X. D. Yu

Peking University

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M. Lellmann

Johannes Gutenberg University Mainz

P. Egorov

Joint Institute for Nuclear Research

L. Y. Dong

Institute of High Energy Physics

J. G. Messchendorp

University of Groningen

J. F. Shangguan

Soochow University

F. E. Maas

Helmholtz Institute Mainz

R. Aliberti

Johannes Gutenberg University Mainz

Z. Jiao

University of Science and Technology of China

M. Y. Dong

Institute of High Energy Physics

J. Muskalla

Johannes Gutenberg University Mainz

Cooperative Institutions

Institute of High Energy Physics

2,546

University of Chinese Academy of Sciences

1,357

Chinese Academy of Sciences

872

Henan University

814

Inner Mongolia University

781

COMSATS University Islamabad

724

University of Science and Technology of China

674

China Center of Advanced Science and Technology

608

Central China Normal University

438

Ruhr University Bochum

405

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Anti-fake label and security identification system based on multiple luminescent quantum dots

Xuelian Bai Jiyan Du Jie Zeng X. D. Yu

Recent advancements in nanomaterials have produced a new class of fluorescent labels based on the semiconductor quantum dots. The emission wavelength of quantum dots can be continuously tuned by changing the particle size or component, and a single light source can be used for simultaneous excitation of all dots with different band gaps. High-quality dots are also highly stable against photobleaching and have narrow, symmetric emission spectra. These novel optical properties render quantum dots ideal fluorophores for ultrasensitive, multicolor, and multiplexing applications in anti-fake label and security identification. In the past research, we have successfully synthesized Cd _x Zn _1-x Se quantum dots with their fluorescent emission from 500 to 600 nm (from green, yellow, orange to red). Here, we achieved the multicolor optical coding for engineering assays through coating different-colored quantum dots onto the anti-fake label, which further resulting in a new security identification system. The predominant fluorescent properties of Cd _x Zn _1-x Se quantum dots made the system nearly perfect, such as ultrasensitive, quite informative as well as safely confidential. Furthermore, we designed the flow chat of hardware with prototype read-out system. The multiple luminescent Cd _x Zn _1-x Se quantum dots based anti-fake system can be applied to supermarket labeling, military security and object identification.

Multiplex

10.1109/iwasid.2008.4688336

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Inter-query data aggregation in wireless sensor networks

Xiaowei Zhang X. D. Yu Xiangqun Chen

In this paper, we classify data aggregation into two kinds: single-query data aggregation, inter-query data aggregation. As we know, single-query data aggregation is a hot issue in sensor networks, e.g. TAG (S. Madden, et al., 2002) makes big contribution to single-query data aggregation. But less attention are paid to inter-query data aggregation. We analyze problems existing in inter-query data aggregation as it is more complicated than single-query data aggregation, and then we resolve these problems and evaluate efficiency of our work by computing consumed energy.

Data aggregator

Online aggregation

10.1109/wcnm.2005.1544202

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Study of e+e−→π+π−π0 at

Physical review. D/Physical review. D. (2024)

M. Ablikim M. N. Achasov P. Adlarson X. C. Ai R. Aliberti

With the data samples taken at center-of-mass energies from 2.00 to 3.08 GeV with the BESIII detector at the BEPCII collider, a partial wave analysis on the e+e−→π+π−π0 process is performed. The Born cross sections for e+e−→π+π−π0 and its intermediate processes e+e−→ρπ and ρ(1450)π are measured as functions of s. The results for e+e−→π+π−π0 are consistent with previous results measured with the initial state radiation method within one standard deviation, and improve the uncertainty by a factor of ten. By fitting the line shapes of the Born cross sections for the e+e−→ρπ and e+e−→ρ(1450)π, a structure with mass M=2119±11±15 MeV/c2 and width Γ=69±30±5 MeV is observed with a significance of 5.9σ, where the first uncertainties are statistical and the second ones are systematic. This structure can be interpreted as an excited ω state. Published by the American Physical Society 2024

