作者:
Deng, B.;Zhang, L.;Chao, C. -P;Chen, S. -W;Cruda, E.;...
期刊:
Journal of Instrumentation,2023年18(2):C02065 ISSN:1748-0221
通讯作者:
Liu, T
作者机构:
[Deng, B.] Hubei Polytech Univ, Huangshi 435003, Hubei, Peoples R China.;[Gong, D.; Ye, J.; Huang, X.; Liu, T.; Zhang, L.; Cruda, E.] Southern Methodist Univ, Dallas, TX 75275 USA.;[Zhang, L.; Sun, X.] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.;[Chao, C. -P; Chen, S. -W; Li, C. -Y] APAC Opto Elect Inc, Hsinchu 303, Taiwan.;[Hou, S.] Acad Sinica, Taipei 11529, Taiwan.
通讯机构:
[Liu, T ] S;Southern Methodist Univ, Dallas, TX 75275 USA.
会议名称:
244th Electrochemical Society Meeting (ECS)
会议时间:
OCT 08-12, 2023
会议地点:
Gothenburg, SWEDEN
会议主办单位:
[Deng, B.] Hubei Polytech Univ, Huangshi 435003, Hubei, Peoples R China.^[Zhang, L.;Cruda, E.;Gong, D.;Huang, X.;Liu, T.;Ye, J.] Southern Methodist Univ, Dallas, TX 75275 USA.^[Zhang, L.;Sun, X.] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.^[Chao, C. -P;Chen, S. -W;Li, C. -Y] APAC Opto Elect Inc, Hsinchu 303, Taiwan.^[Hou, S.] Acad Sinica, Taipei 11529, Taiwan.^[Liu, E. R.] Allen High Sch, Allen, TX 75002 USA.^[Sun, Q.] Fermilab Natl Accelerator Lab, Batavia, IL 60510 USA.^[Wong, G.] Plano East Sr High Sch, Plano, TX 75074 USA.
摘要:
We present a pluggable radiation-tolerant 4-level Pulse-Amplitude-Modulation (PAM4) optical transmitter module called GBT20 (Giga-Bit Transmitter at 20 Gbps) for particle -physics experiments. GBT20 has an OSFP or firefly connector to input 16 bit data each at 1.28 Gbps. The GBT20 drives a VCSEL die with an LC lens or a VCSEL TOSA and interfaces an optical fiber with a standard LC connector. The minimum module, including the host connector, occupies 41 mm x 13 mm x 6 mm. At 20.48 Gbps, the minimum Transmitter Dispersion Eye Closure Quaternary (TDECQ) is around 0.7 dB. The power consumption is around 164 mW in the low-power mode. The SEE cross-section is below 7.5 x 10-14 cm2. No significant performance degrades after a TID of 5.4 kGy.
作者机构:
[Mi, Ke] Cent China Normal Univ, MOE, Key Lab Quark & Lepton Phys, Wuhan 430079, Peoples R China.;[Mi, Ke] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;[Mi, Ke] Heidelberg Univ, Inst Phys, D-69117 Heidelberg, Germany.
会议名称:
29th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions Quark Matter
会议时间:
APR 04-10, 2022
会议地点:
Krakow, POLAND
会议主办单位:
[Mi, Ke] Cent China Normal Univ, MOE, Key Lab Quark & Lepton Phys, Wuhan 430079, Peoples R China.^[Mi, Ke] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.^[Mi, Ke] Heidelberg Univ, Inst Phys, D-69117 Heidelberg, Germany.
摘要:
In these proceedings, we present the measurements of proton, light nuclei, and strange particle with neutral kaons correlation functions in Au+Au collisions at the BES program and top RHIC energy. The experimental results are compared with model calculations to extract the size of emitting source and the properties of the final-state interactions. The collision energy and centrality dependence of the source size are studied. Further, the implications for the production mechanism of light nuclei are discussed.
摘要:
The Digital Pixel Test Structure (DPTS) is a monolithic active pixel sensor prototype chip designed to explore the TPSCo 65 nm ISC process in the framework of the CERN-EP R & D on monolithic sensors and the ALICE ITS3 upgrade. It features a 32 x 32 binary pixel matrix at 15 mu m pitch with event-driven readout, with GHz range time-encoded digital signals including Time-Over-Threshold. The chip proved fully functional and efficient in testbeam allowing early verification of the complete sensor to readout chain. This paper focuses on the design, in particular the digital readout and its perspectives with some supporting results.
