter, F. A. Harris, Z. P. Zhang, J. Zhuang, G. F. Chen, P. F. Duan, F. H. Heinsius, X. K. Zhou, Z. Ning, Y. J. Mao, H. X. Yang, Yaquan Fang, Shou-hua Zhu, X. Tang, Huanhuan Liu, K. L. He, I. Garzia, M. X. Luo, J. Y. Zhang, Fenfen An, G. Felici, D. W. Bennett, Zujian Wang, H. Leithoff, F. Li, S. W. Han, Lei Zhao, Z. L. Hou, I. Tapan, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, Y. H. Yan, D. V. Dedovich, R. E. Mitchell, J. J. Song, W. Kühn, J. Y. Liu, B. L. Wang, F. C. Ma, L. Sun, M. Rolo, Xu Zhou, B. Garillon, Huihui Liu, X. F. Wang, Z. Y. You, Z. A. Zhu, J. W. Zhao, T. C. Zhao, Y. K. Heng, Jimin Zhao, J. G. Messchendorp, Q. Gao, Y. N. Gao, K. Schoenning, Q. Y. Li, B. S. Zou, X. L. Ji, C. Sowa, Y. B. Zhao, Bibo Ke, Q. M. Ma, A. Mustafa, W. Shan, S. J. Zhao, P. L. Li, Qiunan Xu, Y. Zhang, J. F. Qiu, M. Papenbrock, Feng Yan, Y. C. Zhu, Y. G. Gao, J. Dong, W. B. Yan, H. J. Li, L. Koch, A. Khoukaz, W. G. Li, L. Fava, Z. Y. Zhang, Q. A. Malik, G. Mezzadri, W. C. Yan, F. Cossio, X. Q. Hao, Q. J. Xu, Q. L. Xiu, A. G. Denig, C. F. Redmer, Y. K. Sun, Qiang Zhao, X. Y. Niu, C. P. Shen, Xiaoyu Zhou, F. Nerling, Magnus Wolke, X. Q. He, S. Nisar, C. J. Tang, Y. Hu, S. Nakhoul, J. C. Chen, Xuanhong Lou, S. Pacetti, S. Spataro, S. Leiber, Y. P. Lu, Nasser Kalantar-Nayestanaki, R. Baldini Ferroli, Y. Yuan, Y. S. Zhu, A. Calcaterra, Z. G. Zhao, L. J. Wu, S. Fegan, L. Z. Liao, Yang Zhang, C. Z. Yuan, Y. F. Liang, L. M. Gu, M. N. Achasov, M. Bertani, Z. Haddadi, D. P. Jin, C. Morales Morales, Yu Zhang, Yue Pan, Y. J. Mo, L. P. Zhou, Y. G. Xie, Yu Bai, Y. M. Ma, T. Held, L. Yang, J. Q. Zhang, P. Larin, H. M. Liu, Krisztian Peters, D. Xiao, J. F. Hu, Z. L. Dou, Mario Greco, Z. P. Mao, H. H. Zhang, Z. J. Sun, M. Z. Wang, Ke Li, G. F. Cao, Q. Liu, Tristan Weber, J. Fang, Tao Li, Yunlong Zhang, H. L. Liu, Dayong Wang, N. Qin, H. J. Lu, J. G. Lu, S. Maldaner, D. Bettoni, X. N. Li, L. L. Ma, L. Gong, Fang Liu, Ch. Rosner, Haiping Peng, X. N. Ma, G. Y. Tang, F. E. Maas, T. Hu, Y. T. Tan, Tao Luo, J. L. Zhang, L. G. Xia, U. Wiedner, I. Denysenko, I. R. Boyko, I. Uman, A. Amoroso, Jianping Zheng, W. Gradl, Jie Zhao, D. X. Lin, Liqing Xu, X. Y. Shen, B. X. Yu, M. Albrecht, Alexey Zhemchugov, H. M. Hu, D. Y. Wang, S. Zhu, O. Bakina, B. Y. Zhang, A. Dbeyssi, Shulei Zhang, M. Qi, H. J. Yang, F. H. Liu, Nicolas Berger, W. D. Li, B. T. Tsednee, Z. J. Xiao, F. Y. Li, H. S. Chen, Alperen Yuncu, J. W. Zhang, P. X. Shen, P. L. Chen, M. Kornicer, Angelo Rivetti, S. X. Du, Z. Wu, A. Julin, H. L. Dai, K. Y. Liu, Zhiqing Zhang, M. Destefanis, M. Fritsch, M. Kavatsyuk, Y. H. Zheng, Cong-Feng Qiao, B. X. Zhang, N. Yu. Muchnoi, X. S. Kang, Y. H. Zhang, M. H. Ye, S. L. Olsen, H. R. Qi, L. Y. Dong, Z. Y. Wang, Y. P. Guo, Serkant Ali Cetin, W. J. Zheng, S. Qian, X. H. Liu, Z. A. Liu, Q. An, Jialun Ping, K. Zhang, X. Y. Zhang, J. P. Dai, J. B. Liu, Y. J. Sun, Yifan Yang, E. Boger, V. Prasad, Y. Ban, P. Weidenkaff, I. B. Nikolaev, S. P. Wen, J. H. Yin, X. S. Qin, X. R. Zhou, M. Shao, Y. T. Gu, Cheng Li, E. Fioravanti, K. Goetzen, A. Sarantsev, D. H. Wei, P. R. Li, J. S. Lange, M. H. Gu, R. Kiuchi, H. Y. Sheng, C. X. Yu, B. Zheng, R. G. Ping, X. K. Chu, X. H. Mo, L. S. Wang, Lingxuan Zhang, L. L. Wang, H. Cai, G. F. Xu, S. Jin, X. Y. Song, L. D. Liu, J. J. Xu, Z. Q. Yang, J. S. Huang, C. X. Liu, L. H. Wu, M. Savrie, Yi Jin, J. W. Li, Y. J. Xiao, Z. Gao, S. L. Niu, X. Q. Li, Y. F. Long, Z. X. Meng, X. A. Xiong, A. A. Zafar, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, P. Kiese, K. H. Rashid, R. A. Briere, G. S. Huang, X. S. Jiang, R. X. Yang, A. Pitka, O. Cakir, Y. T. Liang, T. Hussain, X. Y. Ma, W. X. Gong, S. J. Chen, C. H. Li, X. H. Sun, K. J. Li, X. T. Huang, and G. Rong
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, 010306 general physics, Branching (polymer chemistry), 01 natural sciences, Omega
Abstract: Decays χcJ(J=0,1,2)→ωϕ are studied using (448.1±2.9)×106ψ(3686) events collected with the BESIII detector in 2009 and 2012. In addition to the previously established χc0→ωϕ, the first observation of χc1→ωϕ is reported in this paper. The measured product branching fractions are B(ψ(3686)→γχc0)×B(χc0→ωϕ)=(13.83±0.70±1.01)×10-6 and B(ψ(3686)→γχc1)×B(χc1→ωϕ)=(2.67±0.31±0.27)×10-6, and the absolute branching fractions are B(χc0→ωϕ)=(13.84±0.70±1.08)×10-5 and B(χc1→ωϕ)=(2.80±0.32±0.30)×10-5. We also find strong evidence for χc2→ωϕ with a statistical significance of 4.8σ, and the corresponding product and absolute branching fractions are measured to be B(ψ(3686)→γχc2)×B(χc2→ωϕ)=(0.91±0.23±0.12)×10-6 and B(χc2→ωϕ)=(1.00±0.25±0.14)×10-5. Here, the first errors are statistical and the second ones systematic.
Published: 2019

14. Study of the decay D0→K¯0π−e+νe

Author: F. C. Ma, X. K. Chu, X D Shi, Y. J. Mao, H. X. Yang, I. Garzia, J. F. Qiu, M. Papenbrock, L. Fava, Lingxuan Zhang, B. Garillon, Huihui Liu, Xiao-Rui Lyu, Y. H. Xie, F. Nerling, Ke Wang, J. G. Messchendorp, Yang Zhang, P. W. Luo, J. Pellegrino, A. Q. Guo, Z. Y. Peng, C. W. Wang, W. M. Song, W. G. Li, A. G. Denig, M. Maggiora, Ling Zhao, Y. K. Sun, X. L. Gao, Z. H. Qin, Xiaoyu Zhou, R. Poling, P. F. Duan, F. H. Heinsius, L. J. Wu, S. Spataro, F. De Mori, Fenfen An, Y. J. Mo, B. L. Wang, H. M. Liu, L. H. Wu, Lei Zhao, T. C. Zhao, C. Dong, S. Sosio, J. F. Hu, M. Savrie, Z. L. Hou, H. J. Lu, J. G. Lu, G. F. Cao, F. F. Sui, M. H. Gu, R. Kiuchi, M. Bertani, Yi Jin, J. W. Li, T. Y. Qi, S. J. Zhao, B. J. Liu, H. Y. Sheng, P. L. Wang, Joachim Pettersson, F. E. Maas, T. Hu, C. X. Yu, X. Y. Zhou, X. P. Xu, X. B. Ji, X. L. Ji, Y. J. Xiao, M. Tiemens, Z. X. Meng, X. A. Xiong, Meng Wang, Muhammad Irshad, Q. P. Ji, Y. X. Xia, X. L. Li, C. Z. Yuan, I. R. Boyko, B. Zheng, X. Tang, P. Patteri, A. Calcaterra, Z. G. Zhao, O. Bakina, R. G. Ping, Z. Y. Zhang, A. A. Zafar, Z. Haddadi, L. Yang, Q. J. Xu, X. K. Zhou, Z. A. Liu, L. Z. Liao, S. B. Liu, M. M. Ma, Liqing Xu, X. Y. Shen, F. A. Harris, W. L. Chang, J. C. Chen, Xuanhong Lou, L. Koch, A. Khoukaz, V. Prasad, Y. G. Xie, P. X. Shen, K. H. Rashid, Z. Wu, Y. Ding, M. Albrecht, Y. Nefedov, S. Leiber, Nasser Kalantar-Nayestanaki, Y. Ban, P. Weidenkaff, Yu Bai, M. Rolo, Y. H. Zheng, Cong-Feng Qiao, Z. P. Zhang, H. Leithoff, Fang Liu, H. H. Zhang, X. F. Wang, W. S. Cheng, Yao Zhang, G. Li, N. Yu. Muchnoi, R. Baldini Ferroli, C. Morales Morales, S. P. Wen, Yue Pan, Z. J. Sun, I. B. Nikolaev, Y. G. Gao, Z. L. Dou, M. Kuessner, G. Y. Tang, U. Wiedner, Z. G. Wang, I. Denysenko, H. Y. Zhang, W. Kühn, Z. Y. You, X. S. Kang, W. D. Li, B. T. Tsednee, Krisztian Peters, S. Malde, M. Z. Wang, Z. A. Zhu, Y. T. Liang, S. J. Chen, Jie Zhao, D. X. Lin, C. D. Fu, C. Q. Feng, X. R. Chen, X. S. Qin, X. R. Zhou, Cheng Li, Alexey Zhemchugov, H. M. Hu, X. L. Luo, K. Goetzen, Q. M. Ma, A. Mustafa, B. Y. Zhang, J. H. Yin, X. N. Li, Z. Y. Deng, M. Ripka, Haiping Peng, K. J. Li, G. F. Chen, S. Maldaner, G. A. Chelkov, H. B. Li, C. L. Luo, X. Xia, Q. Zhou, Zhiqing Zhang, M. Kuemmel, Matthew Glenn Kurth, F. Cossio, Tao Luo, H. R. Qi, Y. H. Zhang, C. P. Shen, S. L. Olsen, Z. Y. Wang, F. H. Liu, Nicolas Berger, J. W. Zhang, C. C. Zhang, B. Zhong, L. B. Guo, K. J. Zhu, Y. H. Yan, Y. T. Tan, R. Kliemt, J. Y. Zhang, W. Gradl, X. Y. Niu, X. N. Ma, Y. Yuan, Y. S. Zhu, A. Mangoni, A. Guskov, M. Y. Dong, J. W. Zhao, Lei Li, M.G. Alekseev, B. X. Yu, M. Shao, Y. T. Gu, Y. P. Guo, Jie Yu, A. N. Zhu, K. Begzsuren, Tao Zhang, X. Q. Hao, W. Imoehl, S. Nakhoul, D. Y. Wang, M. Qi, Y. C. Zhu, J. Chai, Shulei Zhang, F. Y. Li, Yu Zhang, J. H. Zou, T. J. Min, W. P. Wang, J. Q. Zhang, H. S. Chen, Alperen Yuncu, P. Larin, F. Bianchi, S. S. Sun, H. J. Yang, L. D. Liu, X. H. Liu, Yunlong Zhang, H. L. Liu, Xu Shan, H. L. Dai, Y. K. Heng, G. X. Sun, J. V. Bennett, G. Cibinetto, Serkant Ali Cetin, D. Bettoni, J. C. Li, Y. Q. Wang, Q. Liu, Tristan Weber, J. Zhuang, J. P. Dai, R. E. Mitchell, Li Yan, T. Held, J. J. Xu, Z. Q. Yang, J. L. Zhang, X. T. Huang, G. Rong, M. X. Luo, A. Sarantsev, B. Wang, D. H. Wei, P. R. Li, Bibo Ke, M. Fritsch, W. B. Yan, J. S. Lange, H. L. Jiang, D. V. Dedovich, Xu Zhou, L. L. Ma, S. Pacetti, Jianping Zheng, M. H. Ye, S. Zhu, L. Gong, M. Kavatsyuk, D. Y. Liu, M. G. Zhao, Y. H. Yang, R. P. Guo, J. Zhu, Ke Li, J. S. Huang, J. B. Jiao, Z. Jiao, D. H. Zhang, L. G. Xia, A. Amoroso, C. X. Liu, G. S. Huang, J. Min, S. X. Du, K. Y. Liu, L. Y. Dong, Huanhuan Liu, A. Dbeyssi, C. Sowa, H. B. Liu, M. Destefanis, G. Felici, B. Kopf, Y. B. Zhao, K. L. He, B. X. Zhang, Angelo Rivetti, Dan Wang, S. W. Han, Magnus Wolke, G. F. Xu, T. Khan, S. Jin, W. J. Zheng, Jimin Zhao, P. L. Li, J. F. Sun, Y. F. Liang, W. Shan, C. F. Redmer, D. P. Jin, S. Marcello, X. Y. Song, Y. Zeng, Zhe Sun, J. Dong, S. Lusso, S. Qian, Q. An, Jialun Ping, H. J. Li, N. Qin, F. Feldbauer, K. Zhang, X. Y. Zhang, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, Q. L. Xiu, Z. L. Huang, Feng Liu, J. J. Song, L. Sun, J. B. Liu, I. Uman, X. H. Mo, L. S. Wang, Y. J. Sun, Yifan Yang, E. Boger, M. Ablikim, X. Y. Jiang, S. Nisar, Y. P. Lu, Zongyuan Wang, L. L. Wang, H. Cai, C. J. Tang, Y. Hu, S. L. Yang, G. R. Liao, Q. Ouyang, S. S. Fang, Z. J. Xiao, Y. B. Liu, P. L. Chen, D. Xiao, Jun-Yi Zhang, D. W. Bennett, Zujian Wang, Zhiqing Liu, T. Johansson, J. F. Chang, Y. F. Wang, O. B. Kolcu, X. Cai, L. Lavezzi, M. Richter, Z. Ning, J. Libby, Yaquan Fang, M. Greco, Shou-hua Zhu, K. Schoenning, Q. Y. Li, B. S. Zou, H. Liang, Ke Liu, Q. A. Malik, G. Mezzadri, W. C. Yan, L. M. Gu, M. N. Achasov, L. P. Zhou, Y. M. Ma, Z. P. Mao, J. Fang, Tao Li, P. Kiese, Ch. Rosner, R. A. Briere, X. S. Jiang, J. Y. Liu, R. X. Yang, H. H. Wang, A. Pitka, Q. Gao, Y. N. Gao, Y. Zhang, T. Hussain, X. Y. Ma, W. X. Gong, Feng Yan, C. H. Li, X. H. Sun, Z. Gao, S. L. Niu, X. Q. Li, Y. F. Long, R. Farinelli, H. L. Ma, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, D. M. Li, H. Muramatsu, M. Pelizaeus, S. Ahmed, Y. X. Yang, Kang Li, Q. Zhao, Y. Z. Sun, I. K. Keshk, C. X. Lin, Alexander Leon Gilman, Gang Zhao, Xiaozhong Huang, Andrzej Kupsc, M. L. Chen, and F. Li
Subjects: Physics, Particle physics, Annihilation, 010308 nuclear & particles physics, Branching fraction, Hadron, 01 natural sciences, law.invention, law, 0103 physical sciences, Pi, 010306 general physics, Collider, Bar (unit)
Abstract: We report a study of the decay D0→K¯0π-e+νe based on a sample of 2.93 fb-1 e+e- annihilation data collected at the center-of-mass energy of 3.773 GeV with the BESIII detector at the BEPCII collider. The total branching fraction is determined to be B(D0→K¯0π-e+νe)=(1.434±0.029(stat.)±0.032(syst.))%, which is the most precise to date. According to a detailed analysis of the involved dynamics, we find this decay is dominated with the K*(892)- contribution and present an improved measurement of its branching fraction to be B(D0→K*(892)-e+νe)=(2.033±0.046(stat.)±0.047(syst.))%. We further access their hadronic form-factor ratios for the first time as rV=V(0)/A1(0)=1.46±0.07(stat.)±0.02(syst.) and r2=A2(0)/A1(0)=0.67±0.06(stat.)±0.01(syst.). In addition, we observe a significant K¯0π- S-wave component accounting for (5.51±0.97(stat.)±0.62(syst.))% of the total decay rate.
Published: 2019

15. Measurements of e+e−→KS0K±π∓π0 and KS0K±π∓η at center-of-mass energies from 3.90 to 4.60 GeV

Author: X. H. Liu, J. P. Dai, X. H. Mo, L. S. Wang, M. H. Ye, H. R. Qi, X. Tang, L. L. Wang, H. Cai, M. Richter, Z. Ning, Z. X. Meng, X. A. Xiong, Y. P. Guo, Y. Ding, H. B. Li, A. A. Zafar, Y. Fu, B. J. Liu, Serkant Ali Cetin, Y. H. Yan, J. W. Zhao, Y. C. Zhu, M. Rolo, X. Q. Hao, T. Held, Mario Greco, M. M. Ma, Y. H. Zheng, Cong-Feng Qiao, J. J. Xu, L. Koch, A. Khoukaz, X. K. Zhou, S. Nakhoul, W. Kühn, D. Y. Liu, Z. Q. Yang, K. H. Rashid, J. B. Jiao, Z. Y. You, Z. A. Zhu, N. Yu. Muchnoi, M. Albrecht, C. L. Luo, X. Xia, Q. Zhou, X. S. Kang, R. Baldini Ferroli, W. D. Li, B. T. Tsednee, F. Cossio, Y. T. Liang, P. Larin, Y. H. Zhang, L. Y. Dong, K. J. Zhu, N. Hsken, J. S. Huang, F. Li, S. J. Chen, Xiao-Rui Lyu, C. X. Liu, Z. Gao, S. L. Niu, J. Chai, Krisztian Peters, H. J. Lu, S. L. Olsen, A. Pitka, G. X. Sun, J. V. Bennett, Li Yan, T. Khan, J. F. Sun, M. Z. Wang, M. Qi, W. J. Zheng, C. C. Zhang, B. Zhong, L. B. Guo, F. C. Ma, H. Liang, J. G. Lu, C. P. Shen, H. J. Yang, Z. Jiao, Z. Y. Wang, D. H. Zhang, X. Q. Li, Q. P. Ji, Z. A. Liu, V. Prasad, T. Y. Qi, Y. F. Long, I. B. Nikolaev, X. N. Li, L. J. Wu, P. L. Wang, Y. J. Mo, Lei Li, S. Marcello, A. N. Zhu, J. H. Yin, F. E. Maas, Y. X. Xia, M. Shao, Y. T. Gu, Haiping Peng, X. L. Gao, J. F. Qiu, Magnus Wolke, M. Papenbrock, Y. F. Liang, T. Hu, Y. Zeng, Ke Wang, Y. Ban, Zhe Sun, S. Lusso, P. Weidenkaff, D. P. Jin, Jun-Yi Zhang, J. D. Lu, F. Feldbauer, G. F. Xu, Tao Zhang, Z. P. Zhang, L. Fava, X. L. Luo, F. Nerling, Z. L. Huang, O. Bakina, S. Jin, X. T. Huang, D. W. Bennett, Zujian Wang, J. Y. Liu, Xu Shan, A. Sarantsev, C. Dong, S. P. Wen, S. Sosio, Y. B. Chen, S. Qian, Q. An, Jialun Ping, Feng Liu, G. Rong, K. Zhang, X. Y. Zhang, I. R. Boyko, Yang Zhang, Ke Liu, N. Qin, D. H. Wei, P. R. Li, J. S. Lange, R. Poling, P. F. Duan, F. H. Heinsius, X. S. Qin, Y. G. Gao, P. X. Shen, X. L. Ji, Xiaofeng Zhu, J. Z. Zhang, M. Ablikim, Xiaozhong Huang, Liqing Xu, J. C. Li, Zhiqing Liu, K. Begzsuren, Q. A. Malik, G. Mezzadri, Z. Wu, J. B. Liu, C. Sowa, Y. B. Zhao, T. Johansson, J. F. Chang, X. R. Zhou, W. C. Yan, Cheng Li, W. Shan, X. Y. Shen, J. Zhuang, Joachim Pettersson, W. P. Wang, J. Dong, M. X. Luo, G. Y. Tang, Y. J. Sun, Yifan Yang, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, Y. F. Wang, Fenfen An, Zhiqing Zhang, D. V. Dedovich, X. Y. Song, Z. Y. Zhang, O. B. Kolcu, M. Bertani, Z. Haddadi, L. Yang, Andrzej Kupsc, B. L. Wang, F. Bianchi, T. C. Zhao, L. M. Gu, J. J. Song, L. Sun, Qiang Zhao, S. Nisar, Q. Gao, Y. N. Gao, Xu Zhou, L. H. Wu, M. N. Achasov, L. P. Zhou, Y. P. Lu, Y. Zhang, Meng Wang, Muhammad Irshad, X. Cai, L. Lavezzi, C. J. Tang, Y. Hu, Y. M. Ma, X. Y. Jiang, M. L. Chen, Feng Yan, Z. P. Mao, Jie Zhao, D. X. Lin, Yunlong Zhang, H. L. Liu, Alexey Zhemchugov, H. M. Hu, Tao Luo, Y. G. Xie, F. H. Liu, D. Xiao, K. Goetzen, M. Savrie, M. Kuemmel, Matthew Glenn Kurth, J. Z. Fan, D. Bettoni, T. Hussain, F. A. Harris, A. Calcaterra, Z. G. Zhao, S. Fegan, W. L. Chang, B. X. Yu, Z. L. Dou, J. Fang, Tao Li, J. L. Zhang, I. Uman, L. Z. Liao, Jianping Zheng, J. Q. Zhang, Y. T. Tan, X. Y. Ma, Nicolas Berger, W. Gradl, Yi Jin, H. Leithoff, Yu Bai, H. H. Zhang, W. X. Gong, J. W. Zhang, Z. J. Sun, S. Zhu, J. W. Li, R. Farinelli, X. P. Xu, X. B. Ji, Lingxuan Zhang, Shulei Zhang, D. Y. Wang, F. Y. Li, H. S. Chen, S. Maldaner, Alperen Yuncu, Z. J. Xiao, S. X. Du, P. L. Chen, Ch. Rosner, M. Tiemens, J. Min, H. B. Liu, Y. J. Xiao, H. L. Dai, H. L. Ma, X. N. Ma, J. Libby, P. Patteri, B. Kopf, K. Y. Liu, C. H. Li, Zongyuan Wang, X. H. Sun, M. Destefanis, D. M. Li, H. Muramatsu, M. H. Gu, R. Kiuchi, K. L. He, Yaquan Fang, M. Fritsch, S. W. Han, P. Kiese, Shou-hua Zhu, H. Y. Sheng, M. Kavatsyuk, C. X. Yu, R. A. Briere, M. Pelizaeus, Jimin Zhao, Fang Liu, S. Ahmed, Y. X. Yang, P. L. Li, U. Wiedner, I. Denysenko, B. X. Zhang, Q. Ouyang, G. S. Huang, B. Zheng, R. G. Ping, X. S. Jiang, R. Kliemt, C. F. Redmer, Dan Wang, S. S. Fang, A. Mangoni, A. Guskov, Y. B. Liu, K. Schoenning, Q. Y. Li, B. S. Zou, R. X. Yang, B. Y. Zhang, Huanhuan Liu, Jie Yu, S. L. Yang, G. Felici, Y. Z. Sun, T. J. Min, G. R. Liao, G. Cibinetto, B. Q. Wang, I. K. Keshk, M. Alekseev, W. S. Cheng, Yao Zhang, G. Li, M. Y. Dong, C. X. Lin, Alexander Leon Gilman, H. J. Li, Q. L. Xiu, C. D. Fu, F. De Mori, C. Q. Feng, A. Q. Guo, C. W. Wang, Z. Y. Deng, M. Ripka, X. Y. Zhou, M. Rump, Gang Zhao, Xingguo Li, X. F. Wang, W. M. Song, Q. M. Ma, J. H. Zou, A. Mustafa, S. S. Sun, Y. Yuan, Y. S. Zhu, Yu Zhang, R. E. Mitchell, Z. H. Qin, Q. Liu, Tristan Weber, X D Shi, Bibo Ke, L. L. Ma, W. B. Yan, Y. J. Mao, S. B. Liu, L. Gong, Y. Nefedov, H. X. Yang, I. Garzia, L. G. Xia, A. Amoroso, S. Pacetti, M. G. Zhao, Y. H. Yang, X. X. Ma, R. P. Guo, J. Zhu, A. Dbeyssi, Ke Li, M. Kornicer, Angelo Rivetti, A. Julin, Z. G. Wang, B. Garillon, Huihui Liu, H. Y. Zhang, G. F. Chen, J. G. Messchendorp, J. Y. Zhang, Y. K. Heng, S. J. Zhao, W. G. Li, A. G. Denig, Y. K. Sun, Q. J. Xu, Xiaoyu Zhou, J. C. Chen, Xuanhong Lou, S. Leiber, Nasser Kalantar-Nayestanaki, S. Spataro, C. Morales Morales, Yue Pan, H. M. Liu, J. F. Hu, G. F. Cao, Y. H. Xie, J. Pellegrino, M. Maggiora, Ling Zhao, Lei Zhao, Z. L. Hou, C. Z. Yuan, M. Kuessner, and G. A. Chelkov
Subjects: Physics, Nuclear physics, Annihilation, 010308 nuclear & particles physics, 0103 physical sciences, Detector, Pi, Resonance, Center of mass, 010306 general physics, 01 natural sciences, Measure (mathematics)
Abstract: Using 5.2 fb-1 e+e- annihilation data samples collected with the BESIII detector, we measure the cross sections of e+e-→KS0K±π∓π0 and KS0K±π∓η at center-of-mass energies from 3.90 to 4.60 GeV. In addition, we search for the charmoniumlike resonance Y(4260) decays into KS0K±π∓π0 and KS0K±π∓η, and Zc0,±(3900) decays into KS0K±π∓,0 and KS0K±η. Corresponding upper limits are provided since no clear signal is observed.
Published: 2019

