Collaboration Meeting in Summer 2025, Jul. 7 - 11, 2025, North China Electric Power University (Beijing, China)

6 Jul 2025, 14:00 → 11 Jul 2025, 19:00 Asia/Shanghai

North China Electric Power University campus

Welcome to North China Electric Power University!

The BESIII Collaboration Meeting in Summer of 2025 will be held at North China Electric Power University (Beijing Campus) from July 7th to July 11th, 2025. Online registeration is open now! On-site registerationwill be open on the campus from July 6th to July 11th, 2025. 

For offline participants, the registration fee for students is 1500 RMB, and the registration fee for faculty members and post-doctors is 1800 RMB, covering meeting material, coffee breaks, lunches, dinners, banquet and so on. The conference fee can be paid at the registration desk upon arrival. Hotel expenses are not included in the registration fee and will be paid separately. 

ZOOM Information

For online participants, Please JOIN ZOOM MEETING with the Meeting ID and PIN code in the attachment. In case of any connection problem, please contact Ms. Shuopin Wen (wensp@ihep.ac.cn).

1) Plenary Sessions (July.7 - 11)

Topic: BESIII Collaboration Meeting in Summer 2024
Meeting ID: 921 3709 1520
PIN code: 250707
URL:https://zoom.us/j/92137091520?pwd=T2TJuzASWsnQUtJwUXlVnmIRYZfyCR.1

 

First Circular.pdf

Sunday, 6 July

14:00 → 21:00 Registration

18:00 → 20:00 Dinner

Monday, 7 July

08:30 → 08:40 Opening speech

08:40 → 10:40 BEPCII and BESIII (Wolfgang Gradl, Haibo Li, Guangshun Huang)

08:40 Hunting for glueballs in χc decays (Invited)

Speaker: Ulrich Wiedner (Bochum University)

09:20 Status of BECPII

Speaker: Chenghui 于程辉 (Institute of High Energy Physics)

09:40 Status of BESIII

Speaker: Mingyi Dong (IHEP)

10:00 Status of BESIII Software

Speaker: Sheng-Sen Sun (Institute of High Energy Physics)

10:20 Status of CGEM

Speaker: Gianluigi Cibinetto (INFN Sezione di Ferrara)

10:40 → 11:10 Coffee break + photons

11:10 → 12:30 Membership applications (Chair:Xingtao Huang)

11:20 Lebedev Physical Institute (LPI), RAS, Moscow (Online)

11:30 Universidad de La Serena (ULS), Chile (Online)

11:40 Institute of Business Administration (IBA), Pakistan

11:50 Southwest University of Science and Technology (SWUST), China

12:00 Chengdu University of Technology (CDUT), China

12:10 Shaanxi Normal University (SNNU), China

12:20 Shandong Management University (SDMU), China

12:30 → 14:00 Lunch

14:00 → 16:20 Software and computing (convener: Shengsen Sun and YongZhao Sun)

14:00 Status of BESIII analysis

Speaker: Zhiqing Liu (Shandong University)

14:20 Status of cZDD

Speaker: Frederic Stieler (Johannes Gutenberg University of Mainz)

14:40 Status of BESIII Computing

Speaker: JIngyan Shi (IHEP)

15:00 Status of CGEM Simulation and Reconstruction

Speaker: Liang-Liang Wang (Institute of High Energy Physics (Beijing))

15:20 CGEM Calibration

Speaker: 昊 袁 (高能所)

15:40 MDC Data Analysis and Performance

Speaker: 亚轩 李 (Nankai University)

16:20 → 16:40 Coffee break

16:40 → 18:20 Charmonium plenary I (Conveners: Kai Zhu & Yuping Guo & Nils Huesken)

16:40 Measurement of Born Cross Section for $e^+e^-\to K^0_S \bar{\Xi}^0 X(\Lambda/\Sigma^0)+$ c.c. at Center-of-Mass Energy Between 3.5 and 4.9 GeV

Speaker: Bo 博 Wang 王 (Sun Yat-Sen University)

17:05 Search for $\psi(3770) \to \omega \eta'$ decay

Speaker: Tuo 拓 Ding 丁 (Henan Normal University)

17:30 Study of the radiative decay $J\psi \to l^+ l^- \gamma$

Speaker: Yilong Wang (Henan Normal University)