作者机构:
[Chen, Wei; Chen, W] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China.;[Pang, Longgang; Wang, Xin-Nian; Yang, Zhong] Cent China Normal Univ, Key Lab Quark & Lepton Phys, MOE, Wuhan 430079, Peoples R China.;[Pang, Longgang; Wang, Xin-Nian; Yang, Zhong] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;[He, Yayun] South China Normal Univ, Guangdong Prov Key Lab Nucl Sci, Inst Quantum Matter, Guangzhou 510006, Peoples R China.;[Luo, Tan] Univ Santiago Compostela, Inst Galego Fis Altas Enerxias IGFAE, Galicia, Spain.
会议名称:
29th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions Quark Matter
会议时间:
APR 04-10, 2022
会议地点:
Krakow, POLAND
会议主办单位:
[Chen, Wei] Univ Chinese Acad Sci, Sch Nucl Sci & Technol, Beijing 100049, Peoples R China.^[Yang, Zhong;Pang, Longgang;Wang, Xin-Nian] Cent China Normal Univ, Key Lab Quark & Lepton Phys, MOE, Wuhan 430079, Peoples R China.^[Yang, Zhong;Pang, Longgang;Wang, Xin-Nian] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.^[He, Yayun] South China Normal Univ, Guangdong Prov Key Lab Nucl Sci, Inst Quantum Matter, Guangzhou 510006, Peoples R China.^[Luo, Tan] Univ Santiago Compostela, Inst Galego Fis Altas Enerxias IGFAE, Galicia, Spain.^[Wang, Xin-Nian] Lawrence Berkeley Natl Lab, Nucl Sci Div, MS 70R0319, Berkeley, CA 94720 USA.
摘要:
Diffusion wake is an unambiguous part of the jet-induced medium response in high-energy heavy-ion collisions that leads to a depletion of soft hadrons in the opposite direction of the jet propagation. Using a coupled linear Boltzmann transport and hydro model, we identify a valley structure caused by the diffusion wake on top of a ridge from the initial multiple parton interaction (MPI) in the jet-hadron correlation as a function of azimuthal angle and rapidity. This gives rise to the unambiguous signals of the diffusion wake on soft hadrons in the opposite direction of the jets, which are reflected in the depletion in azimuthal angle distribution after subtraction of the contributions from MPI with a mixed-event procedure, and the double-peak structure in the rapidity distribution. We further employ the longitudinal and transverse gradient jet tomography for the first time to localize the initial jet production positions in Z/gamma-jet events in which the effect of the diffusion wake is apparent in Z/gamma-hadron correlation even without the subtraction of MPI.
作者机构:
[Xia, Qiaoqiao; Wang, Ji; Wang, J; Ma, Xinxin] Cent China Normal Univ, Dept Elect & Informat Engn, Wuhan, Peoples R China.;[Zheng, Le] Beijing Inst Technol, Sch Informat & Elect, Beijing, Peoples R China.;[Yang, Kai] Tongji Univ, Dept Comp Sci, Shanghai, Peoples R China.;[Chen, Zhao] Tsinghua Univ, Beijing Natl Res Ctr Informat Sci & Technol, Beijing, Peoples R China.
会议名称:
IEEE Wireless Communications and Networking Conference (WCNC)
会议时间:
MAR 26-29, 2023
会议地点:
Glasgow, SCOTLAND
会议主办单位:
[Wang, Ji;Ma, Xinxin;Xia, Qiaoqiao] Cent China Normal Univ, Dept Elect & Informat Engn, Wuhan, Peoples R China.^[Zheng, Le] Beijing Inst Technol, Sch Informat & Elect, Beijing, Peoples R China.^[Yang, Kai] Tongji Univ, Dept Comp Sci, Shanghai, Peoples R China.^[Chen, Zhao] Tsinghua Univ, Beijing Natl Res Ctr Informat Sci & Technol, Beijing, Peoples R China.