10.1103/physrevd.110.032005

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Research on high resolution micro-scan technology in infrared imaging system

Zhiqiang Zhang Ping Wang X. D. Yu Yumei Zhou Ting Li

At present, the resolution of cooled type infrared thermal imaging systems is generally low. In order to realize longdistance target detection, it is necessary to design a high-performance and high resolution infrared thermal imaging system. The methods of improving resolution both domestic and overseas are discussed and compared. A method of fast imaging in four quadrants by using a micro-scanner to drive an optical lens is proposed. The method has high control precision, simple process and easy realization. Four low-resolution images are spliced into one high-resolution infrared thermograph with high imaging quality. The infrared thermal imaging system designed by this method can search, locate and track targets tens of kilometers away with outstanding indexes and excellent performance.

Thermography

Imaging technology

10.1117/12.2547809

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Determination of Spin-Parity of the $X(2370)$ in $J/ψ\rightarrowγK^{0}_{S}K^{0}_{S}η^{\prime}$

arXiv (Cornell University) (2023)

BESIII Collaboration M. Ablikim M. N. Achasov P. Adlarson X. Ai

Based on $(10087\pm44)\times10^{6}$ $J/\psi$ events collected with the BESIII detector, a partial wave analysis of the decay $J/\psi\rightarrow\gamma K^{0}_{S}K^{0}_{S}\eta^{\prime}$ is performed. The mass and width of the $X(2370)$ are measured to be $2395 \pm 11 ({\rm stat})^{+26}_{-94}({\rm syst})\ \mathrm{MeV}/c^{2}$ and $188^{+18}_{-17}({\rm stat})^{+124}_{-33}({\rm syst})~\mathrm{MeV}$, respectively. The corresponding product branching fraction is $\mathcal{B}[J/\psi\rightarrow\gamma X(2370)] \times \mathcal{B}[X(2370) \rightarrow f_{0}(980)\eta^{\prime}] \times \mathcal{B}[f_{0}(980) \rightarrow K^{0}_{S}K^{0}_{S}] = \left( 1.31 \pm 0.22 ({\rm stat})^{+2.85}_{-0.84}({\rm syst}) \right) \times 10^{-5}$. The statistical significance of the $X(2370)$ is greater than $11.7\sigma$ and the spin-parity is determined to be $0^{-+}$ for the first time. The measured mass and spin-parity of the $X(2370)$ are consistent with the predictions of the lightest pseudoscalar glueball.

Parity (physics)

10.48550/arxiv.2312.05324

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A super large and robust free-standing organic cage membrane used for ultrasensitive solvent actuator

Sensors and Actuators B Chemical (2024)

Yajun Zhang LiFei Ji QingZhuo Yang BinYu Xiao Yajuan Li

Cage

10.1016/j.snb.2024.136688

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A comparison of therapies using Eyetronix Flicker Glass And standard adhesive patches in children with anisometropic amblyopia: A randomized controlled trial

medRxiv (Cold Spring Harbor Laboratory) (2020)