17:55 Observation of Parity Violation in $\psi'\to\eta J/\psi$ Decay

Speaker: Zhi Wang (Nankai University)

18:20 → 19:00 Dinner

19:00 → 20:00 Membership committee (Xiaorui Lyu )

20:00 → 23:00 EB meeting (Hai-Bo Li)

Tuesday, 8 July

08:30 → 10:10 New Physics plenary I (Conveners: Minggang Zhao & Zhengyun You & Yu Zhang)

08:30 Charged Lepton Flavor Violation in chi_cJ to tau mu, tau e

Speaker: Johnathan Gutierrez (Indiana University)

08:55 Search for invisible particle via ψ(2S)→eμ + invisible

Speaker: Pan Huang (Nanjing University)

09:20 Search for Charmonium Weak Decay ψ(3686) → Dsenν

Speaker: XuZe Li (Sun Yat-sen University)

09:45 Search for the massive dark photon via J∕ψ→η'A'

Speaker: Minghua Liao (SUN YAT-SEN UNIVERSITY)

10:10 → 10:30 Coffee break

10:30 → 12:10 Light hadron plenary I (Conveners: Shuangshi Fang & Isabella Garzia & Wenbin Qian)

10:30 Pragmatic approach towards analyzing four body final states? (Invited)

Speaker: Meike Küßner (Ruhr University Bochum)

11:00 Observation of X(2120) in $J/\psi\rightarrow 4(\pi^+\pi^-)$

Speaker: Wanling CHANG (高能所)

11:25 Study of $\psi(3686)\rightarrow K_S \Lambda \bar{\Xi}$

Speaker: Hao Liu (Lanzhou University)

11:50 Observation of antihyperon-nucleon (Lambdabar-proton) annihilate into light mesons

Speaker: Jielei Zhang (Henan University)

12:10 → 14:00 Lunch

14:00 → 15:40 Charm plenary I (Conveners: Liaoyuan Dong & Baician Ke & Alex Gilman)

15:40 → 16:00 Coffee break

16:00 → 18:00 QCD plenary I (Conveners: Xiaorong Zhou & Jianyong Zhang & Aliberti Riccardo)

16:00 Measurement of R from 2.00 to 4.95 GeV

Speaker: jiyuan tian (University of Science and Technology of China)

16:25 The cross section measurement of $e^{+}e^{-}\rightarrow p\bar{p}$ near threshold at $\sqrt{s}$ from 1.840 to 1.970 GeV

Speaker: Hailin Song (中国科学技术大学东校区近代物理系)

16:50 Energy-energy correlation (EEC) study at BESIII

Speaker: Ling Ge (Southeast University)

17:15 Inclusive pi0/Ks0 production at sqrt(s) = 4.843, 4.918 and 4.951 GeV

Speaker: Linqin Huang (Institute of Modern Physics)

18:00 → 19:00 Dinner

20:00 → 23:00 IB meeting (Xingtao Huang)

Wednesday, 9 July

08:10 → 12:35 Parallel Charmonium (Conveners: Kai Zhu & Yuping Guo & Nils Huesken)

08:30 "Study of $e^+e^-\to K_S^0 K^+ \pi^- + c.c.$ around $\psi(3686)$

Speaker: Chen Xie (Nanjing University)

08:50 Search for $\psi(3770) \to K_S^0 K^+ \pi^-$ decay

Speaker: Mengyan 梦妍 Ren 任 (HNNU 河南师范大学)

09:10 Preliminary Measurement of the Branching Ratio of $e^+ e^- \to J/\psi \pi^0 \to \mu^+ \mu^- \gamma \gamma$ near $\psi(2S)$

Speaker: Qi 琦 Liu 刘 (WHU 武汉大学)

09:30 Cross sections of $e^+e^− \to \omega \eta$ around $\psi(3686)$

Speaker: Yiqi 一琦 Du 杜 (Wuhan University)

09:50 coffee or tea

10:10 Measurement of Born cross section for $e^+e^- \to n K_s \bar{\Lambda}/\bar{\Sigma}^0 +$ c.c. between 3.5 and 4.9 GeV

Speaker: Kailu Li (Lanzhou University)