会议论文集名称:
IEEE Wireless Communications and Networking Conference
关键词:
Internet of Things;ultra-dense cloud radio access network;energy harvesting;successive convex approximation
摘要:
This paper studies the secrecy wireless information and power transfer problem in ultra-dense cloud radio access network (UD-CRAN) with wireless fronthaul, which is a promising framework for future Internet of Things (IoT). The transmission schemes of wireless fronthaul and access links are jointly designed, while addressing the characteristics of ultra-dense network such as base station diversity and high probability of line-of-sight transmission. Specifically, we employ the idea of block diagonalization to deal with the fronthaul interference, which support multi-stream fronthaul transmission for each remote radio head (RRH). We then jointly optimize the power allocation in the fronthaul and the resource allocation in the access link which includes beamforming for information and energy transmission, on/off of RRHs, and user-RRH association. In order to solve the formulated mixed integer non-convex optimization problem, we leverage the sparsity of beamforming vectors brought by the ultra-dense RRHs. We then solve the reformulated problem by employing the successive convex approximation approach. Finally, numerical results are presented to demonstrate the effectiveness of the proposed scheme.
期刊:
EPJ Web of Conferences,2023年276:03006-null ISSN:2100-014X
通讯作者:
Zhoul, YJ
作者机构:
[Zhoul, Yingjie] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;[Zhoul, Yingjie] Cent China Normal Univ, 1Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
通讯机构:
[Zhoul, YJ ] C;Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;Cent China Normal Univ, 1Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
会议名称:
20th International Conference on Strangeness in Quark Matter (SQM)
会议时间:
JUN 13-18, 2022
会议地点:
Busan, SOUTH KOREA
会议主办单位:
[Zhoul, Yingjie] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.^[Zhoul, Yingjie] Cent China Normal Univ, 1Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
会议论文集名称:
EPJ Web of Conferences
关键词:
conference;proceedings;physics;astronomy;The European Physical Journal;EPJ
摘要:
Strangeness production has been suggested to be a sensitive probe to the early-time dynamics of the nuclear matter created in heavy-ion collisions. Transverse momentum distributions and yields of strange hadrons provide important information on their production mechanisms and can help us probe the properties of the created medium and its evolution. Thanks to the high statistics data taken during the STAR BES-II program in 2018-2021, a series of measurements on the properties of strangeness production at low energies are carried out. In these proceedings, the production of <i>K<i/><sup>−<sup/>, , <i>ϕ<i/>, <i>Λ<i/>, and Ξ<sup>−<sup/> in Au+Au collisions at GeV are presented. The strange hadron transverse momentum spectra, rapidity density distributions, and particle ratios are shown. These results are compared with UrQMD model calculations, and the extracted kinetic freeze-out parameters are discussed and compared with the ones from higher collision energies.
作者机构:
[Lu, Wei; Wang, Zhongyi] Cent China Normal Univ, Wuhan, Peoples R China.;[Zhang, Chengzhi; Chen, Haihua] Univ North Texas, Denton, TX 76203 USA.;[Zhang, Chengzhi] Nanjing Univ Sci & Technol, Nanjing, Peoples R China.;[Wu, Jian] Old Dominion Univ, Norfolk, VA USA.
会议名称:
23rd ACM/IEEE Joint Conference on Digital Libraries (JCDL)
会议时间:
JUN 26-30, 2023
会议地点:
Santa Fe, NM
会议主办单位:
[Wang, Zhongyi;Lu, Wei] Cent China Normal Univ, Wuhan, Peoples R China.^[Chen, Haihua] Univ North Texas, Denton, TX 76203 USA.^[Zhang, Chengzhi] Nanjing Univ Sci & Technol, Nanjing, Peoples R China.^[Wu, Jian] Old Dominion Univ, Norfolk, VA USA.
会议论文集名称:
ACM-IEEE Joint Conference on Digital Libraries JCDL
关键词:
Innovation measurement;scientific communication;academic data mining;digital library
摘要:
The increasingly mature artificial intelligence technologies, such as big data, deep learning, and natural language processing, provide technical support for research on automatic text understanding and bring development opportunities for innovative measurement of scientific communication. Innovation measurement in scientific communication is a challenging and cutting-edge direction in Informetrics. It is interdisciplinary, requiring considering the characteristics of different disciplines and different types of scientific outcomes to establish a comprehensive evaluation metrics system. On the other hand, metadata and content features should be considered to reflect the innovation of scientific works objectively and comprehensively. This workshop focuses on the discussion and produces enlightening outcomes. We will engage broad audiences to share their ideas and pre-productions, enabling an interdisciplinary approach to exploring frontier areas. This workshop consists of keynotes, oral presentations, and poster sessions and would attract interest from academic researchers, librarians, and decision-makers from governments and practical sectors.