16. Technical design report for the $\overline{{\rm{P}}}\mathrm{ANDA}$ Barrel DIRC detector

Author: B Singh, W Erni, B Krusche, M Steinacher, N Walford, B Liu, H Liu, Z Liu, X Shen, C Wang, J Zhao, M Albrecht, T Erlen, F Feldbauer, M Fink, M Fritsch, J Haase, F H Heinsius, T Held, T Holtmann, I Keshk, H Koch, B Kopf, M Kuhlmann, M Kümmel, S Leiber, M Mikirtychyants, P Musiol, A Mustafa, M Pelizäus, A Pitka, J Pychy, M Richter, C Schnier, T Schröder, C Sowa, M Steinke, T Triffterer, U Wiedner, M Ball, R Beck, C Hammann, B Ketzer, M Kube, P Mahlberg, M Rossbach, C Schmidt, R Schmitz, U Thoma, M Urban, D Walther, C Wendel, A Wilson, A Bianconi, M Bragadireanu, D Pantea, B Patel, W Czyzycki, M Domagala, G Filo, J Jaworowski, M Krawczyk, E Lisowski, F Lisowski, M Michałek, P Poznański, J Płażek, K Korcyl, A Kozela, P Kulessa, P Lebiedowicz, K Pysz, W Schäfer, A Szczurek, T Fiutowski, M Idzik, B Mindur, K Swientek, J Biernat, B Kamys, S Kistryn, G Korcyl, W Krzemien, A Magiera, P Moskal, A Pyszniak, Z Rudy, P Salabura, J Smyrski, P Strzempek, A Wronska, I Augustin, R Böhm, I Lehmann, D Nicmorus Marinescu, L Schmitt, V Varentsov, A Ali, M Al-Turany, A Belias, H Deppe, N Divani Veis, R Dzhygadlo, H Flemming, A Gerhardt, K Götzen, A Gromliuk, L Gruber, R Hohler, G Kalicy, R Karabowicz, R Kliemt, M Krebs, U Kurilla, D Lehmann, S Löchner, J Lühning, U Lynen, F Nerling, H Orth, M Patsyuk, K Peters, T Saito, G Schepers, C J Schmidt, C Schwarz, J Schwiening, A Täschner, M Traxler, C Ugur, B Voss, P Wieczorek, A Wilms, M Zühlsdorf, V Abazov, G Alexeev, V A Arefiev, V Astakhov, M Yu Barabanov, B V Batyunya, Y Davydov, V Kh Dodokhov, A Efremov, A Fechtchenko, A G Fedunov, A Galoyan, S Grigoryan, E K Koshurnikov, Y Yu Lobanov, V I Lobanov, A F Makarov, L V Malinina, V Malyshev, A G Olshevskiy, E Perevalova, A A Piskun, T Pocheptsov, G Pontecorvo, V Rodionov, Y Rogov, R Salmin, A Samartsev, M G Sapozhnikov, G Shabratova, N B Skachkov, A N Skachkova, E A Strokovsky, M Suleimanov, R Teshev, V Tokmenin, V Uzhinsky, A Vodopianov, S A Zaporozhets, N I Zhuravlev, A Zinchenko, D Branford, D Glazier, D Watts, M Böhm, A Britting, W Eyrich, A Lehmann, M Pfaffinger, F Uhlig, S Dobbs, K Seth, A Tomaradze, T Xiao, D Bettoni, V Carassiti, A Cotta Ramusino, P Dalpiaz, A Drago, E Fioravanti, I Garzia, M Savrie, V Akishina, S Gorbunov, I Kisel, G Kozlov, M Pugach, M Zyzak, P Gianotti, C Guaraldo, V Lucherini, A Bersani, G Bracco, M Macri, R F Parodi, K Biguenko, K T Brinkmann, V Di Pietro, S Diehl, V Dormenev, M Düren, E Etzelmüller, K Föhl, M Galuska, E Gutz, C Hahn, A Hayrapetyan, M Kesselkaul, K Kreutzfeldt, W Kühn, T Kuske, J S Lange, Y Liang, V Metag, M Moritz, M Nanova, R Novotny, T Quagli, S Reiter, A Riccardi, J Rieke, C Rosenbaum, M Schmidt, R Schnell, H Stenzel, U Thöring, M N Wagner, T Wasem, B Wohlfahrt, H G Zaunick, E Tomasi-Gustafsson, D Ireland, G Rosner, B Seitz, P N Deepak, A Kulkarni, A Apostolou, M Babai, M Kavatsyuk, P J Lemmens, M Lindemulder, H Loehner, J Messchendorp, P Schakel, H Smit, M Tiemens, J C van der Weele, R Veenstra, S Vejdani, K Dutta, K Kalita, A Kumar, A Roy, H Sohlbach, M Bai, L Bianchi, M Büscher, L Cao, A Cebulla, R Dosdall, A Erven, V Fracassi, A Gillitzer, F Goldenbaum, D Grunwald, A Herten, Q Hu, L Jokhovets, G Kemmerling, H Kleines, A Lai, A Lehrach, R Nellen, H Ohm, S Orfanitski, D Prasuhn, E Prencipe, J Pütz, J Ritman, E Rosenthal, S Schadmand, T Sefzick, V Serdyuk, G Sterzenbach, T Stockmanns, P Wintz, P Wüstner, H Xu, S Li, Z Li, Z Sun, V Rigato, L Isaksson, P Achenbach, A Aycock, O Corell, A Denig, M Distler, M Hoek, A Karavdina, W Lauth, H Merkel, U Müller, J Pochodzalla, S Sanchez, S Schlimme, C Sfienti, M Thiel, H Ahmadi, null S Ahmed, S Bleser, L Capozza, M Cardinali, A Dbeyssi, M Deiseroth, A Ehret, B Fröhlich, D Kang, D Khaneft, R Klasen, H H Leithoff, D Lin, F Maas, S Maldaner, M Martínez, M Michel, M C Mora Espí, C Morales Morales, C Motzko, O Noll, S Pflüger, D Rodríguez Piñeiro, A Sanchez-Lorente, M Steinen, R Valente, M Zambrana, I Zimmermann, A Fedorov, M Korjik, O Missevitch, A Balashoff, A Boukharov, O Malyshev, I Marishev, P Balanutsa, V Balanutsa, V Chernetsky, A Demekhin, A Dolgolenko, P Fedorets, A Gerasimov, V Goryachev, V Chandratre, V Datar, D Dutta, V Jha, H Kumawat, A K Mohanty, A Parmar, A K Rai, B Roy, G Sonika, C Fritzsch, S Grieser, A K Hergemöller, B Hetz, N Hüsken, A Khoukaz, J P Wessels, K Khosonthongkee, C Kobdaj, A Limphirat, P Srisawad, Y Yan, E Antokhin, A Yu Barnyakov, M Barnyakov, K Beloborodov, V E Blinov, V S Bobrovnikov, I A Kuyanov, K Martin, A P Onuchin, S Pivovarov, E Pyata, S Serednyakov, A Sokolov, Y Tikhonov, A E Blinov, S Kononov, E A Kravchenko, E Atomssa, R Kunne, D Marchand, B Ramstein, J van de Wiele, Y Wang, G Boca, S Costanza, P Genova, P Montagna, A Rotondi, M Bodlak, M Finger, A Nikolovova, M Pesek, M Peskova, M Pfeffer, I Prochazka, M Slunecka, P Gallus, V Jary, J Novy, M Tomasek, M Virius, V Vrba, V Abramov, N Belikov, S Bukreeva, A Davidenko, A Derevschikov, Y Goncharenko, V Grishin, V Kachanov, V Kormilitsin, A Levin, Y Melnik, N Minaev, V Mochalov, D Morozov, L Nogach, S Poslavskiy, A Ryazantsev, S Ryzhikov, P Semenov, I Shein, A Uzunian, A Vasiliev, A Yakutin, U Roy, B Yabsley, S Belostotski, G Gavrilov, A Izotov, S Manaenkov, O Miklukho, D Veretennikov, A Zhdanov, K Makonyi, M Preston, P E Tegner, D Wölbing, T Bäck, B Cederwall, S Godre, F Balestra, F Iazzi, R Introzzi, A Lavagno, J Olave, A Amoroso, M P Bussa, L Busso, M Destefanis, L Fava, L Ferrero, M Greco, J Hu, L Lavezzi, M Maggiora, G Maniscalco, S Marcello, S Sosio, S Spataro, D Calvo, S Coli, P De Remigis, A Filippi, G Giraudo, S Lusso, G Mazza, M Mignone, A Rivetti, R Wheadon, R Birsa, F Bradamante, A Bressan, A Martin, H Calen, W Ikegami Andersson, T Johansson, A Kupsc, P Marciniewski, M Papenbrock, J Pettersson, K Schönning, M Wolke, B Galnander, J Diaz, V Pothodi Chackara, A Chlopik, G Kesik, D Melnychuk, B Slowinski, A Trzcinski, M Wojciechowski, S Wronka, B Zwieglinski, P Bühler, J Marton, D Steinschaden, K Suzuki, E Widmann, S Zimmermann, and J Zmeskal
Subjects: Physics, Nuclear and High Energy Physics, Range (particle radiation), Large Hadron Collider, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Hadron, Detector, Barrel (horology), 7. Clean energy, 01 natural sciences, Ring-imaging Cherenkov detector, Particle identification, Charged particle, Nuclear physics, 0103 physical sciences, High Energy Physics::Experiment, ddc:530, 010306 general physics, Nuclear Experiment
Abstract: The $\overline{{\rm{P}}}\mathrm{ANDA}$ (anti-Proton ANnihiliation at DArmstadt) experiment will be one of the four flagship experiments at the new international accelerator complex FAIR (Facility for Antiproton and Ion Research) in Darmstadt, Germany. $\overline{{\rm{P}}}\mathrm{ANDA}$ will address fundamental questions of hadron physics and quantum chromodynamics using high-intensity cooled antiproton beams with momenta between 1.5 and 15 GeV/c and a design luminosity of up to 2 × 1032 cm−2 s−1. Excellent particle identification (PID) is crucial to the success of the $\overline{{\rm{P}}}\mathrm{ANDA}$ physics program. Hadronic PID in the barrel region of the target spectrometer will be performed by a fast and compact Cherenkov counter using the detection of internally reflected Cherenkov light (DIRC) technology. It is designed to cover the polar angle range from 22° to 140° and will provide at least 3 standard deviations (s.d.) π/K separation up to 3.5 GeV/c, matching the expected upper limit of the final state kaon momentum distribution from simulation. This documents describes the technical design and the expected performance of the $\overline{{\rm{P}}}\mathrm{ANDA}$ Barrel DIRC detector. The design is based on the successful BaBar DIRC with several key improvements. The performance and system cost were optimized in detailed detector simulations and validated with full system prototypes using particle beams at GSI and CERN. The final design meets or exceeds the PID goal of clean π/K separation with at least 3 s.d. over the entire phase space of charged kaons in the Barrel DIRC.
Published: 2019

17. Search for the decay Ds+ ??e+?e

Author: J. Libby, Y. Fu, Yaquan Fang, M. Greco, Shou-hua Zhu, J. H. Zou, Z. G. Wang, R. Kappert, Y. H. Yan, P. Kiese, Yuan Hou, Q. Q. Song, H. Y. Zhang, S. S. Sun, J. W. Zhao, Y. Ding, R. A. Briere, B. J. Liu, M. M. Ma, J. Chai, G. X. Sun, J. V. Bennett, Li Yan, X. Q. Hao, M. Qi, H. J. Yang, Z. Jiao, D. H. Zhang, E. M. Gersabeck, P. L. Wang, G. F. Chen, G. S. Huang, T. Y. Xing, Y. C. Zhu, G. F. Xu, S. Jin, Y. P. Guo, X. S. Jiang, S. Nakhoul, Tao Luo, H. B. Li, C. L. Luo, Q. Zhou, X. L. Luo, C.-H. Rosner, Jun-Yi Zhang, K. Schoenning, Q. Y. Li, B. S. Zou, W. Kühn, J. Y. Zhang, R. E. Mitchell, M. Kuessner, F. De Mori, Serkant Ali Cetin, P. Larin, R. X. Yang, H. H. Wang, Xiao-Rui Lyu, C. C. Zhang, B. Zhong, L. B. Guo, Q. A. Malik, G. Mezzadri, W. C. Yan, Z. P. Zhang, Yunlong Zhang, Z. Y. You, Z. A. Zhu, H. W. Wen, X. Y. Zhou, B. X. Yu, Zujian Wang, C. Sowa, Y. B. Zhao, Fang Liu, I. B. Nikolaev, Wei Xu, J. H. Yin, W. Shan, M. Shao, Y. T. Gu, D. Bettoni, J. Dong, Zhiqiang Liu, R. Kliemt, Qiang Zhao, Lei Li, S. Nisar, A. Pitka, M.G. Alekseev, A. N. Zhu, Tao Zhang, C. J. Tang, Y. Hu, K. Begzsuren, Y. P. Lu, J. L. Zhang, W. P. Wang, U. Wiedner, H. L. Jiang, I. Denysenko, L. M. Gu, A. Mangoni, M. N. Achasov, L. P. Zhou, A. Guskov, Jie Yu, F. Bianchi, Jianping Zheng, Y. M. Ma, Z. P. Mao, L. H. Wu, M. Richter, Z. Ning, S. Y. Xiao, X. Y. Song, Y. K. Heng, T. Khan, Shulei Zhang, F. Y. Li, Magnus Wolke, Y. F. Liang, D. P. Jin, H. S. Chen, Alperen Yuncu, M. Savrie, N. Hüsken, T. Y. Qi, J. Min, Y. F. Wang, Xu Shan, C. P. Shen, Yi Jin, H. B. Liu, B. Kopf, W. Imoehl, B. Y. Zhang, J. B. Jiao, J. Fang, J. W. Li, R. M. Wang, K. L. He, L. J. Wu, X. L. Ji, T. Held, X. F. Wang, Q. M. Ma, A. Mustafa, S. J. Zhao, T. J. Min, Xujin Yuan, K. J. Zhu, D. Y. Liu, Y. J. Xiao, S. X. Du, K. Y. Liu, H. L. Dai, J. Q. Zhang, T. Hussain, X. Y. Ma, A. Calcaterra, Z. G. Zhao, L. Z. Liao, X. H. Liu, Z. Y. Zhang, Y. J. Mo, S. B. Liu, H. J. Lu, J. G. Lu, N. Qin, Y. X. Xia, F. Feldbauer, Lingxuan Zhang, Yu Bai, W. X. Gong, H. H. Zhang, S. W. Han, Y. Yuan, Y. S. Zhu, G. Cibinetto, X. K. Zhou, A. Sarantsev, Matthew Glenn Kurth, D. H. Wei, P. R. Li, Bibo Ke, J. S. Lange, M. Destefanis, W. B. Yan, Y. Nefedov, X. L. Gao, Z. J. Sun, Jimin Zhao, P. L. Li, P. W. Luo, Q. J. Xu, Z. L. Huang, Y. G. Xie, Xiang-Gan Liu, M. H. Ye, F. E. Maas, T. Hu, S. Maldaner, J. P. Dai, J. C. Chen, Xuanhong Lou, Q. P. Ji, Viktor Thorén, I. R. Boyko, S. Pacetti, S. Leiber, O. Bakina, H. Liang, Ke Wang, H. H. Liu, J. C. Li, X. P. Qin, C. F. Redmer, Li Zhou, M. Ablikim, Liqing Xu, X. Y. Shen, X. Y. Jiang, Q. Ouyang, I. Uman, Nasser Kalantar-Nayestanaki, Y. G. Gao, Q. Liu, Tristan Weber, C. Dong, L. L. Ma, L. Gong, Z. L. Dou, S. Sosio, Z. Q. Yang, S. S. Fang, Ke Li, M. Bertani, P. X. Shen, J. Zhuang, J. D. Lu, L. G. Xia, C. H. Li, X. H. Sun, L. Y. Dong, L. Yang, Y. B. Liu, Z. Wu, M. X. Luo, D. V. Dedovich, S. L. Yang, A. Amoroso, G. Y. Tang, C. Morales Morales, F. F. Sui, Yue Pan, X. T. Huang, M. Albrecht, Zhiqing Zhang, J. S. Huang, S. Qian, Q. An, Jialun Ping, Jie Zhao, D. X. Lin, Z. Gao, M. H. Gu, R. Kiuchi, G. Felici, C. X. Liu, K. Zhang, X. Y. Zhang, Alexey Zhemchugov, H. M. Hu, A. Dbeyssi, S. L. Niu, G. Rong, F. H. Liu, H. Y. Sheng, W. D. Li, Z. J. Xiao, R. Poling, Z. X. Meng, F. H. Heinsius, Nicolas Berger, J. B. Liu, X. Q. Li, Y. F. Long, Joachim Pettersson, Ke Liu, X. P. Xu, X. B. Ji, Y. J. Sun, Yifan Yang, E. Boger, J. W. Zhang, X. A. Xiong, C. X. Yu, B. T. Tsednee, Fenfen An, Angelo Rivetti, H. J. Li, Dong E. Liu, P. Patteri, X. H. Li, Q. L. Xiu, Y. T. Tan, B. Zheng, R. G. Ping, K. Goetzen, A. A. Zafar, W. Gradl, X. N. Ma, B. L. Wang, Xingchao Dai, Y. H. Zheng, X. Tang, Xiaozhong Huang, Cong-Feng Qiao, X. H. Mo, T. C. Zhao, Z. A. Liu, L. S. Wang, M. Fritsch, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, X. L. Wang, W. S. Cheng, G. Li, V. Prasad, M. Kavatsyuk, G. R. Liao, Andrzej Kupsc, Y. Ban, P. Weidenkaff, K. H. Rashid, L. L. Wang, H. Cai, T. Johansson, J. F. Chang, N. Yu. Muchnoi, C. D. Fu, S. P. Wen, M. Rolo, C. Q. Feng, X. S. Qin, B. X. Zhang, M. L. Chen, X. S. Kang, L. Koch, A. Khoukaz, X. R. Zhou, Cheng Li, O. B. Kolcu, Z. Y. Deng, M. Ripka, Y. H. Zhang, M. G. Zhao, Y. H. Yang, X. X. Ma, X. Cai, L. Lavezzi, S. L. Olsen, R. Baldini Ferroli, R. P. Guo, J. Zhu, Y. T. Liang, Xingguo Li, S. J. Chen, F. Cossio, Krisztian Peters, Z. Y. Wang, Teresa Lenz, B. Q. Wang, M. Z. Wang, X. N. Li, Haiping Peng, W. G. Li, A. G. Denig, Y. K. Sun, J. F. Sun, S. Spataro, S. Marcello, Y. Zeng, Y. J. Lin, H. M. Liu, J. F. Hu, Zhe Sun, S. Lusso, G. F. Cao, X D Shi, Y. J. Mao, H. X. Yang, I. Garzia, G. A. Chelkov, Y. H. Xie, J. Pellegrino, M. Maggiora, Ling Zhao, Lei Zhao, Z. L. Hou, C. Z. Yuan, N. Cao, B. Garillon, Y. B. Chen, J. G. Messchendorp, Xiaofeng Zhu, J. Z. Zhang, A. Q. Guo, J. J. Song, L. Sun, C. W. Wang, Muhammad Irshad, Z. H. Qin, M. Kuemmel, X. F. Cui, W. J. Zhu, X. D. Shi, F. A. Harris, W. L. Chang, Dan Wang, R. Farinelli, H. Leithoff, F. Li, F. C. Ma, H. L. Ma, D. M. Li, H. Muramatsu, M. Pelizaeus, J. Y. Liu, Q. Gao, Y. N. Gao, Y. Zhang, Feng Yan, J. Z. Fan, T. Liu, J. F. Qiu, M. Papenbrock, S. Ahmed, Y. X. Yang, Kang Li, L. Fava, Y. Z. Sun, I. K. Keshk, F. Nerling, C. X. Lin, Alexander Leon Gilman, M. Rump, Gang Zhao, M. Y. Dong, and İstanbul Arel Üniversitesi
Subjects: Nuclear physics, Physics, Luminosity (scattering theory), Electron–positron annihilation, Detector, Radiative transfer, High Energy Physics::Experiment, Limit (mathematics), Photon energy, Energy (signal processing)
Abstract: A search for the rare radiative leptonic decay Ds+??e+?e is performed for the first time using electron-positron collision data corresponding to an integrated luminosity of 3.19 fb-1, collected with the BESIII detector at a center-of-mass energy of 4.178 GeV. No evidence for the Ds+??e+?e decay is seen, and an upper limit of B(Ds+??e+?e)0.01 GeV. © 2019 authors. Published by the American Physical Society.
Published: 2019

18. Study of doubly strange systems using stored antiprotons

Author: B. Singh, W. Erni, B. Krusche, M. Steinacher, N. Walford, B. Liu, H. Liu, Z. Liu, X. Shen, C. Wang, J. Zhao, M. Albrecht, T. Erlen, M. Fink, F. Heinsius, T. Held, T. Holtmann, S. Jasper, I. Keshk, H. Koch, B. Kopf, M. Kuhlmann, M. Kümmel, S. Leiber, M. Mikirtychyants, P. Musiol, A. Mustafa, M. Pelizäus, J. Pychy, M. Richter, C. Schnier, T. Schröder, C. Sowa, M. Steinke, T. Triffterer, U. Wiedner, M. Ball, R. Beck, C. Hammann, B. Ketzer, M. Kube, P. Mahlberg, M. Rossbach, C. Schmidt, R. Schmitz, U. Thoma, M. Urban, D. Walther, C. Wendel, A. Wilson, A. Bianconi, M. Bragadireanu, M. Caprini, D. Pantea, B. Patel, W. Czyzycki, M. Domagala, G. Filo, J. Jaworowski, M. Krawczyk, E. Lisowski, F. Lisowski, M. Michałek, P. Poznański, J. Płażek, K. Korcyl, A. Kozela, P. Kulessa, P. Lebiedowicz, K. Pysz, W. Schäfer, A. Szczurek, T. Fiutowski, M. Idzik, B. Mindur, D. Przyborowski, K. Swientek, J. Biernat, B. Kamys, S. Kistryn, G. Korcyl, W. Krzemien, A. Magiera, P. Moskal, A. Psyzniak, Z. Rudy, P. Salabura, J. Smyrski, P. Strzempek, A. Wronska, I. Augustin, R. Böhm, I. Lehmann, D. Nicmorus Marinescu, L. Schmitt, V. Varentsov, M. Al-Turany, A. Belias, H. Deppe, R. Dzhygadlo, A. Ehret, H. Flemming, A. Gerhardt, K. Götzen, A. Gromliuk, L. Gruber, R. Karabowicz, R. Kliemt, M. Krebs, U. Kurilla, D. Lehmann, S. Löchner, J. Lühning, U. Lynen, H. Orth, M. Patsyuk, K. Peters, T. Saito, G. Schepers, C.J. Schmidt, C. Schwarz, J. Schwiening, A. Täschner, M. Traxler, C. Ugur, B. Voss, P. Wieczorek, A. Wilms, M. Zühlsdorf, V.M. Abazov, G. Alexeev, A. Arefiev, V.I. Astakhov, M.Yu. Barabanov, B.V. Batyunya, Yu.I. Davydov, V.Kh. Dodokhov, A.A. Efremov, A. Fechtchenko, A.G. Fedunov, A. Galoyan, S. Grigoryan, E.K. Koshurnikov, V.I. Lobanov, Y.Yu. Lobanov, A.F. Makarov, L.V. Malinina, V.L. Malyshev, A. Olshevskiy, E. Perevalova, A.A. Piskun, T. Pocheptsov, G. Pontecorvo, V. Rodionov, Y. Rogov, R. Salmin, A. Samartsev, M.G. Sapozhnikov, G. Shabratova, N.B. Skachkov, A.N. Skachkova, E.A. Strokovsky, M. Suleimanov, R. Teshev, V. Tokmenin, V. Uzhinsky, A. Vodopyanov, S.A. Zaporozhets, N.I. Zhuravlev, A.G. Zorin, D. Branford, D. Glazier, D. Watts, M. Böhm, A. Britting, W. Eyrich, A. Lehmann, M. Pfaffinger, F. Uhlig, S. Dobbs, K. Seth, A. Tomaradze, T. Xiao, D. Bettoni, V. Carassiti, A. Cotta Ramusino, P. Dalpiaz, A. Drago, E. Fioravanti, I. Garzia, M. Savriè, V. Akishina, I. Kisel, G. Kozlov, M. Pugach, M. Zyzak, P. Gianotti, C. Guaraldo, V. Lucherini, A. Bersani, G. Bracco, M. Macri, R.F. Parodi, K. Biguenko, K. Brinkmann, V. Di Pietro, S. Diehl, V. Dormenev, P. Drexler, M. Düren, E. Etzelmüller, M. Galuska, E. Gutz, C. Hahn, A. Hayrapetyan, M. Kesselkaul, W. Kühn, T. Kuske, J.S. Lange, Y. Liang, V. Metag, M. Nanova, S. Nazarenko, R. Novotny, T. Quagli, S. Reiter, J. Rieke, C. Rosenbaum, M. Schmidt, R. Schnell, H. Stenzel, U. Thöring, M. Ullrich, M.N. Wagner, T. Wasem, B. Wohlfarth, H. Zaunick, D. Ireland, G. Rosner, B. Seitz, P.N. Deepak, A. Kulkarni, A. Apostolou, M. Babai, M. Kavatsyuk, P. Lemmens, M. Lindemulder, H. Loehner, J. Messchendorp, P. Schakel, H. Smit, M. Tiemens, J.C. van der Weele, R. Veenstra, S. Vejdani, K. Dutta, K. Kalita, A. Kumar, A. Roy, H. Sohlbach, M. Bai, L. Bianchi, M. Büscher, L. Cao, A. Cebulla, R. Dosdall, A. Gillitzer, F. Goldenbaum, D. Grunwald, A. Herten, Q. Hu, G. Kemmerling, H. Kleines, A. Lehrach, R. Nellen, H. Ohm, S. Orfanitski, D. Prasuhn, E. Prencipe, J. Pütz, J. Ritman, S. Schadmand, T. Sefzick, V. Serdyuk, G. Sterzenbach, T. Stockmanns, P. Wintz, P. Wüstner, H. Xu, A. Zambanini, S. Li, Z. Li, Z. Sun, V. Rigato, L. Isaksson, P. Achenbach, O. Corell, A. Denig, M. Distler, M. Hoek, A. Karavdina, W. Lauth, H. Merkel, U. Müller, J. Pochodzalla, S. Schlimme, C. Sfienti, M. Thiel, H. Ahmadi, S. Ahmed, S. Bleser, L. Capozza, M. Cardinali, A. Dbeyssi, M. Deiseroth, F. Feldbauer, M. Fritsch, B. Fröhlich, P. Jasinski, D. Kang, D. Khaneft, R. Klasen, H.H. Leithoff, D. Lin, F. Maas, S. Maldaner, M. Martìnez Rojo, M. Marta, M. Michel, M.C. Mora Espì, C. Morales Morales, C. Motzko, F. Nerling, O. Noll, S. Pflüger, A. Pitka, D. Rodríguez Piñeiro, A. Sanchez Lorente, M. Steinen, R. Valente, T. Weber, M. Zambrana, I. Zimmermann, A. Fedorov, M. Korjik, O. Missevitch, A. Boukharov, O. Malyshev, I. Marishev, P. Balanutsa, V. Balanutsa, V. Chernetsky, A. Demekhin, A. Dolgolenko, P. Fedorets, A. Gerasimov, V. Goryachev, V. Chandratre, V. Datar, D. Dutta, V. Jha, H. Kumawat, A.K. Mohanty, A. Parmar, B. Roy, G. Sonika, C. Fritzsch, S. Grieser, A.K. Hergemöller, B. Hetz, N. Hüsken, A. Khoukaz, J.P. Wessels, K. Khosonthongkee, C. Kobdaj, A. Limphirat, P. Srisawad, Y. Yan, M. Barnyakov, A.Yu. Barnyakov, K. Beloborodov, A.E. Blinov, V.E. Blinov, V.S. Bobrovnikov, S. Kononov, E.A. Kravchenko, I.A. Kuyanov, K. Martin, A.P. Onuchin, S. Serednyakov, A. Sokolov, Y. Tikhonov, E. Atomssa, R. Kunne, D. Marchand, B. Ramstein, J. Van de Wiele, Y. Wang, G. Boca, S. Costanza, P. Genova, P. Montagna, A. Rotondi, V. Abramov, N. Belikov, S. Bukreeva, A. Davidenko, A. Derevschikov, Y. Goncharenko, V. Grishin, V. Kachanov, V. Kormilitsin, A. Levin, Y. Melnik, N. Minaev, V. Mochalov, D. Morozov, L. Nogach, S. Poslavskiy, A. Ryazantsev, S. Ryzhikov, P. Semenov, I. Shein, A. Uzunian, A. Vasiliev, A. Yakutin, E. Tomasi-Gustafsson, U. Roy, B. Yabsley, S. Belostotski, G. Gavrilov, A. Izotov, S. Manaenkov, O. Miklukho, D. Veretennikov, A. Zhdanov, K. Makonyi, M. Preston, P. Tegner, D. Wölbing, T. Bäck, B. Cederwall, A.K. Rai, S. Godre, D. Calvo, S. Coli, P. De Remigis, A. Filippi, G. Giraudo, S. Lusso, G. Mazza, M. Mignone, A. Rivetti, R. Wheadon, F. Balestra, F. Iazzi, R. Introzzi, A. Lavagno, J. Olave, A. Amoroso, M.P. Bussa, L. Busso, F. De Mori, M. Destefanis, L. Fava, L. Ferrero, M. Greco, J. Hu, L. Lavezzi, M. Maggiora, G. Maniscalco, S. Marcello, S. Sosio, S. Spataro, R. Birsa, F. Bradamante, A. Bressan, A. Martin, H. Calen, W. Ikegami Andersson, T. Johansson, A. Kupsc, P. Marciniewski, M. Papenbrock, J. Pettersson, K. Schönning, M. Wolke, B. Galnander, J. Diaz, V. Pothodi Chackara, A. Chlopik, G. Kesik, D. Melnychuk, B. Slowinski, A. Trzcinski, M. Wojciechowski, S. Wronka, B. Zwieglinski, P. Bühler, J. Marton, D. Steinschaden, K. Suzuki, E. Widmann, J. Zmeskal, Jürgen Gerl, Ivan Kojouharov, Jasmina Kojouharova, and Research unit Nuclear & Hadron Physics
Subjects: Particle physics, Nuclear and High Energy Physics, COLLISIONS, Strong interaction, Nuclear Theory, hyperatoms, Antiprotons, Hyperatoms, Hypernuclei, Strangeness, EXCHANGE CURRENTS, 01 natural sciences, Partícules (Física nuclear), NO, Nuclear physics, Subatomär fysik, Hypemuclei, strangeness, DECUPLET BARYONS, ELECTRIC QUADRUPOLE-MOMENTS, 0103 physical sciences, Subatomic Physics, 010306 general physics, Nuclear Experiment, Physics, hypernuclei, NUCLEI, 010308 nuclear & particles physics, Hyperon, Transport theory, DOUBLE-LAMBDA-HYPERNUCLEI, MODEL, OMEGA, Antiproton, Physics::Accelerator Physics, Heavy ion, High Energy Physics::Experiment, antiprotons, INTERMEDIATE ENERGIES, EMULSION
Abstract: Bound nuclear systems with two units of strangeness are still poorly known despite their importance for many strong interaction phenomena. Stored antiprotons beams in the GeV range represent an unparalleled factory for various hyperon-antihyperon pairs. Their outstanding large production probability in antiproton collisions will open the floodgates for a series of new studies of systems which contain two or even more units of strangeness at the PANDA experiment at FAIR. For the first time, high resolution gamma-spectroscopy of doubly strange Lambda Lambda-hypernuclei will be performed, thus complementing measurements of ground state decays of Lambda Lambda-hypernuclei at J-PARC or possible decays of particle unstable hypernuclei in heavy ion reactions. High resolution spectroscopy of multistrange Xi(-) -atoms will be feasible and even the production of Omega(-) -atoms will be within reach. The latter might open the door to the vertical bar S vertical bar = 3 world in strangeness nuclear physics, by the study of the hadronic Omega(-) -nucleus interaction. For the first time it will be possible to study the behavior of Xi(+) in nuclear systems under well controlled conditions. (C) 2016 Elsevier B.V. All rights reserved.
Published: 2016

