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Top quark pair production at complete NLO accuracy with NNLO+NNLL′corrections in QCD

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Chinese physics C 2020年第8期44卷 40-45页

作者： MichałCzakon Andrea Ferroglia Alexander Mitov Davide Pagani Andrew S.Papanastasiou Benjamin D.Pecjak Darren J.Scott Ioannis Tsinikos Xing Wang Li Lin Yang Marco Zaro Institut für Theoretische Teilchenphysik und Kosmologie RWTH Aachen UniversityD-52056 AachenGermany New York City College of Technology BrooklynNY 11201USA The Graduate School and University Center The City University of New YorkNew YorkNY 10016 USA Cavendish laboratory University of CambridgeCB30HE CambridgeUK Technische Universität München James-Franck-Str.1D-85748 GarchingGermany Theory Group Deutsches Elektronen-Synchrotron(DESY)D-22607 HamburgGermany Institute for particle physics Phenomenology University of DurhamDH13LE DurhamUK Institute for Theoretical physics University of AmsterdamScience Park 9041098 XH AmsterdamThe Netherlands Nikhef Theory GroupScience Park 1051098 XGAmsterdamThe Netherlands Theoretical particle physics Department of Astronomy and Theoretical PhysicsLund UniversitySölvegatan 14ASE-22362 LundSweden PRISMA+Cluster of Excellence Johannes Gutenberg UniversityD-55128 MainzGermany Zhejiang Institute of Modern physics Department of PhysicsZhejiang UniversityHangzhou 310027China INFN Sezione di MilanoVia Celoria 1620133 MilanoItaly

We describe predictions for top quark pair differential distributions at hadron colliders,by combining the next-to-next-to-leading order quantum chromodynamics calculations and next-to-leading order electroweak corrections with double resummation at the next-to-next-to-leading logarithmic accuracy of threshold logarithms and small-mass *** the best of our knowledge,this is the first study to present such a combination,which incorporates all known perturbative *** results are presented for the invariant-mass distribution,transverse-momentum distribution,and rapidity distributions.

关键词： top quark production QCD electroweak

How rotational speed of planetary ball mill and polymer load influence the performance and water vapor sorption in solid dispersions composed of tadalafil and soluplus

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Particuology 2023年第2期73卷 37-46页

作者： Karol Kubat Anna Krupa Witold Brniak Agnieszka Węgrzyn Dorota Majda Agata Bogdał Hubert Harańczyk Department of Medical physics Faculty of PhysicsInstitute of PhysicsJagiellonian UniversityCracowPoland Department of Pharmaceutical Technology and Biopharmaceutics Faculty of PharmacyCollegium MedicumJagiellonian UniversityCracowPoland Faculty of Chemistry Jagiellonian UniversityCracowPoland

The presence of residual water may deteriorate the performance of amorphous solid dispersions prepared by ball milling,affecting molecular mobility,crystallinity,particle size and finally,the drug dissolution *** the stability of these metastable systems depend on both formulation and process variables,the aim of this study was to assess for the first time,the impact that the polymer load and the rotational speed applied upon high energy ball milling could have on the performance of binary co-milled solid dispersions composed of tadalafil(a hydrophobic crystalline drug)and Soluplus(an amphiphilic,hygroscopic amorphous polymer).Each of these variables was tested at three *** electron microscopy,laser diffraction and X-ray powder diffraction were used to analyze morphology,particle size distribution and crystallinity of ball milled formulations *** studies were also carried *** tools of applied physics,namely solid state 1H NMR and relaxometry were used to assess the structure and water mobility upon gaseous phase hydration on *** was shown that both tested variables determined the particle size of the *** the rotational speed of 400 rpm was used,all solid dispersion were XRD-amorphous,but to ensure the immediate release of tadalafil its micellar solubilization in Soluplus was *** the formulation was exposed to water vapor,the hydration level increased with an increasing polymer load as ***,the rotational speed governed the space available for the adsorption of water molecules and their organization in a monolayer or *** behavior may have impact on the kinetics of the amorphous drug recrystallization,and finally deteriorate its dissolution.