作者机构:
[Hou, Junjie; Lin, Hai; Hou, JJ; Fu, Jiaping; Jin, Jing; Liu, Zixin] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan, Peoples R China.;[Feng, Feng] Tianjin Univ, Sch Microelect, Tianjin, Peoples R China.
会议名称:
IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization (NEMO)
会议时间:
JUN 28-30, 2023
会议地点:
Winnipeg, CANADA
会议主办单位:
[Hou, Junjie;Jin, Jing;Lin, Hai;Liu, Zixin;Fu, Jiaping] Cent China Normal Univ, Coll Phys Sci & Technol, Wuhan, Peoples R China.^[Feng, Feng] Tianjin Univ, Sch Microelect, Tianjin, Peoples R China.
会议论文集名称:
International Conference on Numerical Electromagnetic Modeling and Optimization for RF Microwave and Terahertz Applications
关键词:
Inverse design;deep learning;metasurface
摘要:
Inverse design has been an important method to the design of metasurface. Deep learning techniques have been applied to the inverse design of metasurface in recent work. This paper provides an overview of advances in deep learning techniques for inverse design of metasurface, including a target-driven deep learning inverse design technique, the fuzzy inverse design technique, the freeform inverse design technique and the machine-learning-assisted inverse design technique.
作者:
Leitao, P. Vicente;Rinella, G. Aglieri;Bugiel, S.;Cecconi, L.;de Melo, J. L. A.;...
期刊:
Journal of Instrumentation,2023年18(1):C01044 ISSN:1748-0221
作者机构:
[Snoeys, W.; Cecconi, L.; Hong, G. H.; Deng, W.; Rinella, G. Aglieri; de Melo, J. L. A.; Martin, A. Dorda; Dorosz, P.; Pulli, A.; Kremastiotis, I.; Leitao, P. Vicente; Piro, F.; Kugathasan, T.] CERN, Geneva, Switzerland.;[Piro, F.] Ecole Polytech Fed Lausanne, Lausanne, Switzerland.;[Deng, W.] Cent China Normal Univ, Wuhan, Peoples R China.;[Gajanana, D.; Yelkenci, A.; Gromov, V.] NIKHEF, Amsterdam, Netherlands.;[Fang, X.; Soudier, J.; Valin, I.; Morel, F.; Bugiel, S.] IPHC, Strasbourg, France.
会议名称:
Topical Workshop on Electronics for Particle Physics (TWEPP)
会议时间:
SEP 19-23, 2022
会议地点:
Bergen, NORWAY
会议主办单位:
[Leitao, P. Vicente;Rinella, G. Aglieri;Cecconi, L.;de Melo, J. L. A.;Deng, W.;Martin, A. Dorda;Dorosz, P.;Hong, G. H.;Kremastiotis, I.;Kugathasan, T.;Piro, F.;Pulli, A.;Snoeys, W.] CERN, Geneva, Switzerland.^[Piro, F.] Ecole Polytech Fed Lausanne, Lausanne, Switzerland.^[Deng, W.] Cent China Normal Univ, Wuhan, Peoples R China.^[Gajanana, D.;Gromov, V.;Yelkenci, A.] NIKHEF, Amsterdam, Netherlands.^[Bugiel, S.;Fang, X.;Morel, F.;Soudier, J.;Valin, I.] IPHC, Strasbourg, France.^[Hong, G. H.] Yonsei Univ, Seoul, South Korea.^[De Robertis, G.;Loddo, F.] Univ Bari, Bari, Italy.^[De Robertis, G.;Loddo, F.] INFN Bari, Bari, Italy.^[Marras, D.] Univ Cagliari, Cagliari, Italy.^[Marras, D.] INFN Cagliari, Karlsruhe, Italy.^[Hodges, A.;Matthew, S.;Sedgwick, I.] STFC Rutherford Appleton Lab, Didcot, England.
关键词:
Solid state detectors;VLSI circuits
摘要:
The MOnolithic Stitched Sensor (MOSS) is a development prototype chip towards the ITS3 vertexing detector for the ALICE experiment at the LHC. Designed using a 65 nm CMOS Imaging technology, it aims at profiting from the stitching technique to construct a single-die monolithic pixel detector of 1.4 cm × 26 cm. The MOSS prototype is one of the prototypes developed within the CERN-EP R&D framework to learn how to make stitched wafer-scale sensors with satisfactory yield. This contribution will describe some of the design challenges of a stitched pixel sensor and the techniques adopted during the development of this prototype.