19. First measurement of e+e−→pKS0n¯K−+c.c. above open charm threshold

Author: Bibo Ke, W. B. Yan, Karin Schönning, D. Y. Liu, J. B. Jiao, R. Farinelli, C. F. Redmer, S. B. Liu, Stephen Lars Olsen, L. Zhang, Y. Nefedov, M. Albrecht, S. Pacetti, A. Zhemchugov, H. L. Ma, D. M. Li, X. T. Huang, W. D. Li, H. Muramatsu, H. J. Lu, J. G. Lu, M. Pelizaeus, B. T. Tsednee, J. Z. Bai, M. G. Zhao, Y. H. Yang, Ke Li, Cui Li, X. N. Ma, R. P. Guo, J. Zhu, Y. T. Liang, F. E. Maas, T. Hu, B. Wang, J. J. Xu, Z. Q. Yang, M. Y. Dong, O. Bakina, M. Kavatsyuk, H. B. Liu, F. Li, F. C. Ma, S. Ahmed, Y. X. Yang, Kang Li, J. H. Zou, Z. X. Meng, X. A. Xiong, A. A. Zafar, S. S. Sun, X. B. Ji, M. Tiemens, S. Qian, Q. An, Jialun Ping, K. Zhang, P. X. Shen, Z. Wu, B. X. Zhang, X. Liu, H. R. Qi, P. Patteri, X. Y. Zhang, J. B. Liu, Serkant Ali Cetin, J. S. Huang, Y. H. Zheng, Cong-Feng Qiao, X. S. Qin, Y. J. Sun, Yifan Yang, E. Boger, Q. Zhao, Y. Z. Sun, Y. P. Lu, Zhiqing Zhang, C. X. Liu, K. H. Rashid, Xiang Zhou, I. K. Keshk, I. Tapan, T. Khan, Y. H. Yan, J. F. Qiu, N. Yu. Muchnoi, L. Fava, Bingxuan Liu, X. S. Kang, R. E. Mitchell, S. Jin, P. Kiese, J. W. Zhao, C. X. Lin, Gang Zhao, H. Liang, Y. H. Zhang, W. S. Cheng, Yao Zhang, X. K. Zhou, Fang Liu, S. J. Chen, Y. Ban, P. Weidenkaff, F. H. Heinsius, L. Koch, A. Khoukaz, I. B. Nikolaev, Y. C. Zhu, S. P. Wen, F. Feldbauer, X. H. Mo, I. Denysenko, L. S. Wang, G. Li, Z. L. Huang, Z. G. Wang, H. Y. Zhang, Feng Liu, Haiwen Liu, A. Gilman, R. Baldini Ferroli, K. J. Li, W. C. Yan, V. Prasad, M. H. Ye, M. Ablikim, S. Han, X. R. Zhou, C. D. Fu, C. Q. Feng, Cheng Li, Yi-Tao Wang, Z. Y. Wang, Yang Zhang, R. A. Briere, K. Goetzen, G. F. Chen, W. Kuehn, B. Y. Zhang, X. R. Chen, J. Y. Zhang, Z. Y. Deng, X. S. Jiang, J. Y. Liu, T. Held, M. Fritsch, I. Uman, Q. Liu, L. H. Wu, X. K. Chu, M. Savrie, Y. K. Heng, K. Peters, L. L. Wang, H. Cai, X. N. Li, Xingguo Li, Haiping Peng, Yi Jin, J. W. Li, L. Xia, Ke Wang, Q. Gao, Y. N. Gao, Y. J. Xiao, J. F. Hu, Jianhao Zhang, L. L. Ma, S. J. Zhao, L. Gong, Zhiyong Zhang, Ke Liu, A. Amoroso, P. Larin, P. L. Wang, Muhammad Irshad, Q. A. Malik, G. Mezzadri, R. Poling, Q. J. Xu, R. Kliemt, J. L. Zhang, O. Cakir, J. C. Chen, Xuanhong Lou, X. Y. Niu, P. F. Duan, M. H. Gu, R. Kiuchi, Fenfen An, S. Leiber, A. Mangoni, A. Guskov, S. Nakhoul, A. Dbeyssi, B. L. Wang, Y. F. Wang, X. Q. He, Nasser Kalantar-Nayestanaki, T. Y. Qi, L. M. Gu, M. N. Achasov, L. P. Zhou, T. C. Zhao, Jie Yu, H. Y. Sheng, Y. M. Ma, C. Morales Morales, Z. P. Mao, C. X. Yu, Y. X. Xia, S. H. Zhu, H. Leithoff, Tao Luo, M. Kornicer, Angelo Rivetti, K. J. Zhu, T. Hussain, B. X. Yu, J. Fang, Tao Li, L. D. Liu, L. Y. Dong, B. Zheng, Z. Gao, R. G. Ping, A. Julin, X. Y. Ma, W. X. Gong, G. Cibinetto, Ch. Rosner, H. S. Chen, W. J. Zheng, F. Nerling, G. Y. Tang, F. De Mori, Jie Zhao, D. X. Lin, J. H. Yin, M. Shao, Y. T. Gu, H. L. Dai, Igor Boyko, J. Libby, Meng Wang, X. H. Sun, X. Y. Zhou, Yaquan Fang, H. M. Hu, E. Fioravanti, G. F. Xu, J. Q. Zhang, S. L. Niu, A. Pitka, F. Y. Li, X. Q. Li, Y. F. Long, X. F. Wang, M. Greco, M. Alekseev, A. Sarantsev, D. H. Wei, P. R. Li, J. S. Lange, Q. M. Ma, Q. Y. Li, B. S. Zou, Niklaus Berger, A. Mustafa, K. Y. Liu, Y. Yuan, Y. S. Zhu, Yu Zhang, S. Q. Qu, Z. B. Li, X. Y. Song, Tord Johansson, J. C. Li, J. Zhuang, M. X. Luo, D. V. Dedovich, Xu Zhou, A. Calcaterra, Z. G. Zhao, S. Fegan, L. Z. Liao, H. H. Zhang, Z. J. Sun, Zhiqing Liu, S. Maldaner, H. B. Li, A. G. Denig, J. F. Chang, C. L. Luo, X. Xia, Q. Zhou, C. C. Zhang, B. Zhong, L. B. Guo, A. N. Zhu, Ulrich Wiedner, Tao Zhang, R. X. Yang, T. Ma, Xu Shan, O. B. Kolcu, X. Cai, L. Lavezzi, X. Q. Hao, M. Richter, Z. Ning, Yunlong Zhang, G. R. Liao, Huanhuan Liu, H. L. Liu, D. Bettoni, G. Felici, M. Kuemmel, Matthew Glenn Kurth, W. Shan, Jianping Zheng, S. Zhu, T. J. Min, Dan Wang, M. Destefanis, J. F. Sun, S. F. Zhang, X. L. Gao, S. Marcello, Y. Zeng, F. A. Harris, Zhe Sun, S. Lusso, C. Dong, S. Sosio, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, J. J. Song, L. Sun, Joachim Pettersson, X. Tang, M. Rolo, H. J. Li, F. Cossio, Q. L. Xiu, Zongyuan Wang, Q. Ouyang, S. S. Fang, Y. B. Liu, X. L. Luo, K. Begzsuren, F. Bianchi, C. Sowa, Y. B. Zhao, J. Dong, S. Nisar, C. J. Tang, Y. Hu, Z. A. Liu, D. Xiao, Y. H. Xie, J. Pellegrino, M. Maggiora, Ling Zhao, W. M. Song, Lei Zhao, Z. L. Hou, Jun-Yi Zhang, C. Z. Yuan, Y. P. Guo, Z. P. Zhang, Guangshun Huang, L. Yan, M. Kuessner, P. L. Chen, D. W. Bennett, Zujian Wang, Y. Bai, M. Qi, H. J. Yang, X. Y. Jiang, Y. Zhang, Y. Pan, J. Min, B. Kopf, J. Chai, G. X. Sun, J. V. Bennett, K. L. He, M. Z. Wang, Jimin Zhao, Z. Jiao, Fu-Hu Liu, D. H. Zhang, P. L. Li, M. Bertani, Z. Haddadi, L. Yang, X. L. Ji, G. A. Chelkov, Y. T. Tan, W. Gradl, M. Ripka, A. Q. Guo, Z. Y. Peng, C. W. Wang, G. Rong, D. Y. Wang, A. Yuncu, Y. G. Xie, S. X. Du, Z. L. Dou, W. P. Wang, Z. H. Qin, Xiao-Rui Lyu, Y. Ding, W. G. Li, Y. K. Sun, B. J. Liu, Xiaoyu Zhou, Q. P. Ji, S. Spataro, Y. G. Gao, X. P. Xu, Lei Li, Walter Ikegami Andersson, Z. Y. You, Z. A. Zhu, G. F. Cao, X D Shi, Y. J. Mao, H. X. Yang, T. Weber, I. Garzia, B. Garillon, Huihui Liu, C. P. Shen, L. J. Wu, J. G. Messchendorp, J. P. Dai, Y. J. Mo, Liqing Xu, X. Y. Shen, Magnus Wolke, Y. F. Liang, D. P. Jin, Dayong Wang, N. Qin, Michael Papenbrock, F. Yan, Z. J. Xiao, Minglin Ma, Xiaozhong Huang, Andrzej Kupsc, and M. L. Chen
Subjects: Nuclear physics, Physics, 010308 nuclear & particles physics, visual_art, Electron–positron annihilation, 0103 physical sciences, visual_art.visual_art_medium, Bark, Open charm, Born approximation, 010306 general physics, 01 natural sciences
Abstract: The process e(+)e(-) -> pK(S)(0)(n) over barK(-) + c.c. and its intermediate processes are studied for the first time, using data samples collected with the BESIII detector at BEPCII at center-o ...
Published: 2018

20. Observation of the Semileptonic Decay D0→a0(980)−e+νe and Evidence for D+→a0(980)0e+νe

Author: Q. Liu, X. L. Ji, Y. H. Yan, L. L. Ma, A. Calcaterra, Z. G. Zhao, L. Z. Liao, J. W. Zhao, W. G. Li, S. J. Zhao, Magnus Wolke, F. De Mori, Y. C. Zhu, L. Gong, L. G. Xia, A. Amoroso, A. Dbeyssi, Y. G. Xie, X. F. Wang, Angelo Rivetti, I. K. Keshk, H. H. Zhang, Q. M. Ma, A. Mustafa, X. Y. Niu, Y. Yuan, H. Liang, Y. S. Zhu, Yu Zhang, Y. K. Sun, Xiaoyu Zhou, T. Y. Qi, Y. F. Liang, D. P. Jin, F. Li, F. C. Ma, Z. J. Sun, Q. P. Ji, S. Spataro, X. P. Xu, E. Boger, Bingxuan Liu, W. S. Cheng, Yao Zhang, G. Li, S. X. Du, M. Fritsch, J. Min, S. Maldaner, T. Held, Dayong Wang, N. Qin, Q. J. Xu, M. Y. Dong, Y. F. Wang, L. Koch, A. Khoukaz, Y. X. Xia, S. H. Zhu, X. K. Chu, H. B. Li, J. F. Sun, H. B. Liu, Lei Li, H. M. Liu, R. Baldini Ferroli, A. Gilman, C. D. Fu, X. Liu, J. C. Chen, Xuanhong Lou, Z. L. Dou, J. H. Zou, A. G. Denig, C. L. Luo, Xiaozhong Huang, Nasser Kalantar-Nayestanaki, Y. H. Xie, J. Pellegrino, X. K. Zhou, J. F. Qiu, Q. Zhou, J. Y. Liu, C. Q. Feng, T. Hussain, S. Leiber, P. L. Wang, S. Marcello, Y. Zeng, Ke Liu, X. R. Chen, Z. Y. Deng, C. C. Zhang, L. Fava, S. S. Sun, C. Morales Morales, Yue Pan, S. L. Olsen, X. Y. Ma, Serkant Ali Cetin, M. Maggiora, G. F. Cao, Ling Zhao, Y. H. Zheng, B. Zhong, L. B. Guo, W. X. Gong, Andrzej Kupsc, B. Kopf, Zhe Sun, S. Lusso, Cong-Feng Qiao, Lei Zhao, X. N. Li, L. J. Wu, J. Libby, K. L. He, Xingguo Li, X. S. Qin, M. Albrecht, H. Muramatsu, A. N. Zhu, Ulrich Wiedner, Xiao-Rui Lyu, Z. L. Hou, Q. Gao, Zhiqing Liu, Y. N. Gao, Haiping Peng, M. L. Chen, W. D. Li, X D Shi, N. Yu. Muchnoi, Y. Zhang, Tao Zhang, Yaquan Fang, I. Uman, Yang Zhang, Y. J. Mao, Y. B. Chen, S. B. Liu, L. Zhang, X. S. Kang, X. L. Luo, A. Pitka, Y. H. Zhang, Ke Wang, J. F. Hu, S. Qian, Q. An, Jialun Ping, Y. Nefedov, R. E. Mitchell, Xiaofeng Zhu, J. Z. Zhang, B. T. Tsednee, K. Zhang, X. Y. Zhang, M. Z. Wang, Y. J. Mo, H. X. Yang, I. Garzia, S. Nakhoul, Xu Shan, J. J. Song, L. K. Li, L. Sun, X. Tang, T. Johansson, J. F. Chang, J. C. Li, Michael Papenbrock, Bibo Ke, F. Yan, A. Yuncu, Y. G. Gao, J. Zhu, Jimin Zhao, Z. Y. Wang, M. Rolo, X. H. Sun, Fenfen An, P. L. Li, K. Schoenning, Q. Y. Li, B. S. Zou, J. Z. Fan, Niklaus Berger, J. B. Liu, Y. J. Sun, Yifan Yang, K. Begzsuren, Zhiyong Zhang, W. B. Yan, M. N. Achasov, B. L. Wang, M. G. Zhao, Y. H. Yang, R. P. Guo, Y. P. Lu, O. B. Kolcu, P. W. Luo, H. J. Lu, J. G. Lu, Q. A. Malik, B. Garillon, Huihui Liu, Meng Wang, Muhammad Irshad, G. Mezzadri, Z. J. Xiao, P. Larin, T. C. Zhao, C. Z. Yuan, J. Zhuang, Z. Gao, W. Imoehl, J. Q. Zhang, X. Cai, S. L. Niu, M. Kuemmel, Matthew Glenn Kurth, X. B. Ji, M. Tiemens, P. Patteri, M. X. Luo, D. V. Dedovich, Xu Zhou, S. Pacetti, Shan Jin, K. Goetzen, Cui Li, W. Shan, L. Lavezzi, W. P. Wang, R. Farinelli, F. Bianchi, Z. A. Liu, J. B. Jiao, Dean Liu, F. E. Maas, F. Cossio, L. P. Zhou, X. Q. Hao, F. Y. Li, X. Q. Li, J. G. Messchendorp, T. Hu, Y. F. Long, M. Greco, R. Kliemt, Y. M. Ma, Tao Luo, T. Khan, J. P. Dai, Z. G. Wang, Ke Li, H. Y. Zhang, Z. P. Mao, F. A. Harris, A. Mangoni, A. Guskov, K. J. Zhu, W. L. Chang, B. X. Yu, J. Fang, Jie Yu, V. Prasad, H. L. Ma, Fang Liu, G. F. Chen, D. M. Li, I. Denysenko, O. Bakina, H. Leithoff, G. Y. Tang, D. Y. Liu, W. C. Yan, M. Bertani, J. Y. Zhang, A. Q. Guo, Z. Y. Peng, C. W. Wang, Ch. Rosner, Krisztian Peters, F. Feldbauer, L. Yan, M. Kuessner, H. S. Chen, Z. L. Huang, Feng Liu, B. Y. Zhang, Huanhuan Liu, M. Pelizaeus, Y. Ban, P. Weidenkaff, F. H. Heinsius, G. Felici, S. Ahmed, Y. X. Yang, S. F. Zhang, Jie Zhao, D. X. Lin, S. L. Yang, G. Cibinetto, K. Y. Liu, Liqing Xu, H. L. Dai, Igor Boyko, X. Y. Shen, S. Q. Qu, Z. B. Li, J. J. Xu, M. Ablikim, W. Ikegami Andersson, G. R. Liao, P. X. Shen, Z. Wu, L. Yang, Kang Li, Z. Q. Yang, C. F. Redmer, Alexey Zhemchugov, H. M. Hu, M. Richter, Z. Ning, B. Q. Wang, Yunlong Zhang, L. M. Gu, Y. Ding, Y. K. Heng, X. T. Huang, G. A. Chelkov, J. S. Huang, H. L. Liu, P. Kiese, S. P. Wen, H. J. Li, Z. H. Qin, B. J. Liu, R. A. Briere, D. Bettoni, Q. L. Xiu, G. Rong, Q. Zhao, Y. Z. Sun, J. W. Zhang, C. X. Liu, Z. X. Meng, X. A. Xiong, X. N. Ma, P. R. Li, Zhiqing Zhang, G. S. Huang, X. S. Jiang, Xiang Zhou, M. Alekseev, A. A. Zafar, Zongyuan Wang, R. Poling, X. R. Zhou, C. X. Lin, M. Rump, Gang Zhao, H. L. Jiang, Q. Ouyang, R. X. Yang, H. H. Wang, K. H. Rashid, S. S. Fang, M. Kavatsyuk, Jianping Zheng, Y. B. Liu, G. F. Xu, Y. T. Liang, Y. T. Tan, Cheng Li, S. J. Chen, B. X. Zhang, K. J. Li, W. Gradl, M. Ripka, S. Han, D. Y. Wang, M. Qi, X. Y. Song, H. J. Yang, T. J. Min, L. H. Wu, M. Savrie, Yi Jin, J. W. Li, Y. J. Xiao, M. Destefanis, X. L. Gao, C. Dong, S. Sosio, W. Kühn, Z. Y. You, Z. A. Zhu, J. L. Zhang, T. Weber, C. P. Shen, F. F. Sui, Joachim Pettersson, M. H. Gu, R. Kiuchi, H. Y. Sheng, C. X. Yu, B. Zheng, R. G. Ping, Jun-Yi Zhang, Y. P. Guo, Z. P. Zhang, D. W. Bennett, Zujian Wang, Y. Bai, X. Y. Jiang, M. M. Ma, Zahra Haddadi, J. Chai, G. X. Sun, J. V. Bennett, Z. Jiao, Fu-Hu Liu, D. H. Zhang, C. Sowa, Y. B. Zhao, J. Dong, S. Nisar, C. J. Tang, Y. Hu, X. H. Mo, L. S. Wang, M. H. Ye, L. L. Wang, H. Cai, I. B. Nikolaev, J. H. Yin, M. Shao, Y. T. Gu, A. Sarantsev, D. H. Wei, J. S. Lange, L. D. Liu, L. Y. Dong, and F. Nerling
Subjects: Nuclear physics, Physics, Semileptonic decay, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Detector, General Physics and Astronomy, 010306 general physics, 01 natural sciences, Energy (signal processing)
Abstract: Using an e(+)e(-) collision data sample of 2.93 fb(-1) collected at a center-of-mass energy of 3.773 GeV by the BESIII detector at BEPCII, we report the observation of D-0 -> a(0)(980)(-)e(+)nu( ...
Published: 2018

21. Search for invisible decays of ω and ϕ with J/ψ data at BESIII

Author: H. Liang, Q. Liu, Tristan Weber, M. Y. Dong, L. L. Ma, L. Gong, Q. P. Ji, L. G. Xia, Huanhuan Liu, G. Felici, J. H. Zou, A. Amoroso, M. Qi, H. J. Yang, S. S. Sun, M. Richter, A. Dbeyssi, D. Y. Liu, R. Farinelli, L. Y. Dong, L. H. Wu, Ke Liu, Z. Ning, M. Kornicer, Angelo Rivetti, X. L. Ji, J. B. Jiao, S. J. Zhao, B. J. Liu, R. E. Mitchell, M. Savrie, Yi Jin, A. Julin, Xiao-Rui Lyu, Z. Y. Zhang, Y. G. Xie, Y. F. Wang, H. L. Ma, M. H. Gu, M. Kuessner, R. Kiuchi, H. J. Li, W. J. Zheng, Q. J. Xu, J. C. Chen, Xuanhong Lou, L. J. Wu, Q. L. Xiu, Q. A. Malik, G. Mezzadri, W. C. Yan, Z. L. Dou, H. Y. Sheng, J. W. Li, D. M. Li, T. Hussain, H. Muramatsu, Y. J. Xiao, Y. H. Zheng, C. X. Yu, S. Leiber, X. Y. Ma, W. X. Gong, Cong-Feng Qiao, X. K. Zhou, X. Q. He, Y. J. Mo, N. Yu. Muchnoi, X. S. Kang, Nasser Kalantar-Nayestanaki, C. Morales Morales, F. De Mori, B. Zheng, R. G. Ping, L. M. Gu, M. Pelizaeus, M. N. Achasov, L. P. Zhou, G. A. Chelkov, Yue Pan, Y. H. Zhang, Y. M. Ma, S. L. Olsen, A. Pitka, C. H. Li, X. H. Sun, I. B. Nikolaev, J. H. Yin, M. Bertani, Zhiqing Liu, Z. A. Liu, Bibo Ke, X. Y. Zhou, Zongyuan Wang, V. Prasad, Z. P. Mao, H. J. Lu, M. Shao, Y. T. Gu, W. B. Yan, S. Ahmed, Y. X. Yang, X. P. Xu, X. B. Ji, M. Tiemens, Kang Li, L. Yang, J. Fang, Tao Li, S. B. Liu, Y. Nefedov, Z. Y. Wang, J. G. Lu, F. Li, T. Johansson, Y. Ban, P. Weidenkaff, J. F. Chang, S. Qian, Q. An, Jialun Ping, Q. Ouyang, K. Zhang, P. Patteri, X. N. Ma, X. F. Wang, I. R. Boyko, E. Fioravanti, Z. Gao, Ch. Rosner, S. L. Niu, Y. H. Xie, S. P. Wen, J. Pellegrino, X. H. Liu, S. S. Fang, X. Q. Li, C. Sowa, X. Tang, Q. M. Ma, Y. F. Long, S. Pacetti, Y. B. Zhao, O. B. Kolcu, Y. B. Liu, X. Y. Zhang, X. S. Qin, X. R. Zhou, J. P. Dai, F. C. Ma, A. Mustafa, X. Cai, P. L. Wang, Liqing Xu, M. G. Zhao, Y. H. Yang, R. P. Guo, J. Libby, J. Zhu, X. Y. Shen, J. B. Liu, A. Sarantsev, Cheng Li, Yaquan Fang, Shou-hua Zhu, Ling Zhao, W. Shan, L. Lavezzi, X. T. Huang, R. Kliemt, X. Y. Niu, Q. Zhao, X. L. Luo, D. H. Wei, P. R. Li, Y. Z. Sun, J. S. Lange, Y. T. Tan, W. Gradl, Lei Zhao, Z. L. Hou, F. E. Maas, Y. Yuan, Y. J. Sun, Yifan Yang, E. Boger, Y. S. Zhu, Y. Ding, Ke Li, K. Begzsuren, Z. G. Wang, H. Y. Zhang, J. Dong, Yu Zhang, Y. P. Lu, S. Q. Qu, Z. B. Li, G. Rong, W. Ikegami Andersson, W. P. Wang, F. Bianchi, A. Mangoni, Z. X. Meng, X. A. Xiong, I. K. Keshk, A. Guskov, Jie Yu, M. Rolo, X. K. Chu, D. Y. Wang, A. A. Zafar, M. Fritsch, G. F. Chen, J. F. Qiu, T. Hu, M. Papenbrock, Fang Liu, J. Min, W. Kühn, K. Schoenning, Q. Y. Li, B. S. Zou, Z. Y. You, Z. A. Zhu, P. Kiese, L. Fava, H. B. Liu, R. A. Briere, G. S. Huang, C. X. Lin, J. Y. Zhang, S. Nisar, X. S. Jiang, S. L. Yang, U. Wiedner, I. Denysenko, X. H. Mo, L. S. Wang, M. Kavatsyuk, B. Kopf, C. J. Tang, Alexander Leon Gilman, C. P. Shen, Gang Zhao, T. J. Min, K. J. Zhu, Y. Hu, K. H. Rashid, R. X. Yang, Y. K. Heng, M. H. Ye, T. Y. Qi, C. Z. Yuan, K. L. He, S. W. Han, F. Cossio, Lingxuan Zhang, O. Bakina, G. R. Liao, B. Y. Zhang, G. Cibinetto, J. Y. Liu, H. R. Qi, Jimin Zhao, P. L. Li, Y. P. Guo, Y. T. Liang, L. L. Wang, H. Cai, Serkant Ali Cetin, S. J. Chen, X. L. Gao, B. X. Zhang, M. Alekseev, W. S. Cheng, Yao Zhang, C. F. Redmer, G. Li, Y. X. Xia, P. X. Shen, Q. Gao, Y. N. Gao, C. Dong, Y. Zhang, S. Sosio, Z. Wu, C. D. Fu, C. Q. Feng, X. R. Chen, T. Khan, Feng Yan, K. J. Li, Z. Y. Deng, M. Ripka, Joachim Pettersson, Xingguo Li, B. Q. Wang, D. Xiao, Yunlong Zhang, H. L. Liu, Zhiqing Zhang, D. Bettoni, J. L. Zhang, Jianping Zheng, S. Zhu, S. X. Du, K. Y. Liu, M. Destefanis, F. Feldbauer, Z. L. Huang, Feng Liu, J. Q. Zhang, Y. G. Gao, Jun-Yi Zhang, Z. P. Zhang, M. Ablikim, G. Y. Tang, X. Y. Jiang, Y. H. Yan, Jie Zhao, D. X. Lin, J. W. Zhao, Alexey Zhemchugov, H. M. Hu, D. W. Bennett, Zujian Wang, Y. C. Zhu, M. Kuemmel, Matthew Glenn Kurth, F. H. Liu, Nicolas Berger, J. W. Zhang, T. Held, X. Q. Hao, S. Nakhoul, Mario Greco, P. Larin, M. M. Ma, Dan Wang, J. F. Sun, Zahra Haddadi, S. Marcello, Y. Zeng, Zhe Sun, S. Lusso, J. Chai, M. Albrecht, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, G. X. Sun, J. V. Bennett, Li Yan, J. J. Song, L. Sun, W. D. Li, B. T. Tsednee, Z. Jiao, D. H. Zhang, Magnus Wolke, Y. F. Liang, D. P. Jin, Dayong Wang, N. Qin, H. B. Li, I. Uman, X D Shi, C. L. Luo, Y. J. Mao, Z. J. Xiao, H. X. Yang, X. Xia, I. Garzia, Q. Zhou, P. L. Chen, Xiaozhong Huang, C. C. Zhang, B. Zhong, L. B. Guo, B. Garillon, Huihui Liu, Andrzej Kupsc, M. L. Chen, Lei Li, J. G. Messchendorp, A. N. Zhu, Tao Zhang, A. Q. Guo, Z. Y. Peng, C. W. Wang, Xu Shan, W. M. Song, J. C. Li, J. Zhuang, M. X. Luo, D. V. Dedovich, Z. H. Qin, Xu Zhou, W. G. Li, A. G. Denig, Y. K. Sun, Xiaoyu Zhou, S. Spataro, K. Goetzen, H. M. Liu, J. F. Hu, G. F. Cao, A. Calcaterra, Z. G. Zhao, S. Fegan, Tao Luo, L. Z. Liao, Yu Bai, H. H. Zhang, Z. J. Sun, B. X. Yu, S. Maldaner, Shulei Zhang, L. D. Liu, F. Y. Li, J. J. Xu, Z. Q. Yang, H. S. Chen, Alperen Yuncu, J. S. Huang, H. L. Dai, C. X. Liu, Ke Wang, G. F. Xu, S. Jin, F. Nerling, R. Poling, P. F. Duan, F. H. Heinsius, Yang Zhang, M. Maggiora, X. Y. Song, Fenfen An, B. L. Wang, T. C. Zhao, Meng Wang, L. Koch, A. Khoukaz, Muhammad Irshad, R. Baldini Ferroli, Krisztian Peters, M. Z. Wang, F. A. Harris, W. L. Chang, X. N. Li, Haiping Peng, and H. Leithoff
Subjects: Physics, Particle physics, Meson, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Vector meson, 010306 general physics, 01 natural sciences
Abstract: Using a data sample of (1310.6±7.0)×106 J/ψ events collected with the BESIII detector operating at the BEPCII collider, we perform the first experimental search for invisible decays of a light vector meson (V=ω, ϕ) via J/ψ→Vη decays. The decay of η→π+π−π0 is utilized to tag the V meson decaying into the invisible final state. No evidence for a significant invisible signal is observed, and the upper limits on the ratio of branching fractions at the 90% confidence level are determined to be B(ω→invisible)B(ω→π+π−π0)
Published: 2018