Seung Hyun Min Shijia Chen Jinling Xu Bingzhen Chen Hui Chen

A bstract Objective Eyetronix Flicker Glass (EFG) has been introduced an alternative treatment for amblyopia. It is based on the premise that amblyopia can better be treated by manipulating the visual input that enter both the normal and amblyopic eye. In contrast, only the normal eye gets deprived during the traditional patching therapy. We conducted a randomized clinical trial to compare the efficacy of the therapies using the Eyetronix Flicker Glass and standard adhesive patches in children with anisometropic amblyopia. Design A prospective, randomized controlled trial Participants: 31 children aged 4-13 years with anisometropic amblyopia Intervention: The patients were assigned two treatment groups and were treated for 12 weeks. Those in the first group were treated with the Eyetronix Flicker Glass for one hour per day, whereas those in the latter group were treated with the standard patches for two hours per day. Main outcome measures Best-corrected visual acuity and contrast sensitivity of the amblyopic eye, stereopsis and fusion range were measured at both before the treatment and 3, 6 and 12 weeks after the first day of the treatment. Results Visual acuity of the amblyopic eye significantly improved in both groups after the treatment (p < 0.05), albeit more so in patients who had undergone the standard patching therapy. A significant improvement in contrast sensitivity of the amblyopic eye at 3, 6 and 12 cpd was also observed in patients who had undergone the standard patching therapy (p < 0.05) but not the EFG therapy (p > 0.05). However, no improvement in stereopsis and fusion range was found in patients from both treatment groups. Conclusion Both therapies improved monocular visual functions, such as visual acuity and contrast sensitivity. However, the improvement was significantly larger after the standard patching therapy than that of the EFG therapy. However, both therapies did not improve fusion range and stereopsis. Our results indicate that although the EFG therapy deprives visual input in a binocular fashion, it does not improve binocular functions in the amblyopic population.

Flicker fusion threshold

10.1101/2020.07.20.20157552

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Search for charged lepton flavor violation in $J/\psi$ decays at BESIII

arXiv (Cornell University) (2024)

X. D. Yu

In the Standard Model, charged lepton flavor violation (CLFV) is heavily suppressed by tiny neutrino mass, while many theoretical models can enhance CLFV effects up to detectable level. The observation of any CLFV process would be a clear signal of new physics beyond SM. BESIII experiment collected 10 billion $J/\psi$ data and searched for CLFV processes $J/\psi\to e\tau$ and $e\mu$. The upper limits at the 90% confidence level are determined to be $\mathcal{B}(J/\psi\to e\tau)<7.5\times 10^{-8}$ and $\mathcal{B}(J/\psi\to e\mu)<4.5\times 10^{-9}$, respectively. Improving the previously experimental limits by two orders of magnitudes, the results are the most stringent CLFV searches in heavy quarkonium system.

10.48550/arxiv.2405.00272

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Observation of D+→f0(500)μ+

Physical review. D/Physical review. D. (2024)

M. Ablikim M. N. Achasov P. Adlarson O. Afedulidis X. C. Ai

Using 2.93 fb−1 of e+e− collision data collected with the BESIII detector at the center-of-mass energy of 3.773 GeV, we investigate the semileptonic decays D+→π+π−ℓ+νℓ (ℓ=e and μ). The D+→f0(500)μ+νμ decay is observed for the first time. By analyzing simultaneously the differential decay rates of D+→f0(500)μ+νμ and D+→f0(500)e+νe in different ℓ+νℓ four-momentum transfer intervals, the product of the relevant hadronic form factor f+f0(0) and the magnitude of the c→d Cabibbo-Kobayashi-Maskawa matrix element |Vcd| is determined to be f+f0(0)|Vcd|=0.143±0.014stat±0.011syst for the first time. With the input of |Vcd| from the global fit in the standard model, we determine f+f0(0)=0.63±0.06stat±0.05syst. The absolute branching fractions of D+→f0(500)(π+π−)μ+νμ and D+→ρ(π+π−)0μ+νμ are determined as (0.72±0.13stat±0.08syst)×10−3 and (1.64±0.13stat±0.10syst)×10−3. Combining these results with those of previous BESIII measurements on their semielectronic counterparts from the same data sample, we test lepton flavor universality by measuring the branching fraction ratios BD+→ρ0μ+νμ/BD+→ρ0e+νe=0.88±0.10 and BD+→f0(500)μ+νμ/BD+→f0(500)e+νe=1.14±0.26, which are compatible with the standard model expectation. Published by the American Physical Society 2024

10.1103/physrevd.110.092008

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Development and Validation of an HPLC Method for the Simultaneous Determination of Eight Related Substances in Fosaprepitant Dimeglumine API

Chromatographia (2025)

Zhiling Cao Ling Zhang Mike‐Qingtao Huang Shuang Xia Yuhan Sun

10.1007/s10337-025-04389-5

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