作者机构:
[Gao, Yijing; Raj, Ashish; Nagarajan, Srikantan S.; Ghosh, Sanjay] Univ Calif San Francisco, San Francisco, CA 94143 USA.;[Cai, Chang] Cent China Normal Univ, Wuhan, Peoples R China.;[Hashemi, Ali; Haufe, Stefan] Tech Univ Berlin, Berlin, Germany.;[Sekihara, Kensuke] Signal Anal Inc, Tokyo, Japan.
会议名称:
20th IEEE International Symposium on Biomedical Imaging (ISBI)
会议时间:
APR 18-21, 2023
会议地点:
Cartagena, COLOMBIA
会议主办单位:
[Ghosh, Sanjay;Gao, Yijing;Raj, Ashish;Nagarajan, Srikantan S.] Univ Calif San Francisco, San Francisco, CA 94143 USA.^[Cai, Chang] Cent China Normal Univ, Wuhan, Peoples R China.^[Hashemi, Ali;Haufe, Stefan] Tech Univ Berlin, Berlin, Germany.^[Sekihara, Kensuke] Signal Anal Inc, Tokyo, Japan.
会议论文集名称:
IEEE International Symposium on Biomedical Imaging
关键词:
EEG;MEG;brain source imaging;low-rank noise
摘要:
The inverse problem in brain source imaging is the reconstruction of brain activity from non-invasive recordings of electroencephalography (EEG) and magnetoencephalography (MEG). One key challenge is the efficient recovery of sparse brain activity when the data is corrupted by structured noise that is low-rank noise. This is often the case when there are a few active sources of environmental noise and the MEG/EEG sensor noise is highly correlated. In this paper, we propose a novel robust empirical Bayesian framework which provides us a tractable algorithm for jointly estimating a low-rank noise covariance and brain source activity. Specifically, we use a factor analysis model for the structured noise, and infer a sparse set of variance parameters for source activity, while performing Variational Bayesian inference for the noise. One key aspect of this algorithm is that it does not require any additional baseline measurements to estimate the noise covariance from the sensor data. We perform exhaustive experiments on both simulated and real datasets. Our algorithm achieves superior performance as compared to several existing benchmark algorithms.
期刊:
EPJ Web of Conferences,2023年276:01018-null ISSN:2100-014X
通讯作者:
Liu, LK
作者机构:
[Liu, Li-Ke] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.;[Liu, Li-Ke] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
通讯机构:
[Liu, LK ] C;Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
会议名称:
20th International Conference on Strangeness in Quark Matter (SQM)
会议时间:
JUN 13-18, 2022
会议地点:
Busan, SOUTH KOREA
会议主办单位:
[Liu, Li-Ke] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.^[Liu, Li-Ke] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
会议论文集名称:
EPJ Web of Conferences
关键词:
conference;proceedings;physics;astronomy;The European Physical Journal;EPJ
摘要:
In these proceedings, we present the measurements of elliptic (<i>v<i/><sub>2<sub/>) and triangular (<i>v<i/><sub>3<sub/>) flow of (multi-)strange hadrons and ϕ mesons in 19.6 and 14.6 GeV Au+Au collisions from the STAR. The number of constituent quark (NCQ) scaling of <i>v<i/><sub>2<sub/> and <i>v<i/><sub>3<sub/> holds well at , which indicates the collective flow is built up in the partonic stage. At these energies, the anti-particles show better NCQ scaling than the particles for both <i>v<i/><sub>2<sub/> and <i>v<i/><sub>3<sub/>, which may be caused by the different contributions from the produced and transported quarks.
摘要:
In recent years, cross-modal hashing has attracted an increasing attention due to its fast retrieval speed and low storage requirements. However, labeled datasets are limited in real application, and existing unsupervised cross-modal hashing algorithms usually employ heuristic geometric prior as semantics, which introduces serious deviations as the similarity score from original features cannot reasonably represent the relationships among instances. In this paper, we study the unsupervised deep cross-modal hash retrieval method and propose a novel Semantic Graph Evolutionary Hashing (SGEH) to solve the above problem. The key novelty of SGEH is its evolutionary affinity graph construction method. To be concrete, we explore the sparse similarity graph with clustering results, which evolve from fusing the affinity information from code-driven graph on intrinsic data and subsequently extends to dense hybrid semantic graph which restricts the process of hash code learning to learn more discriminative results. Moreover, the batch-inputs are chosen from edge set rather than vertexes for better exploring the original spatial information in the sparse graph. Experiments on four benchmark datasets demonstrate the superiority of our framework over the state-of-the-art unsupervised cross-modal retrieval methods. Code is available at: https://github.com/theusernamealreadyexists/SGEH.