22. Measurement of e+e−→KK¯J/ψ cross sections at center-of-mass energies from 4.189 to 4.600 GeV

Author: W. M. Song, Z. H. Qin, Jia-Jia Qin, Xiaozhong Huang, L. J. Wu, X. L. Gao, Xichao Ruan, Andrzej Kupsc, C. Dong, S. Sosio, Yunlong Zhang, D. Bettoni, J. L. Zhang, Jianping Zheng, S. Zhu, M. L. Chen, S. X. Du, K. Y. Liu, Y. J. Mao, H. X. Yang, M. Destefanis, I. Garzia, Joachim Pettersson, M. H. Gu, P. L. Wang, Huihui Liu, I. Uman, J. P. Liu, H. Y. Sheng, J. G. Messchendorp, Y. J. Mo, Z. J. Xiao, Qiunan Xu, P. L. Chen, C. Hu, C. X. Yu, X. Tang, W. G. Li, A. G. Denig, C. Leng, Y. K. Sun, S. Spataro, J. C. Li, Q. Liu, Tristan Weber, K. J. Zhu, Yaquan Fang, Shou-hua Zhu, H. M. Liu, M. Richter, Y. H. Xie, X. L. Luo, B. Zheng, R. G. Ping, Magnus Wolke, G. F. Cao, Y. F. Liang, Z. Ning, J. Pellegrino, J. Zhuang, L. L. Ma, L. Gong, S. Qian, Q. An, Jialun Ping, K. Zhang, D. P. Jin, X. Y. Zhang, X. H. Liu, Bibo Ke, M. X. Luo, Tao Luo, M. Maggiora, Ling Zhao, Z. A. Liu, Dayong Wang, N. Qin, K. Schoenning, Q. Y. Li, B. S. Zou, D. V. Dedovich, J. M. Bian, S. J. Zhao, B. J. Liu, L. G. Xia, A. Amoroso, Q. A. Malik, G. Mezzadri, X. N. Ma, Y. X. Xia, W. P. Wang, F. Bianchi, J. Q. Zhang, A. Dbeyssi, J. P. Dai, W. C. Yan, V. Prasad, X. Q. He, Y. Ban, P. Weidenkaff, W. B. Yan, R. Kliemt, S. P. Wen, J. B. Liu, X. K. Zhou, M. Kornicer, M. N. Achasov, L. P. Zhou, Lei Zhao, Z. L. Hou, Xiao-Rui Lyu, X. S. Qin, X. R. Zhou, Cheng Li, Y. M. Ma, Q. J. Xu, Z. P. Mao, A. Zallo, J. Fang, Tao Li, A. Julin, F. De Mori, B. X. Yu, X. K. Chu, Jie Yu, H. J. Lu, J. G. Lu, Y. J. Sun, Yifan Yang, E. Boger, S. Pacetti, Zhi Zeng, Z. H. Wang, Ch. Rosner, J. C. Chen, Peilian Liu, Xuanhong Lou, X. Y. Zhou, Q. P. Ji, S. Leiber, Nasser Kalantar-Nayestanaki, Lingxuan Zhang, I. R. Boyko, H. Liang, F. E. Maas, A. Calcaterra, Z. G. Zhao, S. Fegan, D. Y. Liu, G. S. Varner, J. Q. Li, T. Hu, C. Z. Yuan, Y. P. Lu, Y. G. Gao, T. J. Min, X. F. Wang, Q. M. Ma, M. Fritsch, Meng Wang, G. Cibinetto, Zhiqing Liu, C. Morales Morales, M. Kuhlmann, Yue Pan, F. Y. Li, Z. G. Wang, Liqing Xu, A. Mustafa, H. H. Zhang, X. Y. Niu, Y. Yuan, Y. S. Zhu, T. Johansson, J. F. Chang, M. Kavatsyuk, Z. J. Sun, Zongyuan Wang, G. Y. Tang, H. Y. Zhang, M. Albrecht, O. Bakina, P. Musiol, Ke Li, J. B. Jiao, Yu Zhang, H. S. Chen, Alperen Yuncu, Jin Li, Ke Liu, S. B. Liu, C. Schnier, Y. Q. Wang, H. L. Dai, Y. F. Wang, G. F. Chen, W. D. Li, O. B. Kolcu, P. X. Shen, Manuel Lara, B. T. Tsednee, Yao Zhang, G. Li, Jie Zhao, Z. Wu, H. B. Li, Fang Liu, D. X. Lin, Q. Ouyang, Y. H. Zheng, C. L. Luo, X. Xia, Alexey Zhemchugov, H. M. Hu, X. L. Ji, Cong-Feng Qiao, X. Cai, F. A. Harris, L. Lavezzi, R. Farinelli, U. Wiedner, I. Denysenko, J. Y. Zhang, L. Koch, C. D. Fu, Zhiqing Zhang, B. X. Zhang, Y. Nefedov, C. C. Zhang, B. Zhong, L. B. Guo, S. S. Fang, Z. Y. Zhang, G. A. Chelkov, C. Q. Feng, F. H. Liu, X. R. Chen, Nicolas Berger, Z. Y. Deng, M. Ripka, Lei Li, N. Yu. Muchnoi, X. S. Kang, X. T. Huang, H. Leithoff, G. Rong, R. Baldini Ferroli, Y. K. Heng, Y. Ding, Y. H. Zhang, Y. G. Xie, X. H. Mo, L. S. Wang, I. Tapan, Y. B. Liu, Y. H. Yan, J. W. Zhang, B. Y. Zhang, Xingguo Li, F. Li, J. W. Zhao, T. Ma, F. C. Ma, S. L. Olsen, Krisztian Peters, X. A. Xiong, A. A. Zafar, L. Zotti, J. Z. Bai, M. H. Ye, Z. L. Dou, M. Z. Wang, Y. C. Zhu, Huanhuan Liu, G. Felici, Z. Y. Wang, X. Q. Hao, M. G. Zhao, Y. H. Yang, R. P. Guo, Yao Wang, H. Xiao, X. N. Li, J. Zhu, W. Kühn, M. Y. Dong, H. L. Ma, M. Tiemens, Haiping Peng, X. P. Xu, X. B. Ji, D. M. Li, T. Held, Mario Greco, K. H. Rashid, Z. Y. You, Z. A. Zhu, Ke Wang, P. Patteri, J. F. Qiu, M. Papenbrock, J. H. Zou, P. Larin, L. Fava, H. J. Li, T. Khan, Q. L. Xiu, S. S. Sun, F. Nerling, Y. T. Liang, H. Muramatsu, S. J. Chen, R. Poling, P. F. Duan, F. H. Heinsius, Gianfranco Morello, Fenfen An, X. Fang, L. L. Wang, H. Cai, C. P. Shen, B. L. Wang, R. E. Mitchell, H. R. Qi, T. C. Zhao, Yang Zhang, F. Feldbauer, Z. L. Huang, Feng Liu, Y. P. Guo, M. Pelizaeus, M. Ablikim, X. Y. Jiang, Serkant Ali Cetin, I. B. Nikolaev, T. Holtmann, L. H. Wu, J. H. Yin, J. Y. Liu, M. Savrie, M. Shao, Y. T. Gu, Y. J. Xiao, Q. Gao, Y. N. Gao, Y. X. Zhou, E. Fioravanti, S. Ahmed, Y. X. Yang, Kang Li, X. L. Kang, M. R. Shepherd, S. Q. Zhang, Q. Zhao, A. Sarantsev, D. H. Wei, P. R. Li, J. S. Lange, M. Bertani, L. Yang, Y. Z. Sun, W. Gradl, Gang Zhao, D. Y. Wang, M. Qi, H. J. Yang, L. Y. Dong, X. Y. Shen, W. J. Zheng, J. Min, H. B. Liu, B. Kopf, K. L. He, S. W. Han, Jimin Zhao, P. L. Li, C. F. Redmer, J. F. Sun, S. Marcello, Y. Zeng, Zhe Sun, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, J. J. Song, L. D. Liu, J. J. Xu, J. S. Huang, C. X. Liu, M. Kuemmel, K. Goetzen, G. F. Xu, S. Jin, X. Y. Song, Dan Wang, S. Gu, P. Kiese, R. A. Briere, G. R. Liao, G. S. Huang, X. S. Jiang, B. Q. Wang, O. Cakir, T. Hussain, X. Y. Ma, W. X. Gong, C. H. Li, X. H. Sun, M. M. Ma, Z. Gao, S. L. Niu, Zahra Haddadi, X. Q. Li, Y. F. Long, J. Chai, G. X. Sun, J. V. Bennett, Li Yan, Z. B. Li, W. Ikegami Andersson, Z. Jiao, D. H. Zhang, C. Sowa, Y. B. Zhao, W. Shan, J. Dong, S. Nisar, C. J. Tang, Y. Hu, D. Xiao, Jun-Yi Zhang, Z. P. Zhang, D. W. Bennett, Zujian Wang, and A. Q. Guo
Subjects: Physics, 010308 nuclear & particles physics, Electron–positron annihilation, 0103 physical sciences, Analytical chemistry, High Energy Physics::Experiment, Center of mass, 010306 general physics, 01 natural sciences
Abstract: We investigate the process e(+)e(-) -> K (K) over barJ/psi at center-of-mass energies from 4.189 to 4.600 GeV using 4.7 fb(-1) of data collected by the BESIII detector at the BEPCII collider. The Born cross sections for the reactions e(+)e(-) -> K(+)K(-)J/psi and K(S)(0)K(S)(0)J/psi are measured as a function of center-of-mass energy. The energy dependence of the cross section for e(+)e(-) -> K(+)K(-)J/psi is shown to differ from that for pi(+)pi(-)J/psi in the region around the Y(4260). In addition, there is evidence for a structure around 4.5 GeV in the e(+)e(-) -> K(+)K(-)J/psi cross section that is not present in pi(+)pi(-)J/psi.
Published: 2018

23. Measurement of e+ e- → DD cross sections at the ψ(3770) resonance

Author: T. Hussain, X. Y. Ma, W. X. Gong, M. Maggiora, G. Y. Tang, X. H. Sun, J. Q. Zhang, S. L. Niu, F. De Mori, F. Y. Li, X. Q. Li, Y. F. Long, M. Greco, K. Y. Liu, L. M. Gu, Z. B. Li, W. Ikegami Andersson, Jie Zhao, P. Kiese, C. Sowa, J. M. Bian, S. J. Zhao, Meng Wang, S. L. Olsen, R. A. Briere, Y. B. Zhao, S. Leiber, D. X. Lin, X. Y. Zhou, H. M. Hu, X. S. Jiang, P. L. Wang, V. Prasad, L. J. Wu, B. X. Yu, Zhi Zeng, S. Han, O. Cakir, T. Khan, Yi-Tao Wang, Xiao-Rui Lyu, M. Bertani, Z. Haddadi, J. W. Zhang, J. Dong, Muhammad Irshad, Kai Liu, X. Xia, J. H. Yin, L. Yang, Guangshun Huang, L. Yan, M. Kuessner, M. Alekseev, Y. Q. Wang, M. Shao, Y. T. Gu, Q. J. Xu, G. R. Liao, J. C. Chen, Xuanhong Lou, H. S. Chen, X. Y. Niu, Dean Liu, X. F. Wang, J. Libby, R. Farinelli, Y. G. Gao, X D Shi, Y. J. Mao, S. Nisar, C. J. Tang, Y. J. Mo, Nasser Kalantar-Nayestanaki, L. Zhang, Y. Nefedov, J. Zhu, F. Feldbauer, K. Goetzen, Yaquan Fang, B. Q. Wang, G. S. Varner, Z. L. Huang, Y. Hu, Y. P. Lu, Y. H. Zheng, C. Morales Morales, X. K. Zhou, Fang Liu, T. Y. Qi, I. Denysenko, W. C. Yan, H. L. Ma, A. Calcaterra, Z. G. Zhao, S. Fegan, L. Z. Liao, L. H. Wu, M. Savrie, Q. M. Ma, A. Mustafa, S. F. Zhang, D. M. Li, H. L. Dai, Igor Boyko, Cong-Feng Qiao, H. X. Yang, I. Garzia, F. A. Harris, W. L. Chang, A. Pitka, E. Fioravanti, M. Albrecht, Feng Liu, Z. G. Wang, H. Y. Zhang, Y. X. Xia, S. H. Zhu, Haiwen Liu, X. L. Ji, H. H. Zhang, Yi Jin, H. Leithoff, X. L. Luo, M. Ablikim, Y. T. Tan, N. Yu. Muchnoi, K. Begzsuren, J. F. Sun, X. S. Kang, W. Gradl, Y. F. Wang, D. Xiao, M. Ripka, F. Li, Z. J. Sun, Y. Yuan, Y. S. Zhu, Yu Zhang, Zhiqing Liu, J. W. Li, L. Xia, G. F. Chen, M. Pelizaeus, Ke Wang, W. D. Li, Cui Li, Y. H. Zhang, Magnus Wolke, Y. F. Liang, B. Y. Zhang, X. Y. Jiang, D. Y. Wang, S. Marcello, S. L. Yang, J. Y. Zhang, F. Bianchi, F. C. Ma, M. Qi, Y. J. Xiao, T. Holtmann, Y. Zeng, D. P. Jin, Q. Liu, A. Sarantsev, D. H. Wei, P. R. Li, H. J. Yang, B. T. Tsednee, J. S. Lange, K. Schoenning, Q. Y. Li, B. S. Zou, T. Johansson, J. F. Chang, S. Lusso, Z. Y. Wang, I. Uman, Niklaus Berger, Q. P. Ji, Y. H. Xie, H. B. Li, J. Y. Liu, X. D. Ruan, X. B. Ji, M. Tiemens, B. Garillon, Q. A. Malik, Dayong Wang, G. Mezzadri, N. Qin, Huihui Liu, Y. K. Heng, A. G. Denig, C. L. Luo, X. Q. He, J. Pellegrino, O. B. Kolcu, Q. Zhou, L. L. Ma, L. Gong, Z. X. Meng, P. F. Duan, Gianfranco Morello, X. Cai, Y. Pan, P. Patteri, Liqing Xu, J. Chai, X. Y. Shen, Ling Zhao, W. M. Song, L. Lavezzi, C. C. Zhang, Q. Gao, Y. N. Gao, M. N. Achasov, Fenfen An, G. A. Chelkov, X. A. Xiong, L. P. Zhou, Michael Papenbrock, F. Yan, A. A. Zafar, B. L. Wang, Y. B. Chen, Xiaofeng Zhu, J. Z. Zhang, G. X. Sun, J. V. Bennett, P. Larin, Z. Jiao, Fu-Hu Liu, Y. Ding, J. G. Messchendorp, Y. Zhang, B. Zhong, L. B. Guo, R. Kliemt, M. Rolo, J. P. Dai, Lei Zhao, Q. An, X. Q. Hao, Y. M. Ma, G. F. Xu, J. F. Qiu, A. Amoroso, J. J. Song, I. Tapan, T. C. Zhao, M. Richter, D. H. Zhang, Z. P. Mao, A. Mangoni, B. J. Liu, S. B. Liu, X. H. Mo, L. S. Wang, Z. L. Hou, A. Guskov, M. G. Zhao, Y. H. Yang, R. P. Guo, Huanhuan Liu, Z. Ning, A. Zhemchugov, H. Muramatsu, A. N. Zhu, L. Fava, Y. H. Yan, L. Sun, G. Felici, Z. J. Xiao, A. Dbeyssi, M. H. Ye, Jun-Yi Zhang, S. Nakhoul, Jie Yu, Y. P. Guo, Ulrich Wiedner, Qiunan Xu, Tao Zhang, Bibo Ke, Minglin Ma, J. W. Zhao, W. B. Yan, J. Min, L. Koch, A. Khoukaz, K. H. Rashid, Z. P. Zhang, M. Kornicer, W. Kühn, J. Fang, Tao Li, S. Ahmed, Y. X. Yang, Kang Li, Z. Gao, Y. C. Zhu, B. Kopf, L. L. Wang, H. Cai, X. Y. Song, T. J. Min, K. J. Zhu, P. L. Chen, Z. Y. You, A. Yuncu, Z. A. Zhu, Yang Zhang, K. L. He, D. W. Bennett, A. Q. Guo, Z. Y. Peng, C. W. Wang, G. Rong, G. Cibinetto, C. Z. Yuan, S. Pacetti, Xiaozhong Huang, Xu Shan, R. Baldini Ferroli, Klaus Peters, Y. T. Liang, Ch. Rosner, D. Toth, Zujian Wang, T. Weber, M. Z. Wang, Jimin Zhao, Y. Bai, J. C. Li, A. Julin, J. J. Xu, H. J. Li, P. L. Li, S. J. Chen, Y. G. Xie, Bingxuan Liu, M. Kuemmel, Matthew Glenn Kurth, S. Jin, J. Zhuang, H. Liang, Q. Zhao, Y. Z. Sun, I. B. Nikolaev, X. N. Ma, Andrzej Kupsc, Q. L. Xiu, X. N. Li, K. J. Li, J. S. Huang, Yao Zhang, C. P. Shen, A. Zallo, M. X. Luo, G. Li, L. D. Liu, A. Gilman, Xiang Zhou, Ke Li, W. Shan, S. X. Du, T. Held, D. V. Dedovich, M. L. Chen, C. X. Liu, L. Y. Dong, Zongyuan Wang, M. Y. Dong, C. D. Fu, C. X. Lin, M. Fritsch, Gang Zhao, Haiping Peng, C. Q. Feng, X. R. Chen, M. Kavatsyuk, Z. Y. Deng, Z. L. Dou, W. P. Wang, H. B. Liu, Ke Liu, W. J. Zheng, F. Nerling, Xingguo Li, J. H. Zou, Q. Ouyang, Z. H. Qin, B. X. Zhang, S. S. Sun, S. S. Fang, W. G. Li, X. S. Qin, C. F. Redmer, C. Schnier, Y. B. Liu, Y. K. Sun, Dan Wang, X. T. Huang, R. E. Mitchell, S. Spataro, X. P. Xu, Lei Li, G. F. Cao, Z. T. Sun, Z. A. Liu, Y. Ban, P. Weidenkaff, F. H. Heinsius, S. P. Wen, X. R. Zhou, Cheng Li, X. K. Chu, J. F. Hu, Zhiyong Zhang, J. L. Zhang, M. H. Gu, H. Y. Sheng, C. X. Yu, B. Zheng, R. G. Ping, H. J. Lu, J. G. Lu, F. E. Maas, T. Hu, O. Bakina, P. X. Shen, Z. Wu, Zhiqing Zhang, X. Liu, H. R. Qi, Serkant Ali Cetin, S. Qian, Jialun Ping, K. Zhang, X. Y. Zhang, M. Lara, J. B. Liu, Y. J. Sun, Yifan Yang, E. Boger, D. Y. Liu, J. B. Jiao, X. L. Gao, C. Dong, S. Sosio, Joachim Pettersson, Yunlong Zhang, H. L. Liu, D. Bettoni, R. Poling, Jianping Zheng, S. Zhu, M. Destefanis, X. Tang, F. Cossio, Research unit Nuclear & Hadron Physics, and İstanbul Arel Üniversitesi
Subjects: Particle physics, Nuclear and High Energy Physics, Meson, charm mesons, Electron–positron annihilation, 01 natural sciences, Resonance (particle physics), BESIII/BEPCII, law.invention, High Energy Physics - Experiment, NO, law, 0103 physical sciences, ddc:530, 010306 general physics, Collider, Instrumentation, DECAY LIBRARY TAUOLA, Physics, Luminosity (scattering theory), Annihilation, 010308 nuclear & particles physics, Sigma, cross sections, Astronomy and Astrophysics, High Energy Physics::Experiment, Bar (unit)
Abstract: Chinese physics / C High energy physics and nuclear physics C 42(8), 083001 (2018). doi:10.1088/1674-1137/42/8/083001, We report new measurements of the cross sections for the production of D Dbar final states at the psi(3770) resonance. Our data sample consists of an integrated luminosity of 2.93/fb of e+e- annihilation data produced by the BEPCII collider and collected and analyzed with the BESIII detector. We exclusively reconstruct three D0 and six D+ hadronic decay modes and use the ratio of the yield of fully reconstructed D Dbar events ('double tags') to the yield of all reconstructed D or Dbar mesons ('single tags') to determine the number of D0 D0bar and D+D- events, benefiting from the cancellation of many systematic uncertainties. Combining these yields with an independent determination of the integrated luminosity of the data sample, we find the cross sections to be \sigma(e+e- --> D0 D0bar)=(3.615 +- 0.010 +- 0.038) nb and \sigma(e+e- --> D+D-)=(2.830 +- 0.011 +- 0.026) nb, where the uncertainties are statistical and systematic, respectively., Published by IOP Publ., Bristol [u.a.]
Published: 2018

24. Feasibility study for the measurement of πN transition distribution amplitudes at P¯ANDA in p¯p→J/ψπ0

Author: Tristan Weber, Michaela Thiel, T. Wasem, J. Schwiening, M. Kube, R. Schmitz, D. Lehmann, A. Trzcinski, A. Amoroso, A.A. Efremov, Alexander Olshevskiy, R. Klasen, Herbert Koch, M. Maggiora, A. Dbeyssi, Dipanwita Dutta, F. E. Maas, A. Chlopik, E. Etzelmüller, P. Wintz, V. Lucherini, P. Schakel, P. De Remigis, Krzysztof Swientek, G.S. Shabratova, H. Deppe, Angelo Rivetti, Riccardo Introzzi, K. Dutta, P. Wieczorek, V. M. Datar, W. Lauth, E. A. Strokovsky, L. Busso, M. Hoek, F. Balestra, G. Maniscalco, D. Khaneft, R. Schnell, S. Vejdani, N. G. Minaev, V. Chernetsky, B. Seitz, U. Thoma, K. K. Seth, Mario Bragadireanu, Amiran Tomaradze, B. Fröhlich, S. Pflüger, Valentino Rigato, Franco Bradamante, I. A. Kuyanov, E. Gutz, V. M. Abazov, D. P. Watts, Lennart Isaksson, M. Albrecht, V. Arefiev, T. Schröder, B. Singh, G. Sonika, A. Fechtchenko, C. Rosenbaum, L. Schmitt, Bernd Voss, B. Hetz, S. Sanchez, Magnus Wolke, S.A. Zaporozhets, A. Filippi, S. Coli, Bhavin Patel, A. Khoukaz, Markus Ball, A. Pitka, Krisztian Peters, B. Ramstein, K. Khosonthongkee, M. Pfaffinger, Torbjörn Bäck, D. Veretennikov, J. Pütz, R.A. Salmin, P. Balanutsa, B. J. Liu, A. Hayrapetyan, Chinorat Kobdaj, R. W. Novotny, P. Genova, W. Kühn, P. F. Dalpiaz, S. Belostotski, Ulrich Wiedner, A.S. Vodopianov, Yu.N. Rogov, Wojciech Krzemien, M. Wojciechowski, T. Erlen, Giuseppe Giraudo, B. Zwieglinski, H. Smit, E. Prencipe, J. Jaworowski, R.A. Kunne, S. Lusso, A.G. Fedunov, P. Musiol, C. Schnier, Yan Liang, H. Ohm, Paolo Montagna, A. Karavdina, G. Mazza, N. K. Walford, G. Boca, Boris Batyunya, M. Zyzak, V. Varentsov, M. Kuhlmann, M. Zühlsdorf, V. V. Tokmenin, G. Sterzenbach, M. Tiemens, Stanisław Kistryn, A. Kumar, Alessandro Bressan, F. Lisowski, Paul Alois Buhler, V. Carassiti, D. Prasuhn, M. Zambrana, R. Dzhygadlo, J. Lühning, M.K. Suleimanov, O. Noll, P. Salabura, M. Patsyuk, Christian Schmidt, Johann Zmeskal, M. Barnyakov, A. A. Piskun, F. Feldbauer, Susanna Costanza, Zbigniew Rudy, V. E. Blinov, F. De Mori, Alexander D. Vasiliev, V. Metag, C. Sfienti, Utpal Roy, E. Perevalova, M. Cardinali, R. Birsa, R. Teshev, Aleksandra Wrońska, Egle Tomasi-Gustafsson, F. Uhlig, K. Pysz, T. Sefzick, M. Steinen, V.B. Chandratre, M. Krebs, Matthias Richter, J. P. Wessels, W. Schäfer, M. Fritsch, M. Korjik, J. Rieke, Andreas Lehrach, M. Kavatsyuk, A. Kulkarni, R. F. Parodi, R. Karabowicz, A. Sanchez-Lorente, T.A. Pocheptsov, Valery Dormenev, A. Magiera, H. Flemming, Vassili Kachanov, K. Kalita, W. Erni, P. Poznański, T. Holtmann, O. Miklukho, J. Pychy, S. Bleser, Yu. Yu. Lobanov, Zhiqing Liu, T. Quagli, D. Branford, O. Corell, Konstantin Beloborodov, Dirk Grunwald, Jize Zhao, R. Böhm, L. Capozza, L. Ferrero, A. K. Hergemöller, T. Held, Mario Greco, A. Wilms, Alessandro Drago, I. Augustin, Mathias Fink, A. E. Yakutin, N. Belikov, D. I. Glazier, Sergey Nazarenko, D. Kang, A. Boukharov, M. Kesselkaul, V. Abramov, A. N. Skachkova, S. Bukreeva, U. Thöring, Hans-Georg Zaunick, A. Ryazantsev, S. Marcello, C. Guaraldo, V. Pothodi Chackara, K. Makonyi, A.I. Zinchenko, S. Ryzhikov, S. Orfanitski, Edward Lisowski, K. A. Martin, Ajit Kumar Mohanty, L. Lavezzi, Kirill M. Semenov-Tian-Shansky, S.A. Kononov, L. Gruber, Grzegorz Filo, M. Domagala, L. Cao, V. Di Pietro, S. Grieser, B. Ketzer, S. Schlimme, Marten Ole Schmidt, Alberto Rotondi, M. Michel, C. Schwarz, S. I. Manaenkov, E. A. Kravchenko, R. Beck, A. Gillitzer, Krzysztof Korcyl, B. Slowinski, G. Kesik, Felice Iazzi, U. Müller, D. Calvo, B. Krusche, C. Wang, M. Steinke, A. Gerhardt, V. L. Malyshev, I. Marishev, E. Widmann, Gianangelo Bracco, Harald Kleines, N. I. Zhuravlev, A. Lehmann, D. Nicmorus Marinescu, Patrick Achenbach, A. Apostolou, D. Walther, Johann Marton, C. Sowa, T. Saito, R. Dosdall, Ayut Limphirat, A. Belias, Dan Pantea, A. Täschner, A. Mustafa, D. Marchand, P. Kulessa, M. Galuska, C. Ugur, W. Ikegami Andersson, M. Savrie, C. Hammann, J. C. van der Weele, D. Wölbing, G.B. Pontecorvo, Vivekanand Jha, Hasko Stenzel, D. Przyborowski, P. Drexler, Antoni Szczurek, Tord Johansson, A. Gerasimov, T. Triffterer, A. Britting, S. Ahmed, Mihai Caprini, W. Eyrich, A. Kozela, V. Grishin, O. Malyshev, U. Kurilla, Yupeng Yan, H. Sohlbach, S. Leiber, P. Strzempek, X. Y. Shen, V. V. Mochalov, M. I. Martínez, U. Lynen, I. Lehmann, M. Bai, A. A. Zhdanov, M. Preston, M. Urban, M. Mikirtychyants, I. K. Keshk, Andrea Lavagno, Grzegorz Korcyl, H. Ahmadi, J. Biernat, A. Lai, M. Traxler, Richard Wheadon, M. Pelizäus, A. Cotta Ramusino, D. Rodríguez Piñeiro, Markus Büscher, R. Kliemt, M. M. Macri, V. Kormilitsin, A. Yu. Barnyakov, Z. Li, Ivan Kisel, Arpit Parmar, Tomasz Fiutowski, C. Schmidt, C. Morales Morales, J. Płażek, Michael Düren, Z. J. Sun, H. Loehner, M. Pugach, P. Fedorets, K. Suzuki, A. P. Onuchin, E. Fioravanti, Andrea Bianconi, B. Ma, Yu.M. Mel'nik, M. Deiseroth, F. H. Heinsius, D. G. Ireland, J. S. Lange, Anne-Laure Martin, B. Wohlfahrt, H. Xu, J. Van de Wiele, P. N. Deepak, D. A. Morozov, N. Hüsken, Livio Bianchi, Günter Kemmerling, S. Löchner, B. Galnander, Jifeng Hu, N. B. Skachkov, G. D. Alexeev, T. Ullrich, I. Zimmermann, B. J. Roy, E.K. Koshurnikov, D. Steinschaden, M. Michałek, Bruce Yabsley, M. N. Wagner, S. Wronka, Smbat Grigoryan, Paola Gianotti, Andrey V. Izotov, T. Kuske, S. C. Li, A. G. Zorin, A. Davidenko, M. Lindemulder, V. Astakhov, Andreas Herten, V.I. Lobanov, V.Kh. Dodokhov, Oleg V. Missevitch, Y. Wang, C. Hahn, A. Pyszniak, M.G. Sapozhnikov, L. V. Malinina, Andrey Uzunian, Andrei Fedorov, H. Orth, A. Ehret, Alastair J. Wilson, L. V. Nogach, R. Nellen, Hans Calén, I. Garzia, A.F. Makarov, Harphool Kumawat, S. I. Serednyakov, A. Galoyan, Paweł Moskal, Karin Schönning, W. Czyzycki, J. G. Messchendorp, A. Riccardi, M. Kümmel, A. Sokolov, Maria Krawczyk, Ting Xiao, S. Godre, A. G. Denig, Marek Idzik, M. O. Distler, Frank Goldenbaum, P. Srisawad, G. Kozlov, K. Biguenko, P.J.J. Lemmens, S. Spataro, M. Yu. Barabanov, S. Maldaner, A. Zambanini, Ajay Kumar Rai, I. Shein, M. Böhm, M. Rossbach, A. Demekhin, Yury Tikhonov, A. A. Derevschikov, C. Fritzsch, M. Babai, J. S. Díaz, V. K. Rodionov, A. E. Blinov, A. Cebulla, S. Reiter, A. Samartsev, Bartosz Mindur, V. N. Goryachev, H. B. Liu, B. Kopf, E. Atomssa, C. Wendel, Sean A Dobbs, J. Pochodzalla, Yu.I. Davydov, Genady Gavrilov, Andrew Levin, M.P. Bussa, G. Rosner, S. Jasper, Ankhi Roy, J. Olave, A. Bersani, Bo Cederwall, K. Götzen, B. Kamys, P. Wüstner, Piotr Lebiedowicz, D. Bettoni, A. Dolgolenko, P.-E. Tegnér, Mariana Nanova, D. Melnychuk, V. Akishina, P. A. Semenov, V. Balanutsa, P. Mahlberg, H. Leithoff, Victor Bobrovnikov, M. Papenbrock, L. Fava, R. Valente, R. Veenstra, C. Motzko, K.-T. Brinkmann, F. Nerling, V. Uzhinsky, Harald Merkel, M. Destefanis, D. Lin, Y.M. Goncharenko, M. C. Mora Espí, N. Divani Veis, Pawel Marciniewski, Mohammed Al-Turany, Q. Hu, Andrzej Kupsc, M. Steinacher, Tobias Stockmanns, J. Ritman, S. Diehl, V. Serdyuk, Jerzy Smyrski, A. Gromliuk, M. Mignone, M. Moritz, S. Sosio, S. Schadmand, G. Schepers, S. Poslavskiy, and Joachim Pettersson
Subjects: Quantum chromodynamics, Physics, Particle physics, Luminosity (scattering theory), Annihilation, Meson, 010308 nuclear & particles physics, 7. Clean energy, 01 natural sciences, Particle identification, Nuclear physics, Factorization, Antiproton, 0103 physical sciences, High Energy Physics::Experiment, 010306 general physics, Bar (unit)
Abstract: The exclusive charmonium production process in (P) over barp annihilation with an associated pi 0 meson (p) over barp -> J/psi pi(0) is studied in the framework of QCD collinear factorization. The feasibility of measuring this reaction through the J/psi -> e(+) e(-) decay channel with the AntiProton ANnihilation at DArmstadt ((P) over bar ANDA) experiment is investigated. Simulations on signal reconstruction efficiency as well as the background rejection from various sources including the (P) over barp -> pi(+)pi(-)pi(0) and (p) over barp -> J/psi pi(0)pi(0) reactions are performed with PANDAROOT, the simulation and analysis software framework of the (P) over bar ANDA experiment. It is shown that the measurement can be done at (P) over bar ANDA with significant constraining power under the assumption of an integrated luminosity attainable in four to five months of data taking at the maximum design luminosity.
Published: 2017

