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Photoproduction of J/ψ in non-single-diffractive p+p collisions

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Chinese Physics C 2019年第6期43卷 38-44页

作者： ze-Hua Cao Li-Juan Ruan ze-bo tang Zhang-Bu Xu Chi Yang Shuai Yang Wang-Mei Zha State Key Laboratory of Particle Detection and Electronics University of Science and Technology of China. Hefei 230026 China Department of Modem Physics University of Science and Technology of China Hefei 230026 China Brookhaven National Laboratory New York USA Shandong University Jinan 250100 China

Significant enhancements of J/ψ production at very low transverse momenta were recently observed by the ALICE and STAR collaborations in peripheral hadronic A+A collisions. The anomalous excess points to coherent photon-nucleus interactions in violent hadronic heavy-ion collisions, which were conventionally studied only in ultra-peripheral collisions. Assuming that the coherent photoproduction is the underlying mechanism responsible for the excess observed in peripheral A+A collisions, its contribution in p+p collisions with nuclear overlap, i.e. nonsingle-diffractive collisions, is of particular interest. In this paper, we perform a calculation of exclusive J/ψ photoproduction in non-single-diffractive p+p collisions at the RHIC and LHC energies based on the pQCD motivated parametrization using the world-wide experimental data, which could be further employed to improve the precision of the phenomenological calculations for photoproduction in A+A collisions. The differential rapidity and transverse momentum distributions of J/ψ from photoproduction are presented. In comparison with the J/ψ production from hadronic interactions, we find that the contribution of photoproduction is negligible.

关键词： photoproduction jpsi RHIC LHC

Multiplicity dependence of charged particle,? meson, and multistrange particle productions in p + p collisions at s^(1/2) = 200 GeV from PYTHIA simulation

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Nuclear Science and Techniques 2018年第9期29卷 236-241页

作者： Sheng-Hui Zhang Long Zhou Yi-Fei Zhang Ming-Wei Zhang Cheng Li Ming Shao Yong-Jie Sun ze-bo tang University of Science and Technology of China Hefei 230026China

We report the multiplicity dependence of charged particle production for the n~±, K~±, p, , and ? mesons at |y|<1:0 in p + p collisions at s^(1/2) = 200 GeV from a PYTHIA simulation. The impact of multiple parton interactions and gluon contributions is studied and found to be a possible source of the splitting of the particle yields as a function of p_T with respect to the multiplicity. No obvious particle species dependence of the splitting is *** multiplicity dependence of the ratios Kˉ/πˉ, K^+/π^+,/πˉ, p/π^+, and K_s^0 at mid-rapidity in p+ p collisions is found to follow a tendency similar to that in Au t Au collisions at (s_(NN))^(1/2) = 200 GeV at the Relativistic Heavy Ion Collider, indicating similar underlying initial production mechanisms despite the differences in the initial colliding systems.

关键词： Particle production Heavy-ion collisions Small system Multiple parton interactions Gluon contributions

Extraction of inclusive photon production at mid-rapidity in p+p and Au+Au collisions at√SNN=200GeV

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Nuclear Science and Techniques 2021年第1期32卷 58-65页

作者： Sheng-Hui Zhang Rong-Rong Ma Yi-Fei Zhang Xiao-Long Chen Xiu-Jun Li Fan Si Cheng Li Ming Shao Yong-Jie Sun ze-bo tang Wang-Mei Zha University of Science and Technology of China Hefei 230026China University of Illinois at Chicago ChicagoIL 60607USA Brookhaven National Laboratory UptonNY 11973USA

We present a comprehensive study on the individual sources of an inclusive photon production during high-energy hadronic *** cross section and invariant yields of inclusive photons are obtained as a function of pT at mid-rapidity(|y|bottom and charm hadron yield suppression in heavyion collisions,which are used to test the mass hierarchy of the parton energy loss in the quark gluon plasma created during these *** procedure developed in this study can also be applied to other measurements of electrons from an open heavy-flavor hadron decay,such as the collective flow in the RHIC beam energy scan program.

关键词： Inclusive photon Cross section Invariant yields Mass hierarchy Technical reference

Properties of QCD matter:a review of selected results from ALICE experiment

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Nuclear Science and Techniques 2024年第12期35卷 409-437页

作者： Qi‑Ye Shou Yu‑Gang Ma Song Zhang Jian‑Hui Zhu Ya‑Xian Mao Hua Pei Zhong‑Bao Yin Xiao‑Ming Zhang Dai‑Cui Zhou Xin‑Ye Peng Xiao‑Zhi Bai ze‑bo tang Yi‑Fei Zhang Xiao‑Mei Li Key Laboratory of Nuclear Physics and Ion‑Beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Research Center for Theoretical Nuclear Physics NSFC and Fudan UniversityShanghai 200438China Key Laboratory of Quark&Lepton Physics(MOE)and Institute of Particle Physics Central China Normal UniversityWuhan 430079China School of Mathematics and Physics China University of Geosciences(Wuhan)Wuhan 430074China Department of Modern Physics University of Science and Technology of ChinaHefeiChina China Institute of Atomic Energy Beijing 102413China