关键词:
Analogue electronic circuits;CMOS readout of gaseous detectors;Front-end electronics for detector readout
摘要:
This paper presents the design and test results of a low noise Phase Locked Loop (PLL) Application Specific Integrated Circuit (ASIC), which is designed for the data transmission system in a pixel chip for a beam monitor of the Cooling Storage Ring (CSR) external target experiment at HIRFL in China. The proposed PLL consists of a differential ring oscillator, a digital divider, a three-state phase frequency detector, a current charge pump, a second-order loop filter and current mode level buffers. A prototype PLL ASIC has been fabricated in a standard 130 nm CMOS process. The test results show that the frequency of the output clock is about 2.2 GHz with a phase noise of −90 dBc/Hz at a frequency offset of 1 MHz and a root mean square jitter of 1.15 ps. The core circuit of the PLL consumes about 30 mW under the power supply of 1.2 V.
作者机构:
[Peng, Xinye] China Univ Geosci, Wuhan, Peoples R China.;[Peng, Xinye] Cent China Normal Univ, Wuhan, Peoples R China.
会议名称:
29th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions Quark Matter
会议时间:
APR 04-10, 2022
会议地点:
Krakow, POLAND
会议主办单位:
[Peng, Xinye] China Univ Geosci, Wuhan, Peoples R China.^[Peng, Xinye] Cent China Normal Univ, Wuhan, Peoples R China.
摘要:
In this contribution, the final measurements of the centrality dependence of the nuclear modification factor (R-AA) of non-prompt D-0 in Pb-Pb collisions at root s(NN) = 5.02 TeV will be presented. These measurements provide important constraints to the mass dependence of in-medium energy loss and hadronisation of the beauty quark. The pT-integrated non-prompt D-0 R-AA will be presented for the first time and will be compared to the prompt D-0 one. This comparison will shed light on possible different shadowing effects between charm and beauty quarks. In addition, the first measurements of non-prompt D-s(+) production in central and semi-central Pb-Pb collisions at root s(NN) = 5.02 TeV will be discussed. The non-prompt D-s(+) measurements provide additional information on the hadronisation of beauty quarks and the production yield of B-s(0) mesons. Finally, the first measurement of non-prompt D-meson elliptic flow in Pb-Pb collisions at root s(NN) = 5.02 TeV will also be discussed. These measurements can constrain the degree of thermalisation of beauty quarks in the hot and dense QCD medium.
作者:
Fu, Baochi;Pang, Longgang;Song, Huichao;Yin, Yi
作者机构:
[Fu, Baochi; Fu, BC; Song, Huichao] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.;[Fu, Baochi; Fu, BC; Song, Huichao] Peking Univ, Dept Phys, Beijing 100871, Peoples R China.;[Fu, Baochi; Fu, BC; Song, Huichao] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China.;[Fu, Baochi; Fu, BC; Song, Huichao] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China.;[Pang, Longgang] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.
会议名称:
29th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions Quark Matter
会议时间:
APR 04-10, 2022
会议地点:
Krakow, POLAND
会议主办单位:
[Fu, Baochi;Song, Huichao] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China.^[Fu, Baochi;Song, Huichao] Peking Univ, Dept Phys, Beijing 100871, Peoples R China.^[Fu, Baochi;Song, Huichao] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China.^[Fu, Baochi;Song, Huichao] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China.^[Pang, Longgang] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.^[Pang, Longgang] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.^[Yin, Yi] Chinese Acad Sci, Inst Modern Phys, Quark Matter Res Ctr, Lanzhou 730000, Peoples R China.^[Yin, Yi] Univ Chinese Acad Sci, Beijing 100049, Peoples R China.
摘要:
In these proceedings, we present our recent prediction on the local net Lambda polarization to search for the baryonic spin Hall effect (SHE) at RHIC BES energies. The baryonic SHE is induced by the gradients of baryon chemical potential, which leads to local polarization separation between baryons and anti-baryons. Based on hydrodynamic simulations with the spin Cooper-Fryer formula, we propose to use P-2,y(net) and P-2,z(net), the second Fourier coefficients of net spin polarization to quantify this baryonic SHE. Future experimental observation of their non-trivial signatures could strongly support the existence of the baryon SHE in hot and dense QCD matter.