25. Evidence for the decays of and *

Author: Bibo Ke, W. B. Yan, G. A. Chelkov, Guangshun Huang, L. Yan, G. R. Liao, M. Qi, V. Prasad, M. Kuessner, S. Han, H. J. Yang, S. Pacetti, S. L. Niu, H. J. Lu, F. De Mori, J. Min, L. H. Wu, Kai Liu, J. F. Chang, A. Yuncu, M. Savrie, X. Liu, H. R. Qi, Yuxin Zhang, Ke Li, Huanhuan Liu, S. Qian, A. Q. Guo, C. W. Wang, G. Rong, G. Felici, Meng Wang, Yi Jin, N. Hü sken, J. W. Li, L. Xia, Z. H. Qin, M. Y. Dong, S. B. Liu, L. Zhang, Y. Nefedov, S. X. Du, Z. L. Dou, X. Y. Zhou, M. Richter, H. J. Li, F. E. Maas, T. Hu, Jun-Yi Zhang, Y. P. Guo, Y. J. Xiao, Xiaolu Ji, Serkant Ali Cetin, H. B. Liu, Z. P. Zhang, W. P. Wang, Y. Zhang, M. Kuemmel, Matthew Glenn Kurth, W. Shan, P. L. Wang, Zongyuan Wang, J. H. Zou, Yunlong Zhang, S. Nisar, A. Calcaterra, Z. G. Zhao, S. Fegan, K. Begzsuren, F. Bianchi, O. Bakina, L. Z. Liao, J. Q. Zhang, D. Y. Liu, H. L. Liu, F. Y. Li, S. S. Sun, J. Libby, Q. Ouyang, P. L. Chen, D. W. Bennett, M. Albrecht, S. S. Fang, Y. Bai, D. Bettoni, X. Q. Li, Y. F. Long, X. F. Wang, X. S. Qin, Shuangli Yang, X. N. Ma, Y. B. Liu, Y. T. Liang, H. H. Zhang, P. X. Shen, M. Greco, Xiao Cai, Xiao-Rui Lyu, Yaquan Fang, A. Pitka, Y. H. Xie, J. Pellegrino, Z. H. Wang, W. G. Li, W. D. Li, B. T. Tsednee, Tao Luo, Cui Li, Q. M. Ma, Y. K. Sun, R. Farinelli, Xiaoyu Zhou, A. Mustafa, R. E. Mitchell, L. J. Wu, Q. An, Jialun Ping, X. K. Zhou, Fang Liu, S. Maldaner, Q. L. Xiu, K. Zhang, X. Y. Zhang, Zhiqing Zhang, B. Wang, J. H. Yin, M. Maggiora, Ling Zhao, W. X. Gong, W. M. Song, J. Zhuang, B. Kopf, C. F. Redmer, J. D. Lu, H. L. Ma, Y. G. Gao, Dan Wang, D. M. Li, S. Zhu, Zhiqing Liu, I. Denysenko, W. C. Yan, M. Kavatsyuk, Y. J. Mo, J. B. Liu, J. C. Li, Xiao-yan Li, H. Muramatsu, K. Y. Liu, C. Sowa, B. X. Yu, Y. Yuan, Y. S. Zhu, Yu Zhang, T. Johansson, Lei Zhao, Z. L. Hou, Y. H. Zheng, Cong-Feng Qiao, A. Zhemchugov, X. T. Huang, Q. P. Ji, S. Spataro, X. P. Xu, Lei Li, K. L. He, S. Q. Qu, Z. B. Li, W. Ikegami Andersson, K. Peters, Magnus Wolke, K. Schoenning, Q. Y. Li, N. Yu. Muchnoi, Z. Wu, Y. Fu, B. S. Zou, M. Z. Wang, Y. J. Sun, Yifan Yang, J. G. Lu, Y. F. Wang, Y. F. Liang, M. Pelizaeus, M. X. Luo, Y. P. Lu, M. G. Zhao, Y. H. Yang, I. Tapan, D. V. Dedovich, X. X. Ma, Xu Zhou, J. Dong, M. Shao, Y. T. Gu, D. P. Jin, O. B. Kolcu, T. J. Min, X. S. Kang, G. F. Cao, P. Kiese, J. F. Hu, Y. H. Yan, J. F. Sun, Niklaus Berger, H. S. Chen, R. P. Guo, J. Zhu, B. X. Zhang, X D Shi, Y. C. Zhu, P. L. Li, S. L. Olsen, R. A. Briere, L. Lavezzi, Y. J. Mao, Z. X. Meng, X. A. Xiong, J. Y. Liu, C. J. Tang, Y. Hu, Igor Boyko, J. B. Jiao, Liqing Xu, X. Y. Shen, A. A. Zafar, H. X. Yang, N. Qin, I. Garzia, Muhammad Irshad, Zhiyong Zhang, C. Z. Yuan, Z. Y. Wang, X. S. Jiang, L. Koch, A. Khoukaz, M. Destefanis, X. Q. Hao, Q. Liu, S. Marcello, Y. Zeng, Zhe Sun, S. Lusso, Y. Ding, B. J. Liu, H. Liang, Yi Chen, T. Held, S. J. Zhao, X. L. Gao, B. Garillon, R. Baldini Ferroli, Huihui Liu, L. L. Ma, L. Gong, A. Amoroso, H. B. Li, A. G. Denig, C. L. Luo, X. Xia, Q. Zhou, D. Xiao, X. Y. Jiang, M. M. Ma, C. C. Zhang, B. Zhong, L. B. Guo, K. H. Rashid, W. Kühn, Z. Y. You, Z. A. Zhu, Michael Papenbrock, F. Yan, M. Bertani, Bo Zhang, Z. Ning, Xiaofeng Zhu, J. Z. Zhang, Z. Haddadi, M. L. Chen, Q. Gao, Y. N. Gao, K. Wang, J. Z. Fan, J. L. Zhang, Jian Fang, R. Kiuchi, H. Y. Sheng, I. B. Nikolaev, C. X. Yu, J. G. Messchendorp, O. Cakir, J. P. Dai, A. Dbeyssi, A. N. Zhu, S. J. Chen, Y. Pan, T. Weber, C. P. Shen, Z. J. Xiao, L. Yang, C. Dong, J. Chai, J. J. Song, S. Sosio, L. Sun, A. Sarantsev, Q. J. Xu, M. Fritsch, B. Zheng, R. G. Ping, Qiunan Xu, Haiping Peng, T. Khan, W. L. Chang, D. H. Wei, P. R. Li, J. S. Lange, M. Kornicer, Jiajun Zheng, Ulrich Wiedner, Angelo Rivetti, J. C. Chen, Tao Zhang, Xuanhong Lou, R. X. Yang, G. X. Sun, J. V. Bennett, H. L. Dai, S. F. Zhang, F. Li, S. Leiber, S. Ahmed, Z. Jiao, Fu-Hu Liu, D. H. Zhang, Y. X. Yang, Z. A. Liu, Nasser Kalantar-Nayestanaki, T. Hussain, H. Y. Zhang, F. Feldbauer, F. A. Harris, A. Julin, R. Poling, C. Morales Morales, Xu Shan, Z. L. Huang, Feng Liu, P. F. Duan, X. Y. Ma, H. Leithoff, Y. Ban, P. Weidenkaff, F. H. Heinsius, Y. T. Tan, Fenfen An, S. P. Wen, M. Ablikim, B. L. Wang, Xiaozhong Huang, T. C. Zhao, Haiwen Liu, Joachim Pettersson, Ke Liu, W. Gradl, M. Ripka, X. R. Zhou, Cheng Li, Q. A. Malik, G. Mezzadri, Q. Zhao, Y. Z. Sun, G. F. Chen, D. Y. Wang, X. H. Sun, J. Y. Zhang, X. H. Mo, L. S. Wang, Yuguang Xie, Xiang Zhou, I. K. Keshk, Andrzej Kupsc, M. Ye, L. M. Gu, M. N. Achasov, L. P. Zhou, C. X. Lin, M. Rump, Gang Zhao, X. Tang, Y. M. Ma, Z. P. Mao, F. C. Ma, Y. K. Heng, Z. J. Sun, Tao Li, L. L. Wang, H. Cai, M. Rolo, Z. Gao, Ch. Rosner, M. H. Ye, J. Z. Zhao, F. Cossio, K. J. Zhu, M. H. Gu, L. Y. Dong, W. J. Zheng, J. F. Qiu, X. B. Ji, M. Tiemens, L. Fava, P. Patteri, Yang Zhang, R. Kliemt, A. Mangoni, A. Guskov, S. Nakhoul, Jie Yu, G. Cibinetto, Bingxuan Liu, W. S. Cheng, Yao Zhang, G. Li, A. Gilman, C. D. Fu, C. Q. Feng, Z. Y. Deng, Xingguo Li, T. Y. Qi, Y. X. Xia, S. H. Zhu, Jiawei Zhao, G. Y. Tang, Jie Zhao, D. X. Lin, H. M. Hu, Yongke Zhao, J. W. Zhang, F. Nerling, M. Alekseev, I. Uman, P. Larin, Shan Jin, K. Goetzen, Ziwei Wang, G. F. Xu, X. L. Luo, X. Y. Song, J. J. Xu, Z. Q. Yang, J. S. Huang, and C. X. Liu
Subjects: Hadronic decay, Physics, Nuclear and High Energy Physics, 010308 nuclear & particles physics, Branching fraction, Hadron, Astronomy and Astrophysics, Lambda, 01 natural sciences, Omega, Combinatorics, 0103 physical sciences, 010306 general physics, Instrumentation
Abstract: We study the hadronic decays of to the final states and , using an annihilation data sample of 567 pb-1 taken at a center-of-mass energy of 4.6 GeV with the BESIII detector at the BEPCII collider. We find evidence for the decays and with statistical significance of and , respectively. Normalizing to the reference decays and , we obtain the ratios of the branching fractions and to be and , respectively. The upper limits at the 90% confidence level are set to be and . Using BESIII measurements of the branching fractions of the reference decays, we determine % ( % ( is consistent with the previous measurement, and the branching fraction of is measured for the first time.
Published: 2019

26. Experimental access to Transition Distribution Amplitudes with the P̄ANDA experiment at FAIR

Author: M. C. Mora Espí, Pawel Marciniewski, K. Makonyi, Yupeng Yan, S. Wronka, D. Pietreanu, Shaji Kumar, N. Belikov, D. I. Glazier, A. Gillitzer, K. Khanchai, Ajay Kumar Rai, M. Steinen, D. Calvo, Yury Tikhonov, A. A. Derevschikov, T. A. Pocheptsov, R.A. Salmin, P. Balanutsa, B. J. Liu, P. N. Deepak, A. E. Blinov, S. Lange, S. Ryzhikov, G. Kalicy, Arpit Parmar, P. Musiol, G. D. Alexeev, D. P. Watts, Lennart Isaksson, Tobias Stockmanns, E. Gutz, P. F. Dalpiaz, Zhi Liu, D. Marchand, S. Grieser, A. Gerhardt, D. Kangh, L. Fava, A. A. Festchenko, Harphool Kumawat, I. Zimmermann, M. Albrecht, B. Krusche, A. Sanchez Lorente, E. A. Strokovsky, M. A. Pasyuk, J. Ritman, P. C. Vinodkumar, T. Quagli, M.G. Sapozhnikov, Ashok Kumar, Herbert Koch, V. I. Astakhov, V. Serdyuk, K. M. von Würtemberg, D. Münchow, Hans-Georg Zaunick, S. Marcello, M. Ullrich, A. Mustafa, Paola Gianotti, T. Kuske, Michaela Thiel, Kamal K. Seth, S. Schlimme, C. Schwarz, M. Savrie, B. Ketzer, Jerzy Smyrski, E. Etzelmüller, A. G. Fedunov, H. Sohlbach, K. Malgorzata, Victor Bobrovnikov, R.Sh. Teshev, L. Ayut, V.M. Abazov, B. Spruck, B. Kamys, D. Mülhheim, Krzysztof Swientek, S. Schadmand, M. V. Korzihik, Zbigniew Rudy, Matei Eugen Vasile, T. Wasem, J. Schwiening, D. Lehmann, M. Patsyuk, Karin Schönning, W. Czyzycki, M. Zühlsdorf, V. N. Goryachev, A. G. Zorin, A. Davidenko, W. Lauth, B. Fröhlich, A. Amoroso, V. Lucherini, P. Schakel, Grzegorz Korcyl, G.A. Mustafaev, Smbat Grigoryan, Ajit Kumar Mohanty, Grzegorz Filo, R. Veenstra, P. Wüstner, J. Marton, Boris Batyunya, L. Ferrero, A. N. Skachkova, Edward Lisowski, I. Garzia, D. Bremer, T. Eissner, D. Lin, Y.M. Goncharenko, Soumen Paul, A.A. Efremov, Dipanwita Dutta, Alberto Rotondi, M. Michel, B. Slowinski, A. Arefiev, Philip Woods, I. Augustin, Yan Liang, A. Karavdina, M. Greco, P. Rosier, Antoni Szczurek, N. Saito, K. Föhl, T. Schröder, B. Singh, Mariana Nanova, Andreas Herten, Oleg V. Missevitch, S.A. Zaporozhets, K.-T. Brinkmann, Sukanta Dash, A. Filippi, A. Trzcinski, Marek Idzik, M. O. Distler, J. Schumann, C. Sowa, I. Konorov, J. C. van der Weele, Mathias Fink, A. E. Yakutin, B. Kopf, E. Atomssa, A. Pitka, R. Karabowicz, H. H. Leithoff, Angelo Rivetti, S. Pornrad, S. Diehl, M. Maggiora, B. Kröck, R. Duchat, O. Levitskaya, Gianluigi Boca, Krzysztof Korcyl, Gianangelo Bracco, Harald Kleines, F. Nerling, L. Caldeira Balkeståhl, S. Coli, E. Perevalova, T. Gessler, Klaus Peters, A. Magiera, Vassili Kachanov, M. Hawryluk, S. Ong, R. Varma, X. Shen, T. Czyzewski, M. Domagala, S. Godre, M. Zyzak, J. Pettersson, F. Uhlig, F. De Mori, P.J.J. Lemmens, Alexander D. Vasiliev, Mohammed Al-Turany, Q. Hu, Andrzej Kupsc, R. Schmitz, P. Mahlberg, P. De Remigis, C. Schnier, S. Lusso, R. Dosdall, L. Zotti, J. Van de Wiele, A. Britting, S. Fissum, Zhigang Li, Jozef Zlomanczuk, Amiran Tomaradze, S. Spataro, U. Müller, R. Valente, V. Uzhinsky, Giulio Stancari, G. S. Shabratova, I. Keshelashvili, S. Jowzaee, Harald Merkel, C. Guaraldo, S. Li, Christian Schmidt, M. Steinacher, V. Kozlov, Yu.N. Rogov, A. Bianconi, T. Held, V. Datar, Andrei Fedorov, H. Orth, T. Weber, A. Kozela, Piotr Salabura, M. Destefanis, Andrea Lavagno, M. Kuhlmann, B. Ma, J. Pychy, Piotr Lebiedowicz, L. Capozza, Dominik Kwiatkowski, Andrew Levin, A. Wilms, Germán Mazza, Matthias Richter, Wojciech Krzemien, Sean A Dobbs, J. Pochodzalla, I. Shein, H. Ohm, Paolo Montagna, Paul Alois Buhler, Y. Naryshkin, Hans Calén, A. Apostolou, S. Orfanitski, V. Grishin, A. Kashchuk, V. Kormilitsin, Tomasz Fiutowski, M. Mingnore, M. Krebs, A. Dolgolenko, E. Fioravanti, P.-E. Tegnér, A. Chlopik, A. Gromliuk, Andreas Lehrach, I. Georgadze, B. Czech, B. Zwieglinski, Kurt Hansen, W. Schäfer, C. Motzko, R. Kunne, P. Genova, J. Lühning, A. Psyzniak, S. Bianco, H. Smit, Nicola Bianchi, Felice Iazzi, J. Rieke, M. Fritsch, R. Dzhygadlo, O. Corell, E. Pace, S. I. Manaenkov, V. Chandratre, S. Sosio, A. Olshevskiy, T. Johansson, S. Sanchez, Concettina Sfienti, R. F. Parodi, D. Walther, T. Saito, E. Köhler, Zhi Sun, Markus Büscher, P. Kulessa, Magnus Wolke, I. Kisel, V. Tokmenin, Alexander Vodopyanov, J.H. Zhao, C. Wang, M. Kube, M. Kavatsyuk, T. Hennino, Johann Zmeskal, V. Varentsov, C. Morales Morales, S. Esch, R. Kliemt, G. Schepers, S. Poslavskiy, Alessandro Drago, Dan Pantea, M. Imre, W. Eyrich, D. Melnychuk, M.P. Bussa, Dirk Grunwald, I. Lehmann, D. Rodríguez Piñeiro, Kjell Fransson, A. P. Onuchin, Valery Dormenev, M. Rossbach, F. E. Maas, Giuseppe Giraudo, M. Pelizäus, D. P. Mohanta, H. Deppe, C. Rosenbaum, M. Cardinali, A. G. Denig, A. Boukharov, V. Abramov, A. Hayrapetyan, K. Pysz, Vladimir Blinov, A. K. Hergemöller, A. Ryazantsev, K. Kalita, P. Wintz, Raghunath Sahoo, V. Akishina, P. A. Semenov, V. Balanutsa, Mikael Lundin, M. M. Macri, Anne-Laure Martin, A. Karmokov, U. Cahit, A. Demekhin, G. Rosner, W. Erni, S. Plueger, S. Leiber, Michael Werner, L. Schmitt, S. Costanza, Bent Schröder, R. Arora, D. Deermann, M. Leyhe, S.A. Kononov, S. Belostotski, Ulrich Wiedner, Maria Krawczyk, L. V. Malinina, M. Tiemens, Yu.M. Mel'nik, Ch. Schmidt, O. Merle, U. Thoma, M. Babai, A. Semenov, R. Maier, Ankhi Roy, Michael Düren, L. V. Nogach, E. Widmann, A. Zhadanov, Valentino Rigato, Stanisław Kistryn, P. Fedorets, K. Suzuki, D. A. Morozov, Franco Bradamante, Torbjörn Bäck, L. Busso, C. Le Galliard, Bhavin Patel, Alessandro Bressan, K. Chinorat, M. Wojciechowski, A. Lehmann, A.F. Makarov, A. Galoyan, P. Wieczorek, T. Holtmann, Bernd Voss, Aleksandra Wrońska, J. S. Díaz, M. Hoek, D. Veretennikov, F. H. Heinsius, P. Brandys, F. Balestra, H. Flemming, F. Lisowski, H. Younis, Paweł Moskal, G. Maniscalco, P. Jasinski, V. K. Rodionov, J. G. Messchendorp, R. Schnell, O. Miklukho, D. Prasuhn, M. Zambrana, M. Kümmel, L. Cao, I. Marishev, A. Bersani, Bo Cederwall, K. Götzen, L. Lavezzi, S. Vejdani, N. G. Minaev, Herbert Löhner, V. Metag, R. W. Novotny, E. Tomasi-Gustafsson, N. B. Skachkov, A. Cebulla, Bartosz Mindur, V. Chernetsky, B. Seitz, Daniel M. Kaplan, E. K. Koshurnikov, B. Ramstein, A. Kulkarni, B. J. Roy, T. Sefzick, D. Khaneft, D. Branford, A. A. Piskun, Reinhard Beck, S. Bleser, Yu. Yu. Lobanov, R. Siudak, V. I. Lobanov, E. A. Kravchenko, S. Bukreeva, A. Samartsev, U. Thöring, F. Feldbauer, Ting Xiao, Patrick Achenbach, Hongwei Liu, Johannes Peter Wessels, D. Bettoni, Yu.I. Davydov, V. I. Dormenev, Genady Gavrilov, Ch. Wendel, M. Yu. Barabanov, Kirill M. Semenov-Tian-Shansky, R. Birsa, T. Bel, Günter Kemmerling, A. Khoukaz, V. Carassiti, B. Galnander, Jifeng Hu, M. Bragadireanu, I. A. Kuyanov, Bruce Yabsley, Andrey V. Izotov, O. Noll, J. Kunkel, A. Dbeyssi, K. Suvorov, Vivekanand Jha, Wolfgang Kuhn, Hasko Stenzel, O. Malyshev, A. A. Sokolov, U. Kurilla, G. Kuhl, D. Kaiser, P. Strzempek, A. Goerres, J. Biernat, D. G. Ireland, H. Xu, M. K. Suleimanov, G. Sterzenbach, E. Prencipe, A. Ortiz, N. I. Zhuravlev, A. Täschner, A. Gerasimov, T. Triffterer, M. Deiseroth, A. Wilson, Marek Palka, M. Lindemulder, A. Y. Barnyakov, V.Kh. Dodokhov, D. Nicmorus, Andrey Uzunian, A. Ehret, R. Nellen, Ch. Hammann, M. Steinke, V. L. Malyshev, P. Drexler, Richard Wheadon, A. Cotta Ramusino, P. Sarin, Riccardo Introzzi, H. Clement, I. Kulakov, M. Zuehlsdorf, M. Galuska, S. Kliczewski, G.B. Pontecorvo, D. Przyborowski, Mihai Caprini, V. V. Mochalov, M. Jadhav, M. Mikirtychyants, M. Traxler, Frank Goldenbaum, Research unit Nuclear & Hadron Physics, The PANDA Collaboration, Null, Singh, B. P, Erni, W., Keshelashvili, I., Krusche, B., Steinacher, M., Liu, B., Liu, H., Liu, Z., Shen, X., Wang, C., Zhao, J., Albrecht, M., Fink, M., Heinsius, F. H., Held, T., Holtmann, T., Koch, H., Kopf, B., Kümmel, M., Kuhl, G., Kuhlmann, M., Leyhe, M., Mikirtychyants, M., Musiol, P., Mustafa, A., Pelizäus, M., Pychy, J., Richter, M., Schnier, C., Schröder, T., Sowa, C., Steinke, M., Triffterer, T., Wiedner, U., Beck, R., Hammann, C., Kaiser, D., Ketzer, B., Kube, M., Mahlberg, P., Rossbach, M., Schmidt, C., Schmitz, R., Thoma, U., Walther, D., Wendel, C., Wilson, A., Bianconi, A., Bragadireanu, M., Caprini, M., Pantea, D., Pietreanu, D., Vasile, M. E., Patel, B., Kaplan, D., Brandys, P., Czyzewski, T., Czyzycki, W., Domagala, M., Hawryluk, M., Filo, G., Krawczyk, M., Kwiatkowski, D., Lisowski, E., Lisowski, F., Fiutowski, T., Idzik, M., Mindur, B., Przyborowski, D., Swientek, K., Czech, B., Kliczewski, S., Korcyl, K., Kozela, A., Kulessa, P., Lebiedowicz, P., Malgorzata, K., Pysz, K., Schäfer, W., Siudak, R., Szczurek, A., Biernat, J., Jowzaee, S., Kamys, B., Kistryn, S., Korcyl, G., Krzemien, W., Magiera, A., Moskal, P., Palka, M., Psyzniak, A., Rudy, Z., Salabura, P., Smyrski, J., Strzempek, P., Wrońska, A., Augustin, I., Lehmann, I., Nicmorus, D., Schepers, G., Schmitt, L., Al Turany, M., Cahit, U., Capozza, L., Dbeyssi, A., Deppe, H., Dzhygadlo, R., Ehret, A., Flemming, H., Gerhardt, A., Götzen, K., Karabowicz, R., Kliemt, R., Kunkel, J., Kurilla, U., Lehmann, D., Lühning, J., Maas, F., Morales Morales, C., Mora Espí, M. C., Nerling, F., Orth, H., Peters, K., Rodríguez Piñeiro, D., Saito, N., Saito, T., Sánchez Lorente, A., Schmidt, C. J., Schwarz, C., Schwiening, J., Traxler, M., Valente, R., Voss, B., Wieczorek, P., Wilms, A., Zühlsdorf, M., Abazov, V. M., Alexeev, G., Arefiev, A., Astakhov, V. I., Barabanov, M. Y. u., Batyunya, B. V., Davydov, Y. u. I., Dodokhov, V. K. h., Efremov, A. A., Fedunov, A. G., Festchenko, A. A., Galoyan, A. S., Grigoryan, S., Karmokov, A., Koshurnikov, E. K., Lobanov, V. I., Lobanov, Y. u. Y. u., Makarov, A. F., Malinina, L. V., Malyshev, V. L., Mustafaev, G. A., Olshevskiy, A., Pasyuk, M. A., Perevalova, E. A., Piskun, A. A., Pocheptsov, T. A., Pontecorvo, G., Rodionov, V. K., Rogov, Y. u. N., Salmin, R. A., Samartsev, A. G., Sapozhnikov, M. G., Shabratova, G. S., Skachkov, N. B., Skachkova, A. N., Strokovsky, E. A., Suleimanov, M. K., Teshev, R. S. h., Tokmenin, V. V., Uzhinsky, V. V., Vodopyanov, A. S., Zaporozhets, S. A., Zhuravlev, N. I., Zorin, A. G., Branford, D., Glazier, D., Watts, D., Woods, P., Britting, A., Eyrich, W., Lehmann, A., Uhlig, F., Dobbs, S., Seth, K., Tomaradze, A., Xiao, T., Bettoni, D., Carassiti, V., Cotta Ramusino, A., Dalpiaz, P., Drago, A., Fioravanti, E., Garzia, I., Savriè, M., Stancari, G., Akishina, V., Kisel, I., Kulakov, I., Zyzak, M., Arora, R., Bel, T., Gromliuk, A., Kalicy, G., Krebs, M., Patsyuk, M., Zuehlsdorf, M., Bianchi, N., Gianotti, P., Guaraldo, C., Lucherini, V., Pace, E., Bersani, A., Bracco, G., Macri, M., Parodi, R. F., Bianco, S., Bremer, D., Brinkmann, K. T., Diehl, S., Dormenev, V., Drexler, P., Düren, M., Eissner, T., Etzelmüller, E., Föhl, K., Galuska, M., Gessler, T., Gutz, E., Hayrapetyan, A., Hu, J., Kröck, B., Kühn, W., Kuske, T., Lange, S., Liang, Y., Merle, O., Metag, V., Mülhheim, D., Münchow, D., Nanova, M., Novotny, R., Pitka, A., Quagli, T., Rieke, J., Rosenbaum, C., Schnell, R., Spruck, B., Stenzel, H., Thöring, U., Ullrich, M., Wasem, T., Werner, M., Zaunick, H. G., Ireland, D., Rosner, G., Seitz, B., Deepak, P. N., Kulkarni, A. V., Apostolou, A., Babai, M., Kavatsyuk, M., Lemmens, P., Lindemulder, M., Löhner, H., Messchendorp, J., Schakel, P., Smit, H., van der Weele, J. C., Tiemens, M., Veenstra, R., Vejdani, S., Kalita, K., Mohanta, D. P., Kumar, A., Roy, A., Sahoo, R., Sohlbach, H., Büscher, M., Cao, L., Cebulla, A., Deermann, D., Dosdall, R., Esch, S., Georgadze, I., Gillitzer, A., Goerres, A., Goldenbaum, F., Grunwald, D., Herten, A., Hu, Q., Kemmerling, G., Kleines, H., Kozlov, V., Lehrach, A., Leiber, S., Maier, R., Nellen, R., Ohm, H., Orfanitski, S., Prasuhn, D., Prencipe, E., Ritman, J., Schadmand, S., Schumann, J., Sefzick, T., Serdyuk, V., Sterzenbach, G., Stockmanns, T., Wintz, P., Wüstner, P., Xu, H., Li, S., Li, Z., Sun, Z., Rigato, V., Fissum, S., Hansen, K., Isaksson, L., Lundin, M., Schröder, B., Achenbach, P., Bleser, S., Cardinali, M., Corell, O., Deiseroth, M., Denig, A., Distler, M., Feldbauer, F., Fritsch, M., Jasinski, P., Hoek, M., Kangh, D., Karavdina, A., Lauth, W., Leithoff, H., Merkel, H., Michel, M., Motzko, C., Müller, U., Noll, O., Plueger, S., Pochodzalla, J., Sanchez, S., Schlimme, S., Sfienti, C., Steinen, M., Thiel, M., Weber, T., Zambrana, M., Dormenev, V. I., Fedorov, A. A., Korzihik, M. V., Missevitch, O. V., Balanutsa, P., Balanutsa, V., Chernetsky, V., Demekhin, A., Dolgolenko, A., Fedorets, P., Gerasimov, A., Goryachev, V., Varentsov, V., Boukharov, A., Malyshev, O., Marishev, I., Semenov, A., Konorov, I., Paul, S., Grieser, S., Hergemöller, A. K., Khoukaz, A., Köhler, E., Täschner, A., Wessels, J., Dash, S., Jadhav, M., Kumar, S., Sarin, P., Varma, R., Chandratre, V. B., Datar, V., Dutta, D., Jha, V., Kumawat, H., Mohanty, A. K., Roy, B., Yan, Y., Chinorat, K., Khanchai, K., Ayut, L., Pornrad, S., Barnyakov, A. Y., Blinov, A. E., Blinov, V. E., Bobrovnikov, V. S., Kononov, S. A., Kravchenko, E. A., Kuyanov, I. A., Onuchin, A. P., Sokolov, A. A., Tikhonov, Y. A., Atomssa, E., Hennino, T., Imre, M., Kunne, R., Le Galliard, C., Ma, B., Marchand, D., Ong, S., Ramstein, B., Rosier, P., Tomasi Gustafsson, E., Van de Wiele, J., Boca, G., Costanza, S., Genova, P., Lavezzi, L., Montagna, P., Rotondi, A., Abramov, V., Belikov, N., Bukreeva, S., Davidenko, A., Derevschikov, A., Goncharenko, Y., Grishin, V., Kachanov, V., Kormilitsin, V., Melnik, Y., Levin, A., Minaev, N., Mochalov, V., Morozov, D., Nogach, L., Poslavskiy, S., Ryazantsev, A., Ryzhikov, S., Semenov, P., Shein, I., Uzunian, A., Vasiliev, A., Yakutin, A., Yabsley, B., Bäck, T., Cederwall, B., Makónyi, K., Tegnér, P. E., von Würtemberg, K. M., Belostotski, S., Gavrilov, G., Izotov, A., Kashchuk, A., Levitskaya, O., Manaenkov, S., Miklukho, O., Naryshkin, Y., Suvorov, K., Veretennikov, D., Zhadanov, A., Rai, A. K., Godre, S. S., Duchat, R., Amoroso, A., Bussa, M. P., Busso, L., De Mori, F., Destefanis, M., Fava, L., Ferrero, L., Greco, M., Maggiora, M., Maniscalco, G., Marcello, S., Sosio, S., Spataro, S., Zotti, L., Calvo, D., Coli, S., De Remigis, P., Filippi, A., Giraudo, G., Lusso, S., Mazza, G., Mingnore, M., Rivetti, A., Wheadon, R., Balestra, F., Iazzi, F., Introzzi, R., Lavagno, A., Younis, H., Birsa, Renato, Bradamante, Franco, Bressan, Andrea, Martin, Anna, Clement, H., Gålnander, B., Caldeira Balkeståhl, L., Calén, H., Fransson, K., Johansson, T., Kupsc, A., Marciniewski, P., Pettersson, J., Schönning, K., Wolke, M., Zlomanczuk, J., Díaz, J., Ortiz, A., Vinodkumar, P. C., Parmar, A., Chlopik, A., Melnychuk, D., Slowinski, B., Trzcinski, A., Wojciechowski, M., Wronka, S., Zwieglinski, B., Bühler, P., Marton, J., Suzuki, K., Widmann, E., Zmeskal, J., Fröhlich, B., Khaneft, D., Lin, D., Zimmermann, I., and Semenov Tian Shansky, K.
Subjects: Particle physics, (P)Over-Baranda, Nuclear and High Energy Physics, Electroproduction, Hadron, Annihilation, FOS: Physical sciences, 7. Clean energy, 01 natural sciences, Particle identification, Nucleon, NO, Nuclear physics, High Energy Physics - Experiment (hep-ex), High Energy Physics - Phenomenology (hep-ph), Factorization, 0103 physical sciences, Fysik, Invariant mass, ddc:530, Meson Production, Monte-Carlo, Nuclear Experiment (nucl-ex), 010306 general physics, Nuclear Experiment, Physics, Quantum chromodynamics, 010308 nuclear & particles physics, Perturbative QCD, Qcd, Physical Sciences, Exclusive Processes, High Energy Physics::Experiment, Pi(0), Cross-Sections, Energy (signal processing)
Abstract: Baryon-to-meson Transition Distribution Amplitudes (TDAs) encoding valuable new information on hadron structure appear as building blocks in the collinear factorized description for several types of hard exclusive reactions. In this paper, we address the possibility of accessing nucleon-to-pion ($��N$) TDAs from $\bar{p}p \to e^+e^- ��^0$ reaction with the future PANDA detector at the FAIR facility. At high center of mass energy and high invariant mass squared of the lepton pair $q^2$, the amplitude of the signal channel $\bar{p}p \to e^+e^- ��^0$ admits a QCD factorized description in terms of $��N$ TDAs and nucleon Distribution Amplitudes (DAs) in the forward and backward kinematic regimes. Assuming the validity of this factorized description, we perform feasibility studies for measuring $\bar{p}p \to e^+e^- ��^0$ with the PANDA detector. Detailed simulations on signal reconstruction efficiency as well as on rejection of the most severe background channel, i.e. $\bar{p}p \to ��^+��^- ��^0$ were performed for the center of mass energy squared $s = 5$ GeV$^2$ and $s = 10$ GeV$^2$, in the kinematic regions $3.0 < q^2 < 4.3$ GeV$^2$ and $5 < q^2 < 9$ GeV$^2$, respectively, with a neutral pion scattered in the forward or backward cone $| \cos��_{��^0}| > 0.5 $ in the proton-antiproton center of mass frame. Results of the simulation show that the particle identification capabilities of the PANDA detector will allow to achieve a background rejection factor of $5\cdot 10^7$ ($1\cdot 10^7$) at low (high) $q^2$ for $s=5$ GeV$^2$, and of $1\cdot 10^8$ ($6\cdot 10^6$) at low (high) $q^2$ for $s=10$ GeV$^2$, while keeping the signal reconstruction efficiency at around $40\%$. At both energies, a clean lepton signal can be reconstructed with the expected statistics corresponding to $2$ fb$^{-1}$ of integrated luminosity. (.../...), 19 pages, 7 figures (some multiple), 2 tables (each double), preprint of an article for epj - v2
Published: 2015