关键词： Tadalafil Soluplus Solid dispersion Relaxation time Milling NMR

The First Benchmarking of ITER BR Nb_3Sn Strand of CNDA

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维普期刊数据库

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Plasma Science and Technology 2012年第9期14卷 847-849页

作者：龙风刘方武玉倪志鹏 Institute of Plasma physics Chinese Academy of Sciences

According to the International Thermonuclear Experimental Reactor （ITER） Pro- curement Arrangement （PA） of Cable-In-Conduit Conductor （CICC） unit lengths for the Toroidal Field （TF） and Poloidal Field （PF） magnet systems of ITER, at the start of process qualification, the Domestic Agency （DA） shall be required to conduct a benchmarking of the room and low tem- perature acceptance tests carried out at the Strand Suppliers and/or at its Reference Laboratories designated by the ITER Organization （IO）. The first benchmarking was carried out successfully in 2009. Nineteen participants from six DAs （China, european Union, Japan, South Korea, Russia, and the United States） participated in the first benchmarking. Bronze-route （BR） Nb3Sn strand and samples prepared by the ITER reference lab （cern） were sent out to each participant by cern. In this paper, the test facility and test results of the first benchmarking by the Chinese DA （CNDA） are presented.

关键词： benchmarking BR NbaSn CNDA

Observatory science with eXTP

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Science China(physics,Mechanics & Astronomy) 2019年第2期62卷 97-138页