作者机构:
[Liu, Hui] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.;[Liu, Hui] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.;[Liu, Hui] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany.
会议名称:
29th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions Quark Matter
会议时间:
APR 04-10, 2022
会议地点:
Krakow, POLAND
会议主办单位:
[Liu, Hui] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.^[Liu, Hui] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.^[Liu, Hui] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany.
摘要:
In these proceedings, we present the measurements of centrality, transverse momentum, and rapidity dependences of proton (p) and light-nuclei (d ((d) over bar), t, He-3 ((He-3) over bar), and He-4) production in Au+Au collisions at root s(NN) = 3 GeV, and isobaric (Ru+Ru and Zr+Zr) collisions at root s(NN) = 200 GeV. The compound yield ratios in central collisions at 3 GeV are found to be larger than the transport model calculations. Furthermore, the kinetic freeze-out parameters at 3 GeV show a different trend compared to those of light hadrons (pi, K, p) at higher energies.
作者机构:
[Wang, Wenshuo; Li, Zengyang; Wang, Sicheng; Mo, Ran] Cent China Normal Univ, Sch Comp Sci, Wuhan, Peoples R China.;[Wang, Wenshuo; Li, Zengyang; Wang, Sicheng; Mo, Ran] Cent China Normal Univ, Hubei Prov Key Lab Artificial Intelligence & Smar, Wuhan, Peoples R China.;[Liang, Peng; Li, Bing] Wuhan Univ, Sch Comp Sci, Wuhan, Peoples R China.;[Liang, Peng] Wuhan Univ, Sch Comp Sci, Wuhan, Peoples R China.
会议名称:
31st IEEE/ACM International Conference on Program Comprehension (ICPC)
会议时间:
MAY 15-16, 2023
会议地点:
Melbourne, AUSTRALIA
会议主办单位:
[Li, Zengyang;Wang, Sicheng;Wang, Wenshuo;Mo, Ran] Cent China Normal Univ, Sch Comp Sci, Wuhan, Peoples R China.^[Li, Zengyang;Wang, Sicheng;Wang, Wenshuo;Mo, Ran] Cent China Normal Univ, Hubei Prov Key Lab Artificial Intelligence & Smar, Wuhan, Peoples R China.^[Liang, Peng;Li, Bing] Wuhan Univ, Sch Comp Sci, Wuhan, Peoples R China.
会议论文集名称:
International Conference on Program Comprehension
关键词:
Deep Learning Framework;Bug;Multiple-Programming-Language Software System;Empirical Study
摘要:
Deep learning frameworks (DLFs) have been playing an increasingly important role in this intelligence age since they act as a basic infrastructure for an increasingly wide range of AI-based applications. Meanwhile, as multi-programming-language (MPL) software systems, DLFs are inevitably suffering from bugs caused by the use of multiple programming languages (PLs). Hence, it is of paramount significance to understand the bugs (especially the bugs involving multiple PLs, i.e., MPL bugs) of DLFs, which can provide a foundation for preventing, detecting, and resolving bugs in the development of DLFs. To this end, we manually analyzed 1497 bugs in three MPL DLFs, namely MXNet, PyTorch, and TensorFlow. First, we classified bugs in these DLFs into 12 types (e.g., algorithm design bugs and memory bugs) according to their bug labels and characteristics. Second, we further explored the impacts of different bug types on the development of DLFs, and found that deployment bugs and memory bugs negatively impact the development of DLFs in different aspects the most. Third, we found that 28.6%, 31.4%, and 16.0% of bugs in MXNet, PyTorch, and TensorFlow are MPL bugs, respectively; the PL combination of Python and C/C++ is most used in fixing more than 92% MPL bugs in all DLFs. Finally, the code change complexity of MPL bug fixes is significantly greater than that of single-programming-language (SPL) bug fixes in all the three DLFs, while in PyTorch MPL bug fixes have longer open time and greater communication complexity than SPL bug fixes. These results provide insights for bug management in DLFs.
作者机构:
[Zhang, Yu; Zhang, Y] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.;[Zhang, Yu; Zhang, Y] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
会议名称:
29th International Conference on Ultrarelativistic Nucleus-Nucleus Collisions Quark Matter
会议时间:
APR 04-10, 2022
会议地点:
Krakow, POLAND
会议主办单位:
[Zhang, Yu] Cent China Normal Univ, Key Lab Quark & Lepton Phys MOE, Wuhan 430079, Peoples R China.^[Zhang, Yu] Cent China Normal Univ, Inst Particle Phys, Wuhan 430079, Peoples R China.