27. Technical design report for the $\overline{P}$ ANDA (AntiProton Annihilations at Darmstadt) Straw Tube Tracker

Author: W. Erni, I. Keshelashvili, B. Krusche, M. Steinacher, Y. Heng, Z. Liu, H. Liu, X. Shen, Q. Wang, H. Xu, A. Aab, M. Albrecht, J. Becker, A. Csapó, F. Feldbauer, M. Fink, P. Friedel, F. H. Heinsius, T. Held, L. Klask, H. Koch, B. Kopf, S. Leiber, M. Leyhe, C. Motzko, M. Pelizäus, J. Pychy, B. Roth, T. Schröder, J. Schulze, C. Sowa, M. Steinke, T. Trifterer, U. Wiedner, J. Zhong, R. Beck, S. Bianco, K. T. Brinkmann, C. Hammann, F. Hinterberger, D. Kaiser, R. Kliemt, M. Kube, A. Pitka, T. Quagli, C. Schmidt, R. Schmitz, R. Schnell, U. Thoma, P. Vlasov, D. Walther, C. Wendel, T. Würschig, H. G. Zaunick, A. Bianconi, M. Bragadireanu, M. Caprini, D. Pantea, D. Pantelica, D. Pietreanu, L. Serbina, P. D. Tarta, D. Kaplan, T. Fiutowski, M. Idzik, B. Mindur, D. Przyborowski, K. Swientek, B. Czech, M. Kistryn, S. Kliczewski, A. Kozela, P. Kulessa, P. Lebiedowicz, K. Pysz, W. Schäfer, R. Siudak, A. Szczurek, S. Jowzaee, M. Kajetanowicz, B. Kamys, S. Kistryn, G. Korcyl, K. Korcyl, W. Krzemien, A. Magiera, P. Moskal, M. Palka, Z. Rudy, P. Salabura, J. Smyrski, A. Wrońska, I. Augustin, I. Lehmann, D. Nimorus, G. Schepers, M. Al-Turany, R. Arora, H. Deppe, H. Flemming, A. Gerhardt, K. Götzen, A. F. Jordi, G. Kalicy, R. Karabowicz, D. Lehmann, B. Lewandowski, J. Lühning, F. Maas, H. Orth, M. Patsyuk, K. Peters, T. Saito, C. J. Schmidt, L. Schmitt, C. Schwarz, J. Schwiening, M. Traxler, B. Voss, P. Wieczorek, A. Wilms, M. Zühlsdorf, V. M. Abazov, G. Alexeev, A. Arefiev, V. I. Astakhov, M. Yu. Barabanov, B. V. Batyunya, Yu. I. Davydov, V. Kh. Dodokhov, A. A. Efremov, A. G. Fedunov, A. A. Festchenko, A. S. Galoyan, S. Grigoryan, A. Karmokov, E. K. Koshurnikov, V. I. Lobanov, Yu. Yu. Lobanov, A. F. Makarov, L. V. Malinina, V. L. Malyshev, G. A. Mustafaev, A. Olshevskiy, M. A. Pasyuk, E. A. Perevalova, A. A. Piskun, T. A. Pocheptsov, G. Pontecorvo, V. K. Rodionov, Yu. N. Rogov, R. A. Salmin, A. G. Samartsev, M. G. Sapozhnikov, G. S. Shabratova, A. N. Skachkova, N. B. Skachkov, E. A. Strokovsky, M. K. Suleimanov, R. Sh. Teshev, V. V. Tokmenin, V. V. Uzhinsky, A. S. Vodopyanov, S. A. Zaporozhets, N. I. Zhuravlev, A. G. Zorin, D. Branford, D. Glazier, D. Watts, P. Woods, A. Britting, W. Eyrich, A. Lehmann, F. Uhlig, S. Dobbs, Z. Metreveli, K. Seth, A. Tomaradze, T. Xiao, D. Bettoni, V. Carassiti, A. Cotta Ramusino, P. Dalpiaz, A. Drago, E. Fioravanti, I. Garzia, M. Savriè, G. Stancari, N. Bianchi, P. Gianotti, C. Guaraldo, V. Lucherini, D. Orecchini, E. Pace, A. Bersani, G. Bracco, M. Macri, R. F. Parodi, D. Bremer, V. Dormenev, P. Drexler, M. Düren, T. Eissner, K. Föhl, M. Galuska, T. Gessler, A. Hayrapetyan, J. Hu, P. Koch, B. Kröck, W. Kühn, S. Lange, Y. Liang, O. Merle, V. Metag, M. Moritz, D. Münchow, M. Nanova, R. Novotny, B. Spruck, H. Stenzel, T. Ullrich, M. Werner, C. Euan, M. Hoek, D. Ireland, T. Keri, R. Montgomery, D. Protopopescu, G. Rosner, B. Seitz, M. Babai, A. Glazenborg-Kluttig, M. Kavatsyuk, P. Lemmens, M. Lindemulder, H. Löhner, J. Messchendorp, H. Moeini, P. Schakel, F. Schreuder, H. Smit, G. Tambave, J. C. van der Weele, R. Veenstra, H. Sohlbach, M. Büscher, D. Deermann, R. Dosdall, S. Esch, A. Gillitzer, F. Goldenbaum, D. Grunwald, S. Henssler, A. Herten, Q. Hu, G. Kemmerling, H. Kleines, V. Kozlov, A. Lehrach, R. Maier, M. Mertens, H. Ohm, S. Orfanitski, D. Prasuhn, T. Randriamalala, J. Ritman, M. Röder, S. Schadmand, V. Serdyuk, G. Sterzenbach, T. Stockmanns, P. Wintz, P. Wüstner, J. Kisiel, S. Li, Z. Li, Z. Sun, V. Rigato, S. Fissum, K. Hansen, L. Isaksson, M. Lundin, B. Schröder, P. Achenbach, S. Bleser, U. Cahit, M. Cardinali, A. Denig, M. Distler, M. Fritsch, P. Jasinski, D. Kangh, A. Karavdina, W. Lauth, H. Merkel, M. Michel, M. C. Mora Espi, U. Müller, J. Pochodzalla, S. Sanchez, A. Sanchez-Lorente, S. Schlimme, C. Sfienti, M. Thiel, T. Weber, V. I. Dormenev, A. A. Fedorov, M. V. Korzhik, O. V. Missevitch, V. Balanutsa, V. Chernetsky, A. Demekhin, A. Dolgolenko, P. Fedorets, A. Gerasimov, V. Goryachev, V. Varentsov, A. Boukharov, O. Malyshev, I. Marishev, A. Semenov, F. Böhmer, S. Dørheim, B. Ketzer, S. Paul, A. K. Hergemöller, A. Khoukaz, E. Köhler, A. Täschner, J. Wessels, R. Varma, A. Chaterjee, V. Jha, S. Kailas, B. J. Roy, Y. Yan, K. Chinorat, K. Khanchai, L. Ayut, S. Pomrad, E. Baldin, K. Kotov, S. Peleganchuk, Yu. Tikhonov, J. Boucher, V. Chambert, A. Dbeyssi, M. Gumberidze, T. Hennino, M. Imre, R. Kunne, C. Le Galliard, B. Ma, D. Marchand, A. Maroni, S. Ong, B. Ramstein, P. Rosier, E. Tomasi-Gustafsson, J. Van de Wiele, G. Boca, A. Braghieri, S. Costanza, P. Genova, L. Lavezzi, P. Montagna, A. Rotondi, V. Abramov, N. Belikov, A. Davidenko, A. Derevschikov, Y. Goncharenko, V. Grishin, V. Kachanov, D. Konstantinov, V. Kormilitsin, Y. Melnik, A. Levin, N. Minaev, V. Mochalov, D. Morozov, L. Nogach, S. Poslavskiy, A. Ryazantsev, S. Ryzhikov, P. Semenov, I. Shein, A. Uzunian, A. Vasiliev, A. Yakutin, T. Bäck, B. Cederwall, K. Makónyi, P. E. Tegnér, K. M. von Würtemberg, S. Belostotski, G. Gavrilov, A. Itzotov, A. Kashchuk, A. Kisselev, P. Kravchenko, O. Levitskaya, S. Manaenkov, O. Miklukho, Y. Naryshkin, D. Veretennikov, V. Vikhrov, A. Zhadanov, D. Alberto, A. Amoroso, M. P. Bussa, L. Busso, F. De Mori, M. Destefanis, L. Fava, L. Ferrero, M. Greco, M. Maggiora, S. Marcello, S. Sosio, S. Spataro, L. Zotti, D. Calvo, S. Coli, P. De Remigis, A. Filippi, G. Giraudo, S. Lusso, G. Mazza, O. Morra, A. Rivetti, R. Wheadon, F. Iazzi, A. Lavagno, H. Younis, R. Birsa, F. Bradamante, A. Bressan, A. Martin, H. Clement, B. Galander, L. Caldeira Balkeståhl, H. Calén, K. Fransson, T. Johansson, A. Kupsc, P. Marciniewski, E. Thomé, M. Wolke, J. Zlomanczuk, J. Díaz, A. Ortiz, K. Dmowski, P. Duda, R. Korzeniewski, B. Slowinski, A. Chlopik, Z. Guzik, K. Kosinski, D. Melnychuk, A. Wasilewski, M. Wojciechowski, S. Wronka, A. Wysocka, B. Zwieglinski, P. Bühler, O. N. Hartman, P. Kienle, J. Marton, K. Suzuki, E. Widmann, and J. Zmeskal
Subjects: Straw tube, Nuclear and High Energy Physics, Spectrometer, Physics::Instrumentation and Detectors, 010308 nuclear & particles physics, Computer science, Detector, Tracking (particle physics), 01 natural sciences, Particle identification, NO, Set (abstract data type), Computer Science::Hardware Architecture, 0103 physical sciences, Trajectory, Benchmark (computing), Nuclear Experiment, 010306 general physics, Simulation
Abstract: This document describes the technical layout and the expected performance of the Straw Tube Tracker (STT), the main tracking detector of the $\bar{P}$ANDA target spectrometer. The STT encloses a Micro-Vertex-Detector (MVD) for the inner tracking and is followed in beam direction by a set of GEM stations. The tasks of the STT are the measurement of the particle momentum from the reconstructed trajectory and the measurement of the specific energy loss for a particle identification. Dedicated simulations with full analysis studies of certain proton-antiproton reactions, identified as being benchmark tests for the whole $\bar{P}$ANDA scientific program, have been performed to test the STT layout and performance. The results are presented, and the time lines to construct the STT are described.
Published: 2013

28. Charging and Powersport for Motorcycles: A Contradiction?

Author: T. Schabetsberger, Martin Abart, Christian Zinner, Oliver Schögl, St. Schmidt, and S. Leiber
Subjects: Computer science, media_common.quotation_subject, Contradiction, Neoclassical economics, media_common
Published: 2011

29. Gesundheitssystemwandel und grenzüberschreitender Ideentransfer in Deutschland, den Niederlanden und Österreich (eingeladener Vortrag)

Author: S Greß and S Leiber
Subjects: Public Health, Environmental and Occupational Health
Published: 2010

30. Small intestinal damage and changes in cell population produced by ethanol ingestion in the rat

Author: E, Barona, R C, Pirola, and C S, Leiber
Subjects: Dose-Response Relationship, Drug, Ethanol, Mitosis, Cell Count, DNA, Alkaline Phosphatase, Tritium, Thymidine Kinase, Galactosidases, Rats, Jejunum, Oxygen Consumption, Ileum, Intestine, Small, Animals, Thymidine
Published: 1974

31. Ethanol-induced lipid peroxidation: potentiation by long-term alcohol feeding and attenuation by methionine

Author: S, Shaw, E, Jayatilleke, W A, Ross, E R, Gordon, and C S, Leiber
Subjects: Male, Lipid Peroxides, Methionine, Time Factors, Ethanol, Liver, Fatty Acids, Animals, Glutathione, Phospholipids, Papio, Rats
Abstract: Lipid peroxidation has been incriminated in some types of drug-induced liver injury, but it is unclear whether it contributes to or is present in alcoholic liver injury. In order to study this question, hepatic lipid peroxidation (measured as formation of diene conjugates) and hepatic GSH were assessed in baboons and rats after short- and long-term ethanol administration. Compared to controls, baboons fed alcohol for 1 to 4 years (chronic administration) had increased hepatic diene conjugates (16.9 +/- 4.8 OD/gm of liver) and depressed GSH (3.8 +/- 0.6 VS. 6.3 +/- 0.8 mumol/gm of liver; p less than 0.01) after an overnight withdrawal from ethanol. Administration of 1.6 gm/kg ethanol over 6 hr (acute administration) increased diene conjugates (17.6 +/- 4.3) and decreased GSH (3.2 +/- 0.5; p less than 0.01) in control animals and had an even greater effect in animals chronically fed alcohol (diene conjugates 48.5 +/- 9.2; GSH 1.8 +/- 0.3; p less than 0.001). In six rats fed alcohol for 5 to 6 weeks (chronic administration), an increase in diene conjugates was detected in microsomes (0.343 +/- 0.210 OD/mg of lipid) and mitochondria (0.143 +/- 0.061), accompanied by decrease in arachidonic acid and C22 polyenes, after acute ethanol administration (3 gm/kg p.o.) but no significant change in GSH. Simultaneous administration of methionine attenuated diene conjugate formation (0.107 +/- 0.058 and 0.035 +/- 0.020 OD/mg of lipid, respectively) and fatty acid changes. Thus chronic alcohol feeding potentiates lipid peroxidation produced by an acute dose of ethanol; these changes are not dependent on GSH depression but may be potentiated by it.
Published: 1981

32. Precision Measurement of the Branching Fractions of η^{'} Decays.

Author: Ablikim M, Achasov MN, Ahmed S, Albrecht M, Alekseev M, Amoroso A, An FF, An Q, Bai Y, Bakina O, Baldini Ferroli R, Ban Y, Begzsuren K, Bennett DW, Bennett JV, Berger N, Bertani M, Bettoni D, Bianchi F, Boger E, Boyko I, Briere RA, Cai H, Cai X, Calcaterra A, Cao GF, Cetin SA, Chai J, Chang JF, Chang WL, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen PL, Chen SJ, Chen XR, Chen YB, Cheng W, Chu XK, Cibinetto G, Cossio F, Dai HL, Dai JP, Dbeyssi A, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong C, Dong J, Dong LY, Dong MY, Dou ZL, Du SX, Duan PF, Fan JZ, Fang J, Fang SS, Fang Y, Farinelli R, Fava L, Feldbauer F, Felici G, Feng CQ, Fritsch M, Fu CD, Gao Q, Gao XL, Gao Y, Gao YG, Gao Z, Garillon B, Garzia I, Gilman A, Goetzen K, Gong L, Gong WX, Gradl W, Greco M, Gu LM, Gu MH, Gu YT, Guo AQ, Guo LB, Guo RP, Guo YP, Guskov A, Haddadi Z, Han S, Hao XQ, Harris FA, He KL, Heinsius FH, Held T, Heng YK, Hou ZL, Hu HM, Hu JF, Hu T, Hu Y, Huang GS, Huang JS, Huang XT, Huang XZ, Huang ZL, Hussain T, Ikegami Andersson W, Imoehl W, Irshad M, Ji Q, Ji QP, Ji XB, Ji XL, Jiang HL, Jiang XS, Jiang XY, Jiao JB, Jiao Z, Jin DP, Jin S, Jin Y, Johansson T, Kalantar-Nayestanaki N, Kang XS, Kavatsyuk M, Ke BC, Keshk IK, Khan T, Khoukaz A, Kiese P, Kiuchi R, Kliemt R, Koch L, Kolcu OB, Kopf B, Kuemmel M, Kuessner M, Kupsc A, Kurth M, Kühn W, Lange JS, Larin P, Lavezzi L, Leiber S, Leithoff H, Li C, Li C, Li DM, Li F, Li FY, Li G, Li HB, Li HJ, Li JC, Li JW, Li KJ, Li K, Li K, Li LK, Li L, Li PL, Li PR, Li QY, Li T, Li WD, Li WG, Li XL, Li XN, Li XQ, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Liao LZ, Libby J, Lin CX, Lin DX, Liu B, Liu BJ, Liu CX, Liu D, Liu DY, Liu FH, Liu F, Liu F, Liu HB, Liu HL, Liu HM, Liu H, Liu H, Liu JB, Liu JY, Liu KY, Liu K, Liu LD, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Long YF, Lou XC, Lu HJ, Lu JG, Lu Y, Lu YP, Luo CL, Luo MX, Luo PW, Luo T, Luo XL, Lusso S, Lyu XR, Ma FC, Ma HL, Ma LL, Ma MM, Ma QM, Ma XN, Ma XY, Ma YM, Maas FE, Maggiora M, Maldaner S, Malik QA, Mangoni A, Mao YJ, Mao ZP, Marcello S, Meng ZX, Messchendorp JG, Mezzadri G, Min J, Min TJ, Mitchell RE, Mo XH, Mo YJ, Morales CM, Muchnoi NY, Muramatsu H, Mustafa A, Nakhoul S, Nefedov Y, Nerling F, Nikolaev IB, Ning Z, Nisar S, Niu SL, Niu XY, Olsen SL, Ouyang Q, Pacetti S, Pan Y, Papenbrock M, Patteri P, Pelizaeus M, Pellegrino J, Peng HP, Peng ZY, Peters K, Pettersson J, Ping JL, Ping RG, Pitka A, Poling R, Prasad V, Qi HR, Qi M, Qi TY, Qian S, Qiao CF, Qin N, Qin XS, Qin ZH, Qiu JF, Qu SQ, Rashid KH, Redmer CF, Richter M, Ripka M, Rivetti A, Rolo M, Rong G, Rosner C, Sarantsev A, Savrié M, Schoenning K, Shan W, Shan XY, Shao M, Shen CP, Shen PX, Shen XY, Sheng HY, Shi X, Song JJ, Song WM, Song XY, Sosio S, Sowa C, Spataro S, Sui FF, Sun GX, Sun JF, Sun L, Sun SS, Sun XH, Sun YJ, Sun YK, Sun YZ, Sun ZJ, Sun ZT, Tan YT, Tang CJ, Tang GY, Tang X, Tiemens M, Tsednee B, Uman I, Wang B, Wang BL, Wang CW, Wang D, Wang DY, Wang HH, Wang K, Wang LL, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WP, Wang XF, Wang Y, Wang YF, Wang YQ, Wang Z, Wang ZG, Wang ZY, Wang Z, Weber T, Wei DH, Weidenkaff P, Wen SP, Wiedner U, Wolke M, Wu LH, Wu LJ, Wu Z, Xia L, Xia X, Xia Y, Xiao D, Xiao YJ, Xiao ZJ, Xie YG, Xie YH, Xiong XA, Xiu QL, Xu GF, Xu JJ, Xu L, Xu QJ, Xu XP, Yan F, Yan L, Yan WB, Yan WC, Yan YH, Yang HJ, Yang HX, Yang L, Yang RX, Yang SL, Yang YH, Yang YX, Yang Y, Yang ZQ, Ye M, Ye MH, Yin JH, You ZY, Yu BX, Yu CX, Yu JS, Yuan CZ, Yuan Y, Yuncu A, Zafar AA, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang J, Zhang JL, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang K, Zhang L, Zhang SF, Zhang TJ, Zhang XY, Zhang Y, Zhang YH, Zhang YT, Zhang Y, Zhang Y, Zhang Y, Zhang ZH, Zhang ZP, Zhang ZY, Zhao G, Zhao JW, Zhao JY, Zhao JZ, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng WJ, Zheng YH, Zhong B, Zhou L, Zhou Q, Zhou X, Zhou XK, Zhou XR, Zhou XY, Zhou X, Zhou X, Zhu AN, Zhu J, Zhu J, Zhu K, Zhu KJ, Zhu S, Zhu SH, Zhu XL, Zhu YC, Zhu YS, Zhu ZA, Zhuang J, Zou BS, and Zou JH
Abstract: Based on a sample of (1310.6±7.0)×10^{6}J/ψ events collected with the BESIII detector, we present measurements of J/ψ and η^{'} absolute branching fractions using the process J/ψ→γη^{'}. By analyzing events where the radiative photon converts into an e^{+}e^{-} pair, the branching fraction for J/ψ→γη^{'} is measured to be (5.27±0.03±0.05)×10^{-3}. The absolute branching fractions of the five dominant decay channels of the η^{'} are then measured for the first time and are determined to be B(η^{'}→γπ^{+}π^{-})=(29.90±0.03±0.55)%, B(η^{'}→ηπ^{+}π^{-})=(41.24±0.08±1.24)%, B(η^{'}→ηπ^{0}π^{0})=(21.36±0.10±0.92)%, B(η^{'}→γω)=(2.489±0.018±0.074)%, and B(η^{'}→γγ)=(2.331±0.012±0.035)%, where the first uncertainties are statistical and the second systematic.
Published: 2019
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33. Measurement of the Dynamics of the Decays D_{s}^{+}→η^{(')}e^{+}ν_{e}.