10:30 Measurement of Born cross section for $e^+e^- \to p K_S \bar{\Sigma}^-$ +c.c. between 3.5 and 4.9 GeV

Speaker: Yu 宇 Guan 管 (Lanzhou University)

10:50 Measurement of Born cross section for $e^+e^- \to n \bar{n}$ between 3.5 and 5.0 GeV

Speaker: Minghang 铭航 Cai 蔡 (LZU 兰州大学)

11:10 Measurement of Born cross section for $e^+e^-\to \Lambda \bar{\Lambda}$ from 3.5 to 4.9GeV

Speaker: Yixiao 一晓 Zhao 赵 (LZU 兰州大学)

08:30 → 12:00 Parallel Charm (Conveners: Liaoyuan Dong & Baician Ke & Alex Gilman)

08:30 → 12:00 Parallel Light hadron (Conveners: Shuangshi Fang &Nils Huesken & Isabella Garzia)

08:30 PWA of $e^+e^- \rightarrow \pi^0\Lambda\bar{\Lambda}$ process at 3.773 GeV

Speaker: Tiantian Lei (University of Science and Technology of China)

08:50 Search of $\Omega^- \rightarrow \Xi^- \gamma$

Speaker: 铭昊 宋 (兰州大学(LZU))

09:10 Cross section measurement of $e^+e^- \rightarrow \omega \pi^0$ near $J/\psi$ peak

Speaker: 文浩 崖 (武汉大学)

09:30 First study of $\bar{\Lambda} p \to K^+ \pi^+ \pi^- N \pi^0$ (N=1,2,3)

Speaker: Hong-Fei Shen (IHEP)

09:50 Break

10:20 Study of $J/\psi \to \pi^+ \pi^- n \bar{n}$ with $\psi(2S)\to \pi^+ \pi^- J/\psi$ process

Speaker: 宗豪 李 (兰州大学)

10:40 Study of $\Xi(1530) \to \gamma \Xi$

Speaker: 智鹏 谢 (中国科学技术大学)

11:00 Measurement of the BF of $J/\psi\to\phi\eta^\prime$ with $\eta^\prime\to\pi\pi\eta$

Speaker: Yanwen LUO (Wuhan Univ.)

11:20 Measurement of the BF of $J/\psi\to\phi\eta^\prime$ with $\eta^\prime\to\pi\pi\eta$

Speaker: 健鑫 王 (武汉大学)

08:30 → 12:00 Parallel New Physics (Conveners: Minggang Zhao & Zhengyun You & Yu Zhang)

08:30 Search for massless BSM Particle in Xi0->Sigma0+invisible decay

Speaker: Tianyou Li (Nankai University)

08:50 Search for CLFV process ψ(2S) → eτ

Speaker: Xiaokang Li (Peking University)

09:10 Search for lepton flavor violation decay from η/η'→μ+μ+e-e−

Speaker: Yunhe Yang (Nankai University)

09:30 Search for Xi- EDM in J/psi Decays

Speaker: Quanzheng Zhang (UCAS)

09:50 Search for baryon and lepton number violating in $D$ decays

Speaker: Liangchen Liu (Nankai University)

10:10 Coffee break

10:30 Search for the rare decay $D_s^+\to K^+\nu\bar{\nu}$

Speaker: Jiazhen Yan (Wuhan University)

10:50 Search for charmonium semi-leptonic decay ψ(3686) → Denν

Speaker: Kaixin Fan (Sun Yat-Sen University)

11:10 Search for charmonium weak decay J/ψ→D0K0

Speaker: Yiqing Huang (Sun Yat-Sen University)

11:30 Search for the light neutralino Χ with D+ to p Χ

Speaker: Youmin Kan (SUN YAT-SEN UNIVERSITY)

08:30 → 12:00 Parallel R-QCD(Conveners: Xiaorong Zhou & Jianyong Zhang & Riccardo Aliberti)

08:30 Cross Section measurements of process e^+e^−→ phipi0

Speaker: Zeyuan Zhou (郑州大学)

08:50 Study of \( \tau^+ \to \pi^+ \pi^0 \bar{\nu}_\tau \) and \( \tau^+ \to K^+ \pi^0 \bar{\nu}_\tau \)

Speaker: Shanshan Li (湖南大学)

09:10 Measurement of the e+e-->ppbar cross section at BESIII using the ISR technique