The Large Hadron Collider(LHC), the world's largest and most powerful particle accelerator, has been a pivotal tool in advancing our understanding of fundamental physics. By colliding heavy ions, such as lead ions, the LHC recreates conditions similar to those just after the Big Bang. This allows scientists to study the quark-gluon plasma(QGP), a state of matter in which quarks and gluons are not confned within protons and neutrons. These studies provide valuable insights into the strong force and the behavior of the early universe. In this paper, we present a comprehensive overview of recent signifcant fndings from A Large Ion Collider Experiment(ALICE) at the LHC. The topics covered include measurements related to the properties of the QGP, particle production, fow and correlations, dileptons, quarkonia, and electromagnetic probes, heavy favor, and jets. Additionally, we introduce future plans for detector upgrades in the ALICE experiment.

关键词： Relativistic heavy-ion collisions Quark-gluon plasma LHC ALICE experiment

Properties of the QCD matter:review of selected results from the relativistic heavy ion collider beam energy scan(RHIC BES)program

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Nuclear Science and Techniques 2024年第12期35卷 274-311页

作者： Jin‑Hui Chen Xin Dong Xiong‑Hong He Huan‑Zhong Huang Feng Liu Xiao‑Feng Luo Yu‑Gang Ma Li‑Juan Ruan Ming Shao Shu‑Su Shi Xu Sun Ai‑Hong tang ze‑bo tang Fu‑Qiang Wang Hai Wang Yi Wang Zhi‑Gang Xiao Guan‑Nan Xie Nu Xu Qing‑Hua Xu Zhang‑Bu Xu Chi Yang Shuai Yang Wang‑Mei Zha Ya‑Peng Zhang Yi‑Fei Zhang Jie Zhao Xiang‑Lei Zhu Key Laboratory of Nuclear Physics and Ion‑Beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Nuclear Science Division Lawrence Berkeley National LaboratoryBerkeleyCA 94720USA QMRC Institute of Modern PhysicsChinese Academy of SciencesLanzhouChina Department of Physics and Astrophysics University of CaliforniaLos AngelesCA 90095USA Key Laboratory of Quark and Lepton Physics(MOE)and Institute of Particle Physics Central China Normal UniversityWuhan 430079China Department of Physics Brookhaven National LaboratoryUptonNY 11973USA Department of Modern Physics University of Science and Technology of ChinaHefeiChina Department of Physics Purdue UniversityWest LafayetteIN 47907USA Department of Engineering Physics Tsinghua UniversityBeijingChina Department of Physics Tsinghua UniversityBeijingChina School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Particle Physics and Particle Irradiation(MOE) Institute of Frontier and Interdisciplinary ScienceShandong UniversityQingdao 266237China Department of Physics Kent State UniversityKentOH 44242USA Institute of Quantum Matter South China Normal UniversityGuangzhou 510006China

In the paper,we discuss the development of the multigap resistive plate chamber time-of-fight(TOF)technology and the production of the solenoidal tracker at RHIC(STAR)TOF detector in China at the beginning of the twenty-frst ***,recent experimental results from the frst beam energy scan program(BES-I)at the Relativistic Heavy Ion Collider(RHIC)pertaining to measurements of collectivity,chirality,criticality,global polarization,strangeness,heavy favor,dilepton and light nuclei productions are reviewed.

关键词： Heavy ion collision Quark-gluon plasma QCD phase diagram Collectivity Chirality Criticality

The potential mechanism and clinical application value of remote ischemic conditioning in stroke

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Neural Regeneration Research 2025年第6期20卷 1613-1627页

作者： Yajun Zhu Xiaoguo Li Xingwei Lei Liuyang tang Daochen Wen bo zeng Xiaofeng Zhang Zichao Huang Zongduo Guo The First Affiliated Hospital of Chongqing Medical University ChongqingChina

Some studies have confirmed the neuroprotective effect of remote ischemic conditioning against stroke. Although numerous animal researches have shown that the neuroprotective effect of remote ischemic conditioning may be related to neuroinflammation, cellular immunity, apoptosis, and autophagy, the exact underlying molecular mechanisms are unclear. This review summarizes the current status of different types of remote ischemic conditioning methods in animal and clinical studies and analyzes their commonalities and differences in neuroprotective mechanisms and signaling pathways. Remote ischemic conditioning has emerged as a potential therapeutic approach for improving stroke-induced brain injury owing to its simplicity, non-invasiveness, safety, and patient tolerability. Different forms of remote ischemic conditioning exhibit distinct intervention patterns, timing, and application range. Mechanistically, remote ischemic conditioning can exert neuroprotective effects by activating the Notch1/phosphatidylinositol 3-kinase/Akt signaling pathway, improving cerebral perfusion, suppressing neuroinflammation, inhibiting cell apoptosis, activating autophagy, and promoting neural regeneration. While remote ischemic conditioning has shown potential in improving stroke outcomes, its full clinical translation has not yet been achieved.