Author: Ablikim M, Achasov MN, Ahmed S, Albrecht M, Alekseev M, Amoroso A, An FF, An Q, Bai JZ, Bai Y, Bakina O, Baldini Ferroli R, Ban Y, Begzsuren K, Bennett DW, Bennett JV, Berger N, Bertani M, Bettoni D, Bianchi F, Boger E, Boyko I, Briere RA, Cai H, Cai X, Calcaterra A, Cao GF, Cetin SA, Chai J, Chang JF, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen PL, Chen SJ, Chen XR, Chen YB, Cheng W, Chu XK, Cibinetto G, Cossio F, Dai HL, Dai JP, Dbeyssi A, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong C, Dong J, Dong LY, Dong MY, Dou ZL, Du SX, Duan PF, Fang J, Fang SS, Fang Y, Farinelli R, Fava L, Fegan S, Feldbauer F, Felici G, Feng CQ, Fioravanti E, Fritsch M, Fu CD, Gao Q, Gao XL, Gao Y, Gao YG, Gao Z, Garillon B, Garzia I, Gilman A, Goetzen K, Gong L, Gong WX, Gradl W, Greco M, Gu LM, Gu MH, Gu YT, Guo AQ, Guo LB, Guo RP, Guo YP, Guskov A, Haddadi Z, Han S, Hao XQ, Harris FA, He KL, He XQ, Heinsius FH, Held T, Heng YK, Hou ZL, Hu HM, Hu JF, Hu T, Hu Y, Huang GS, Huang JS, Huang XT, Huang XZ, Huang ZL, Hussain T, Ikegami Andersson W, Irshad M, Ji Q, Ji QP, Ji XB, Ji XL, Jiang XS, Jiang XY, Jiao JB, Jiao Z, Jin DP, Jin S, Jin Y, Johansson T, Julin A, Kalantar-Nayestanaki N, Kang XS, Kavatsyuk M, Ke BC, Keshk IK, Khan T, Khoukaz A, Kiese P, Kiuchi R, Kliemt R, Koch L, Kolcu OB, Kopf B, Kornicer M, Kuemmel M, Kuessner M, Kupsc A, Kurth M, Kühn W, Lange JS, Larin P, Lavezzi L, Leiber S, Leithoff H, Li C, Li C, Li DM, Li F, Li FY, Li G, Li HB, Li HJ, Li JC, Li JW, Li KJ, Li K, Li K, Li L, Li PL, Li PR, Li QY, Li T, Li WD, Li WG, Li XL, Li XN, Li XQ, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Liao LZ, Libby J, Lin CX, Lin DX, Liu B, Liu BJ, Liu CX, Liu D, Liu DY, Liu FH, Liu F, Liu F, Liu HB, Liu HL, Liu HM, Liu H, Liu H, Liu JB, Liu JY, Liu KY, Liu K, Liu LD, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Long YF, Lou XC, Lu HJ, Lu JG, Lu Y, Lu YP, Luo CL, Luo MX, Luo T, Luo XL, Lusso S, Lyu XR, Ma FC, Ma HL, Ma LL, Ma MM, Ma QM, Ma T, Ma XN, Ma XY, Ma YM, Maas FE, Maggiora M, Maldaner S, Malik QA, Mangoni A, Mao YJ, Mao ZP, Marcello S, Meng ZX, Messchendorp JG, Mezzadri G, Min J, Min TJ, Mitchell RE, Mo XH, Mo YJ, Morales Morales C, Muchnoi NY, Muramatsu H, Mustafa A, Nakhoul S, Nefedov Y, Nerling F, Nikolaev IB, Ning Z, Nisar S, Niu SL, Niu XY, Olsen SL, Ouyang Q, Pacetti S, Pan Y, Papenbrock M, Patteri P, Pelizaeus M, Pellegrino J, Peng HP, Peng ZY, Peters K, Pettersson J, Ping JL, Ping RG, Pitka A, Poling R, Prasad V, Qi HR, Qi M, Qi TY, Qian S, Qiao CF, Qin N, Qin XS, Qin ZH, Qiu JF, Qu SQ, Rashid KH, Redmer CF, Richter M, Ripka M, Rivetti A, Rolo M, Rong G, Rosner C, Sarantsev A, Savrié M, Schoenning K, Shan W, Shan XY, Shao M, Shen CP, Shen PX, Shen XY, Sheng HY, Shi X, Song JJ, Song WM, Song XY, Sosio S, Sowa C, Spataro S, Sun GX, Sun JF, Sun L, Sun SS, Sun XH, Sun YJ, Sun YK, Sun YZ, Sun ZJ, Sun ZT, Tan YT, Tang CJ, Tang GY, Tang X, Tiemens M, Tsednee B, Uman I, Wang B, Wang BL, Wang CW, Wang D, Wang DY, Wang D, Wang K, Wang LL, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WP, Wang XF, Wang Y, Wang YF, Wang Z, Wang ZG, Wang ZY, Wang Z, Weber T, Wei DH, Weidenkaff P, Wen SP, Wiedner U, Wolke M, Wu LH, Wu LJ, Wu Z, Xia L, Xia X, Xia Y, Xiao D, Xiao YJ, Xiao ZJ, Xie YG, Xie YH, Xiong XA, Xiu QL, Xu GF, Xu JJ, Xu L, Xu QJ, Xu XP, Yan F, Yan L, Yan WB, Yan WC, Yan YH, Yang HJ, Yang HX, Yang L, Yang RX, Yang YH, Yang YX, Yang Y, Yang ZQ, Ye M, Ye MH, Yin JH, You ZY, Yu BX, Yu CX, Yu JS, Yu JS, Yuan CZ, Yuan Y, Yuncu A, Zafar AA, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang J, Zhang JL, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang K, Zhang L, Zhang SF, Zhang TJ, Zhang XY, Zhang Y, Zhang YH, Zhang YT, Zhang Y, Zhang Y, Zhang Y, Zhang ZH, Zhang ZP, Zhang ZY, Zhao G, Zhao JW, Zhao JY, Zhao JZ, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng WJ, Zheng YH, Zhong B, Zhou L, Zhou Q, Zhou X, Zhou XK, Zhou XR, Zhou XY, Zhou X, Zhou X, Zhu AN, Zhu J, Zhu J, Zhu K, Zhu KJ, Zhu S, Zhu SH, Zhu XL, Zhu YC, Zhu YS, Zhu ZA, Zhuang J, Zou BS, and Zou JH
Abstract: Using e^{+}e^{-} annihilation data corresponding to an integrated luminosity of 3.19 fb^{-1} collected at a center-of-mass energy of 4.178 GeV with the BESIII detector, we measure the absolute branching fractions B_{D_{s}^{+}→ηe^{+}ν_{e}}=(2.323±0.063_{stat}±0.063_{syst})% and B_{D_{s}^{+}→η^{'}e^{+}ν_{e}}=(0.824±0.073_{stat}±0.027_{syst})% via a tagged analysis technique, where one D_{s} is fully reconstructed in a hadronic mode. Combining these measurements with previous BESIII measurements of B_{D^{+}→η^{(')}e^{+}ν_{e}}, the η-η^{'} mixing angle in the quark flavor basis is determined to be ϕ_{P}=(40.1±2.1_{stat}±0.7_{syst})°. From the first measurements of the dynamics of D_{s}^{+}→η^{(')}e^{+}ν_{e} decays, the products of the hadronic form factors f_{+}^{η^{(')}}(0) and the Cabibbo-Kobayashi-Maskawa matrix element |V_{cs}| are determined with different form factor parametrizations. For the two-parameter series expansion, the results are f_{+}^{η}(0)|V_{cs}|=0.4455±0.0053_{stat}±0.0044_{syst} and f_{+}^{η^{'}}(0)|V_{cs}|=0.477±0.049_{stat}±0.011_{syst}.
Published: 2019
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34. Evidence of a Resonant Structure in the e^{+}e^{-}→π^{+}D^{0}D^{*-} Cross Section between 4.05 and 4.60 GeV.

Author: Ablikim M, Achasov MN, Ahmed S, Albrecht M, Amoroso A, An FF, An Q, Bai Y, Bakina O, Baldini Ferroli R, Ban Y, Bennett DW, Bennett JV, Berger N, Bertani M, Bettoni D, Bian JM, Bianchi F, Boger E, Boyko I, Briere RA, Cai H, Cai X, Cakir O, Calcaterra A, Cao GF, Cetin SA, Chai J, Chang JF, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen PL, Chen SJ, Chen YB, Cibinetto G, Dai HL, Dai JP, Dbeyssi A, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong C, Dong J, Dong LY, Dong MY, Dou ZL, Du SX, Duan PF, Fan JZ, Fang J, Fang SS, Fang X, Fang Y, Farinelli R, Fava L, Fegan S, Feldbauer F, Felici G, Feng CQ, Fritsch M, Fu CD, Gao Q, Gao XL, Gao Y, Gao YG, Gao Z, Garzia I, Goetzen K, Gong L, Gong WX, Gradl W, Greco M, Gu MH, Gu S, Gu YT, Guo AQ, Guo LB, Guo RP, Guo YP, Haddadi Z, Han S, Hao XQ, Harris FA, He KL, Heinsius FH, Held T, Heng YK, Holtmann T, Hou ZL, Hu C, Hu HM, Hu T, Hu Y, Huang GS, Huang JS, Huang XT, Huang XZ, Huang ZL, Hussain T, Ikegami Andersson W, Ji Q, Ji QP, Ji XB, Ji XL, Jiang XS, Jiang XY, Jiao JB, Jiao Z, Jin DP, Jin S, Jin Y, Johansson T, Julin A, Kalantar-Nayestanaki N, Kang XL, Kang XS, Kavatsyuk M, Ke BC, Khan T, Khoukaz A, Kiese P, Kliemt R, Koch L, Kolcu OB, Kopf B, Kornicer M, Kuemmel M, Kuessner M, Kuhlmann M, Kupsc A, Kühn W, Lange JS, Lara M, Larin P, Lavezzi L, Leiber S, Leithoff H, Leng C, Li C, Li C, Li DM, Li F, Li FY, Li G, Li HB, Li HJ, Li JC, Li KJ, Li K, Li K, Li L, Li PL, Li PR, Li QY, Li T, Li WD, Li WG, Li XL, Li XN, Li XQ, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Lin DX, Liu B, Liu BJ, Liu CX, Liu D, Liu FH, Liu F, Liu F, Liu HB, Liu HM, Liu H, Liu H, Liu JB, Liu JP, Liu JY, Liu K, Liu KY, Liu K, Liu PL, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Long YF, Lou XC, Lu HJ, Lu JG, Lu Y, Lu YP, Luo CL, Luo MX, Luo XL, Lyu XR, Ma FC, Ma HL, Ma LL, Ma MM, Ma QM, Ma T, Ma XN, Ma XY, Ma YM, Maas FE, Maggiora M, Malik QA, Mao YJ, Mao ZP, Marcello S, Meng ZX, Messchendorp JG, Mezzadri G, Min J, Min TJ, Mitchell RE, Mo XH, Mo YJ, Morales Morales C, Morello G, Muchnoi NY, Muramatsu H, Mustafa A, Nefedov Y, Nerling F, Nikolaev IB, Ning Z, Nisar S, Niu SL, Niu XY, Olsen SL, Ouyang Q, Pacetti S, Pan Y, Papenbrock M, Patteri P, Pelizaeus M, Pellegrino J, Peng HP, Peters K, Pettersson J, Ping JL, Ping RG, Pitka A, Poling R, Prasad V, Qi HR, Qi M, Qian S, Qiao CF, Qin N, Qin XS, Qin ZH, Qiu JF, Rashid KH, Redmer CF, Richter M, Ripka M, Rolo M, Rong G, Rosner C, Ruan XD, Sarantsev A, Savrié M, Schnier C, Schoenning K, Shao M, Shen CP, Shen PX, Shen XY, Sheng HY, Song JJ, Song WM, Song XY, Sosio S, Sowa C, Spataro S, Sun GX, Sun JF, Sun L, Sun SS, Sun XH, Sun YJ, Sun YK, Sun YZ, Sun ZJ, Sun ZT, Tang CJ, Tang GY, Tang X, Tapan I, Tiemens M, Tsednee B, Uman I, Varner GS, Wang B, Wang BL, Wang DY, Wang D, Wang K, Wang LL, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WP, Wang XF, Wang Y, Wang YD, Wang YF, Wang YQ, Wang Z, Wang ZG, Wang ZH, Wang ZY, Wang Z, Weber T, Wei DH, Weidenkaff P, Wen SP, Wiedner U, Wolke M, Wu LH, Wu LJ, Wu Z, Xia L, Xia X, Xia Y, Xiao D, Xiao H, Xiao YJ, Xiao ZJ, Xie YG, Xie YH, Xiong XA, Xiu QL, Xu GF, Xu JJ, Xu L, Xu QJ, Xu QN, Xu XP, Yan L, Yan WB, Yan WC, Yan WC, Yan YH, Yang HJ, Yang HX, Yang L, Yang YH, Yang YX, Yang Y, Ye M, Ye MH, Yin JH, You ZY, Yu BX, Yu CX, Yuan CZ, Yuan Y, Yuncu A, Zafar AA, Zallo A, Zeng Y, Zeng Z, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang J, Zhang JL, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang K, Zhang L, Zhang SQ, Zhang XY, Zhang YH, Zhang YT, Zhang Y, Zhang Y, Zhang Y, Zhang ZH, Zhang ZP, Zhang ZY, Zhao G, Zhao JW, Zhao JY, Zhao JZ, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng WJ, Zheng YH, Zhong B, Zhou L, Zhou X, Zhou XK, Zhou XR, Zhou XY, Zhou YX, Zhu J, Zhu J, Zhu K, Zhu KJ, Zhu S, Zhu SH, Zhu XL, Zhu YC, Zhu YS, Zhu ZA, Zhuang J, Zou BS, and Zou JH
Abstract: The cross section of the process e^{+}e^{-}→π^{+}D^{0}D^{*-} for center-of-mass energies from 4.05 to 4.60 GeV is measured precisely using data samples collected with the BESIII detector operating at the BEPCII storage ring. Two enhancements are clearly visible in the cross section around 4.23 and 4.40 GeV. Using several models to describe the dressed cross section yields stable parameters for the first enhancement, which has a mass of 4228.6±4.1±6.3 MeV/c^{2} and a width of 77.0±6.8±6.3 MeV, where the first uncertainties are statistical and the second ones are systematic. Our resonant mass is consistent with previous observations of the Y(4220) state and the theoretical prediction of a DD[over ¯]_{1}(2420) molecule. This result is the first observation of Y(4220) associated with an open-charm final state. Fits with three resonance functions with additional Y(4260), Y(4320), Y(4360), ψ(4415), or a new resonance do not show significant contributions from either of these resonances. The second enhancement is not from a single known resonance. It could contain contributions from ψ(4415) and other resonances, and a detailed amplitude analysis is required to better understand this enhancement.
Published: 2019
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35. Determination of the Pseudoscalar Decay Constant f_{D_{s}^{+}} via D_{s}^{+}→μ^{+}ν_{μ}.

Author: Ablikim M, Achasov MN, Ahmed S, Albrecht M, Alekseev M, Amoroso A, An FF, An Q, Bai Y, Bakina O, Ferroli RB, Ban Y, Begzsuren K, Bennett DW, Bennett JV, Berger N, Bertani M, Bettoni D, Bianchi F, Boyko I, Briere RA, Cai H, Cai X, Cakir O, Calcaterra A, Cao GF, Cetin SA, Chai J, Chang JF, Chang WL, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen PL, Chen SJ, Chen YB, Cibinetto G, Cossio F, Dai HL, Dai JP, Dbeyssi A, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong C, Dong J, Dong LY, Dong MY, Dou ZL, Du SX, Duan PF, Fan JZ, Fang J, Fang SS, Fang Y, Farinelli R, Fava L, Fegan S, Feldbauer F, Felici G, Feng CQ, Fritsch M, Fu CD, Fu Y, Gao Q, Gao XL, Gao Y, Gao YG, Gao Z, Garillon B, Garzia I, Gilman A, Goetzen K, Gong L, Gong WX, Gradl W, Greco M, Gu LM, Gu MH, Gu YT, Guo AQ, Guo LB, Guo RP, Guo YP, Guskov A, Haddadi Z, Han S, Hao XQ, Harris FA, He KL, Heinsius FH, Held T, Heng YK, Holtmann T, Hou ZL, Hu HM, Hu JF, Hu T, Hu Y, Huang GS, Huang JS, Huang XT, Huang XZ, Huang ZL, Hussain T, Andersson WI, Irshad M, Ji Q, Ji QP, Ji XB, Ji XL, Jiang XS, Jiang XY, Jiao JB, Jiao Z, Jin DP, Jin S, Jin Y, Johansson T, Julin A, Kalantar-Nayestanaki N, Kang XS, Kavatsyuk M, Ke BC, Khan T, Khoukaz A, Kiese P, Kliemt R, Koch L, Kolcu OB, Kopf B, Kornicer M, Kuemmel M, Kuessner M, Kupsc A, Kurth M, Kühn W, Lange JS, Lara M, Larin P, Lavezzi L, Leiber S, Leithoff H, Li C, Li C, Li DM, Li F, Li FY, Li G, Li HB, Li HJ, Li JC, Li JW, Li K, Li L, Li PL, Li PR, Li QY, Li T, Li WD, Li WG, Li XL, Li XN, Li XQ, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Liao LZ, Libby J, Lin CX, Lin DX, Liu B, Liu BJ, Liu CX, Liu D, Liu DY, Liu FH, Liu F, Liu F, Liu HB, Liu HL, Liu HM, Liu H, Liu H, Liu JB, Liu JY, Liu K, Liu KY, Liu K, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Long YF, Lou XC, Lu HJ, Lu JD, Lu JG, Lu Y, Lu YP, Luo CL, Luo MX, Luo XL, Lusso S, Lyu XR, Ma FC, Ma HL, Ma LL, Ma MM, Ma QM, Ma XN, Ma XX, Ma XY, Ma YM, Maas FE, Maggiora M, Malik QA, Mangoni A, Mao YJ, Mao ZP, Marcello S, Meng ZX, Messchendorp JG, Mezzadri G, Min J, Min TJ, Mitchell RE, Mo XH, Mo YJ, Morales CM, Morello G, Muchnoi NY, Muramatsu H, Mustafa A, Nakhoul S, Nefedov Y, Nerling F, Nikolaev IB, Ning Z, Nisar S, Niu SL, Olsen SL, Ouyang Q, Pacetti S, Pan Y, Papenbrock M, Patteri P, Pelizaeus M, Pellegrino J, Peng HP, Peters K, Pettersson J, Ping JL, Ping RG, Pitka A, Poling R, Prasad V, Qi HR, Qi M, Qi TY, Qian S, Qiao CF, Qin N, Qin XS, Qin ZH, Qiu JF, Rashid KH, Redmer CF, Richter M, Ripka M, Rolo M, Rong G, Rosner C, Sarantsev A, Savrié M, Schnier C, Schoenning K, Shan W, Shan XY, Shao M, Shen CP, Shen PX, Shen XY, Sheng HY, Shi X, Song JJ, Song WM, Song XY, Sosio S, Sowa C, Spataro S, Sun GX, Sun JF, Sun L, Sun SS, Sun XH, Sun YJ, Sun YK, Sun YZ, Sun ZJ, Sun ZT, Tan YT, Tang CJ, Tang GY, Tang X, Tapan I, Tiemens M, Tsednee B, Uman I, Varner GS, Wang B, Wang BL, Wang CW, Wang DY, Wang D, Wang K, Wang LL, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WP, Wang XF, Wang Y, Wang YF, Wang YQ, Wang Z, Wang ZG, Wang ZY, Wang Z, Weber T, Wei DH, Weidenkaff P, Wen SP, Wiedner U, Wolke M, Wu LH, Wu LJ, Wu Z, Xia L, Xia X, Xia Y, Xiao D, Xiao YJ, Xiao ZJ, Xie YG, Xie YH, Xiong XA, Xiu QL, Xu GF, Xu JJ, Xu L, Xu QJ, Xu QN, Xu XP, Yan F, Yan L, Yan WB, Yan WC, Yan YH, Yang HJ, Yang HX, Yang L, Yang SL, Yang YH, Yang YX, Yang Y, Ye M, Ye MH, Yin JH, You ZY, Yu BX, Yu CX, Yuan CZ, Yuan Y, Yuncu A, Zafar AA, Zallo A, Zeng Y, Zeng Z, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang J, Zhang JL, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang K, Zhang L, Zhang SF, Zhang TJ, Zhang XY, Zhang Y, Zhang YH, Zhang YT, Zhang Y, Zhang Y, Zhang Y, Zhang ZH, Zhang ZP, Zhang ZY, Zhao G, Zhao JW, Zhao JY, Zhao JZ, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng WJ, Zheng YH, Zhong B, Zhou L, Zhou Q, Zhou X, Zhou XK, Zhou XR, Zhou XY, Zhu AN, Zhu J, Zhu J, Zhu K, Zhu KJ, Zhu S, Zhu SH, Zhu XL, Zhu YC, Zhu YS, Zhu ZA, Zhuang J, Zou BS, and Zou JH
Abstract: Using a 3.19 fb^{-1} data sample collected at an e^{+}e^{-} center-of-mass energy of E_{cm}=4.178 GeV with the BESIII detector, we measure the branching fraction of the leptonic decay D_{s}^{+}→μ^{+}ν_{μ} to be B_{D_{s}^{+}→μ^{+}ν_{μ}}=(5.49±0.16_{stat}±0.15_{syst})×10^{-3}. Combining our branching fraction with the masses of the D_{s}^{+} and μ^{+} and the lifetime of the D_{s}^{+}, we determine f_{D_{s}^{+}}|V_{cs}|=246.2±3.6_{stat}±3.5_{syst} MeV. Using the c→s quark mixing matrix element |V_{cs}| determined from a global standard model fit, we evaluate the D_{s}^{+} decay constant f_{D_{s}^{+}}=252.9±3.7_{stat}±3.6_{syst} MeV. Alternatively, using the value of f_{D_{s}^{+}} calculated by lattice quantum chromodynamics, we find |V_{cs}|=0.985±0.014_{stat}±0.014_{syst}. These values of B_{D_{s}^{+}→μ^{+}ν_{μ}}, f_{D_{s}^{+}}|V_{cs}|, f_{D_{s}^{+}} and |V_{cs}| are each the most precise results to date.
Published: 2019
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36. First Measurement of the Form Factors in D_{s}^{+}→K^{0}e^{+}ν_{e} and D_{s}^{+}→K^{*0}e^{+}ν_{e} Decays.

Author: Ablikim M, Achasov MN, Ahmed S, Albrecht M, Alekseev M, Amoroso A, An FF, An Q, Bai Y, Bakina O, Baldini Ferroli R, Ban Y, Begzsuren K, Bennett DW, Bennett JV, Berger N, Bertani M, Bettoni D, Bianchi F, Boger E, Boyko I, Briere RA, Cai H, Cai X, Calcaterra A, Cao GF, Cetin SA, Chai J, Chang JF, Chang WL, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen PL, Chen SJ, Chen XR, Chen YB, Cheng W, Chu XK, Cibinetto G, Cossio F, Dai HL, Dai JP, Dbeyssi A, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong C, Dong J, Dong LY, Dong MY, Dou ZL, Du SX, Duan PF, Fang J, Fang SS, Fang Y, Farinelli R, Fava L, Fegan S, Feldbauer F, Felici G, Feng CQ, Fioravanti E, Fritsch M, Fu CD, Gao Q, Gao XL, Gao Y, Gao YG, Gao Z, Garillon B, Garzia I, Gilman A, Goetzen K, Gong L, Gong WX, Gradl W, Greco M, Gu LM, Gu MH, Gu YT, Guo AQ, Guo LB, Guo RP, Guo YP, Guskov A, Haddadi Z, Han S, Hao XQ, Harris FA, He KL, He XQ, Heinsius FH, Held T, Heng YK, Hou ZL, Hu HM, Hu JF, Hu T, Hu Y, Huang GS, Huang JS, Huang XT, Huang XZ, Huang ZL, Hussain T, Ikegami Andersson W, Irshad M, Ji Q, Ji QP, Ji XB, Ji XL, Jiang XS, Jiang XY, Jiao JB, Jiao Z, Jin DP, Jin S, Jin Y, Johansson T, Julin A, Kalantar-Nayestanaki N, Kang XS, Kavatsyuk M, Ke BC, Keshk IK, Khan T, Khoukaz A, Kiese P, Kiuchi R, Kliemt R, Koch L, Kolcu OB, Kopf B, Kornicer M, Kuemmel M, Kuessner M, Kupsc A, Kurth M, Kühn W, Lange JS, Larin P, Lavezzi L, Leiber S, Leithoff H, Li C, Li C, Li DM, Li F, Li FY, Li G, Li HB, Li HJ, Li JC, Li JW, Li KJ, Li K, Li K, Li L, Li PL, Li PR, Li QY, Li T, Li WD, Li WG, Li XL, Li XN, Li XQ, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Liao LZ, Libby J, Lin CX, Lin DX, Liu B, Liu BJ, Liu CX, Liu D, Liu DY, Liu FH, Liu F, Liu F, Liu HB, Liu HL, Liu HM, Liu H, Liu H, Liu JB, Liu JY, Liu KY, Liu K, Liu LD, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Long YF, Lou XC, Lu HJ, Lu JG, Lu Y, Lu YP, Luo CL, Luo MX, Luo T, Luo XL, Lusso S, Lyu XR, Ma FC, Ma HL, Ma LL, Ma MM, Ma QM, Ma XN, Ma XY, Ma YM, Maas FE, Maggiora M, Maldaner S, Malik QA, Mangoni A, Mao YJ, Mao ZP, Marcello S, Meng ZX, Messchendorp JG, Mezzadri G, Min J, Min TJ, Mitchell RE, Mo XH, Mo YJ, Morales CM, Muchnoi NY, Muramatsu H, Mustafa A, Nakhoul S, Nefedov Y, Nerling F, Nikolaev IB, Ning Z, Nisar S, Niu SL, Niu XY, Olsen SL, Ouyang Q, Pacetti S, Pan Y, Papenbrock M, Patteri P, Pelizaeus M, Pellegrino J, Peng HP, Peng ZY, Peters K, Pettersson J, Ping JL, Ping RG, Pitka A, Poling R, Prasad V, Qi HR, Qi M, Qi TY, Qian S, Qiao CF, Qin N, Qin XS, Qin ZH, Qiu JF, Qu SQ, Rashid KH, Redmer CF, Richter M, Ripka M, Rivetti A, Rolo M, Rong G, Rosner C, Sarantsev A, Savrié M, Schoenning K, Shan W, Shan XY, Shao M, Shen CP, Shen PX, Shen XY, Sheng HY, Shi X, Song JJ, Song WM, Song XY, Sosio S, Sowa C, Spataro S, Sun GX, Sun JF, Sun L, Sun SS, Sun XH, Sun YJ, Sun YK, Sun YZ, Sun ZJ, Sun ZT, Tan YT, Tang CJ, Tang GY, Tang X, Tiemens M, Tsednee B, Uman I, Wang B, Wang BL, Wang CW, Wang D, Wang DY, Wang D, Wang K, Wang LL, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WP, Wang XF, Wang Y, Wang YF, Wang Z, Wang ZG, Wang ZY, Wang Z, Weber T, Wei DH, Weidenkaff P, Wen SP, Wiedner U, Wolke M, Wu LH, Wu LJ, Wu Z, Xia L, Xia X, Xia Y, Xiao D, Xiao YJ, Xiao ZJ, Xie YG, Xie YH, Xiong XA, Xiu QL, Xu GF, Xu JJ, Xu L, Xu QJ, Xu XP, Yan F, Yan L, Yan WB, Yan WC, Yan YH, Yang HJ, Yang HX, Yang L, Yang RX, Yang SL, Yang YH, Yang YX, Yang Y, Yang ZQ, Ye M, Ye MH, Yin JH, You ZY, Yu BX, Yu CX, Yu JS, Yu JS, Yuan CZ, Yuan Y, Yuncu A, Zafar AA, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang J, Zhang JL, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang K, Zhang L, Zhang SF, Zhang TJ, Zhang XY, Zhang Y, Zhang YH, Zhang YT, Zhang Y, Zhang Y, Zhang Y, Zhang ZH, Zhang ZP, Zhang ZY, Zhao G, Zhao JW, Zhao JY, Zhao JZ, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng WJ, Zheng YH, Zhong B, Zhou L, Zhou Q, Zhou X, Zhou XK, Zhou XR, Zhou XY, Zhou X, Zhou X, Zhu AN, Zhu J, Zhu J, Zhu K, Zhu KJ, Zhu S, Zhu SH, Zhu XL, Zhu YC, Zhu YS, Zhu ZA, Zhuang J, Zou BS, and Zou JH
Abstract: We report on new measurements of Cabibbo-suppressed semileptonic D_{s}^{+} decays using 3.19 fb^{-1} of e^{+}e^{-} annihilation data sample collected at a center-of-mass energy of 4.178 GeV with the BESIII detector at the BEPCII collider. Our results include branching fractions B(D_{s}^{+}→K^{0}e^{+}ν_{e})=[3.25±0.38(stat)±0.16(syst)]×10^{-3} and B(D_{s}^{+}→K^{*0}e^{+}ν_{e})=[2.37±0.26(stat)±0.20(syst)]×10^{-3}, which are much improved relative to previous measurements, and the first measurements of the hadronic form-factor parameters for these decays. For D_{s}^{+}→K^{0}e^{+}ν_{e}, we obtain f_{+}(0)=0.720±0.084(stat)±0.013(syst), and for D_{s}^{+}→K^{*0}e^{+}ν_{e}, we find form-factor ratios r_{V}=V(0)/A_{1}(0)=1.67±0.34(stat)±0.16(syst) and r_{2}=A_{2}(0)/A_{1}(0)=0.77±0.28(stat)±0.07(syst).
Published: 2019
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37. Observation of D^{+}→f_{0}(500)e^{+}ν_{e} and Improved Measurements of D→ρe^{+}ν_{e}.