摘要:
In these proceedings, we present higher-order cumulants of proton multiplicity distributions of the fixed-target (FXT) run in Au+Au collisions at root s(NN) = 3.0 GeV. The cumulant ratios are presented as a function of centrality and collision energy. The proton cumulant ratio C-4/C-2 is consistent with fluctuations driven by baryon number conservation and indicates an energy regime dominated by hadronic interactions. These data imply that the QCD critical point could exist at energies higher than 3 GeV if created in heavy-ion collisions.
期刊:
EPJ Web of Conferences,2023年276:01009-null ISSN:2100-014X
通讯作者:
Fan, F
作者机构:
[Fan, Feng; Fan, F] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
通讯机构:
[Fan, F ] C;Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
会议名称:
20th International Conference on Strangeness in Quark Matter (SQM)
会议时间:
JUN 13-18, 2022
会议地点:
Busan, SOUTH KOREA
会议主办单位:
[Fan, Feng] Cent China Normal Univ, Wuhan 430079, Hubei, Peoples R China.
会议论文集名称:
EPJ Web of Conferences
关键词:
conference;proceedings;physics;astronomy;The European Physical Journal;EPJ
摘要:
Measurements of charged-particle production in pp and p-Pb collisions at root S-NN = 5.02 TeV in the toward, away and transverse regions are discussed. These three regions are defined event by event relative to the track with the largest transverse momentum (p(T)(trig)). The transverse region is sensitive to the underlying event (UE), but it also includes contributions from initialand final-state radiation (ISR-FSR). Therefore, it is further subdivided in two regions, defined according to their relative multiplicities: trans-max (the sub-transverse region with the larger multiplicity) and trans -min (the sub-transverse region with the smaller multiplicity) regions which have an enhanced sensitivity to ISR-FSR and UE, respectively. KNO-like scaling properties are explored in the three defined regions. Finally, the relationship between p(T)(trig) and the energy detected in a region close to beam rapidity (very forward energy) is reported.
作者机构:
[Wang, Ji; Xu, Hongbo; Xiao, Jian] Cent China Normal Univ, Dept Elect & Informat Engn, Wuhan, Peoples R China.;[Xie, Wenwu] Hunan Inst Sci & Technol, Sch Informat Sci & Engn, Yueyang, Peoples R China.;[Wang, Xinhua] Qingdao Univ, Coll Elect Engn, Qingdao, Peoples R China.;[Wang, Chaowei] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing, Peoples R China.
会议名称:
IEEE Wireless Communications and Networking Conference (WCNC)
会议时间:
MAR 26-29, 2023
会议地点:
Glasgow, SCOTLAND
会议主办单位:
[Xiao, Jian;Wang, Ji;Xu, Hongbo] Cent China Normal Univ, Dept Elect & Informat Engn, Wuhan, Peoples R China.^[Xie, Wenwu] Hunan Inst Sci & Technol, Sch Informat Sci & Engn, Yueyang, Peoples R China.^[Wang, Xinhua] Qingdao Univ, Coll Elect Engn, Qingdao, Peoples R China.^[Wang, Chaowei] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing, Peoples R China.
会议论文集名称:
IEEE Wireless Communications and Networking Conference
摘要:
Motivated by the development of single image superresolution (SR) reconstruction in computer version, classic SR networks have been widely applied to the channel estimation of wireless communication system. To capture the spatial correlations in the reflection element-domain of reconfigurable intelligent surface (RIS), we propose a multi-scale supervised learning-based Laplacian pyramid wide residual network (LapWRes) to achieve the progressive reconstruction of cascaded channel in a coarse-to-fine fashion. The LapWRes can be divided vertically into feature extraction branch (FEB) and channel reconstruction branch (CRB), while it can also be viewed horizontally as multiple channel reconstruction modules (RMs) at different scales. In the FEB, the wide activation residual blocks are stacked to extract the high-frequency information of cascaded channel. In the CRB, the high-frequency and low-frequency information of cascaded channel is fused by utilizing the residual learning. Simulation results show that the LapWRes can achieve better estimation accuracy than other channel estimation schemes and faster convergence than existing SR network-based channel estimation models.