作者： Jean J.M.in 't Zand Enrico Bozzo JinLu Qu Xiang-Dong Li Lorenzo Amati Yang Chen Immacolata Donnarumma Victor Doroshenko Stephen A.Drake Margarita Hernanz Peter A.Jenke Thomas J.Maccarone Simin Mahmoodifar Domitilla de Martino Alessandra De Rosa Elena M.Rossi Antonia Rowlinson Gloria Sala Giulia Stratta Thomas M.Tauris Joern Wilms XueFeng Wu Ping Zhou Iván Agudo Diego Altamirano Jean-Luc Atteia Nils A.andersson M.Cristina Baglio David R.Ballantyne Altan Baykal Ehud Behar Tomaso Belloni Sudip Bhattacharyya Stefano Bianchi Anna Bilous Pere Blay Joao Braga Sφren Brandt Edward F.Brown Niccolo Bucciantini Luciano Burderi Edward M.Cackett Riccardo Campana Sergio Campana Piergiorgio Casella Yuri Cavecchi Frank Chambers Liang Chen Yu-Peng Chen Jér?me Chenevez Maria Chernyakova ChiChuan Jin Riccardo Ciolfi Elisa Costantini Andrew Cumming Antonino D'Aì Zi-Gao Dai Filippo D'Ammando Massimiliano De Pasquale Nathalie Degenaar Melania Del Santo Valerio D'Elia Tiziana Di Salvo Gerry Doyle Maurizio Falanga XiLong Fan Robert D.Ferdman Marco Feroci Federico Fraschetti Duncan K.Galloway Angelo F.Gambino Poshak Gandhi MingYu Ge Bruce Gendre Ramandeep Gill Diego G?tz Christian Gouiffès Paola Grandi Jonathan Granot Manuel Güdel Alexander Heger Craig O.Heinke Jeroen Homan Rosario Iaria Kazushi Iwasawa Luca Izzo Long Ji Peter G.Jonker Jordi José Jelle S.Kaastra Emrah Kalemci Oleg Kargaltsev Nobuyuki Kawai Laurens Keek Stefanie Komossa Ingo Kreykenbohm Lucien Kuiper Devaky Kunneriath Gang Li En-Wei Liang Manuel Linares Francesco Longo FangJun Lu Alexander A.Lutovinov Denys Malyshev Julien Malzac Antonios Manousakis Ian McHardy Missagh Mehdipour YunPeng Men Mariano Méndez Roberto P.Mignani Romana Mikusincova M.Coleman Miller Giovanni Miniutti Christian Motch Joonas Nättilä Emanuele Nardini Torsten Neubert Paul T.O'Brien Mauro Orlandini Julian P.Osborne Luigi Pacciani Stéphane Paltani Maurizio Paolillo Iossif E.Papadakis Biswajit Paul Alberto Pellizzoni Uria Peretz Miguel A.Pérez Torres Emanuele Perinati Chanda Prescod-Weinstein Pablo Reig SRON Netherlands Institute for Space Research Department of Astronomy University of Geneva Key laboratory for particle Astrophysics Institute of High Energy PhysicsChinese Academy of Sciences School of Astronomy and Space Science Nanjing University INAF-IASF Bologna ASI Via del Politecnico snc INAF-Istituto di Astrofisica e Planetologie Spaziali Institut für Astronomie und Astrophysik Tübingen Universit?t Tübingen NASA Goddard Space Flight Center ICREA&Institute of Space Sciences(IEEC-CSIC) Campus UABCarrer de Can Magrans CSPAR SPA University of Alabama in Huntsville Department of physics Texas Tech University INAF Osservatorio Astronomico di Capodimonte Leiden Observatory Leiden University Anton Pannekoek Institute University of Amsterdam ASTRON Netherlands Institute for Radio Astronomy Universitat Politecnica de Catalunya(UPC-IEEC) Universitádegli Studi di Urbino‘Carlo Bo’ Max-Planck-Institut für Radioastronomie Dr.Karl-Remeis-Sternwarte and Erlangen Centre for Astroparticle physics(ECAP) Friedrich Alexander Universit?t Erlangen-Nurnberg Purple Mountain Observatory Chinese Academy of Sciences Instituto de Astrofysíca de Andalucia-CSIC Department of physics and Astronomy University of Southampton IRAP Universitéde ToulouseCNRSUPSCNES Mathematical Sciences and STAG Research Centre University of Southampton New York University Abu Dhabi Center for Relativistic Astrophysics School of PhysicsGeorgia Institute of Technology physics Department Middle East Technical University Department of physics Technion-Israel Institute of Technology INAF Osservatorio Astronomico di Brera Tata Institute of Fundamental Research Dipartimento di Matematica e Fisica Universitàdegli Studi Roma Tre Instituto de Astrofísica de Canarias Instituto Nacional de Pesquisas Espaciais-INPE National Space Institute Technical University of Denmark(DTU Space) Department of physics and Astronomy Michigan State University INAF Osservatorio Astrofisico di Arcetri Dipartimento di Fisica Universitádegli Studi di Cagliari Department of physics and A

In this White Paper we present the potential of the enhanced X-ray Timing and Polarimetry(eXTP) mission for studies related to Observatory Science targets. These include flaring stars, supernova remnants, accreting white dwarfs, low and high mass X-ray binaries, radio quiet and radio loud active galactic nuclei, tidal disruption events, and gamma-ray bursts. eXTP will be excellently suited to study one common aspect of these objects: their often transient nature. Developed by an international Consortium led by the Institute of High Energy physics of the Chinese Academy of Science, the eXTP mission is expected to be launched in the mid 2020s.

关键词： space research in struments nuclear astrophysics flare stars accretion and accretion disks mass loss and stellar winds cataclysmic binaries X-ray binaries supernova remnants active galactic nuclei X-ray bursts gamma-ray bursts gravitational waves

Size-dependent undercooling of pure Sn by single particle DSC measurements

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Chinese Science Bulletin 2010年第19期55卷 2063-2065页

作者： YANG Bin GAO YuLa ZOU ChangDong ZHAI QiJie ZHURAVLEV.E SCHICK.C Shanghai Key laboratory of Modern Metallurgy & Materials Processing Shanghai University Shanghai 200072 China Institute of physics University of Rostoek Wismarsche Str 43-45 18051 Rostock Germany

The size-dependent solidification undercooling was investigated for single micro-sized particles of pure Sn employing differential scanning calorimeter(DSC).The particles were obtained from a solvent-encapsulation remelting and quenching(SERQ) *** of the basically unchanged spherical shape of the measured single particles during a series of continuous heating and cooling processes,it allows studying the independent effect of particle size on *** classical nucleation theory in conjunction with available thermodynamic data yields an increasing undercooling with decreasing particle *** theoretical description is in good agreement with the experimental data.