Author: Ablikim M, Achasov MN, Ahmed S, Albrecht M, Alekseev M, Amoroso A, An FF, An Q, Bai Y, Bakina O, Baldini Ferroli R, Ban Y, Begzsuren K, Bennett DW, Bennett JV, Berger N, Bertani M, Bettoni D, Bianchi F, Boger E, Boyko I, Briere RA, Cai H, Cai X, Calcaterra A, Cao GF, Cetin SA, Chai J, Chang JF, Chang WL, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen PL, Chen SJ, Chen XR, Chen YB, Cheng W, Chu XK, Cibinetto G, Cossio F, Dai HL, Dai JP, Dbeyssi A, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong C, Dong J, Dong LY, Dong MY, Dou ZL, Du SX, Duan PF, Fang J, Fang SS, Fang Y, Farinelli R, Fava L, Fegan S, Feldbauer F, Felici G, Feng CQ, Fioravanti E, Fritsch M, Fu CD, Gao Q, Gao XL, Gao Y, Gao YG, Gao Z, Garillon B, Garzia I, Gilman A, Goetzen K, Gong L, Gong WX, Gradl W, Greco M, Gu LM, Gu MH, Gu YT, Guo AQ, Guo LB, Guo RP, Guo YP, Guskov A, Haddadi Z, Han S, Hao XQ, Harris FA, He KL, He XQ, Heinsius FH, Held T, Heng YK, Hou ZL, Hu HM, Hu JF, Hu T, Hu Y, Huang GS, Huang JS, Huang XT, Huang XZ, Huang ZL, Hussain T, Ikegami Andersson W, Irshad M, Ji Q, Ji QP, Ji XB, Ji XL, Jiang HL, Jiang XS, Jiang XY, Jiao JB, Jiao Z, Jin DP, Jin S, Jin Y, Johansson T, Julin A, Kalantar-Nayestanaki N, Kang XS, Kavatsyuk M, Ke BC, Keshk IK, Khan T, Khoukaz A, Kiese P, Kiuchi R, Kliemt R, Koch L, Kolcu OB, Kopf B, Kornicer M, Kuemmel M, Kuessner M, Kupsc A, Kurth M, Kühn W, Lange JS, Larin P, Lavezzi L, Leiber S, Leithoff H, Li C, Li C, Li DM, Li F, Li FY, Li G, Li HB, Li HJ, Li JC, Li JW, Li KJ, Li K, Li K, Li L, Li PL, Li PR, Li QY, Li T, Li WD, Li WG, Li XL, Li XN, Li XQ, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Liao LZ, Libby J, Lin CX, Lin DX, Liu B, Liu BJ, Liu CX, Liu D, Liu DY, Liu FH, Liu F, Liu F, Liu HB, Liu HL, Liu HM, Liu H, Liu H, Liu JB, Liu JY, Liu KY, Liu K, Liu LD, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Long YF, Lou XC, Lu HJ, Lu JG, Lu Y, Lu YP, Luo CL, Luo MX, Luo T, Luo XL, Lusso S, Lyu XR, Ma FC, Ma HL, Ma LL, Ma MM, Ma QM, Ma XN, Ma XY, Ma YM, Maas FE, Maggiora M, Maldaner S, Malik QA, Mangoni A, Mao YJ, Mao ZP, Marcello S, Meng ZX, Messchendorp JG, Mezzadri G, Min J, Min TJ, Mitchell RE, Mo XH, Mo YJ, Morales Morales C, Muchnoi NY, Muramatsu H, Mustafa A, Nakhoul S, Nefedov Y, Nerling F, Nikolaev IB, Ning Z, Nisar S, Niu SL, Niu XY, Olsen SL, Ouyang Q, Pacetti S, Pan Y, Papenbrock M, Patteri P, Pelizaeus M, Pellegrino J, Peng HP, Peng ZY, Peters K, Pettersson J, Ping JL, Ping RG, Pitka A, Poling R, Prasad V, Qi HR, Qi M, Qi TY, Qian S, Qiao CF, Qin N, Qin XS, Qin ZH, Qiu JF, Qu SQ, Rashid KH, Redmer CF, Richter M, Ripka M, Rivetti A, Rolo M, Rong G, Rosner C, Sarantsev A, Savrié M, Schoenning K, Shan W, Shan XY, Shao M, Shen CP, Shen PX, Shen XY, Sheng HY, Shi X, Song JJ, Song WM, Song XY, Sosio S, Sowa C, Spataro S, Sui FF, Sun GX, Sun JF, Sun L, Sun SS, Sun XH, Sun YJ, Sun YK, Sun YZ, Sun ZJ, Sun ZT, Tan YT, Tang CJ, Tang GY, Tang X, Tiemens M, Tsednee B, Uman I, Wang B, Wang BL, Wang CW, Wang D, Wang DY, Wang D, Wang HH, Wang K, Wang LL, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WP, Wang XF, Wang Y, Wang YF, Wang Z, Wang ZG, Wang ZY, Wang Z, Weber T, Wei DH, Weidenkaff P, Wen SP, Wiedner U, Wolke M, Wu LH, Wu LJ, Wu Z, Xia L, Xia X, Xia Y, Xiao D, Xiao YJ, Xiao ZJ, Xie YG, Xie YH, Xiong XA, Xiu QL, Xu GF, Xu JJ, Xu L, Xu QJ, Xu XP, Yan F, Yan L, Yan WB, Yan WC, Yan YH, Yang HJ, Yang HX, Yang L, Yang RX, Yang SL, Yang YH, Yang YX, Yang Y, Yang ZQ, Ye M, Ye MH, Yin JH, You ZY, Yu BX, Yu CX, Yu JS, Yu JS, Yuan CZ, Yuan Y, Yuncu A, Zafar AA, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang J, Zhang JL, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang K, Zhang L, Zhang SF, Zhang TJ, Zhang XY, Zhang Y, Zhang YH, Zhang YT, Zhang Y, Zhang Y, Zhang Y, Zhang ZH, Zhang ZP, Zhang ZY, Zhao G, Zhao JW, Zhao JY, Zhao JZ, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng WJ, Zheng YH, Zhong B, Zhou L, Zhou Q, Zhou X, Zhou XK, Zhou XR, Zhou XY, Zhou X, Zhou X, Zhu AN, Zhu J, Zhu J, Zhu K, Zhu KJ, Zhu S, Zhu SH, Zhu XL, Zhu YC, Zhu YS, Zhu ZA, Zhuang J, Zou BS, and Zou JH
Abstract: Using a data sample corresponding to an integrated luminosity of 2.93 fb^{-1} recorded by the BESIII detector at a center-of-mass energy of 3.773 GeV, we present an analysis of the decays D^{0}→π^{-}π^{0}e^{+}ν_{e} and D^{+}→π^{-}π^{+}e^{+}ν_{e}. By performing a partial wave analysis, the π^{+}π^{-} S-wave contribution to D^{+}→π^{-}π^{+}e^{+}ν_{e} is observed to be (25.7±1.6±1.1)% with a statistical significance greater than 10σ, besides the dominant P-wave contribution. This is the first observation of the S-wave contribution. We measure the branching fractions B(D^{0}→ρ^{-}e^{+}ν_{e})=(1.445±0.058±0.039)×10^{-3}, B(D^{+}→ρ^{0}e^{+}ν_{e})=(1.860±0.070±0.061)×10^{-3}, and B(D^{+}→f_{0}(500)e^{+}ν_{e},f_{0}(500)→π^{+}π^{-})=(6.30±0.43±0.32)×10^{-4}. An upper limit of B(D^{+}→f_{0}(980)e^{+}ν_{e},f_{0}(980)→π^{+}π^{-})<2.8×10^{-5} is set at the 90% confidence level. We also obtain the hadronic form factor ratios of D→ρe^{+}ν_{e} at q^{2}=0 assuming the single-pole dominance parametrization: r_{V}={[V(0)]/[A_{1}(0)]}=1.695±0.083±0.051, r_{2}={[A_{2}(0)]/[A_{1}(0)]}=0.845±0.056±0.039.
Published: 2019
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38. Observation of the Semileptonic Decay D^{0}→a_{0}(980)^{-}e^{+}ν_{e} and Evidence for D^{+}→a_{0}(980)^{0}e^{+}ν_{e}.

Author: Ablikim M, Achasov MN, Ahmed S, Albrecht M, Alekseev M, Amoroso A, An FF, An Q, Bai Y, Bakina O, Baldini Ferroli R, Ban Y, Begzsuren K, Bennett DW, Bennett JV, Berger N, Bertani M, Bettoni D, Bianchi F, Boger E, Boyko I, Briere RA, Cai H, Cai X, Calcaterra A, Cao GF, Cetin SA, Chai J, Chang JF, Chang WL, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen SJ, Chen XR, Chen YB, Cheng W, Chu XK, Cibinetto G, Cossio F, Dai HL, Dai JP, Dbeyssi A, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong C, Dong J, Dong LY, Dong MY, Dou ZL, Du SX, Fan JZ, Fang J, Fang SS, Fang Y, Farinelli R, Fava L, Feldbauer F, Felici G, Feng CQ, Fritsch M, Fu CD, Gao Q, Gao XL, Gao Y, Gao YG, Gao Z, Garillon B, Garzia I, Gilman A, Goetzen K, Gong L, Gong WX, Gradl W, Greco M, Gu LM, Gu MH, Gu YT, Guo AQ, Guo LB, Guo RP, Guo YP, Guskov A, Haddadi Z, Han S, Hao XQ, Harris FA, He KL, Heinsius FH, Held T, Heng YK, Hou ZL, Hu HM, Hu JF, Hu T, Hu Y, Huang GS, Huang JS, Huang XT, Huang XZ, Huang ZL, Hussain T, Ikegami Andersson W, Imoehl W, Irshad M, Ji Q, Ji QP, Ji XB, Ji XL, Jiang HL, Jiang XS, Jiang XY, Jiao JB, Jiao Z, Jin DP, Jin S, Jin Y, Johansson T, Kalantar-Nayestanaki N, Kang XS, Kavatsyuk M, Ke BC, Keshk IK, Khan T, Khoukaz A, Kiese P, Kiuchi R, Kliemt R, Koch L, Kolcu OB, Kopf B, Kuemmel M, Kuessner M, Kupsc A, Kurth M, Kühn W, Lange JS, Larin P, Lavezzi L, Leiber S, Leithoff H, Li C, Li C, Li DM, Li F, Li FY, Li G, Li HB, Li HJ, Li JC, Li JW, Li KJ, Li K, Li K, Li LK, Li L, Li PL, Li PR, Li QY, Li WD, Li WG, Li XL, Li XN, Li XQ, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Liao LZ, Libby J, Lin CX, Lin DX, Liu B, Liu BJ, Liu CX, Liu D, Liu DY, Liu FH, Liu F, Liu F, Liu HB, Liu HL, Liu HM, Liu H, Liu H, Liu JB, Liu JY, Liu KY, Liu K, Liu LD, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Long YF, Lou XC, Lu HJ, Lu JG, Lu Y, Lu YP, Luo CL, Luo MX, Luo PW, Luo T, Luo XL, Lusso S, Lyu XR, Ma FC, Ma HL, Ma LL, Ma MM, Ma QM, Ma XN, Ma XY, Ma YM, Maas FE, Maggiora M, Maldaner S, Malik QA, Mangoni A, Mao YJ, Mao ZP, Marcello S, Meng ZX, Messchendorp JG, Mezzadri G, Min J, Min TJ, Mitchell RE, Mo XH, Mo YJ, Morales Morales C, Muchnoi NY, Muramatsu H, Mustafa A, Nakhoul S, Nefedov Y, Nerling F, Nikolaev IB, Ning Z, Nisar S, Niu SL, Niu XY, Olsen SL, Ouyang Q, Pacetti S, Pan Y, Papenbrock M, Patteri P, Pelizaeus M, Pellegrino J, Peng HP, Peng ZY, Peters K, Pettersson J, Ping JL, Ping RG, Pitka A, Poling R, Prasad V, Qi M, Qi TY, Qian S, Qiao CF, Qin N, Qin XS, Qin ZH, Qiu JF, Qu SQ, Rashid KH, Redmer CF, Richter M, Ripka M, Rivetti A, Rolo M, Rong G, Rosner C, Rump M, Sarantsev A, Savrié M, Schoenning K, Shan W, Shan XY, Shao M, Shen CP, Shen PX, Shen XY, Sheng HY, Shi X, Song JJ, Song XY, Sosio S, Sowa C, Spataro S, Sui FF, Sun GX, Sun JF, Sun L, Sun SS, Sun XH, Sun YJ, Sun YK, Sun YZ, Sun ZJ, Sun ZT, Tan YT, Tang CJ, Tang GY, Tang X, Tiemens M, Tsednee B, Uman I, Wang B, Wang BL, Wang CW, Wang D, Wang DY, Wang HH, Wang K, Wang LL, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WP, Wang XF, Wang Y, Wang YF, Wang Z, Wang ZG, Wang ZY, Wang Z, Weber T, Wei DH, Weidenkaff P, Wen SP, Wiedner U, Wolke M, Wu LH, Wu LJ, Wu Z, Xia L, Xia Y, Xiao YJ, Xiao ZJ, Xie YG, Xie YH, Xiong XA, Xiu QL, Xu GF, Xu JJ, Xu L, Xu QJ, Xu XP, Yan F, Yan L, Yan WB, Yan WC, Yan YH, Yang HJ, Yang HX, Yang L, Yang RX, Yang SL, Yang YH, Yang YX, Yang Y, Yang ZQ, Ye M, Ye MH, Yin JH, You ZY, Yu BX, Yu CX, Yu JS, Yuan CZ, Yuan Y, Yuncu A, Zafar AA, Zeng Y, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang J, Zhang JL, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang K, Zhang L, Zhang SF, Zhang TJ, Zhang XY, Zhang Y, Zhang YH, Zhang YT, Zhang Y, Zhang Y, Zhang Y, Zhang ZH, Zhang ZP, Zhang ZY, Zhao G, Zhao JW, Zhao JY, Zhao JZ, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng YH, Zhong B, Zhou L, Zhou Q, Zhou X, Zhou XK, Zhou XR, Zhou X, Zhou X, Zhu AN, Zhu J, Zhu J, Zhu K, Zhu KJ, Zhu SH, Zhu XL, Zhu YC, Zhu YS, Zhu ZA, Zhuang J, Zou BS, and Zou JH
Abstract: Using an e^{+}e^{-} collision data sample of 2.93 fb^{-1} collected at a center-of-mass energy of 3.773 GeV by the BESIII detector at BEPCII, we report the observation of D^{0}→a_{0}(980)^{-}e^{+}ν_{e} and evidence for D^{+}→a_{0}(980)^{0}e^{+}ν_{e} with significances of 6.4σ and 2.9σ, respectively. The absolute branching fractions are determined to be B(D^{0}→a_{0}(980)^{-}e^{+}ν_{e})×B(a_{0}(980)^{-}→ηπ^{-})=[1.33_{-0.29}^{+0.33}(stat)±0.09(syst)]×10^{-4} and B(D^{+}→a_{0}(980)^{0}e^{+}ν_{e})×B(a_{0}(980)^{0}→ηπ^{0})=[1.66_{-0.66}^{+0.81}(stat)±0.11(syst)]×10^{-4}. This is the first time the a_{0}(980) meson has been measured in a D^{0} semileptonic decay, which would open one more interesting page in the investigation of the nature of the puzzling a_{0}(980) states.
Published: 2018
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39. Measurement of the Absolute Branching Fraction of the Inclusive Decay Λ_{c}^{+}→Λ+X.

Author: Ablikim M, Achasov MN, Ahmed S, Albrecht M, Alekseev M, Amoroso A, An FF, An Q, Bai JZ, Bai Y, Bakina O, Baldini Ferroli R, Ban Y, Bennett DW, Bennett JV, Berger N, Bertani M, Bettoni D, Bian JM, Bianchi F, Boger E, Boyko I, Briere RA, Cai H, Cai X, Cakir O, Calcaterra A, Cao GF, Cetin SA, Chai J, Chang JF, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen PL, Chen SJ, Chen XR, Chen YB, Chu XK, Cibinetto G, Dai HL, Dai JP, Dbeyssi A, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, De Mori F, Ding Y, Dong C, Dong J, Dong LY, Dong MY, Dou ZL, Du SX, Duan PF, Fang J, Fang SS, Fang X, Fang Y, Farinelli R, Fava L, Fegan S, Feldbauer F, Felici G, Feng CQ, Fioravanti E, Fritsch M, Fu CD, Gao Q, Gao XL, Gao Y, Gao YG, Gao Z, Garillon B, Garzia I, Goetzen K, Gong L, Gong WX, Gradl W, Greco M, Gu MH, Gu S, Gu YT, Guo AQ, Guo LB, Guo RP, Guo YP, Haddadi Z, Han S, Hao XQ, Harris FA, He KL, He XQ, Heinsius FH, Held T, Heng YK, Holtmann T, Hou ZL, Hu C, Hu HM, Hu T, Hu Y, Huang GS, Huang JS, Huang XT, Huang XZ, Huang ZL, Hussain T, Ikegami Andersson W, Ji Q, Ji QP, Ji XB, Ji XL, Jiang XS, Jiang XY, Jiao JB, Jiao Z, Jin DP, Jin S, Jin Y, Johansson T, Julin A, Kalantar-Nayestanaki N, Kang XL, Kang XS, Kavatsyuk M, Ke BC, Khan T, Khoukaz A, Kiese P, Kliemt R, Koch L, Kolcu OB, Kopf B, Kornicer M, Kuemmel M, Kuessner M, Kuhlmann M, Kupsc A, Kühn W, Lange JS, Lara M, Larin P, Lavezzi L, Leiber S, Leithoff H, Leng C, Li C, Li C, Li DM, Li F, Li FY, Li G, Li HB, Li HJ, Li JC, Li KJ, Li K, Li K, Li L, Li PL, Li PR, Li QY, Li T, Li WD, Li WG, Li XL, Li XN, Li XQ, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Lin DX, Liu B, Liu BJ, Liu CX, Liu D, Liu FH, Liu F, Liu F, Liu HB, Liu HM, Liu H, Liu H, Liu JB, Liu JY, Liu K, Liu KY, Liu K, Liu LD, Liu PL, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Long YF, Lou XC, Lu HJ, Lu JG, Lu Y, Lu YP, Luo CL, Luo MX, Luo XL, Lyu XR, Ma FC, Ma HL, Ma LL, Ma MM, Ma QM, Ma T, Ma XN, Ma XY, Ma YM, Maas FE, Maggiora M, Malik QA, Mao YJ, Mao ZP, Marcello S, Meng ZX, Messchendorp JG, Mezzadri G, Min J, Min TJ, Mitchell RE, Mo XH, Mo YJ, Morales Morales C, Morello G, Muchnoi NY, Muramatsu H, Mustafa A, Nefedov Y, Nerling F, Nikolaev IB, Ning Z, Nisar S, Niu SL, Niu XY, Olsen SL, Ouyang Q, Pacetti S, Pan Y, Papenbrock M, Patteri P, Pelizaeus M, Pellegrino J, Peng HP, Peters K, Pettersson J, Ping JL, Ping RG, Pitka A, Poling R, Prasad V, Qi HR, Qi M, Qi TY, Qian S, Qiao CF, Qin N, Qin XS, Qin ZH, Qiu JF, Rashid KH, Redmer CF, Richter M, Ripka M, Rolo M, Rong G, Rosner C, Ruan XD, Sarantsev A, Savrié M, Schnier C, Schoenning K, Shan W, Shao M, Shen CP, Shen PX, Shen XY, Sheng HY, Song JJ, Song WM, Song XY, Sosio S, Sowa C, Spataro S, Sun GX, Sun JF, Sun L, Sun SS, Sun XH, Sun YJ, Sun YK, Sun YZ, Sun ZJ, Sun ZT, Tang CJ, Tang GY, Tang X, Tapan I, Tiemens M, Tsednee B, Uman I, Varner GS, Wang B, Wang BL, Wang D, Wang DY, Wang D, Wang K, Wang LL, Wang LS, Wang M, Wang M, Wang P, Wang PL, Wang WP, Wang XF, Wang Y, Wang YD, Wang YF, Wang YQ, Wang Z, Wang ZG, Wang ZH, Wang ZY, Wang Z, Weber T, Wei DH, Weidenkaff P, Wen SP, Wiedner U, Wolke M, Wu LH, Wu LJ, Wu Z, Xia L, Xia X, Xia Y, Xiao D, Xiao H, Xiao YJ, Xiao ZJ, Xie YG, Xie YH, Xiong XA, Xiu QL, Xu GF, Xu JJ, Xu L, Xu QJ, Xu QN, Xu XP, Yan L, Yan WB, Yan WC, Yan WC, Yan YH, Yang HJ, Yang HX, Yang L, Yang YH, Yang YX, Yang Y, Ye M, Ye MH, Yin JH, You ZY, Yu BX, Yu CX, Yu JS, Yuan CZ, Yuan Y, Yuncu A, Zafar AA, Zallo A, Zeng Y, Zeng Z, Zhang BX, Zhang BY, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang J, Zhang JL, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang K, Zhang L, Zhang SQ, Zhang XY, Zhang YH, Zhang YT, Zhang Y, Zhang Y, Zhang Y, Zhang ZH, Zhang ZP, Zhang ZY, Zhao G, Zhao JW, Zhao JY, Zhao JZ, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng WJ, Zheng YH, Zhong B, Zhou L, Zhou X, Zhou XK, Zhou XR, Zhou XY, Zhou YX, Zhu J, Zhu J, Zhu K, Zhu KJ, Zhu S, Zhu SH, Zhu XL, Zhu YC, Zhu YS, Zhu ZA, Zhuang J, Zou BS, and Zou JH
Abstract: Based on an e^{+}e^{-} collision data sample corresponding to an integrated luminosity of 567 pb^{-1} taken at the center-of-mass energy of sqrt[s]=4.6 GeV with the BESIII detector, we measure the absolute branching fraction of the inclusive decay Λ_{c}^{+}→Λ+X to be B(Λ_{c}^{+}→Λ+X)=(38.2_{-2.2}^{+2.8}±0.9)% using the double-tag method, where X refers to any possible final state particles. In addition, we search for direct CP violation in the charge asymmetry of this inclusive decay for the first time, and obtain A_{CP}≡[B(Λ_{c}^{+}→Λ+X)-B(Λ[over ¯]_{c}^{-}→Λ[over ¯]+X)]/[B(Λ_{c}^{+}→Λ+X)+B(Λ[over ¯]_{c}^{-}→Λ[over ¯]+X)]=(2.1_{-6.6}^{+7.0}±1.6)%, a statistically limited result with no evidence of CP violation.
Published: 2018
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40. Managed competition in the Netherlands-a qualitative study.

Author: Heinemann S, Leiber S, and Gress S
Subjects: Consumer Behavior, Evaluation Studies as Topic, Health Policy legislation & jurisprudence, Humans, Insurance, Health legislation & jurisprudence, Insurance, Health organization & administration, Interviews as Topic, Netherlands, Politics, Risk Adjustment organization & administration, Managed Competition legislation & jurisprudence, Managed Competition organization & administration
Abstract: Background: In 2006, the Health Insurance Act changed Dutch health insurance by implementing managed competition, whereby the health insurance market is strongly regulated by the government. The aim of the study is to investigate key stakeholders' opinions about effects of recent changes in Dutch healthcare policy, focussing upon three important requirements for successful managed competition: risk-adjustment, consumer choice and instruments for managed care., Method: Expert interviews with 12 key stakeholders were performed (October/November 2009), transcribed and analyzed in a four-step qualitative process., Results: The Dutch risk-adjustment scheme is very advanced but incentives for health insurers to select risks remain. The Health Insurance Act has given insurers new incentives to focus upon consumer needs and preferences, whereby large group contracts have replaced individual consumer choice with collective decision-making. Managed care concepts are slow in developing. Patient organizations and insurers report taking part in such efforts, but other stakeholders do not perceive that progress has been made., Conclusions: The pre-requisites for successful managed competition in the Netherlands are not yet entirely in place: risk-adjustment schemes cannot yet counteract all incentives to select risks, consumer preferences are just beginning to influence insurer policies and managed care elements are currently in the development stage., (Copyright © 2012 Elsevier Ireland Ltd. All rights reserved.)
Published: 2013
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41. Health care system change and the cross-border transfer of ideas: influence of the Dutch model on the 2007 German health reform.

Author: Leiber S, Gress S, and Manouguian MS
Subjects: Germany, Humans, Models, Organizational, Netherlands, Organizational Case Studies, Politics, Delivery of Health Care organization & administration, Health Care Reform organization & administration, Information Dissemination, Problem Solving
Abstract: To increase understanding of the cross-border transfer of ideas through a case study of the 2007 German health reform, this article draws on Kingdon's approach of streams and follows two main objectives: first, to understand the extent to which the German health reform was actually influenced by the Dutch model and, second, in theoretical terms, to inform inductively on how ideas from abroad enter government agendas. The results show that the streams of problem recognition and policy proposals have not been predominantly influenced by the cross-border transfer of ideas from the Netherlands to Germany. The Dutch experience was taken into consideration only after a policy window opened by a shift in politics in the third, the political, stream: the change of government in 2005. In many respects, the way Germany learned from the Netherlands in this case sharply contrasts with an image of solving policy problems by either lesson drawing or transnational deliberation. Instead, the process was dominated by problem solving in the sphere of politics, that is, finding a way to prove the grand coalition was capable of acting.
Published: 2010
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