Speaker: Souvik Maity (Institute of Modern Physics)

09:30 Cross section measurement of e+e- --> K_S0 K- pi+

Speaker: Weipeng Guo (Zhengzhou University)

09:50 Cross sections of $e^+e^-\to\omega\eta$ near $J/\psi$ resonance

Speaker: Zhikun Xi

10:10 Break

10:30 Cross sections of $e^+e^-\to\omega\pi^0$ near $J/\psi$ resonance

Speaker: Wenhao Ya (武汉大学)

10:50 Study of $e^{+}e^{-}\rightarrow\phi+X(s\bar{s})$ at BESIII

Speaker: Gengyuan Zhang (中国科学院高能物理研究所)

11:10 Control sample for $e^{+}e^{−}\rightarrow n\bar{n}$ study

Speaker: Yu Zhang (Sun Yat-sen University)

11:30 Measurement of the branching fraction on $\tau^{-}\rightarrow a_{1}^{-}\nu_{\tau}\rightarrow \rho_{0}\pi^{-}\nu_{\tau}\to\pi^{+}\pi^{-}\pi^{-}\nu_{\tau}$

Speaker: Kexin Zhang

10:10 → 10:30 Coffee break

12:00 → 14:00 Lunch

14:00 → 17:40 Parallel Charm (Conveners: Liaoyuan Dong & Baician Ke & Alex Gilman)

14:00 → 17:40 Parallel Charmonium (Conveners: Kai Zhu & Yuping Guo & Nils Huesken)

14:00 Cross section measurement of $e^+e^- \to X(3872)+X$ from 4.226 to 4.599 GeV

Speaker: Mingze 明泽 Li 李 (Jilin University)

14:20 $e^+e^- \to X(3823)+X$ at BESIII

Speaker: Bianmin 变敏 Zheng 郑 (Nanjing Normal University)

14:40 $\psi(3686) \to \pi^+ \pi^- \eta_c$

Speaker: Xiaoyi 晓艺 Yang 杨 (JNU 济南大学)

15:00 Measurements of the branching fractions of $\eta_c(1S)$ and $h_c(1P)$ decay to $\Sigma^0 \bar{\Sigma}^0$ via $\psi(2S)$ transitions

Speaker: Yingjie 英杰 Li 李 (IHEP 中国科学院高能物理研究所实验物理中心)

15:20 coffee or tea

15:40 Study of the reactions of $\Lambda p \to \Lambda p$ and $\bar{\Lambda} p \to \bar{\Lambda}p$ (using $J/\psi \to p K \Lambda$)

Speaker: Xintong 欣桐 Liu 刘 (HNU 河南大学)

16:00 Search for Parity Violation in $J/\psi \to \phi \eta$

Speaker: Jiashun Luo (IHEP)

16:20 Measurement of the $X(3823)\to K^*K^*$ branching fraction

Speaker: Ming 铭 Zhuge 诸葛 (SDU)

14:00 → 17:40 Parallel Light hadron (Conveners: Shuangshi Fang &Nils Huesken & Isabella Garzia)

14:00 Measurement of $\Sigma(1385)\to \Lambda \gamma$ branching fraction at BESIII

Speaker: 婧宜 韩 (中国科学技术大学)

14:20 Update of the analyses eta_c to eta_prime (pi- pi+, pi0 pi0, 2(pi+ pi-), K+ K-, K_S K_S, eta eta)

Speaker: Anja Brueggemann (University of Muenster)

14:40 Study of eta(1405) and eta(1475) in Jpsi --> phi pi+ pi- eta and Jpsi --> omega pi+ pi- eta

Speakers: 文静 谭 (广西师范大学) , 文静 谭 (广西师范大学)

15:00 PWA of $\chi_{c1}\to \pi^0 \pi^0 \eta$

Speaker: 皓月 许 (济南大学)

15:20 Break

15:50 PWA of $J/\psi\rightarrow\gamma p\bar{p}$

Speaker: 鹏 张 (高能所)

16:10 PWA of $\chi_{c1}\to \pi^+\pi^-\eta$

Speakers: Fang Liu (Jpsi_group) , Fang Liu (IHEP)

16:30 Improved measurement of BF of $J/\psi\to\phi\pi^0$

Speaker: 啸宇 李 (高能所)