关键词：粒子测量过冷度尺寸依赖性数码相机纯锡球形颗粒颗粒大小扫描量热法

Dense matter with eXTP

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Science China(physics,Mechanics & Astronomy) 2019年第2期62卷 28-44页

作者： Anna L.Watts WenFei Yu Juri Poutanen Shu Zhang Sudip Bhattacharyya Slavko Bogdanov Long Ji Alessandro Patruno Thomas E.Riley Pavel Bakala Altan Baykal Federico Bernardini Ignazio Bombaci Edward Brown Yuri Cavecchi Deepto Chakrabarty Jér?me Chenevez Nathalie Degenaar Melania Del Santo Tiziana Di Salvo Victor Doroshenko Maurizio Falanga Robert D.Ferdman Marco Feroci Angelo F.Gambino MingYu Ge Svenja K.Greif Sebastien Guillot Can Gungor Dieter H.Hartmann Kai Hebeler Alexander Heger Jeroen Homan Rosario Iaria Jean in 't Zand Oleg Kargaltsev Aleksi KurkelaTheoretical physics Department cern XiaoYu Lai Ang Li XiangDong Li ZhaoSheng Li Manuel Linares FangJun Lu Simin Mahmoodifar Mariano Méndez M.Coleman Miller Sharon Morsink Joonas N?ttil? Andrea Possenti Chanda Prescod-Weinstein JinLu Qu Alessandro Riggio Tuomo Salmi Andrea Sanna Andrea Santangelo Hendrik Schatz Achim Schwenk LiMing Song Eva?rámková Benjamin Stappers Holger Stiele Tod Strohmayer Ingo Tews Laura Tolos Gabriel T?r?k David Tsang Martin Urbanec Andrea Vacchi RenXin Xu YuPeng Xu Silvia Zane GuoBao Zhang ShuangNan Zhang WenDa Zhang ShiJie Zheng Xia Zhou Anton Pannekoek Institute for Astronomy University of Amsterdam Shanghai Astronomical Observatory Tuorla Observatory Department of Physics and Astronomy University of Turku Nordita KTH Royal Institute of Technology and Stockholm University Institute of High Energy physics Chinese Academy Sciences Tata Institute of Fundamental Research Columbia Astrophysics laboratory Columbia University Institut für Astronomie und Astrophysik Tübingen Universit?t Tübingen Leiden Observatory Leiden University Research Center for Computational physics and Data Processing Silesian University in Opava physics Department Middle East Technical University INAF Osservatorio Astronomico di Roma New York University Abu Dhabi Dipartimento di Fisica Enrico Fermi University of Pisa INFN Italian National Institute for Nuclear physics Department of physics and Astronomy Michigan State University Department of Astrophysical Sciences Princeton University Mathematical Sciences and STAG Research Centre University of Southampton MIT Kavli Institute for Astrophysics and Space Research DTU Space Technical University of Denmark INAF/IASF Palermo via Ugo La Malfa 153 Universita degli Studi di Palermo Dipartimento di Fisica e Chimica International Space Science Institute (ISSI) Faculty of Science University of East Anglia INAF Istituto di Astrofisica e Planetologie Spaziali Institut für Kernphysik Technische Universit?t Darmstadt ExtreMe Matter Institute EMMI GSI Helmholtzzentrum für Schwerionenforschung GmbH Instituto de Astrof'?sica Pontificia Universidad Católica de Chile Department of physics & Astronomy Kinard Lab of Physics Clemson University School of physics and Astronomy Monash University SRON Netherlands Institute for Space Research Department of physics The George Washington University Faculty of Science and Technology University of Stavanger School of physics and Mechanical & Electrical Engineering Hubei University of Education Department of Astronomy Xiamen University (Haiyun Campus) School of Astronomy and Space

