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1. chinaXiv:202201.00065 [pdf]

Anisotropy flows in Pb–Pb collisions at LHC energies from parton scatterings with heavy quark trigger

Wang, Hai; Chen, Jin-Hui
Subjects: Physics >> Nuclear Physics

By implementing an additional heavy quark–antiquark pair production trigger in a multiphase transport (AMPT) model, we study the effect on anisotropy flows of identified particles with a focus on charged particles and quarkonium (J/Ψ and Υ). A systematic increase in the collision rate for active partons in the AMPT model with such an implementation has been observed. It leads to a slight increase of identified particles anisotropy flows as a function of transverse momentum (pT ) and rapidity, and gives a better description of the experimental data of elliptic flow toward larger pT . Our approach provides an efficient way to study the heavy quark dynamics in the AMPT model at LHC energies.

submitted time 2022-01-21 Cooperative journals:《Nuclear Science and Techniques》 Hits3214Downloads279 Comment 0

2. chinaXiv:201705.00405 [pdf]

High-Performance Polymer Solar Cells with Zinc Sulfide-Phenanthroline Derivatives as the Hybrid Cathode Interlayers

Wu, YL [Wu, Yulei][ 1 ]; Liu, XH [Liu, Xiaohui][ 1,2 ]; Li, XD [Li, Xiaodong][ 1,2 ]; Zhang, WJ [Zhang, Wenjun][ 1 ]; Wang, HQ [Wang, Hai-Qiao][ 1 ]; Fang, JF [Fang, Junfeng][ 1 ]
Subjects: Physics >> General Physics: Statistical and Quantum Mechanics, Quantum Information, etc.

Environmentally benign hybrid interlayers are prepared by modifying the zinc sulfide (ZnS) with phenanthroline/derivatives and utilized in inverted polymer solar cells (PSCs). Performances of the inverted PSCs are improved enormously by incorporating these hybrid inter- layers, as which can effectively improve the energy level alignment, electron mobility, surface morphology, and interfacial contact. Greatly improved power conversion efficiencies (PCEs) of 7.79%, 8.00%, 7.47%, and 7.56% are achieved with these hybrid interlayers ZnS-BCP, ZnS-Bphen, ZnS-Mphen, and ZnS-Phen, respectively, compared to the PCE of 2.99% of the reference ZnS-based device, based on PTB7:PC71BM active layer. Our results demonstrate that hybrid interfacial materials comprising inorganic and organic semiconductor possess promising potential to improve the performance of organic electronic devices, and set an example to develop this novel class of interfacial materials for electronic devices.

submitted time 2017-05-02 Hits1090Downloads728 Comment 0

3. chinaXiv:201609.00906 [pdf]

Study of cluster reconstruction and track fitting algorithms for CGEM-IT at BESIII

GUO Yue; WANG Liang-Liang; JU Xu-Dong; WU Ling-Hui; XIU Qing-Lei; WANG Hai-Xia; DONG Ming-Yi; HU Jing-Ran; LI Wei-Dong; LI Wei-Guo; LIU Huai-Min; OU-YANG Qun; SHEN Xiao-Yan; YUAN Ye; ZHANG Yao
Subjects: Physics >> Nuclear Physics

Considering the aging effects of existing Inner Drift Chamber (IDC) of BES\uppercase\expandafter{\romannumeral3}, a GEM based inner tracker is proposed to be designed and constructed as an upgrade candidate for IDC. This paper introduces a full simulation package of CGEM-IT with a simplified digitization model, describes the development of the softwares for cluster reconstruction and track fitting algorithm based on Kalman filter method for CGEM-IT. Preliminary results from the reconstruction algorithms are obtained using a Monte Carlo sample of single muon events in CGEM-IT.

submitted time 2016-09-13 Hits1541Downloads805 Comment 0

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