14:00 → 17:40 Parallel New Physics (Conveners: Minggang Zhao & Zhengyun You & Yu Zhang)

14:00 Search for hc->e+ e-

Speaker: Yunxiang Wang (University of Chinese Academy of Sciences)

14:20 Search for semi-leptonic hyperon decay \Omega^{-}\to\Lambda e^{-} \bar{\nu_{e}}

Speaker: Siyuan Fan (Lanzhou University)

14:40 Search for Xi^0 EDM in J/\psi decay

Speaker: kaiji xie (IHEP)

14:00 → 17:40 Parallel R-QCD(Conveners: Xiaorong Zhou & Jianyong Zhang & Riccardo Aliberti)

14:00 Search for dark photons in radiative di-muon production

Speaker: Maurice Anderson (Johannes-Gutenberg University Mainz)

14:20 Energy calibration for the data collected below 2 GeV

Speaker: Mi Wang (USTC)

14:40 Cross Section Measurement of $e^{+}e^{-}\rightarrow K^{0}_{S}K^{0}_{L}$ via ISR Method

Speaker: Huiliang Xia (中国科学技术大学)

14:00 → 17:40 Parallel Software (Conveners: Shengsen Sun)

15:40 → 16:00 Coffee break

18:00 → 20:00 Banquet

Thursday, 10 July

08:30 → 18:00 Free discussion

18:00 → 19:00 Dinner

Friday, 11 July

08:30 → 10:10 Light hadrons plenary II (Conveners: Shuangshi Fang & Isabella Garzia & Wenbin Qian)

08:30 Observation of X(1750) in $J/\psi\rightarrow\phi 4\pi^0$

Speaker: 稳倩 郑 (中国地质大学（武汉）)

08:55 Observation of X(1840) in $J/\psi\rightarrow\omega 3(\pi^+\pi^-)$

Speaker: Tong CHEN

09:20 PWA of $e^+e^- \rightarrow p\bar{p} \eta$ vicinity 3.770 GeV

Speaker: Ziyang Zhang (NCEPU)

09:45 PWA of $J/\psi\rightarrow K^+K^-\eta^\prime$

Speaker: Yangyang Chang (Liaoning University)

10:10 → 10:30 Coffee break

10:30 → 12:10 Joint plenary I (Charm+QCD) (Conveners: Liaoyuan Dong & Baician Ke & Alex Gilman, Xiaorong Zhou & Jianyong Zhang & Aliberti Riccardo, Minggang Zhao)

10:30 Cross section measurement of e+ e- to Lambda_c + anything

Speaker: Jiaxiu Teng (USTC)

10:55 Lambda production and polarization study at sqrt(s) = 4.843, 4.918 and 4.951 GeV

Speaker: Shuyu Li (郑州大学)

12:10 → 14:00 Lunch

14:00 → 15:40 Joint plenary II (Charmonium+new physics) (Conveners: Kai Zhu & Yuping Guo & Nils, Minggang Zhao & Zhengyun You & Yu Zhang)

14:00 Search for η' → π0(η)e+e- and η → π0 e+e-

Speaker: Guangbao Sun (Wuhan University)

14:25 Measurement of branching fraction of $\chi _{cJ} \to \Xi^{-}\bar{\Xi}^{+}\pi^{+}\pi^{-}$

Speaker: Aimin 爱民 Yang 杨 (Zhengzhou University)

14:50 Beam polarization measurement via $e^+e^-\to\mu^+\mu^-$ at 3.686 GeV

Speaker: Jiashun Luo (IHEP)

15:40 → 16:00 Coffee break

16:00 → 17:40 Closing (Conveners: Haibo Li & Wolfgang Gradl & Guangshun Huang)

16:00 Report from speakers bureau

Speakers: Beijiang LIU (IHEP) , Fabrizio Bianchi (University of Turin)

16:20 Report from publication committee

Speaker: Ryan Mitchell (Indiana University)

16:40 Report from IB

Speaker: Xingtao Huang (Shandong University)

17:00 Report from Spokespersons

Speakers: Guangshun Huang (USTC) , Haibo Li (IHEP) , Wolfgang Gradl (Institute of Nuclear Physics, Johannes-Gutenberg University Mainz)