In this White Paper we present the potential of the Enhanced X-ray Timing and Polarimetry(eXTP) mission for determining the nature of dense matter; neutron star cores host an extreme density regime which cannot be replicated in a terrestrial laboratory. The tightest statistical constraints on the dense matter equation of state will come from pulse profile modelling of accretion-powered pulsars, burst oscillation sources, and rotation-powered pulsars. Additional constraints will derive from spin measurements, burst spectra, and properties of the accretion flows in the vicinity of the neutron star. Under development by an international Consortium led by the Institute of High Energy physics of the Chinese Academy of Sciences, the eXTP mission is expected to be launched in the mid 2020 s.

关键词： neutron X-rays dense matter equation of state

基于石墨烯的新原理微纳机电系统:机遇与挑战

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基于石墨烯的新原理微纳机电系统:机遇与挑战

The road of gaining mass for gauge boson: interpretation of Nobel Prize in physics 2013

中国力学学会学术大会'2009

作者：郑泉水刘益伦杨佳瑞 Francois Grey 程耀清华大学航天航空学院工程力学系 european laboratory for particle physics 清华大学工物系

石墨早就被用于作为固体润滑材料、铅笔、电刷等等,长期默默无闻但随处可遇。然而,近年来关于石墨有了一系列令人吃惊的发现,如石墨烯的单独稳定存在、纳米石墨条带的极优传导特性、纳米级光滑接触的超低摩擦,等等。微纳米石墨的研究急...

石墨早就被用于作为固体润滑材料、铅笔、电刷等等,长期默默无闻但随处可遇。然而,近年来关于石墨有了一系列令人吃惊的发现,如石墨烯的单独稳定存在、纳米石墨条带的极优传导特性、纳米级光滑接触的超低摩擦,等等。微纳米石墨的研究急剧成为了科技界的新宠,如在Nature和Science上发表的论文数已经与碳纳米

关键词：

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cnki会议

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Chinese Science Bulletin 2014年第15期59卷 1784-1786页

作者： Qing Wang Department of physics Tsinghua University

The Nobel Prize in physics 2013 was awarded jointly to Franc?ois Englert and Peter *** with no surprise‘‘for the theoretical discovery of a mechanism that contributes to our understanding of the origin of mass of subatomic particles,and which recently was confirmed through the discovery of the predicted fundamental particle,by the ATLAS and CMS experiments at cern’s Large Hadron Collider’’.This partially settles down the story concerning the discovery of‘‘God particle’’.

关键词：诺贝尔经济学奖规范玻色子质量物理学欧洲核子研究中心亚原子粒子道路诺贝尔物理奖

Electroweak vacuum stability and diphoton excess at 750 GeV

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Chinese physics C 2016年第8期40卷 1-10页

作者：张珏周顺 Institute of High Energy physics Chinese Academy of Sciences Beijing 100049 China Center for High Energy physics Peking University Beijing 100871 China

Recently, both ATLAS and CMS collaborations at the cern Large Hadron Collider （LHC） announced their observations of an excess of diphoton events around the invariant mass of 750 GeV with a local significance of 3.6a and 2.6a, respectively. In this paper, we interpret the diphoton excess as the on-shell production of a real singlet scalar in the pp → S →γγchannel. To accommodate the observed production rate, we further introduce a vector-like fermion F, which carries both color and electric charges. The viable regions of model parameters are explored for this simple extension of the Standard Model （SM）. Moreover, we revisit the problem of electroweak vacuum stability in the same scenario, and find that the requirement for the electroweak vacuum stability up to high energy scales imposes serious constraints on the Yukawa coupling of the vector-like fermion and the quartic couplings of the SM Higgs boson and the new singlet scalar. Consequently, a successful explanation for the diphoton excess and the absolute stability of electroweak vacuum cannot be achieved simultaneously in this economical setup.

关键词： vacuum stability diphoton excess singlet scalar