关键词： Akt apoptosis autophagy cerebral perfusion cerebral vascular stenosis clinical transformation hemorrhagic stroke ischemic stroke neuroinflammation neuroprotection Notch1 PI3K remote ischemic conditioning stroke

Unraveling the mechanism of action of Shangxia Liangji formula for treating insomnia:a metabolomics and network pharmacology approach

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Traditional Medicine Research 2025年第2期10卷 16-29页

作者： Xia-Jie Quan Hao Liang Yong-Hong tang Li Jiang Xiong-Ying Ji Feng-Ying Zhang Ping Zhang bo Ouyang Department of Information The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Neurology The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Gastroscopy The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China Department of Traditional Chinese Medicine The Affiliated Nanhua HospitalHengyang Medical SchoolUniversity of South ChinaHengyang 421002China

Background:Insomnia is a prevalent clinical condition and Shangxia Liangji formula(SXLJF)is a well-established method of ***,the specific mechanism of action of SXLJF remains ***:The mouse model of insomnia was established by intraperitoneal injection of ***-two mice were randomly divided into a negative control group,model group,SXLJF group(18.72 g/kg/day),and positive control group(diazepam,2 mg/kg)and treated with the corresponding drugs for 7 consecutive *** open field test and pentobarbital-induced sleeping test were ***-MS-based untargeted metabolomics and network pharmacology were applied to explore the potential targets of SXLJF for treating ***,key targets were validated using ***:Behavioral tests demonstrated that SXLJF reduced the total distance,average velocity,central distance,and sleep latency,and prolonged sleep *** and network pharmacology revealed potential targets,signaling pathways,metabolic pathways,and metabolites associated with the anti-insomnia effects of ***,tyrosine hydroxylase(TH)and tyrosine metabolism emerged as crucial metabolic pathways and targets,***-qPCR results supported the role of TH in the mechanism of SXLJF in treating ***:In conclusion,TH and tyrosine metabolism may represent significant targets and pathways for SXLJF in treating insomnia.

关键词： Shangxia Liangji formula insomnia metabolomics network pharmacology tyrosine hydroxylase tyrosine metabolism

SYSTEM SIMULATION AND RELIABILITY ASSESSMENT OF CHINESE CARboN SEQUESTRATION MARKET

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Journal of Systems Science & Complexity 2014年第4期27卷 760-776页

作者： tang bo GAO Jianzhong College of Economics and Management Northwest A&F University Department of Economics The University of Sheffield

This study builds a simulation of Chinese carbon sequestration market(CSM) based on the Swarm platform and complex adaptive system(CAS) *** simulation results represent that the total assets and profits of the carbon sequestration project(CSP) buyer and seller are steadily on the increase in the carbon trading *** market regulatory efficiency is determined by the market investment and the improvement of regulation ***,the real sample simulation of Sichuan Daduhe Forest CSP demonstrates that the profit of CSP traded in the CSM is higher than the profit from the transactions of outside *** implies that establishing CSM is an effective way to improve the CSP business for investors and a positive action to response to global warming as ***,this study applies an Analytic Hierarchy Process-Fuzzy Comprehensive Evaluation(AHPFCE) approach to evaluate the reliability of CSM *** concludes that the CSM simulation is "more creditable",which indicates that the CSM simulation results can be used as a proxy to observe the market uncertainties.

关键词： Carbon sequestration market (CSM) carbon sequestration project (CSP) simulation,reliability assessment AHP-FCE approach.

Review:Advances in research of stress-assisted corrosion fatigue problem

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Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2007年第2期8卷 221-227页

作者： tang Zhi-bo LI Qiang Division of Engineering Zhejiang Ocean University Zhoushan 316004 China

Ceramic materials are notable for their rigidity, insulation and resistance to hostile environment, Nevertheless, if a stressed ceramic component is exposed to chemical attack, it may suffer from a form of delayed fracture known as static fatigue. From the point of view of a designer, it is clearly desirable to determine the behavior of sub-critical crack growth; the crack path and crack growth rate, as a function of material properties and loading conditions are of particular interest. This paper presents a review of advances in stress assisted corrosion problem in history and its corresponding numerical approaches in the last decades, and finally, comes uo with consideration and crucial suggestions for future work.

关键词： Stress corrosion Finite element method (FEM) Fracture Static fatigue Meshless local Petrov-Galerkin (MLPG)